JP5038271B2 - Electrical and electronic control device and manufacturing method thereof - Google Patents

Description

  The present invention relates to an electric / electronic control device having a resin sealing structure and a method for manufacturing the same.

  Electrical and electronic control devices mounted on automobiles and the like are required to have a configuration that protects a wiring board and electronic components mounted on the wiring board by preventing intrusion of water or corrosive gas.

  As such an electrical and electronic control device, for example, an electronic circuit board, an electronic component mounted on the electronic circuit board, and a connector having a connection metal terminal that is detachably connected to an external electronic circuit system are made of resin. Is known that is integrally sealed (see Patent Document 1, etc.).

JP 2004-111435 A

  As a resin sealing method of the electric / electronic control device, for example, there is a transfer molding method. The thermosetting resin (composition) used in this transfer molding method has high fluidity when the resin is filled into the mold and heat resistance after molding, and has high reliability. In addition, the transfer molding method using thermosetting resin requires a relatively long molding time. However, if a MAP (Mold Array Package) method that simultaneously molds multiple electric and electronic control devices is used, production is possible. Efficiency can be improved.

  However, in recent years, as represented by technologies such as SiP (System in Package) and MCP (Multi Chip Package), there is an opportunity to use a technology that incorporates a plurality of semiconductor chips in one package and forms a multistage stack package. Increasingly, electronic components such as semiconductor packages and electronic circuit boards on which these components are mounted are becoming larger.

  Thus, when the electronic circuit board that is the object of resin sealing becomes larger, the amount of resin required for sealing increases, and the transfer mechanism that pushes molten resin into the mold needs to be enlarged and increased in thrust. It becomes. Further, when an electric / electronic control device having components such as connectors is formed, the mold shape becomes complicated. Furthermore, due to the increase in size and complexity of the mold, stable heat supply to the entire mold becomes difficult. Therefore, it is difficult to simultaneously mold a plurality of electric and electronic control devices by the transfer mold molding method, and there is a problem that the production efficiency is remarkably lowered.

  In addition, as a resin sealing method of the electric / electronic control device, there is injection molding using a thermoplastic resin (composition), and the molding can be performed in a shorter time compared to the transfer molding method. However, the molding pressure and the resin temperature are high, and there is a risk of misalignment of electronic components or a flow of bonding wiring, which is inferior to the transfer molding method in terms of reliability.

  The present invention has been made in view of the above, and an object of the present invention is to provide a highly reliable electric and electronic control device and a method for manufacturing the same that can suppress a reduction in production efficiency due to an increase in size of an electronic circuit board.

In order to achieve the above object, the present invention includes a step of mounting an electronic component on a wiring board, and transfer molding or compression molding of the electronic component mounted on the wiring board with a thermosetting resin composition. in a first resin sealing step of a resin sealing, the wiring substrate, a step of mounting the external connection terminals for electrically connecting the electronic circuit and the external electronic circuitry on the circuit board, the wiring substrate and said first resin sealing said electronic component sealed by resin in step a, the injection molding with a thermoplastic resin composition, or a second resin sealing step of integrally resin-sealed by potting molding Yes, and wherein in the first resin sealing step, in the wiring substrate, at least, it shall be sealed with resin except for a portion of mounting the external connection terminals.
In order to achieve the above object, the present invention includes a step of mounting an electronic component on each of a plurality of wiring boards, and a thermosetting resin composition including the electronic component mounted on each of the plurality of wiring boards. A first resin sealing step in which resin molding is performed by transfer molding using a material or compression molding, and at least one of the plurality of wiring boards is electrically connected to an electronic circuit on the wiring board and an external electronic circuit system. Mounting the external connection terminals to be connected to each other, electrically connecting the plurality of wiring boards, the plurality of wiring boards and the electronic component resin-sealed in the first resin sealing step A second resin sealing step of integrally resin-sealing by injection molding with a thermoplastic resin composition or potting molding, and in the first resin sealing step, on the wiring board, at least It shall be sealed with resin except for the portion and the portion for electrically connecting said plurality of wiring boards for mounting the external connection terminals.

  According to the present invention, it is possible to manufacture a highly reliable electric and electronic control device while suppressing a decrease in production efficiency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a diagram showing a process of a method for manufacturing an electrical / electronic control apparatus according to the first embodiment.

  The electric / electronic control device manufactured in the process shown in FIG. 1 is, for example, an in-vehicle engine control unit (ECU), which is mounted on the wiring board 2 on which the electronic components 1a and 1b are mounted, and on the wiring board 2. Resin 5 that covers electronic components 1a and 1b, external connection terminals 3 that are mounted on wiring board 2 and electrically connect an electronic circuit on wiring board 2 and an external electronic circuit system, and electrons that are covered with resin 5 A resin 7 that covers the components 1a and 1b and the wiring board 2 is provided (see FIG. 1: (Step 1-4)).

  Hereinafter, the details of each step of the method for manufacturing the electrical and electronic control device according to the present embodiment will be described in order.

(Step 1-1)
First, the electronic components 1 a and 1 b are mounted on the wiring board 2.

  The electronic components 1a and 1b use Sn / Pb eutectic solder, Sn / Ag / Cu-based lead-free solder, etc., and pass the wiring board 2 through a reflow furnace at 200 to 260 ° C. Or mounted on one side. Examples of electronic components mounted on the wiring board 2 include electronic components 1a such as FETs (Field Effect Transistors), ICs (Integrated Circuits), diodes, crystals, ceramic capacitors, chip resistors, and electronic components 1b such as microcomputers. Is used.

  The wiring board 2 has at least one wiring layer (for example, four layers), and its size is, for example, 103 mm × 90 mm × 1.6 mm. As the wiring board 2, for example, a resin printed board (glass epoxy (FR4) board or the like) in which glass fiber or inorganic filler is blended with epoxy resin, polyimide resin, or pismaleimide triazine resin, a flexible board made of polyimide or liquid crystal polymer. A ceramic substrate or a metal substrate is used.

(Step 1-2)
Next, the electronic components 1 a and 1 b mounted on the wiring board 2 are sealed with the resin 5.

  When sealing the electronic components 1a and 1b, a part of the wiring board 2 is sealed with the resin 5 together with the electronic components 1a and 1b. However, the portion where the external connection terminal 3 is mounted is excluded.

  A configuration in which the wiring board 2 (except for a part) and the electronic components 1a and 1b are sealed with a resin is called a submodule 11. In this (step 1-2), resin-sealing is performed by a transfer mold molding method, and the submodule 11 is molded.

  Here, the transfer mold forming method of the present embodiment will be described with reference to FIG. FIG. 2 is a longitudinal sectional view showing a state of transfer mold forming in (Step 1-2).

  In the transfer mold molding method of the present embodiment, resin sealing is performed using an upper mold 8 and a lower mold 9, which are molding dies, a plunger 10, and the like. The upper mold 8 and the lower mold 9 are dug for external molding of the submodule 11, and the upper mold 8 and the lower mold 9 define a filling space for the sealing resin. The upper mold 8 and the lower mold 9 are formed so that a plurality of (for example, two) filling spaces are formed, and the wiring board 2 is arranged in these filling spaces and filled with a sealing resin. Resin sealing is performed.

  Specifically, first, a molding die 8 in which a plurality of (for example, two) wiring boards 2 on which the electronic components 1a and 1b are mounted in (Step 1-1) are set to a predetermined temperature (for example, 175 ° C.). , 9 are respectively arranged in a plurality of (for example, two) filling spaces. Next, the thermosetting resin (composition) 5 is injected and filled into the molding die (filling space) at a predetermined molding pressure (for example, 30 kg / cm ^ 2) by the plunger 10 and sealed for 120 seconds. Perform molding. Thereby, a plurality of (for example, two) submodules 11 are formed.

  In the above transfer molding method, the thermosetting resin 5 filled in the molding dies 8 and 9 is, for example, a physical property value having a linear expansion coefficient of 16 ppm / ° C., an elastic modulus of 15 GPa, and a glass transition temperature of 125 ° C. Use what has. The physical property values of the cured thermosetting resin 5 are, for example, a linear expansion coefficient of 5 to 25 ppm / ° C., an elastic modulus of 8 to 30 GPa, and a glass transition temperature of 80 to 200 ° C. As a material of such a thermosetting resin 5, for example, as a material of the thermosetting resin 5, for example, an epoxy-based composite material (thermosetting resin) that includes an inorganic filler and is solid at 40 degrees or less is used. It is done. Examples of the inorganic filler to be added to the epoxy composite material include crushed (square shape) such as fused silica, crystalline silica, alumina, magnesium oxide, boron nitride, silicon nitride, and silicon carbide, or spherical shape. There is Fira. At least one of the above fillers can be added to the epoxy composite material.

  The transfer molding method has the following characteristics. That is, many of the thermosetting resins used in the transfer mold forming method have good resin fluidity at the time of filling, and deformation of parts and the like is small. Moreover, the heat resistance and adhesiveness after shaping | molding are high, and thermal expansibility and moisture absorption are low. Moreover, although the time required for molding is long, by using a method such as a MAP (Multi Chip Package) method, a plurality of resins can be sealed at the same time, so that productivity can be improved and manufacturing cost can be reduced.

  Returning to FIG.

(Step 1-3)
Next, the external connection terminal 3 for electrically connecting the electronic circuit on the wiring board 2 and the external electronic circuit system is mounted on the wiring board 2 of the submodule 11 formed in (Step 1-2).

The external connection terminal 3 includes a connector housing 4 made of, for example, a thermoplastic resin (composition) , and the external connection terminal 3 and the connector housing 4 constitute a connector 6. As a material of the external connection terminal 3, for example, copper, iron, or an alloy thereof plated with tin, gold, nickel, zinc, or the like is used. The external connection terminals 3 are mounted on the wiring board 2 (submodule 11) by a method such as soldering or press fitting.

(Step 1-4)
Next, the submodule 11 and the external connection terminal 3 are integrally sealed with the resin 7.

  As a result, the wiring board 2 and the electronic components 1a and 1b resin-sealed in (Step 1-2) are integrally resin-sealed, and the electric / electronic control apparatus according to this embodiment is obtained. In (Step 1-4), the resin sealing between the submodule 11 and the external connection terminal 3 (connector 6) is performed by injection molding with a thermoplastic resin (composition) 7. As the thermoplastic resin 7, a glass fiber reinforced polybutylene terephthalate raw material resin is used, and resin molding is performed under conditions of a cylinder temperature of 225 ° C. and a mold temperature of 80 ° C.

  The thermoplastic resin 7 is not limited to the glass fiber reinforced polybutylene terephthalate raw material resin, but may be any one that can be injection-molded and has good moldability. For example, olefinic resins such as polyethylene and polypropylene, polystyrene, and high impact. Polystyrene resins such as polystyrene, AAS resin, AS resin, ABS resin, MBS resin, AES resin, styrene-maleic anhydride copolymer, polyester resins such as polyvinyl chloride, polyethylene terephthalate, polybutylene terephthalate, polycarbonate resins , Engineering plastics such as polyamide resin, polyphenylene ether, polyoxymethylene, polymethyl methacrylate, polyetherimide, polyphenylene sulfide, polyester liquid crystal polymer, or It can be used a mixture of these. Moreover, fillers and additives, such as glass fiber, may be mix | blended with these materials.

  Next, the effect of the present embodiment configured as described above will be described in comparison with a comparative example. First, the steps of the method for manufacturing the electrical and electronic control device of the comparative example will be described in order with reference to FIG.

(Step 4-1)
First, the electronic components 1 a and 1 b are mounted on the wiring board 2.

(Step 4-2)
Next, the external connection terminals 3 are mounted on the wiring board 2.

(Step 4-3)
Next, the wiring board 2, the electronic components 1 a and 1 b, and the external connection terminals 3 are resin-sealed by a transfer molding method using a thermosetting resin 5. Thereby, the electric and electronic control apparatus in a prior art is obtained.

  In such a transfer mold molding method, the time required for molding is long, but productivity is enhanced by simultaneously performing a plurality of resin sealing using a method such as a MAP method. However, as electronic components such as semiconductor packages and electronic circuit boards on which these components are mounted are increased in size, the amount of resin required for sealing increases, and the transfer mechanism that pushes molten resin into the mold increases in size and thrust. Needs to be made. Further, when an electric / electronic control device having components such as connectors is formed, the mold shape becomes complicated. Furthermore, due to the increase in size and complexity of the mold, stable heat supply to the entire mold becomes difficult. Therefore, it becomes difficult to simultaneously mold a plurality of electric and electronic control devices by the transfer mold molding method, and the production efficiency is significantly reduced.

  As a resin sealing method of the electric / electronic control device, there is an injection molding method using a thermoplastic resin, and the molding can be performed in a shorter time compared to the transfer molding method. However, the molding pressure and the resin temperature are high, and there is a risk of misalignment of electronic components or a flow of bonding wiring, which is inferior to the transfer molding method in terms of reliability.

  On the other hand, in the manufacturing method of the electric and electronic control device according to the present embodiment, the electronic component and its periphery are resin-sealed by the transfer molding method using a thermosetting resin, and the sealing range is limited. Even if the substrate of the electric / electronic control device is enlarged, a plurality of substrates can be formed at the same time by the transfer molding method, and in the subsequent process, the electric / electronic control device is sealed with an injection molding method using a thermoplastic resin. Therefore, the position shift of the electronic component due to the high temperature of the thermoplastic resin or the flow of bonding wiring is suppressed. Therefore, it is possible to manufacture a highly reliable electric / electronic control device while suppressing a decrease in production efficiency due to an increase in the size of the electronic circuit board.

  In addition, since the external connection terminals are mounted after resin sealing by the transfer molding method, it is not necessary to consider the shape of the external connection terminals in the shape of the mold used for transfer molding, and the shape of the mold is further simplified can do.

  A second embodiment of the present invention will be described with reference to FIG.

  In the first embodiment, the external connection terminal 3 includes the connector housing 4, and the connector 6 is configured by the external connection terminal 3 and the connector housing 4. In the second embodiment, the connector housing 4 The connector housing is integrally formed at the time of resin sealing by injection molding using the external connection terminal 3 that does not have the connector 60 to form the connector 60.

  FIG. 3 is a diagram showing the steps of the method for manufacturing the electric / electronic control device according to the second embodiment of the present invention. In the figure, the same components as those shown in FIG.

  As in the first embodiment, the electrical and electronic control device manufactured in the process shown in FIG. 3 includes the wiring board 2 on which the electronic components 1a and 1b are mounted, and the electronic component 1a and the electronic components 1a, 1b mounted on the wiring board 2. A resin 5 covering 1b, an external connection terminal 3 mounted on the wiring board 2 and electrically connecting an electronic circuit on the wiring board 2 and an external electronic circuit system, and electronic components 1a, 1b covered by the resin 5 And a resin 7 covering the wiring board 2 (see FIG. 3: (Step 2-4)).

  Hereinafter, the details of the steps of the method for manufacturing the electrical and electronic control device according to the present embodiment will be described in order.

(Step 2-1)
First, the electronic components 1 a and 1 b are mounted on the wiring board 2. The electronic components 1a and 1b use Sn / Pb eutectic solder, Sn / Ag / Cu-based lead-free solder, etc., and pass the wiring board 2 through a reflow furnace at 200 to 260 ° C. Or mounted on one side.

(Process 2-2)
Next, the electronic components 1 a and 1 b mounted on the wiring board 2 are resin-sealed by a transfer mold forming method using a thermosetting resin 5.

  When the electronic components 1a and 1b are sealed, a part of the wiring board 2 is sealed with the thermosetting resin 5 together with the electronic components 1a and 1b. However, the portion where the external connection terminal 3 is mounted is excluded. Thereby, the submodule 11 is formed.

(Step 2-3)
Next, the external connection terminal 3 for electrically connecting the electronic circuit on the wiring board 2 and the external electronic circuit system is mounted on the submodule 11 formed in (Step 2-2). The external connection terminals 3 are mounted on the wiring board 2 (submodule 11) by a method such as soldering or press fitting.

(Step 2-4)
Next, the submodule 11 obtained in (Step 2-3) and the external connection terminal 3 are integrally resin-sealed by injection molding using the thermoplastic resin 7. Simultaneously with this resin sealing, the connector housing of the external connection terminal 3 is integrally formed with the thermoplastic resin 7, and the connector 60 is constituted by a part of the external connection terminal 3 and the thermoplastic resin 7. As a result, the wiring board 2 and the electronic components 1a and 1b resin-sealed in (Step 2-2) are integrally resin-sealed, and the electric and electronic control device according to the present embodiment is obtained.

  Other configurations of the electric and electronic control device of the present embodiment and other manufacturing steps are the same as those of the first embodiment.

  Also in the present embodiment configured as described above, the same effects as those of the first embodiment can be obtained.

  In addition, the connector housing of the external connection terminal 3 is integrally configured in the step of sealing the submodule 11 (the wiring board 2 and the electronic components 1a and 1b) and the external connection terminal 3 with the thermoplastic resin 7. Therefore, it is not necessary to form the connector housing 4 in advance, and the manufacturing efficiency of the electric / electronic control board can be improved.

  A third embodiment of the present invention will be described with reference to FIG.

  In the first embodiment, one electrical module is manufactured by sealing one submodule 11 with resin. However, in the third embodiment, two (two types) submodules 13a and 13b are resinated. One electrical and electronic control device is manufactured by sealing.

  FIG. 4 is a diagram showing each step of the method for manufacturing the electrical / electronic control device according to the third embodiment of the present invention. In the figure, members equivalent to those in FIG.

The electrical and electronic control device according to the present embodiment is mounted on the wiring board 2 on which the electronic components 1a and 1b are mounted, the metal board 12 on which the electronic components 1a and the high heat generating component 1c are mounted, and the wiring board 2. A thermosetting resin 5 that covers the electronic components 1a and 1b and the electronic components 1a and 1c mounted on the metal substrate 12, respectively, and an electronic circuit mounted on the wiring substrate 2 and an external electronic circuit system on the wiring substrate 2 An external connection terminal 3 for electrical connection;
The bonding wire 14 that electrically connects the wiring substrate 2 and the metal substrate 12, the electronic components 1 a and 1 b covered with the thermosetting resin 5, the wiring substrate 2, the highly heat-generating component 1 c, and the metal substrate 12 are integrally formed. And a thermoplastic resin 7 to be covered (see FIG. 4: Step 3-4).

  Hereafter, each process in the manufacturing method of this Embodiment is demonstrated in order, referring FIG.

(Step 3-1)
First, the electronic components 1 a and 1 b are mounted on the wiring board 2. The electronic components 1a and 1b use Sn / Pb eutectic solder, Sn / Ag / Cu-based lead-free solder, etc., and pass the wiring board 2 through a reflow furnace at 200 to 260 ° C. Or mounted on one side.

  The electronic component 1c is a highly heat-generating component composed of a power conversion circuit such as a power semiconductor, for example.

  The metal substrate 12 is obtained by, for example, insulating processing with an epoxy resin on a metal substrate containing Al (aluminum) as a main component, and forming circuit wiring with copper foil or the like thereon.

(Step 3-2)
Next, the electronic components 1 a and 1 b mounted on the wiring board 2 are resin-sealed by a transfer mold forming method using a thermosetting resin 5. When the electronic components 1a and 1b are sealed, a part of the wiring board 2 is sealed with the thermosetting resin 5 together with the electronic components 1a and 1b. However, the part for mounting the external connection terminal 3 and the part for joining the bonding wire 14 (joint part) are excluded. Thereby, the submodule 13a is formed.

  Similarly, the electronic components 1 a and 1 c mounted on the metal substrate 12 are resin-sealed by transfer molding using a thermosetting resin 5. However, the part which joins the bonding wire 14 is remove | excluded. Thereby, the submodule 13b is formed.

  In this (Step 3-2), the mold for transfer molding is formed so that a plurality of (for example, four) submodules 13a can be molded at the same time. Sub-module 13a. The same applies to the molding of the submodule 13b. If the substrate size (shape) of the wiring substrate 2 and the metal substrate 12 is the same, the same molding die can be used when the submodule 13a is molded and when the submodule 13b is molded.

(Step 3-3)
Next, the external connection terminal 3 for electrically connecting the electronic circuit on the wiring board 2 and the external electronic circuit system is mounted on the submodule 13a formed in (Step 3-2).

  Note that the connector housing 4 of the external connection terminal 3 may be integrally formed with the thermoplastic resin 7 in the subsequent (step 3-5).

(Step 3-4)
Next, in order to electrically connect the two submodules 13a and 13b, the bonding portion (pad portion) of the submodule 13a and the bonding portion (bonding surface) of the submodule 13b are bonded with a bonding wire 14 such as Al (aluminum). It joins by the used wire bonding.

(Step 3-5)
Next, the submodule 13a and the submodule 13b obtained in (Step 3-4) are integrally resin-sealed by injection molding using the thermoplastic resin 7.

  Thereby, the wiring board 2, the electronic components 1a, 1b, and 1c, the metal board 12, and the external connection terminal 3 are integrally resin-sealed, and the electrical and electronic control apparatus according to this embodiment is obtained.

  Other configurations of the electric and electronic control device of the present embodiment and other manufacturing steps are the same as those of the first embodiment.

  In the present embodiment configured as described above, the same effects as those of the first embodiment can be obtained.

  In addition, while mounting the high heat generation component on the metal substrate with good heat dissipation separately from the wiring substrate on which other components are mounted, the wiring substrate and the metal substrate are integrally sealed to form the electric and electronic control device. It is possible to suppress the heat generated by the high heat generating component (heat generating electronic circuit) from affecting other components (control electronic circuit).

  In addition, the connector housing 4 of the external connection terminal 3 of the present embodiment is integrally formed with the thermoplastic resin 7 in (Step 3-5), similarly to (Step 2-4) of the second embodiment. It is also good.

  Further, in the first to third embodiments of the present invention, the resin sealing is performed by transfer molding using the thermosetting resin 5, but the present invention is not limited to this. For example, the thermosetting resin 5 is used. Resin sealing may be performed by compression molding.

  Further, the resin sealing is performed by injection molding using the thermoplastic resin 7, but the present invention is not limited to this. For example, the resin sealing may be performed by resin potting molding using the thermoplastic resin 7.

  Moreover, although the thermoplastic resin 7 was used, it is not restricted to this, For example, you may use a ultraviolet curable resin. As this ultraviolet curable resin, for example, a resin containing a modified acrylate as a main component is used, and ultraviolet irradiation is performed for 10 to 60 seconds using an ultraviolet irradiation device (not shown) to cure the ultraviolet curable resin. Resin sealing is performed.

It is a figure which shows the process of the manufacturing method of the electrical / electronic control apparatus in 1st Embodiment. It is a longitudinal cross-sectional view which shows the mode of the transfer mold molding in this Embodiment. It is a figure which shows the process of the manufacturing method of the electrical / electronic control apparatus in 2nd Embodiment. It is a figure which shows the process of the manufacturing method of the electrical / electronic control apparatus in 3rd Embodiment. It is a figure which shows the process of the manufacturing method of the electrical / electronic control apparatus of a comparative example.

Explanation of symbols

1a, 1b, 1c Electronic component 2 Wiring board 3 External connection terminal 4 Connector housing 5 Thermosetting resin 6 Connector 7 Thermoplastic resin 8 Upper die 9 Lower die 10 Plunger 11, 13a, 13b Submodule 12 Metal substrate 14 Bonding wire

Claims (8)

Mounting electronic components on a wiring board;
The electronic component mounted on the wiring board, transfer molding of thermosetting resin composition, or a first resin sealing step of a resin sealing by compression molding,
Mounting an external connection terminal for electrically connecting an electronic circuit on the wiring board and an external electronic circuit system on the wiring board;
A resin sealed the electronic component by the said circuit board first resin sealing step, injection molding using a thermoplastic resin composition, or a second resin sealing for integrally resin-sealed by potting molding It possesses a step,
In the first resin sealing step, on the wiring board, resin sealing is performed except at least a portion where the external connection terminal is mounted . Mounting electronic components on each of a plurality of wiring boards;
The electronic component mounted on each of said plurality of wiring boards, transfer molding of thermosetting resin composition, or a first resin sealing step of a resin sealing by compression molding,
Mounting an external connection terminal for electrically connecting an electronic circuit on the wiring board and an external electronic circuit system to at least one of the plurality of wiring boards;
Electrically connecting the plurality of wiring boards;
A second resin seal that integrally seals the plurality of wiring boards and the electronic component resin-sealed in the first resin-sealing process by injection molding or potting molding with a thermoplastic resin composition. possess a stop process,
In the first resin sealing step, resin sealing is performed on the wiring board except for at least a part for mounting the external connection terminal and a part for electrically connecting the plurality of wiring boards. A method for manufacturing an electrical and electronic control device. In the manufacturing method of the electric and electronic control device according to claim 1 or 2 ,
The external connection terminal may have a connector housing that is preformed from a thermoplastic resin composition,
A method for manufacturing an electric / electronic control device , wherein a connection portion between the external connection terminal and the wiring board is resin-sealed in the second resin sealing step . In the manufacturing method of the electric and electronic control device according to claim 1 or 2 ,
In the second resin sealing step, the connector housing of the external connection terminal is integrally formed, and the method for manufacturing the electric / electronic control device is characterized in that: In the manufacturing method of the electric and electronic control device according to any one of claims 1 to 4 ,
The method of manufacturing an electric / electronic control device, wherein the material of the wiring board is any one of glass epoxy, polyimide, ceramic, and metal. In the manufacturing method of the electrical and electronic control apparatus in any one of Claims 1-5 ,
At least one of the wiring boards has the electronic component mounted on both sides thereof. A wiring board on which electronic components are mounted;
An external connection terminal mounted on the wiring board and electrically connecting an electronic circuit on the wiring board and an external electronic circuit system;
Transfer molding or compression molding with a thermosetting resin composition so as to cover the electronic component mounted on the wiring substrate and excluding at least a portion where the external connection terminal is mounted on the wiring substrate. A first resin layer formed by :
A second resin layer formed by injection molding or potting molding with a thermoplastic resin composition so as to integrally cover the electronic component covered with the first resin layer and the wiring board. An electrical and electronic control device. A plurality of wiring boards on which electronic components are mounted;
An external connection terminal mounted on at least one of the plurality of wiring boards and electrically connecting an electronic circuit on the wiring board and an external electronic circuit system;
Wiring for electrically connecting the plurality of wiring boards;
Covering the electronic component mounted on each of the plurality of wiring boards , and on the wiring board, at least a part for mounting the external connection terminal and a part for electrically connecting the plurality of wiring boards Except for the first resin layer formed by transfer molding or compression molding with a thermosetting resin composition ,
The second part formed by injection molding or potting molding with a thermoplastic resin composition so as to integrally cover the electronic component covered with the first resin layer, the plurality of wiring boards, and the wiring. An electrical and electronic control device comprising a resin layer.

Images