WO2005122274A1 - 絶縁ゲート型半導体素子及びその製造方法 - Google Patents
絶縁ゲート型半導体素子及びその製造方法 Download PDFInfo
- Publication number
- WO2005122274A1 WO2005122274A1 PCT/JP2005/006674 JP2005006674W WO2005122274A1 WO 2005122274 A1 WO2005122274 A1 WO 2005122274A1 JP 2005006674 W JP2005006674 W JP 2005006674W WO 2005122274 A1 WO2005122274 A1 WO 2005122274A1
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- WIPO (PCT)
- Prior art keywords
- region
- semiconductor region
- type
- semiconductor
- collector
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 170
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 11
- 239000012535 impurity Substances 0.000 claims description 26
- 239000000969 carrier Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/083—Anode or cathode regions of thyristors or gated bipolar-mode devices
- H01L29/0834—Anode regions of thyristors or gated bipolar-mode devices, e.g. supplementary regions surrounding anode regions
Definitions
- Insulated gate semiconductor device and method of manufacturing the same
- the present invention relates to an insulated gate semiconductor device and a method for manufacturing the same.
- An insulated gate bipolar transistor has the high input impedance of a field effect transistor and the high current drive capability of a bipolar transistor, and is particularly suitable as a power switching element.
- an IGBT has an N-type base region, a P-type base region formed on a predetermined surface region of the N-type base region, and an N + type region formed on a predetermined surface region of the P-type base region.
- a gate insulating film formed on a predetermined surface region of the source region, a gate electrode formed on the gate insulating film, and an emitter electrode electrically connected to the N + type emitter region.
- the P + type collector region is formed on the lower surface of the N_ type base region via the N + type buffer region. Carriers are accumulated in the N_ type base region near the region. Since the accumulated carriers do not have a discharge path, the tail current continues to flow until the recombination disappears, and as a result, the off-speed becomes slow.
- an N + type collector short region is formed in the P + type collector region so as to quickly discharge carriers in the N + type buffer region or in the vicinity of the N ⁇ type base region.
- Patent Document 1 IGBTs have been developed (for example, Patent Document 1).
- Patent Document 1 discloses an N + type buffer region or its Carriers accumulated in the nearby N-type base region can be discharged through the N-type collector short region, so that the off-speed can be increased. Further, since no lifetime killer is used, the forward voltage characteristics are not impaired.
- Patent Document 1 JP-A-5-3205
- the N + type collector short region is formed by diffusing the N-type impurity under the N- type base region. Normally, after forming an N + type collector short region, a P type base region and an N + type emitter region are diffused on the upper surface of the N ⁇ type base region. The width of the area may increase. Thus, as the lateral width of the N + type collector short region increases, the area of the P + type collector region decreases. Therefore, the power of the P + type collector region also reduces the total amount of holes injected into the N ⁇ type base region, and as a result, the degree of conductivity modulation of the device is weakened, and MOS operation becomes remarkable.
- the present invention has been made in view of the above circumstances, and has as its object to provide an insulated gate semiconductor device having a high off-speed and good operation.
- Another object of the present invention is to provide a method of manufacturing an insulated gate semiconductor device having a high off-speed and good operation.
- an insulated gate semiconductor device includes a first semiconductor region of a first conductivity type
- a fourth semiconductor region of a first conductivity type formed in a surface region of the third semiconductor region, and a first electrode electrically connected to the fourth semiconductor region;
- a control electrode disposed on the other main surface side between the first semiconductor region and the fourth semiconductor region via an insulating film
- An insulated gate semiconductor device comprising:
- a fifth semiconductor region of a first conductivity type formed on one main surface of the first semiconductor region and adjacent to the second semiconductor region;
- a sixth semiconductor region of a second conductivity type formed between the fifth semiconductor region and the first semiconductor region.
- the sixth semiconductor region may be formed between the other main surface side of the fifth semiconductor region and the first semiconductor region.
- the fifth semiconductor region may be formed so as to protrude from the second semiconductor region.
- the width of the sixth semiconductor region may be smaller than the width of the fifth semiconductor region.
- the sixth semiconductor region may be formed such that at least a part of the fifth semiconductor region is in contact with the first semiconductor region.
- the impurity concentration of the second conductivity type of said sixth semiconductor region is not good even 1 X 10 15 ⁇ 5 X 10 18 cm- 3.
- the fifth semiconductor region may be formed so as not to face the third semiconductor region.
- the first semiconductor region includes a first region and a second region having a higher impurity concentration than the first region, and the second region is adjacent to the fifth semiconductor region. You may.
- a method for manufacturing an insulated gate semiconductor device comprises:
- the present invention can provide an insulated gate semiconductor device that has a high off-speed and operates well.
- the present invention can provide a method of manufacturing an insulated gate semiconductor device which has a high off-speed and operates well.
- FIG. 1 is a diagram showing a cross-sectional configuration of an insulated gate semiconductor device according to an embodiment of the present invention.
- FIG. 2 is a view illustrating a manufacturing process of the insulated gate semiconductor device according to the embodiment of the present invention.
- FIG. 3 is a diagram showing a cross-sectional configuration of an insulated gate semiconductor device according to another embodiment.
- FIG. 4 is a diagram showing a cross-sectional configuration of an insulated gate semiconductor device according to another embodiment. Explanation of symbols
- An insulated gate semiconductor device according to an embodiment of the present invention will be described with reference to the drawings.
- an insulated gate bipolar transistor (IGBT) as an insulated gate semiconductor element will be described.
- FIG. 1 shows a cross-sectional configuration of IGBT 1 according to the embodiment of the present invention.
- the IGBT 1 includes an N ⁇ type base region 11 as a first semiconductor region, a P + type collector region 12 as a second semiconductor region, and a P type base region 13 as a third semiconductor region.
- An N + type emitter region 14 as a fourth semiconductor region, an N + type collector short region 15 as a fifth semiconductor region, a P + type semiconductor region 16 as a sixth semiconductor region, and a collector electrode 20 as a first electrode.
- the N ⁇ type base region 11 is formed of a first conductivity type, for example, an N type semiconductor region in which an N type impurity such as phosphorus is diffused.
- the N ⁇ type base region 11 is formed, for example, to have a thickness of about 40 to 120 m and an impurity concentration of about 5 ⁇ 10 12 to 3 ⁇ 10 15 cm ⁇ 3 .
- the P + type collector region 12 is composed of a P type semiconductor region in which a P type impurity such as boron is diffused, for example, of the second conductivity type.
- P + type collector region 12 is formed in a predetermined region on one main surface (lower surface) of N ⁇ type base region 11.
- the P + type collector region 12 is electrically connected to a collector electrode 20 formed on the lower surface thereof, and injects holes into the N ⁇ type base region 11 during operation of the IGBT 1 to provide conductivity modulation.
- the P + type collector region 12 is formed to a thickness of, for example, about 2 to 10 m.
- P + type The P-type impurity concentration of the collector region 12 is formed to be, for example, about 1 ⁇ 10 15 to 5 ⁇ 10 18 cm ⁇ 3 .
- the P-type base region 13 is composed of a P-type semiconductor region in which P-type impurities are diffused. P-type base region 13 is formed in a predetermined surface region on the other main surface (upper surface) of N-type base region 11. The P-type base region 13 is formed so as to have an interval between the P-type base regions 13, that is, a width L of the N-type base region 11 between the P-type base regions 13.
- ⁇ -type base region 13 is formed at a position facing ⁇ + -type collector region 12. Therefore, as will be described later, the ⁇ + collector short region 15 formed between the ⁇ + collector regions 12 and the ⁇ -type base region 11 between the ⁇ -type base regions 13 face each other.
- the ⁇ -shaped base region 13 is formed to a thickness of, for example, about 2.5 to 4.5 ⁇ m.
- the P-type impurity concentration in the P-type base region 13 is lower than the impurity concentration in the P + -type collector region 12, for example, about 1 ⁇ 10 16 to 3 ⁇ 10 18 cnf 3 .
- the N + type emitter region 14 is composed of an N-type semiconductor region in which N-type impurities are diffused.
- the N + type emitter region 14 is formed in a predetermined surface region of the P type base region 13.
- the N + type emitter region 14 is electrically connected to an emitter electrode 23 formed on the upper surface.
- the N + type emitter region 14 is formed to a thickness of, for example, about 0.4 to 0.8 ⁇ m.
- the N + -type emitter region 14 is formed to have an N-type impurity concentration higher than that of the N ⁇ -type base region 11, for example, about 5 ⁇ 10 18 to 1 ⁇ 10 2 ° cm- 3 .
- the N + type collector short region 15 is composed of an N type semiconductor region in which N type impurities are diffused.
- the N + type collector short region 15 is formed between the P + type collector region 12 on the lower surface of the N ⁇ type base region 11.
- the P-type base region 13 and the P + -type collector region 12 are formed to face each other, the N + -type collector short region 15 formed between the P + -type collector regions 12 Of the N-type base region 11
- the upper surface of the N + type collector short region 15 protrudes from the P + type collector region 12. It is formed as follows.
- the width of the N + type collector short region 15 is larger than the width L of the N ⁇ type base region 11, for example, about 10 to: LOO / zm.
- the N + type collector short region 15 is formed to a thickness of, for example, about 5 to 30 ⁇ m.
- N-type impurity concentration of the N + -type collector-short region 15, Kogu example from N- type base region 11 is formed on the impurity concentration of approximately 1 X 10 17 ⁇ 1 X 10 2Q C m- 3.
- the N + type collector short region 15 is electrically connected to a collector electrode 20 formed on the lower surface of the N + type collector short region 15 so that the carrier accumulated in the N ⁇ type base region 11 when the device is turned off. It is discharged to the collector electrode 20 and functions to increase the off-speed of the device.
- the P + type semiconductor region 16 is composed of a P type semiconductor region in which P type impurities are diffused.
- the P + type semiconductor region 16 is formed on the upper surface of the N + type collector short region 15 with a thickness of, for example, about 7 to 40 m.
- the P + type semiconductor region 16 is not exposed on the lower surface of the semiconductor substrate and is not directly electrically connected to the collector electrode 20. Therefore, the P + type semiconductor region 16 is in an electrically floating state.
- the P + type semiconductor region 16 functions as a current blocking region for blocking a current flowing through the N ⁇ type base region 11.
- the impurity concentration of the P + type semiconductor region 16 changes at the interface between the P type base region 13 and the N ⁇ type base region 11 when a reverse voltage is applied between the collector electrode 20 and the emitter electrode 23.
- the concentration of the formed PN junction force is set so that the extending depletion layer spreads over substantially the entire thickness of the P + type semiconductor region 16, and is preferably about 5 ⁇ 10 15 to 1 ⁇ 10 18 cm ⁇ 3. . Therefore, the IGBT 1 according to the present embodiment can obtain a relatively large reverse breakdown voltage.
- Collector electrode 20 is also formed of aluminum or the like. The collector electrode 20 is formed on the entire lower surface of the P + type collector region 12 and the N + type collector short region 15, and is electrically connected to the P + type collector region 12 and the N + type collector short region 15.
- the gate electrode 21 is made of a material such as polysilicon.
- the gate electrode 21 is disposed on the P-type base region 13 (channel formation region) between the N- type base region 11 and the N + type emitter region 14 via a gate insulating film 22 such as a silicon-based film. Have been.
- a voltage is applied to the gate electrode 21, a channel is formed in the P-type base region 13.
- the emitter electrode 23 is also constituted by aluminum or the like. The emitter electrode 23 is formed on the upper surface of the N + type emitter region 14 and the like.
- An insulating film 24 such as a silicon-based film is formed between the emitter electrode 23 and the gate electrode 21.
- the electron current I becomes N + as shown in FIG. Type
- the N + type collector short region 15 is formed so as to protrude from the P + type collector region 12, and the P + type semiconductor region 16 is formed on the upper surface of the N + type collector short region 15. Therefore, most of the electron current I flowing toward the upper surface of the N + type collector short region 15 is blocked by the P + type semiconductor region 16 and the P + collector region 12 and the N ⁇ type base region.
- the PN junction formed by the P + collector region 12 and the N ⁇ type base region 11 is deeply biased in the forward direction, and holes are injected into the N ⁇ type base region 11 so that good conductivity is obtained. Modulation occurs.
- the lateral width L of the N + type collector short region 15 is formed to be larger than the width L of the N ⁇ type base region 11 between the P type base regions 13, and the P + type
- the IGBT 1 of the present embodiment when a reverse voltage is applied between the collector electrode 20 and the emitter electrode 23 of the P + type semiconductor region 16, the P-type base region Since the concentration of the depletion layer extending from the PN junction formed at the interface between 13 and the N ⁇ type base region 11 is set so as to extend almost entirely in the thickness direction of the P + type semiconductor region 16, a relatively large reverse direction Withstand pressure is obtained. Further, according to IGBT 1 of the present embodiment, P + type semiconductor region 16 that blocks electron current is in an electrically floating state, so that P + type semiconductor region 16 is connected to one of the semiconductor regions. For example, a parasitic element such as a parasitic transistor or a parasitic thyristor is not formed.
- the PN junction formed by the region 12 and the N-type base region 11 is deeply biased in the forward direction. Therefore, the amount of holes supplied from the P + type collector region 12 to the N ⁇ type base region 11 is increased, and good conductivity modulation can be obtained, and a good IGBT operation can be obtained.
- FIG. 1 shows a manufacturing process of the IGBT 1 according to the present embodiment.
- FIG. 1 shows a manufacturing process of the IGBT 1 according to the present embodiment.
- the process shown in the figure is an example, and the present invention is not limited to this process as long as a similar result is obtained.
- an N-type semiconductor substrate 30 into which an N-type impurity such as arsenic is introduced is prepared.
- a P + type semiconductor region 16 is formed in the lower surface region of the N type semiconductor substrate 30 by an ion implantation method, a thermal diffusion method, or the like.
- the P + type collector region 12 is formed by ion implantation or the like on the entire surface region below the N ⁇ type base region 11 on both sides of the P + type semiconductor region 16.
- an N-type impurity is implanted into the position of the P + semiconductor region 16 formed in FIG. It is shallow and diffuses more than the P + type semiconductor region 16 to form an N + type collector short region 15.
- the P-type impurity and the N-type impurity are continuously and selectively diffused into the surface region of the N ⁇ type base region 11, and as shown in FIG. Form emitter regions 14 are sequentially formed.
- the collector electrode 20 After that, by forming the collector electrode 20, the gate insulating film 22, the gate electrode 21, the insulating film 24, and the emitter electrode 23, the IGBT 1 as shown in FIG. 1 is obtained.
- the width of the P + type semiconductor region 16 is Force formed slightly narrower than the width of short region 15 This may be formed on the entire upper surface of N + type collector short region 15.
- the P + type semiconductor region 16 is not limited to the entire upper surface of the N + type collector short region 15 but may be formed on the side surface. In this case, the P + type semiconductor region 16 needs to be formed so that the N ⁇ type base region 11 contacts at least a part of the side surface of the N + type collector short region 15.
- the width L of the N + collector short region 15 is larger than the width L of the N ⁇ type base region 11 by way of example. Limited to
- the width L of the N + collector short region 15 is smaller than the width L of the N ⁇ type base region 11.
- the N + collector short region 15 is formed.
- the present invention is particularly effective when the width L of the N + collector short region 15 is larger than the width L of the N ⁇ type base region 11 because the influence of the decrease in conductivity modulation is relatively small.
- the N + collector short region 15 biases the PN junction formed by the N ⁇ type base region 11 and the P + collector region 12 deep in the forward direction.
- the N + collector short region 15 may be formed so as to be flush with the P + type collector region 12.
- the P + type collector region 12 may be formed so as to protrude from the N + collector short region 15. In this case, it is preferable to use a non-punch-through MOSFET in which the depletion layer does not contact the P + type collector region 12.
- the N + type collector short region 15 is formed so as to face the N ⁇ type base region 11 between the P type base regions 13, and faces the P type base region 13. It is formed so that it does not. This may be formed, for example, so as to face the P-type base region 13 as shown in FIG. When this configuration is adopted, avalanche breakdown can be caused between the N + type collector short region 15 and the P type base region 13 to determine the reverse breakdown voltage of the device.
- an N + type buffer region 17 composed of an N type semiconductor region in which an N type impurity is diffused is formed so as to be adjacent to the N + type collector short region 15. Also Good.
- the N + type buffer region 17 has an impurity concentration of about 1 ⁇ 10 15 to 1 ⁇ 10 17 cm ⁇ 3 , which is higher than the N type impurity concentration of the N ⁇ type base It is formed to a thickness of the order.
- the present invention is useful for an insulated gate semiconductor device, particularly for an insulated gate bipolar transistor.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/591,009 US7535040B2 (en) | 2004-06-14 | 2005-04-05 | Insulated gate semiconductor device and method for manufacturing same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-176019 | 2004-06-14 | ||
JP2004176019A JP4415767B2 (ja) | 2004-06-14 | 2004-06-14 | 絶縁ゲート型半導体素子、及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2005122274A1 true WO2005122274A1 (ja) | 2005-12-22 |
Family
ID=35503384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/006674 WO2005122274A1 (ja) | 2004-06-14 | 2005-04-05 | 絶縁ゲート型半導体素子及びその製造方法 |
Country Status (3)
Country | Link |
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US (1) | US7535040B2 (ja) |
JP (1) | JP4415767B2 (ja) |
WO (1) | WO2005122274A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105304694A (zh) * | 2014-07-11 | 2016-02-03 | 新唐科技股份有限公司 | 绝缘栅双极晶体管及其制造方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4930904B2 (ja) * | 2007-09-07 | 2012-05-16 | サンケン電気株式会社 | 電気回路のスイッチング装置 |
EP2184781A1 (en) * | 2008-11-05 | 2010-05-12 | ABB Technology AG | Reverse-conducting semiconductor device |
EP2249392B1 (en) * | 2009-04-29 | 2020-05-20 | ABB Power Grids Switzerland AG | Reverse-conducting semiconductor device |
JP5621621B2 (ja) * | 2011-01-24 | 2014-11-12 | 三菱電機株式会社 | 半導体装置と半導体装置の製造方法 |
US9105682B2 (en) * | 2011-02-28 | 2015-08-11 | Infineon Technologies Austria Ag | Semiconductor component with improved dynamic behavior |
CN102544084B (zh) * | 2012-03-15 | 2014-02-12 | 电子科技大学 | 一种双阳极短接的igbt器件 |
JP6854654B2 (ja) * | 2017-01-26 | 2021-04-07 | ローム株式会社 | 半導体装置 |
JP6824135B2 (ja) | 2017-09-29 | 2021-02-03 | 三菱電機株式会社 | 半導体装置及びその製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05152574A (ja) * | 1991-11-29 | 1993-06-18 | Fuji Electric Co Ltd | 半導体装置 |
JP2000004017A (ja) * | 1998-04-24 | 2000-01-07 | Sanken Electric Co Ltd | 絶縁ゲ−ト形バイポ−ラトランジスタ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5264378A (en) * | 1990-04-20 | 1993-11-23 | Fuji Electric Co., Ltd. | Method for making a conductivity modulation MOSFET |
JP2689047B2 (ja) * | 1991-07-24 | 1997-12-10 | 三菱電機株式会社 | 絶縁ゲート型バイポーラトランジスタとその製造方法 |
JP4761644B2 (ja) * | 2001-04-18 | 2011-08-31 | 三菱電機株式会社 | 半導体装置 |
-
2004
- 2004-06-14 JP JP2004176019A patent/JP4415767B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-05 US US10/591,009 patent/US7535040B2/en not_active Expired - Fee Related
- 2005-04-05 WO PCT/JP2005/006674 patent/WO2005122274A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05152574A (ja) * | 1991-11-29 | 1993-06-18 | Fuji Electric Co Ltd | 半導体装置 |
JP2000004017A (ja) * | 1998-04-24 | 2000-01-07 | Sanken Electric Co Ltd | 絶縁ゲ−ト形バイポ−ラトランジスタ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105304694A (zh) * | 2014-07-11 | 2016-02-03 | 新唐科技股份有限公司 | 绝缘栅双极晶体管及其制造方法 |
CN105304694B (zh) * | 2014-07-11 | 2018-09-07 | 新唐科技股份有限公司 | 绝缘栅双极晶体管及其制造方法 |
Also Published As
Publication number | Publication date |
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JP2005354008A (ja) | 2005-12-22 |
JP4415767B2 (ja) | 2010-02-17 |
US20080093623A1 (en) | 2008-04-24 |
US7535040B2 (en) | 2009-05-19 |
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