JP2014017417A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 91
- 229910000679 solder Inorganic materials 0.000 claims abstract description 97
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 57
- 239000000956 alloy Substances 0.000 claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000002844 melting Methods 0.000 claims abstract description 39
- 230000008018 melting Effects 0.000 claims abstract description 39
- 239000002131 composite material Substances 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000005304 joining Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 230000008646 thermal stress Effects 0.000 abstract description 11
- 230000002040 relaxant effect Effects 0.000 abstract description 5
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 2
- 239000000463 material Substances 0.000 description 9
- 238000007747 plating Methods 0.000 description 8
- 238000005476 soldering Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910020658 PbSn Inorganic materials 0.000 description 1
- 101150071746 Pbsn gene Proteins 0.000 description 1
- -1 SnAgCu Inorganic materials 0.000 description 1
- 229910008433 SnCU Inorganic materials 0.000 description 1
- 229910007116 SnPb Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
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- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29075—Plural core members
- H01L2224/2908—Plural core members being stacked
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29101—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of less than 400°C
- H01L2224/29111—Tin [Sn] as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29117—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
- H01L2224/29124—Aluminium [Al] as principal constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29139—Silver [Ag] as principal constituent
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29147—Copper [Cu] as principal constituent
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29155—Nickel [Ni] as principal constituent
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Abstract
【解決手段】リードフレーム10と半導体素子20との間にアルミニウムよりなるアルミ部材30が介在する。このアルミ部材30における第1の対向面31、第2の対向面32には、それぞれアルミニウム以外の金属よりなる金属層41、42が設けられ、さらに、第1の対向面31の金属層41とリードフレーム10との間には、当該金属層41を構成する金属とはんだ成分との合金よりなる第1の合金層51が介在し、第2の対向面32の金属層42と半導体素子20との間には、当該金属層42を構成する金属とはんだ成分との合金よりなる第2の合金層52が介在し、第1の合金層51、第2の合金層52は、それぞれ含有されるはんだ成分の融点よりも高い融点を持つ合金よりなる。
【選択図】図1
Description
アルミ部材におけるリードフレームに対向する第1の対向面(31)、および、半導体素子に対向する第2の対向面(32)には、それぞれアルミニウム以外の金属よりなる金属層(41、42)が設けられ、さらに、第1の対向面の金属層とリードフレームとの間には、当該金属層を構成する金属とはんだ成分との合金よりなる第1の合金層(51)が介在し、第2の対向面の金属層と半導体素子との間には、当該金属層を構成する金属とはんだ成分との合金よりなる第2の合金層(52)が介在しており、アルミ部材とリードフレーム、および、アルミ部材と半導体素子とは、それぞれ第1の合金層、第2の合金層を介して接合されており、第1の合金層、第2の合金層は、それぞれ含有されるはんだ成分の融点よりも高い融点を持つ合金よりなることを特徴とする。
本発明の第1実施形態にかかる半導体装置について、図1を参照して述べる。この半導体装置は、たとえば自動車に搭載されるECU(電子制御ユニット)等の構成要素として適用される。
本発明の第2実施形態にかかる半導体装置について、図3を参照して述べる。この半導体装置は、たとえば自動車に搭載されるECU(電子制御ユニット)等の構成要素として適用される。
なお、リードフレーム10の一面11上に複数個の半導体素子20をはんだ付けする構成においては、ある半導体素子20については上記第1実施形態を適用し、他の半導体素子20については上記第2実施形態を適用してもよい。
20 半導体素子
30 アルミ部材
31 アルミ部材の第1の対向面
32 アルミ部材の第2の対向面
41、42 金属層
51 第1の合金層
52 第2の合金層
Claims (4)
- リードフレーム(10)と、
前記リードフレーム上に搭載された半導体よりなる半導体素子(20)と、
前記リードフレームと前記半導体素子との間に介在するアルミニウムよりなるアルミ部材(30)と、を備え、
前記アルミ部材における前記リードフレームに対向する第1の対向面(31)、および、前記半導体素子に対向する第2の対向面(32)には、それぞれアルミニウム以外の金属よりなる金属層(41、42)が設けられ、
さらに、前記第1の対向面の前記金属層と前記リードフレームとの間には、当該金属層を構成する金属とはんだ成分との合金よりなる第1の合金層(51)が介在し、
前記第2の対向面の前記金属層と前記半導体素子との間には、当該金属層を構成する金属とはんだ成分との合金よりなる第2の合金層(52)が介在しており、
前記アルミ部材と前記リードフレーム、および、前記アルミ部材と前記半導体素子とは、それぞれ前記第1の合金層、前記第2の合金層を介して接合されており、
前記第1の合金層、前記第2の合金層は、それぞれ含有されるはんだ成分の融点よりも高い融点を持つ合金よりなることを特徴とする半導体装置。 - 前記金属層を構成する金属は、Cu、Ni、Agの中から選択されたものであり、
前記はんだ成分は、Snを含むPbフリーはんだであることを特徴とする請求項1に記載の半導体装置。 - リードフレーム(10)と、
前記リードフレーム上に搭載された半導体よりなる半導体素子(20)と、
前記リードフレームと前記半導体素子との間に介在し、当該両者を接合する第1のはんだ(70)と、を備え、
前記第1のはんだ中には、当該第1のはんだよりも低融点である第2のはんだ(81)を樹脂膜(82)で包含してなる複合部材(80)が分散して含有されていることを特徴とする半導体装置。 - 前記第1のはんだは、融点が260℃以上のものであり、前記第2のはんだは、融点が200℃以下のものであることを特徴とする請求項3に記載の半導体装置。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020241346A1 (ja) * | 2019-05-24 | 2020-12-03 | ローム株式会社 | 半導体装置 |
WO2022113617A1 (ja) * | 2020-11-27 | 2022-06-02 | ローム株式会社 | 半導体装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05299445A (ja) * | 1992-04-20 | 1993-11-12 | Nec Corp | 樹脂封止型半導体装置 |
JP2006032888A (ja) * | 2004-06-17 | 2006-02-02 | Renesas Technology Corp | 半導体装置および半導体装置の製造方法 |
JP2006179735A (ja) * | 2004-12-24 | 2006-07-06 | Renesas Technology Corp | 半導体装置およびその製造方法 |
JP2011129779A (ja) * | 2009-12-18 | 2011-06-30 | Shinko Electric Ind Co Ltd | 半導体装置及びその製造方法 |
-
2012
- 2012-07-10 JP JP2012154886A patent/JP2014017417A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05299445A (ja) * | 1992-04-20 | 1993-11-12 | Nec Corp | 樹脂封止型半導体装置 |
JP2006032888A (ja) * | 2004-06-17 | 2006-02-02 | Renesas Technology Corp | 半導体装置および半導体装置の製造方法 |
JP2006179735A (ja) * | 2004-12-24 | 2006-07-06 | Renesas Technology Corp | 半導体装置およびその製造方法 |
JP2011129779A (ja) * | 2009-12-18 | 2011-06-30 | Shinko Electric Ind Co Ltd | 半導体装置及びその製造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020241346A1 (ja) * | 2019-05-24 | 2020-12-03 | ローム株式会社 | 半導体装置 |
JPWO2020241346A1 (ja) * | 2019-05-24 | 2020-12-03 | ||
CN113874991A (zh) * | 2019-05-24 | 2021-12-31 | 罗姆股份有限公司 | 半导体装置 |
JP7443359B2 (ja) | 2019-05-24 | 2024-03-05 | ローム株式会社 | 半導体装置 |
WO2022113617A1 (ja) * | 2020-11-27 | 2022-06-02 | ローム株式会社 | 半導体装置 |
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