JP2012160539A - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP2012160539A JP2012160539A JP2011018423A JP2011018423A JP2012160539A JP 2012160539 A JP2012160539 A JP 2012160539A JP 2011018423 A JP2011018423 A JP 2011018423A JP 2011018423 A JP2011018423 A JP 2011018423A JP 2012160539 A JP2012160539 A JP 2012160539A
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- semiconductor device
- copper alloy
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 66
- 229920005989 resin Polymers 0.000 claims abstract description 66
- 239000011347 resin Substances 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims description 69
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 51
- 230000003449 preventive effect Effects 0.000 claims description 42
- 239000010949 copper Substances 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 230000002378 acidificating effect Effects 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 29
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 20
- 239000012964 benzotriazole Substances 0.000 description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 5
- 235000019253 formic acid Nutrition 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
【解決手段】銅合金製の金属部材1に半導体素子4を搭載した実装体を封止樹脂6によって封止して形成した半導体装置7であって、酸性かつ還元性を有するガス雰囲気中にて180℃以上の温度で前記実装体を5分間以上加熱することによって、金属部材1と封止樹脂6との界面に、膜厚が100nm以下で、かつ、酸素および銅の成分濃度が50at%以上の酸化膜が介在し、金属部材1を防錆するための防錆皮膜が介在しない。
【選択図】図2
Description
図1は、本発明の実施の形態1におけるパワー半導体装置の断面概略図である。図1に示すように、パワー半導体装置7は、ヒートスプレッダ1、リードフレーム2a,2b、接合材3a,3b、パワー半導体素子4、ボンディングワイヤ5、封止樹脂6などによって構成されている。ヒートスプレッダ1、リードフレーム2a,2bは、金属部材である銅合金で形成されている。
図6は、本発明の実施の形態1におけるパワー半導体装置の製造工程を示すフロー図である。銅合金であるリードフレームを加熱した直後に、酸素を含有するドライガスに実装体を暴露する工程を含む点が実施の形態1と異なる。図6に示すように、酸性・還元性ガス雰囲気中でヒートスプレッダ1およびパワー半導体素子4とリードフレーム2bとを加熱し、接合材3bを介して接合する工程の直後に、酸素を含み水分量500ppm以下の酸素ガス(ドライガス)に暴露する工程が追加されている。
Claims (4)
- 銅合金製の金属部材に半導体素子を搭載した実装体を封止樹脂によって封止して形成した半導体装置であって、
前記金属部材と前記封止樹脂との界面に、膜厚が100nm以下で、かつ、酸素および銅の成分濃度が50at%以上の酸化膜が介在し、前記金属部材を防錆するための防錆皮膜が介在しないことを特徴とする半導体装置。 - 銅合金製の金属部材に半導体素子を搭載した実装体を封止樹脂によって封止して形成した半導体装置の製造方法であって、
前記実装体を前記封止樹脂によって封止する封止工程と、
前記封止工程の前に、酸性かつ還元性を有するガス雰囲気中にて180℃以上の温度で前記実装体を5分間以上加熱する加熱工程とを備えることを特徴とする半導体装置の製造方法。 - 前記封止工程の前に、前記加熱工程に続いて水分濃度が500ppm以下の酸素含有ガス雰囲気中に前記実装体を暴露する工程を備えることを特徴とする請求項2記載の半導体装置の製造方法。
- 前記加熱工程によって、前記金属部材の表面に形成される防錆皮膜の膜厚がほぼゼロになることを特徴とする請求項2または請求項3に記載の半導体装置。
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JP2011018423A JP5545234B2 (ja) | 2011-01-31 | 2011-01-31 | 半導体装置およびその製造方法 |
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JP5545234B2 JP5545234B2 (ja) | 2014-07-09 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US10153246B2 (en) | 2016-01-15 | 2018-12-11 | Fuji Electric Co., Ltd. | Method for producing member for semiconductor device and semiconductor device, and member for semiconductor device |
Families Citing this family (1)
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JP6162986B2 (ja) * | 2013-03-18 | 2017-07-12 | Dowaメタルテック株式会社 | 金属−セラミックス回路基板の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03116843A (ja) * | 1989-09-29 | 1991-05-17 | Hitachi Ltd | ペレットボンディング装置 |
JPH10251777A (ja) * | 1997-03-10 | 1998-09-22 | Kobe Steel Ltd | 酸化被膜密着性に優れるリードフレーム用銅合金材 |
JP2002252236A (ja) * | 2001-12-25 | 2002-09-06 | Toshiba Corp | 半導体装置の製造方法 |
JP2002270609A (ja) * | 2001-03-09 | 2002-09-20 | Fujitsu Ltd | 半導体装置の製造方法及び半導体装置の製造装置 |
JP2003197847A (ja) * | 2001-12-25 | 2003-07-11 | Toshiba Corp | 半導体装置およびその製造方法 |
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2011
- 2011-01-31 JP JP2011018423A patent/JP5545234B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03116843A (ja) * | 1989-09-29 | 1991-05-17 | Hitachi Ltd | ペレットボンディング装置 |
JPH10251777A (ja) * | 1997-03-10 | 1998-09-22 | Kobe Steel Ltd | 酸化被膜密着性に優れるリードフレーム用銅合金材 |
JP2002270609A (ja) * | 2001-03-09 | 2002-09-20 | Fujitsu Ltd | 半導体装置の製造方法及び半導体装置の製造装置 |
JP2002252236A (ja) * | 2001-12-25 | 2002-09-06 | Toshiba Corp | 半導体装置の製造方法 |
JP2003197847A (ja) * | 2001-12-25 | 2003-07-11 | Toshiba Corp | 半導体装置およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10153246B2 (en) | 2016-01-15 | 2018-12-11 | Fuji Electric Co., Ltd. | Method for producing member for semiconductor device and semiconductor device, and member for semiconductor device |
US11107787B2 (en) | 2016-01-15 | 2021-08-31 | Fuji Electric Co., Ltd. | Member for semiconductor device |
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