JP4208863B2 - 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
- Publication number
- JP4208863B2 JP4208863B2 JP2005190859A JP2005190859A JP4208863B2 JP 4208863 B2 JP4208863 B2 JP 4208863B2 JP 2005190859 A JP2005190859 A JP 2005190859A JP 2005190859 A JP2005190859 A JP 2005190859A JP 4208863 B2 JP4208863 B2 JP 4208863B2
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- Prior art keywords
- solder
- semiconductor device
- metal
- carbon
- semiconductor element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004065 semiconductor Substances 0.000 title claims description 165
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 229910000679 solder Inorganic materials 0.000 claims description 219
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 160
- 229910052799 carbon Inorganic materials 0.000 claims description 157
- 239000002184 metal Substances 0.000 claims description 100
- 229910052751 metal Inorganic materials 0.000 claims description 100
- 239000003575 carbonaceous material Substances 0.000 claims description 45
- 230000017525 heat dissipation Effects 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 25
- 239000000758 substrate Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000010949 copper Substances 0.000 description 10
- 239000010931 gold Substances 0.000 description 10
- 238000005304 joining Methods 0.000 description 10
- 230000035882 stress Effects 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 9
- 229910052737 gold Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QCEUXSAXTBNJGO-UHFFFAOYSA-N [Ag].[Sn] Chemical compound [Ag].[Sn] QCEUXSAXTBNJGO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 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
- 239000000872 buffer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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Description
例えば、半導体素子と放熱部材を半田等の金属層で接合する場合には、シリコン(Si)等の半導体材料が主体の半導体素子と金属層との間の熱膨張係数差が比較的大きいため、発熱時の応力集中によって金属層に欠陥が生じたり、半導体素子が破壊されたりして、放熱性や性能の面で高い信頼性を確保するのが難しい。よりサイズの大きな半導体素子を用いた場合や、放熱部材と金属層との間の熱膨張係数の差が比較的大きい場合も同様、やはり高い信頼性の確保は難しくなる。
また、本発明は、そのような半導体装置の製造方法を提供することを目的とする。
図1は第1の実施の形態の半導体装置の要部断面模式図である。
第1の実施の形態の半導体装置1は、電気回路基板2に半田バンプ3を介して半導体素子4がフリップチップ実装された構造を有している。電気回路基板2と半導体素子4の間には、それらの接続強度を高めるため、アンダーフィル材5が充填されている。半導体素子4には、電気回路基板2への実装面と反対の面側に、所定量の半田を含有させた炭素焼結体等の多孔性の炭素材料を用いて構成された半田含有炭素部材6が接合されている。さらに、この半田含有炭素部材6の半導体素子4と反対の面側には、箱型の蓋7が接合されている。この蓋7は、半導体素子4を外部からの衝撃や汚染から保護する役割を果たすほか、半導体素子4の動作時に発生する熱を半導体装置1の外部に放熱する放熱部材としての役割を果たす。ここでは、この蓋7は、半田含有炭素部材6に接合されると共に、その開口端を電気回路基板2に樹脂8を用いて接合されている。また、電気回路基板2には、他の電気回路基板への実装に用いられる半田ボール9が取り付けられている。
このように、第1の実施の形態の半導体装置1では、半導体素子4と蓋7を、半田含有炭素焼結体6aと外側半田層6b,6cを備える半田含有炭素部材6を介して、接合する。半田含有炭素部材6と半導体素子4および蓋7との直接の接合には、半田含有炭素焼結体6aの外側に形成した外側半田層6b,6cが用いられる。
半田含有炭素部材6は、上記のように、炭素焼結体に半田を含有させ、その表面にさらに半田層を形成した構造を有している。
図2は半田含有炭素部材の形成フローの一例を示す図である。
ここではまず、上記図2に示した形成フローと同じく、炭素焼結体の乾燥(ステップS10)、真空引き(ステップS11)、溶融半田への炭素焼結体の浸漬(ステップS12)、および溶融半田の冷却(ステップS13)を行う。そして、半田が含浸された炭素焼結体の表面に付着している半田を除去し(ステップS14)、半田含有炭素焼結体6aを得る。
次に、半田含有炭素部材6を用いた半導体装置1の形成方法について述べる。
半導体装置1を形成する際には、まず、半導体素子4を電気回路基板2に半田バンプ3を介してフリップチップ実装し、半導体素子4と電気回路基板2とを接続する(ステップS20)。さらに、半導体素子4と電気回路基板2との間にはアンダーフィル材5を充填する(ステップS21)。
なお、ここでは蓋7の開口端と電気回路基板2とを樹脂8を用いて接合する場合について述べたが、この部分の接合は必ずしも行うことを要せず、その場合は上記のステップS24を省略すればよい。
図5に示す半導体装置100は、半導体素子4と蓋7がSn/37Pbの半田層101またはAgペースト層102によって接合されている点を除き、上記図1に示した半導体装置1と同じ構成を有している。
図6は第2の実施の形態の半導体装置の要部断面模式図である。ただし、図6では、図1に示した要素と同一の要素については同一の符号を付し、その説明の詳細は省略する。
(付記1) 半導体素子で発生する熱を放熱する放熱部材を備えた半導体装置において、
前記半導体素子と前記放熱部材とが、金属を含有させた炭素材料を用いた金属含有炭素部材を介して、接合されていることを特徴とする半導体装置。
(付記3) 前記半田は、Snを主成分とすることを特徴とする付記2記載の半導体装置。
(付記5) 前記金属含有炭素部材は、前記金属が含有された前記炭素材料の表面に金属層が形成されていることを特徴とする付記1記載の半導体装置。
(付記7) 前記半導体素子および前記放熱部材は、前記金属層を介して前記金属含有炭素部材に接合されていることを特徴とする付記5記載の半導体装置。
(付記9) 前記金属層は、前記炭素材料に含有される前記金属とは異なる金属で構成されていることを特徴とする付記5記載の半導体装置。
(付記11) 前記半導体素子は、電気回路基板にフリップチップ実装されていることを特徴とする付記1記載の半導体装置。
(付記13) 半導体素子で発生する熱を放熱する放熱部材を備えた半導体装置の製造方法において、
金属を含有させた炭素材料を用いた金属含有炭素部材を形成する工程と、
前記金属含有炭素部材を基板に実装された半導体素子上に配置する工程と、
前記半導体素子上に配置された前記金属含有炭素部材上に前記放熱部材を配置する工程と、
前記半導体素子と前記放熱部材とを前記金属含有炭素部材を介して接合する工程と、
を有することを特徴とする半導体装置の製造方法。
前記炭素材料に前記金属を含浸させることによって、前記金属を含有させた前記炭素材料を形成し、前記金属を含有させた前記炭素材料を用いて前記金属含有炭素部材を形成することを特徴とする付記13記載の半導体装置の製造方法。
(付記16) 前記金属を含有させた前記炭素材料を用いた前記金属含有炭素部材を形成する工程においては、
前記金属を含有させた前記炭素材料の表面に金属層を形成して前記金属含有炭素部材を形成することを特徴とする付記13記載の半導体装置の製造方法。
(付記18) 前記炭素材料の表面に前記金属層を形成する際には、
前記金属層を、前記金属を含有させた前記炭素材料を形成する際に形成することを特徴とする付記16記載の半導体装置の製造方法。
前記金属層を、前記金属を含有させた前記炭素材料を形成した後に形成することを特徴とする付記16記載の半導体装置の製造方法。
金属を含有させた炭素材料の表面に金属層が形成された構造を有することを特徴とする接合部材。
炭素材料に金属を含有させ、前記金属が含有された前記炭素材料の表面に金属層を形成することを特徴とする接合部材の製造方法。
2 電気回路基板
3 半田バンプ
4 半導体素子
5 アンダーフィル材
6 半田含有炭素部材
6a 半田含有炭素焼結体
6b,6c 外側半田層
7,7a 蓋
8 樹脂
9 半田ボール
101 半田層
102 Agペースト層
Claims (5)
- 半導体素子で発生する熱を放熱する放熱部材を備えた半導体装置において、
前記半導体素子と前記放熱部材とが、Snを主成分とする半田を含有させた炭素材料の表面に前記半田と同じ組成の半田層が形成された金属含有炭素部材を介して、接合されていることを特徴とする半導体装置。 - 半導体素子で発生する熱を放熱する放熱部材を備えた半導体装置の製造方法において、
Snを主成分とする半田を含有させた炭素材料の表面に前記半田と同じ組成の半田層が形成された金属含有炭素部材を形成する工程と、
前記金属含有炭素部材を基板に実装された半導体素子上に配置する工程と、
前記半導体素子上に配置された前記金属含有炭素部材上に前記放熱部材を配置する工程と、
前記半導体素子と前記放熱部材とを前記金属含有炭素部材を介して接合する工程と、
を有することを特徴とする半導体装置の製造方法。 - 前記半田を含有させた前記炭素材料の表面に前記半田層が形成された前記金属含有炭素部材を形成する工程においては、
前記炭素材料に前記半田を含浸させることによって、前記半田を含有させた前記炭素材料を形成し、前記半田を含有させた前記炭素材料を用いて前記金属含有炭素部材を形成す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。 - 前記炭素材料の表面に前記半田層を形成する際には、
前記半田層を、前記半田を含有させた前記炭素材料を形成する際に形成す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。 - 前記炭素材料の表面に前記半田層を形成する際には、
前記半田層を、前記半田を含有させた前記炭素材料を形成した後に形成す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。
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JP2005190859A JP4208863B2 (ja) | 2005-06-30 | 2005-06-30 | 半導体装置およびその製造方法 |
TW094146177A TWI306635B (en) | 2005-06-30 | 2005-12-23 | Semiconductor device and manufacturing method thereof |
US11/320,737 US20070004091A1 (en) | 2005-06-30 | 2005-12-30 | Semiconductor device and manufacturing method thereof |
KR1020060004045A KR100783458B1 (ko) | 2005-06-30 | 2006-01-13 | 반도체 장치 및 그 제조 방법 |
CNB2006100054859A CN100433314C (zh) | 2005-06-30 | 2006-01-16 | 半导体器件及其制造方法 |
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US7180174B2 (en) * | 2003-12-30 | 2007-02-20 | Intel Corporation | Nanotube modified solder thermal intermediate structure, systems, and methods |
JP4992461B2 (ja) * | 2007-02-21 | 2012-08-08 | 富士通株式会社 | 電子回路装置及び電子回路装置モジュール |
KR101422249B1 (ko) * | 2007-03-09 | 2014-08-13 | 삼성전자주식회사 | 소자 방열 장치 |
US9418831B2 (en) * | 2007-07-30 | 2016-08-16 | Planar Semiconductor, Inc. | Method for precision cleaning and drying flat objects |
JP5431793B2 (ja) * | 2009-05-29 | 2014-03-05 | 新光電気工業株式会社 | 放熱部品、電子部品装置及び電子部品装置の製造方法 |
DE102014014473C5 (de) * | 2014-09-27 | 2022-10-27 | Audi Ag | Verfahren zum Herstellen einer Halbleiteranordnung sowie entsprechende Halbleiteranordnung |
JP6524461B2 (ja) * | 2014-10-11 | 2019-06-05 | 国立大学法人京都大学 | 放熱構造体 |
JP7108907B2 (ja) * | 2017-11-29 | 2022-07-29 | パナソニックIpマネジメント株式会社 | 接合材、該接合材を用いた半導体装置の製造方法、及び、半導体装置 |
US11476399B2 (en) | 2017-11-29 | 2022-10-18 | Panasonic Intellectual Property Management Co., Ltd. | Jointing material, fabrication method for semiconductor device using the jointing material, and semiconductor device |
JP2020077808A (ja) * | 2018-11-09 | 2020-05-21 | 株式会社デンソー | 半導体部品の放熱構造 |
CN210325761U (zh) * | 2018-12-29 | 2020-04-14 | 华为技术有限公司 | 一种芯片装置及电子设备 |
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JPH10107190A (ja) | 1996-10-01 | 1998-04-24 | Tonen Corp | 半導体パッケージ |
JP2001510944A (ja) * | 1997-07-21 | 2001-08-07 | アギラ テクノロジーズ インコーポレイテッド | 半導体フリップチップ・パッケージおよびその製造方法 |
JP2001210761A (ja) * | 2000-01-24 | 2001-08-03 | Shinko Electric Ind Co Ltd | 半導体装置及びその製造方法 |
WO2002067324A1 (fr) * | 2001-02-22 | 2002-08-29 | Ngk Insulators, Ltd. | Element pour circuit electronique, procede de fabrication d'un tel element et portion electronique |
JP2003155575A (ja) * | 2001-11-16 | 2003-05-30 | Ngk Insulators Ltd | 複合材料及びその製造方法 |
US7316061B2 (en) * | 2003-02-03 | 2008-01-08 | Intel Corporation | Packaging of integrated circuits with carbon nano-tube arrays to enhance heat dissipation through a thermal interface |
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US7282265B2 (en) * | 2003-05-16 | 2007-10-16 | Hitachi Metals, Ltd. | Composite material having high thermal conductivity and low thermal expansion coefficient, and heat-dissipating substrate, and their production methods |
US7527090B2 (en) * | 2003-06-30 | 2009-05-05 | Intel Corporation | Heat dissipating device with preselected designed interface for thermal interface materials |
US20050016714A1 (en) * | 2003-07-09 | 2005-01-27 | Chung Deborah D.L. | Thermal paste for improving thermal contacts |
US7253523B2 (en) * | 2003-07-29 | 2007-08-07 | Intel Corporation | Reworkable thermal interface material |
US7180174B2 (en) * | 2003-12-30 | 2007-02-20 | Intel Corporation | Nanotube modified solder thermal intermediate structure, systems, and methods |
JP2005194393A (ja) * | 2004-01-07 | 2005-07-21 | Hitachi Chem Co Ltd | 回路接続用接着フィルム及び回路接続構造体 |
CN100377340C (zh) * | 2004-08-11 | 2008-03-26 | 鸿富锦精密工业(深圳)有限公司 | 散热模组及其制备方法 |
JP3905100B2 (ja) * | 2004-08-13 | 2007-04-18 | 株式会社東芝 | 半導体装置とその製造方法 |
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2005
- 2005-06-30 JP JP2005190859A patent/JP4208863B2/ja not_active Expired - Fee Related
- 2005-12-23 TW TW094146177A patent/TWI306635B/zh not_active IP Right Cessation
- 2005-12-30 US US11/320,737 patent/US20070004091A1/en not_active Abandoned
-
2006
- 2006-01-13 KR KR1020060004045A patent/KR100783458B1/ko not_active IP Right Cessation
- 2006-01-16 CN CNB2006100054859A patent/CN100433314C/zh not_active Expired - Fee Related
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CN1893038A (zh) | 2007-01-10 |
KR100783458B1 (ko) | 2007-12-07 |
KR20070003526A (ko) | 2007-01-05 |
TWI306635B (en) | 2009-02-21 |
US20070004091A1 (en) | 2007-01-04 |
CN100433314C (zh) | 2008-11-12 |
TW200701374A (en) | 2007-01-01 |
JP2007012830A (ja) | 2007-01-18 |
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