JP2011040749A - 回路チップ・パッケージングのための方法及びパッケージ - Google Patents
回路チップ・パッケージングのための方法及びパッケージ Download PDFInfo
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Abstract
【解決手段】 回路チップ・パッケージは、第1の熱膨張係数(CTE)を有する基板と、第2のCTEを有し、基板の上に装着される回路チップと、回路チップの上に配置され、それをもって熱接触する金属箔と、(i)第1のCTEとは異なる第3のCTE及び(ii)底縁部領域を有し、金属箔の上に配置され、それをもって熱接触する金属蓋と、金属蓋の底縁部に沿った接着剤層であって、第1の温度で硬化し、蓋を基板に接合し、組立体を生成し、前記組立体が第2の温度にて変形して屈曲した回路チップ・パッケージとなる、接着剤層とを含む。
【選択図】 図1
Description
Claims (24)
- 屈曲した回路チップ・パッケージの組立方法であって、
第1の熱膨張係数(CTE)を有する基板を準備すること、
前記基板の上に第2のCTEを有する回路チップを装着すること、
前記回路チップの上に金属箔を配置し、それをもって熱接触を確立すること、
底縁部領域及び前記第1のCTEとは異なる第3のCTEを有する金属蓋の上に、前記金属蓋の前記底縁部に沿って接着剤を塗工すること、
前記接着剤をその上に有する底縁部領域が前記基板と接して組立体を形成するように前記金属蓋を前記金属箔の上に配置し、それをもって熱接触を確立すること、
前記組立体を、第1の温度にて、前記接着剤を硬化させて前記蓋を前記基板に接合させるのに十分な並びに圧力及び時間で圧縮すること、
前記組立体の温度を前記組立体の屈曲を生じさせる第2の温度まで変化させ、それにより前記熱接触の熱抵抗を低下させ、かつ前記屈曲した回路チップ・パッケージを生成すること
を含む方法。 - 前記熱接触の前記熱抵抗を低下させることが、前記回路チップ・パッケージの熱抵抗を低下させる、請求項1に記載の方法。
- 前記第1の温度が前記第2の温度より高い場合に、前記第1のCTEが前記第3のCTEより大きい、請求項1に記載の方法。
- 前記第1の温度が前記第2の温度より低い場合に、前記第1のCTEが前記第3のCTEより小さい、請求項1に記載の方法。
- 前記金属箔と熱接触する蓋表面をパターン形成することをさらに含む、請求項1に記載の方法。
- 前記金属箔が、インジウム、鉛(Pb)、金、銀、ビスマス、アンチモン、錫、タリウム、ガリウム、及びそれらの合金から成る群から選択される金属を有する、請求項1に記載の方法。
- 前記合金が、インジウム−錫、インジウム−銀、及び鉛−錫(Pb−Sn)から成る群から選択される、請求項6に記載の方法。
- 前記金属箔と熱接触する回路チップ表面を、金、銅、ニッケル、クロム、Cr−Cu、Ni−V、チタン、及びアルミニウムから成る群から選択される金属で被覆することをさらに含む、請求項1に記載の方法。
- 前記金属箔と熱接触する蓋表面を、金、ニッケル、錫、クロム、チタン、及び銅から成る群から選択される金属で被覆することをさらに含む、請求項1に記載の方法。
- 前記金属箔をパターン形成することをさらに含む、請求項1に記載の方法。
- 前記第1の温度が、前記接着剤の硬化温度である、請求項1に記載の方法。
- 前記第2の温度が、室温又は前記パッケージの動作温度である、請求項1に記載の方法。
- 屈曲構造を有する回路チップ・パッケージであって、
第1の熱膨張係数(CTE)を有する基板と、
第2のCTEを有し、前記基板の上に装着される回路チップと、
前記回路チップの上に配置され、それをもって熱接触する金属箔と、
(i)前記第1のCTEとは異なる第3のCTE及び(ii)底縁部領域を有する金属蓋であって、前記金属箔の上に配置され、それをもって熱接触する金属蓋と、
前記金属蓋の前記底縁部に沿った接着剤層であって、第1の温度で硬化し、前記蓋を前記基板に接合し、組立体を生成し、前記組立体が第2の温度にて変形して、屈曲した回路チップ・パッケージとなる、接着剤層と
を含む、回路チップ・パッケージ。 - 前記屈曲した組立体が、前記回路チップ・パッケージの熱抵抗を低下させる屈曲部を有する、請求項13に記載の回路チップ・パッケージ。
- 前記第1の温度が前記第2の温度より高い場合に、前記第1のCTEが前記第3のCTEより大きい、請求項13に記載の回路チップ・パッケージ。
- 前記第1の温度が前記第2の温度より低い場合に、前記第1のCTEが前記第3のCTEより小さい、請求項13に記載の回路チップ・パッケージ。
- 前記第1の温度が、前記接着剤の硬化温度である、請求項13に記載の回路チップ・パッケージ。
- 前記第2の温度が、室温又は前記パッケージの動作温度である、請求項13に記載の回路チップ・パッケージ。
- 前記金属箔と熱接触する蓋表面がパターン形成されている、請求項13に記載の回路チップ・パッケージ。
- 前記金属箔がパターン形成されている、請求項13に記載の回路チップ・パッケージ。
- 前記金属箔が、インジウム、鉛(Pb)、金、銀、ビスマス、アンチモン、錫、タリウム、ガリウム、及びそれらの合金から成る群から選択される金属を有する、請求項13に記載の回路チップ・パッケージ。
- 前記合金が、インジウム−錫、インジウム−銀、及び鉛−錫(Pb−Sn)から成る群から選択される、請求項13に記載の回路チップ・パッケージ。
- 前記金属箔と熱接触する回路チップ表面が、金、銅、ニッケル、クロム、チタン、及びアルミニウムから成る群から選択される金属の被膜を有する、請求項13に記載の回路チップ・パッケージ。
- 前記金属箔と熱接触する蓋表面が、金、ニッケル、錫、クロム、チタン、及び銅から成る群から選択される金属の被膜を有する、請求項13に記載の回路チップ・パッケージ。
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US12/540,481 US8053284B2 (en) | 2009-08-13 | 2009-08-13 | Method and package for circuit chip packaging |
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JP2011040749A true JP2011040749A (ja) | 2011-02-24 |
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JP2010179491A Pending JP2011040749A (ja) | 2009-08-13 | 2010-08-10 | 回路チップ・パッケージングのための方法及びパッケージ |
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US (2) | US8053284B2 (ja) |
JP (1) | JP2011040749A (ja) |
KR (1) | KR101154733B1 (ja) |
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JP2012045656A (ja) * | 2010-08-25 | 2012-03-08 | Toshiba Corp | 電気部品およびその製造方法 |
JP2015002351A (ja) * | 2013-06-14 | 2015-01-05 | レアード テクノロジーズ インコーポレイテッドLaird Technologies,Inc. | 熱継手をヒートスプレッダ又は蓋及び熱源間に形成するための方法 |
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US20150129189A1 (en) * | 2012-02-09 | 2015-05-14 | Nokia Solutions And Networks Oy | Method and Apparatus for Reducing the Mechanical Stress when Mounting Assemblies with Thermal Pads |
US20130299131A1 (en) * | 2012-05-14 | 2013-11-14 | Alexander Timashov | Adjustable heat dissipation assembly for magnetic devices |
KR102028985B1 (ko) * | 2013-03-27 | 2019-10-07 | 엘지디스플레이 주식회사 | 유기 발광 다이오드 표시 장치 및 이의 제조 방법 |
US9331000B2 (en) | 2014-04-02 | 2016-05-03 | Kyocera America, Inc. | Heat management in electronics packaging |
EP2955749A1 (en) * | 2014-06-10 | 2015-12-16 | ABB Technology Oy | A method of heat transfer in power electronics applications |
KR102284652B1 (ko) | 2014-08-28 | 2021-08-02 | 삼성전자 주식회사 | 반도체 패키지 |
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JP6743916B2 (ja) * | 2017-02-13 | 2020-08-19 | 富士電機株式会社 | 半導体装置及び半導体装置の製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
US8053284B2 (en) | 2011-11-08 |
KR101154733B1 (ko) | 2012-06-08 |
US8455998B2 (en) | 2013-06-04 |
KR20110017341A (ko) | 2011-02-21 |
US20120018873A1 (en) | 2012-01-26 |
US20110037167A1 (en) | 2011-02-17 |
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