JP2009530826A - 改良されたチップスケールパッケージ - Google Patents
改良されたチップスケールパッケージ Download PDFInfo
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- JP2009530826A JP2009530826A JP2009500503A JP2009500503A JP2009530826A JP 2009530826 A JP2009530826 A JP 2009530826A JP 2009500503 A JP2009500503 A JP 2009500503A JP 2009500503 A JP2009500503 A JP 2009500503A JP 2009530826 A JP2009530826 A JP 2009530826A
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- package
- passivation
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- power electrode
- solder
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- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 238000002161 passivation Methods 0.000 claims description 74
- 229910000679 solder Inorganic materials 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 229910006913 SnSb Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims 6
- 230000004907 flux Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 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
- 239000002356 single layer Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
Description
本願は、2006年3月17日付米国特許出願番号第11/378,607号に基づき、かつその優先権を主張し、その内容をここに引用によって援用する。
本発明は、パワー半導体パッケージに関する。
本発明の一実施形態に係るパッケージは、はんだ体が予め上に印刷されたダイを含む。予め印刷されたはんだ体は、ダイ上のパッシベーション体と支持体5(たとえば回路板)との間のスタンドオフを見込む。スタンドオフによって、ダイ上のパッシベーション体と支持体との間のガス抜きと揮発性フラックス成分の除去とを補助する隙間が見込まれる。本発明の譲受人に譲渡された米国特許出願番号第2005/0121784号は、ダイを有し、はんだマトリックスによって相互に接着された伝導性粒子を含有するペーストによって配線が形成されたパッケージを開示している。配線は所望の隙間をもたらすことができるが、高価である。本発明に係るパッケージにおいてはんだペーストのみを使用する利点は、必要な隙間を低コストで得ることができる点である。
図9を参照し、同じ符号は同じ特徴を識別し、本発明に係る改良されたパッケージにおいて、ソース電極20およびゲート電極22がはんだ体40によって予めはんだ付けされている。パッケージを予めはんだ付けすることによって、パッケージが実装されたときにダイ14のパッシベーション体30と回路板のパッドとの間において適切かつ良好に制御されたスタンドオフを確保する。ダイ14表面上に電極20および22を予めはんだ付けすることによって、リフロー処理中のはんだ濡れも向上し、かつリフロー処理開口部も増大する。はんだ体40を形成するのに好ましいはんだは、SnAgCuまたはSnSbなどの無鉛はんだである。はんだ体40はパッシベーション体30を越えて延在し得、いずれかの望ましい厚さ、たとえば120μmまたは175μmであり得る。
むウェハが洗浄され、残留フラックスを除去する。洗浄剤は水溶性または溶剤性であり得る。
Claims (36)
- ウェブ部分を有する伝導性クリップと、
前記ウェブ部分に電気的かつ機械的に接続された第1のパワー電極および前記第1のパワー電極の反対側の第2のパワー電極を有する半導体ダイと、
少なくとも前記第2のパワー電極上に形成されたパッシベーション体と、
前記第2のパワー電極上にあり、かつ前記パッシベーション体を越えて延在するはんだ体とを備える、半導体パッケージ。 - 前記はんだ体は無鉛はんだからなる、請求項1に記載のパッケージ。
- 前記はんだ体はSnAgCuからなる、請求項1に記載のパッケージ。
- 前記はんだ体はSnSbからなる、請求項1に記載のパッケージ。
- 前記クリップは、前記ダイから間隔を置いて配置され、かつ前記ダイを取囲む壁を含み、前記壁はフランジ部分を有し、前記パッシベーション体は、前記ダイと前記壁との間の前記間隔内に存在し、かつ前記フランジ部分を完全に覆う、請求項1に記載のパッケージ。
- 前記パッシベーション体は、第1のパッシベーション材料からなる第1のパッシベーション層と、第2のパッシベーション材料からなる第2のパッシベーション層とを含む、請求項1に記載のパッケージ。
- 前記第1のパッシベーション材料はカーボンベースのポリマーであり、前記第2のパッシベーション材料はシリコンベースのポリマーである、請求項6に記載のパッケージ。
- 前記第1のパッシベーション材料はカーボンベースのエポキシであり、前記第2のパッシベーション材料はシリコンベースのエポキシである、請求項6に記載のパッケージ。
- 前記クリップは、前記ダイから間隔を置いて配置され、かつ前記ダイを取囲む壁を含み、前記壁はフランジ部分を有し、前記パッシベーション体は前記ダイと前記壁との間の前記間隔内に存在し、かつ前記フランジ部分を完全に覆う、請求項6に記載のパッケージ。
- 前記伝導性クリップは、各々が複数のバンプを有する2本の対向するレール部分を含む、請求項1に記載のパッケージ。
- 前記ダイは、前記第2のパワー電極に隣接した制御電極をさらに含む、請求項1に記載のパッケージ。
- 前記ダイはパワーMOSFETである、請求項1に記載のパッケージ。
- ウェブ部分を有する伝導性クリップと、
前記ウェブ部分に電気的かつ機械的に接続された第1のパワー電極および前記第1のパワー電極と反対側の第2のパワー電極を有する半導体ダイと、
少なくとも前記第2のパワー電極上に形成されたパッシベーション体とを備え、前記パッシベーション体は、前記第2のパワー電極を露出させる開口部を含み、第1のパッシベーション材料からなる第1のパッシベーション層と、第2のパッシベーション材料からなる第2のパッシベーション層とを有する、半導体パッケージ。 - 前記第1のパッシベーション材料はカーボンベースのポリマーであり、前記第2のパッシベーション材料はシリコンベースのポリマーである、請求項13に記載のパッケージ。
- 前記第1のパッシベーション材料はカーボンベースのエポキシであり、前記第2のパッシベーション材料はシリコンベースのエポキシである、請求項13に記載のパッケージ。
- 前記クリップは、前記ダイから間隔を置いて配置され、かつ前記ダイを取囲む壁を含み、前記壁はフランジ部分を有し、前記パッシベーション体は、前記ダイと前記壁との間の前記間隔内に存在し、かつ前記フランジ部分を完全に覆う、請求項13に記載のパッケージ。
- 前記伝導性クリップは、各々が複数のバンプを有する2本の対向するレール部分を含む、請求項13記載のパッケージ。
- 前記ダイは、前記第2のパワー電極に隣接した制御電極をさらに含む、請求項13に記載のパッケージ。
- 前記ダイはパワーMOSFETである、請求項13に記載のパッケージ。
- 前記第2のパワー電極上にあり、かつ前記パッシベーション体を越えて延在するはんだ体をさらに備える、請求項13に記載のパッケージ。
- 前記はんだ体は無鉛はんだからなる、請求項20に記載のパッケージ。
- 前記はんだ体はSnAgCuからなる、請求項20に記載のパッケージ。
- 前記はんだ体はSnSbからなる、請求項20に記載のパッケージ。
- 前記クリップは、前記ダイから間隔を置いて配置され、かつ前記ダイを取囲む壁を含み、前記壁はフランジ部分を有し、前記パッシベーション体は、前記ダイと前記壁との間の前記間隔内に存在し、かつ前記フランジ部分を完全に覆う、請求項13に記載のパッケージ。
- ウェブ部分と、各々が複数のバンプを有する2本の対向するレール部分とを含む伝導性クリップと、
前記ウェブ部分に電気的かつ機械的に接続された第1のパワー電極および前記第1のパワー電極と反対側の第2のパワー電極を有する半導体ダイと、
少なくとも前記第2のパワー電極上に形成されたパッシベーション体とを備え、
前記第2のパワー電極は、伝導性接着剤によって支持体上の伝導性パッドに接続されるように構成され、前記バンプは、前記パッシベーション体を前記支持体から間隔を置いて配置させて、前記パッシベーション体と前記支持体との間に隙間を設けるように構成される、半導体パッケージ。 - 前記隙間は175μmまでである、請求項25に記載のパッケージ。
- 前記第2のパワー電極上にあり、かつ前記パッシベーション体を越えて延在するはんだ体をさらに備える、請求項25に記載のパッケージ。
- 前記はんだ体は無鉛はんだからなる、請求項27に記載のパッケージ。
- 前記はんだ体はSnAgCuからなる、請求項28に記載のパッケージ。
- 前記はんだ体はSnSbからなる、請求項28に記載のパッケージ。
- 前記クリップは、前記ダイから間隔を置いて配置され、かつ前記ダイを取囲む壁を含み、前記壁はフランジ部分を有し、前記パッシベーション体は、前記ダイと前記壁との間の前記間隔内に存在し、かつ前記フランジ部分を完全に覆う、請求項25に記載のパッケージ。
- 前記第1のパッシベーション体は、第1のパッシベーション材料からなる第1のパッシベーション層と、第2のパッシベーション材料からなる第2のパッシベーション層とを含む、請求項25に記載のパッケージ。
- 前記第1のパッシベーション材料はカーボンベースのポリマーであり、前記第2のパッシベーション材料はシリコンベースのポリマーである、請求項32に記載のパッケージ。
- 前記第1のパッシベーション材料はカーボンベースのエポキシであり、前記第2のパッシベーション材料はシリコンベースのエポキシである、請求項32に記載のパッケージ。
- 前記ダイは、前記第2のパワー電極に隣接した制御電極をさらに含む、請求項25に記載のパッケージ。
- 前記ダイはパワーMOSFETである、請求項25に記載のパッケージ。
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US11/378,607 | 2006-03-17 | ||
US11/378,607 US20070215997A1 (en) | 2006-03-17 | 2006-03-17 | Chip-scale package |
PCT/US2007/006633 WO2007109133A2 (en) | 2006-03-17 | 2007-03-16 | Improved chip-scale package |
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US (1) | US20070215997A1 (ja) |
EP (1) | EP2008304A4 (ja) |
JP (1) | JP4977753B2 (ja) |
TW (1) | TWI341013B (ja) |
WO (1) | WO2007109133A2 (ja) |
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WO2017002368A1 (ja) * | 2015-07-01 | 2017-01-05 | パナソニックIpマネジメント株式会社 | 半導体装置 |
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WO2017002368A1 (ja) * | 2015-07-01 | 2017-01-05 | パナソニックIpマネジメント株式会社 | 半導体装置 |
JPWO2017002368A1 (ja) * | 2015-07-01 | 2018-04-19 | パナソニックIpマネジメント株式会社 | 半導体装置 |
US10636906B2 (en) | 2015-07-01 | 2020-04-28 | Panasonic Intellectual Property Management Co., Ltd. | Semiconductor device including first and second metal oxide semiconductor transistors |
CN111640742A (zh) * | 2015-07-01 | 2020-09-08 | 松下半导体解决方案株式会社 | 半导体装置 |
CN111640742B (zh) * | 2015-07-01 | 2021-04-20 | 新唐科技日本株式会社 | 半导体装置 |
Also Published As
Publication number | Publication date |
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US20070215997A1 (en) | 2007-09-20 |
WO2007109133A2 (en) | 2007-09-27 |
EP2008304A2 (en) | 2008-12-31 |
WO2007109133B1 (en) | 2008-07-31 |
TWI341013B (en) | 2011-04-21 |
TW200741990A (en) | 2007-11-01 |
JP4977753B2 (ja) | 2012-07-18 |
WO2007109133A3 (en) | 2008-04-03 |
EP2008304A4 (en) | 2011-03-23 |
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