JP2014515189A - カスタマイズされた占有面積を有する極薄パワートランジスタ及び同期バックコンバータ - Google Patents
カスタマイズされた占有面積を有する極薄パワートランジスタ及び同期バックコンバータ Download PDFInfo
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- JP2014515189A JP2014515189A JP2014504075A JP2014504075A JP2014515189A JP 2014515189 A JP2014515189 A JP 2014515189A JP 2014504075 A JP2014504075 A JP 2014504075A JP 2014504075 A JP2014504075 A JP 2014504075A JP 2014515189 A JP2014515189 A JP 2014515189A
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Abstract
Description
Claims (17)
- 電界効果トランジスタパッケージであって、
リードフレーム、
前記リードフレーム上にアセンブルされた電界効果トランジスタチップ、及び
第1の端子と第2の端子と第3の端子とが前記パッケージの一つの側で露出され、前記第1、第2、又は第3の端子が前記パッケージの反対側でも露出されるように、前記アセンブルされたトランジスタをパッケージングする封入材料、
を含む、電界効果トランジスタパッケージ。 - 請求項1に記載のトランジスタであって、前記第1の端子がソース端子であり、前記第2の端子がゲート端子であり、前記第3の端子がドレイン端子である、トランジスタ。
- パワートランジスタパッケージであって、
フラットプレートと、前記プレートから間隔が開けられた同一平面フラットストリップとを含むリードフレームであって、前記プレートが第1の厚みを有し、前記ストリップが前記第1の厚みより小さい第2の厚みを有し、前記プレート及び前記ストリップが端子を有する、前記リードフレーム、
第3の厚みと、一つのチップ側の第1及び第2のコンタクトパッドと、反対のチップ側の第3のコンタクトパッドとを有する電界効果パワートランジスタチップであって、前記第1のパッドが前記プレートに取り付けられ、前記第2のパッドが前記ストリップに取り付けられ、前記第3のパッドが前記端子と同一平面にある、前記電界効果パワートランジスタチップ、及び
プレートとストリップの間の前記厚みの差と、チップと端子の間のスペースとを充填する封入化合物であって、前記化合物が、前記プレートと同一平面にある表面と、前記第3のパッド及び前記端子と同一平面にある反対の表面とを有し、前記表面間の距離が前記第1の厚み及び第3の厚みの合計に等しい、前記封入化合物、
を含む、パワートランジスタパッケージ。 - 請求項3に記載のパッケージであって、前記リードフレームプレートに取り付けられたヒートシンクを更に含む、パッケージ。
- 請求項3に記載のパッケージであって、前記トランジスタのパッド及び前記リードフレームプレート及びストリップの前記取り付けが、はんだ、導電接着剤、z軸導体、カーボンチューブ、及びグラフェン(rapheme)材料を含むグループから選択される材料の層を含む、パッケージ。
- 請求項5に記載のパッケージであって、前記端子が、はんだ、導電接着剤、z軸導体、カーボンチューブ、及びグラフェン材料を含むグループから選択される材料の層によって、前記プレート及びストリップに取り付けられる、パッケージ。
- 請求項3に記載のパッケージであって、前記リードフレーム及び前記端子が同じ金属でつくられる、パッケージ。
- 請求項3に記載のパッケージであって、前記リードフレーム及び前記端子が異なる金属でつくられる、パッケージ。
- 請求項3に記載のパッケージであって、前記第3のパッド及び前記端子を覆うためにパターニングされた堆積された金属層をさらに含む、パッケージ。
- 請求項9に記載のパッケージであって、前記堆積された層の前記金属が、スズ、銅、銅とニッケルとスズの連続層、銅とニッケルと金の連続層、及び耐火金属とアルミニウムの連続層を含むグループから選択される、パッケージ。
- 請求項10に記載のパッケージであって、前記堆積された金属層がカスタマイズされたパターンでパターニングされる、パッケージ。
- 請求項3に記載のパッケージであって、前記パッケージが金属クリップ及びワイヤが無い、パッケージ。
- パワー電界効果トランジスタパッケージを製造するための方法であって、
フラットプレートと、前記プレートから間隔が開けられた同一平面フラットストリップとを含むリードフレームを提供する工程であって、前記プレートが第1の厚みを有し、前記ストリップが前記第1の厚みより小さい第2の厚みを有する、工程、
第3の厚みと、一つのチップ側の第1及び第2のコンタクトパッドと、反対のチップ側の第3のコンタクトパッドとを有する電界効果パワートランジスタチップを提供する工程、
前記第1のパッドを前記プレートに、前記第2のパッドを前記ストリップに取り付ける工程、
端子が前記第3のコンタクトパッドと同一平面にあるように、前記端子を前記プレート及び前記ストリップに同時に取り付ける工程、及び
プレートとストリップの間の前記厚みの差と、チップと端子の間のスペースとを封入化合物で充填する工程であって、前記封入化合物が、前記プレートと同一平面にある表面と、前記第3のパッド及び端子と同一平面にある反対の表面とを有し、それによって、チップ、リードフレーム、及び端子が、前記第1の厚み及び第3の厚みの合計に等しい厚みを有するパッケージに統合される、工程、
を含む、方法。 - 請求項13に記載の方法であって、前記トランジスタのパッドを前記リードフレームプレート及び前記リードフレームストリップに取り付ける工程が、はんだ、導電接着剤、z軸導体、カーボンチューブ、及びグラフェン材料を含むグループから選択される材料の層を含む、方法。
- 請求項14に記載の方法であって、前記端子を前記リードフレームプレート及びリードフレームストリップに取り付ける工程が、はんだ、導電接着剤、z軸導体、カーボンチューブ、及びグラフェン材料を含むグループから選択される材料の層を含む、方法。
- 請求項15に記載の方法であって、前記堆積する方法がスクリーン印刷技法を含む、方法。
- 請求項13に記載の方法であって、前記第3のパッド及び前記端子を有する前記パッケージ表面上に金属層を堆積する工程と、前記第3のパッド及び前記端子を覆うために前記層をパターニングする工程とをさらに含む、方法。
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US13/082,147 US9165865B2 (en) | 2011-04-07 | 2011-04-07 | Ultra-thin power transistor and synchronous buck converter having customized footprint |
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US9171828B2 (en) | 2014-02-05 | 2015-10-27 | Texas Instruments Incorporated | DC-DC converter having terminals of semiconductor chips directly attachable to circuit board |
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US9508625B2 (en) * | 2014-04-01 | 2016-11-29 | Infineon Technologies Ag | Semiconductor die package with multiple mounting configurations |
US20150371930A1 (en) * | 2014-06-18 | 2015-12-24 | Texas Instruments Incorporated | Integrated Circuit Packaging Method Using Pre-Applied Attachment Medium |
US9721860B2 (en) | 2014-11-06 | 2017-08-01 | Texas Instruments Incorporated | Silicon package for embedded semiconductor chip and power converter |
US10249558B2 (en) * | 2014-11-20 | 2019-04-02 | Nsk Ltd. | Electronic part mounting heat-dissipating substrate |
CN104465423B (zh) * | 2014-12-08 | 2017-08-22 | 杰群电子科技(东莞)有限公司 | 一种双引线框架叠合设计半导体器件封装方法 |
US10032884B2 (en) | 2015-10-22 | 2018-07-24 | International Business Machines Corporation | Unmerged epitaxial process for FinFET devices with aggressive fin pitch scaling |
CN106024745A (zh) * | 2016-07-01 | 2016-10-12 | 长电科技(宿迁)有限公司 | 一种半导体管脚贴装结构及其焊接方法 |
CN109473414B (zh) * | 2017-09-08 | 2022-11-11 | 万国半导体(开曼)股份有限公司 | 模制智能功率模块及其制造方法 |
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DE102018214228A1 (de) * | 2018-08-23 | 2020-02-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg | Elektronik eines Elektromotors eines Kraftfahrzeugs |
US11145578B2 (en) | 2019-09-24 | 2021-10-12 | Infineon Technologies Ag | Semiconductor package with top or bottom side cooling and method for manufacturing the semiconductor package |
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