JPWO2019049213A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JPWO2019049213A1 JPWO2019049213A1 JP2018517238A JP2018517238A JPWO2019049213A1 JP WO2019049213 A1 JPWO2019049213 A1 JP WO2019049213A1 JP 2018517238 A JP2018517238 A JP 2018517238A JP 2018517238 A JP2018517238 A JP 2018517238A JP WO2019049213 A1 JPWO2019049213 A1 JP WO2019049213A1
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- Prior art keywords
- lead terminal
- groove
- semiconductor device
- connector
- electronic element
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 91
- 239000000463 material Substances 0.000 claims abstract description 62
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000011449 Rosa Nutrition 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- 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
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/183—Connection portion, e.g. seal
- H01L2924/18301—Connection portion, e.g. seal being an anchoring portion, i.e. mechanical interlocking between the encapsulation resin and another package part
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Abstract
Description
この従来の半導体装置においては、接合時に導電性接合材が電子素子に向けて流れるのを堰き止めるものではなく、当該導電性接合材が所定の位置で溶融して固まらないと、当該導電性接合材が電子素子に接触する場合がある。
封止部Mと、
前記封止部内に設けられた第1電子素子と、
前記封止部内に設けられた第2電子素子と、
一端の上面に前記封止部内で前記第1電子素子SW1が載置され、他端が前記封止部から露出している第1のリード端子と、
一端の上面に前記封止部内で前記第2電子素子SW2が載置され、他端が前記封止部から露出している第2のリード端子と、
一端が前記第1電子素子の入出力電極に電気的に接続され、他端が前記第2のリード端子の前記一端に電気的に接続された接続子と、
前記接続子の他端と前記第2のリード端子の前記一端の前記上面との間を接合し且つ導電性を有する導電性接合材と、を備え、
前記第2のリード端子の前記一端の前記上面には、前記接続子と前記第2のリード端子との接合時に前記導電性接合材が前記第2電子素子に向けて流れるのを堰き止めるとともに前記封止部の封止時にモールドロックするための溝が形成されている
ことを特徴とする。
前記溝は、
前記封止部の封止材が埋め込まれる第1の溝部と、
前記第1の溝部に隣接して形成され且つ前記導電性接合材を堰き止めるための第2の溝部と、を含む
ことを特徴とする。
前記第2の溝部は、前記第1の溝部よりも、前記接続子の前記他端に近い位置に形成されている
ことを特徴とする。
前記半導体装置において、
前記第2の溝部は、前記第1の溝部の両側に形成されていることを特徴とする。
前記第2の溝部の深さは、前記第1の溝部の深さよりも浅いことを特徴とする。
前記第1の溝部の内壁は、前記第1の溝部の開口部から底部に向けて前記第1の溝部の幅が広がるように、傾斜している
ことを特徴とする。
前記第2の溝部の底部は、前記第1の溝部の前記開口部に近づくにつれて浅くなるように形成されている
ことを特徴とする。
前記溝は、前記接続子の前記一端と前記第2電子素子との間の領域に位置するように、前記第2のリード端子の前記一端の前記上面に形成されている
ことを特徴とする。
前記溝は、前記第2のリード端子の前記一端の前記上面に直線状に延在し、又は、曲がって延在している
ことを特徴とする。
前記第2の溝部の開口部は、前記第1の溝部の開口部に隣接して延在するように形成されている
ことを特徴とする。
前記溝は、前記第2のリード端子の前記一端の前記上面において、前記接続子の前記他端の周囲の領域の少なくとも一部、又は、前記第2電子素子の周囲の領域の少なくとも一部を囲うように、延在している
ことを特徴とする。
複数の前記溝が、前記第2のリード端子の前記一端の前記上面に形成されていることを特徴とする。
前記導電性接合材は、はんだ材である。
前記第1及び第2電子素子は、MOSFETであり、前記第1電子素子の入出力電極は、MOSFETのソース電極である。
前記第1のリード端子の前記一端の表面の高さは、前記第2のリード端子の前記一端の前記表面の高さと同じである
ことを特徴とする。
この封止部Rは、例えば、エポキシ樹脂等で構成されている。
また、ローサイドのゲート用のリード端子(第4のリード端子)GV2は、一端(インナーリード部)が封止部R内で第2のリード端子TVの一端(インナーリード部)に近接して配置され、他端(アウターリード部)が封止部Rの長手方向fxに沿った他端側から露出している。
したがって、第1の接続子(ゲートクリップ)GC1と第1の電極(ゲート電極)GT1とのはんだ接続を所定の位置で確実にして、第1の接続子(ゲートクリップ)GC1の一端dが他の配線部分に電気的に接続されるのを抑制することができる。
R 封止部
MU1 ハイサイドの第1電子素子
MV1 ハイサイドの第1電子素子
MW1 ハイサイドの第1電子素子
MU2 ローサイドの第2電子素子
MV2 ローサイドの第2電子素子
MW2 ローサイドの第2電子素子
MSU 電源用リード端子
MSV 電源用リード端子
MSW 電源用リード端子
MEU 接地用リード端子
MEV 接地用リード端子
MEW 接地用リード端子
TU 入出力用リード端子
TV 入出力用リード端子
TW 入出力用リード端子
GU1 ハイサイドのゲート用のリード端子
GV1 ハイサイドのゲート用のリード端子
GW1 ハイサイドのゲート用のリード端子
GU2 ローサイドのゲート用のリード端子
GV2 ローサイドのゲート用のリード端子
GW2 ローサイドのゲート用のリード端子
GC1 ハイサイドの第1の接続子(ゲートクリップ)
GC2 ローササイドの第3の接続子(ゲートクリップ)
SC1 ハイサイドの第2の接続子(ソースクリップ)
SC2 ローササイドの第4の接続子(ソースクリップ)
Claims (15)
- 封止部Mと、
前記封止部内に設けられた第1電子素子と、
前記封止部内に設けられた第2電子素子と、
一端の上面に前記封止部内で前記第1電子素子が載置され、他端が前記封止部から露出している第1のリード端子と、
一端の上面に前記封止部内で前記第2電子素子が載置され、他端が前記封止部から露出している第2のリード端子と、
一端が前記第1電子素子の入出力電極に電気的に接続され、他端が前記第2のリード端子の前記一端に電気的に接続された接続子と、
前記接続子の他端と前記第2のリード端子の前記一端の前記上面との間を接合し且つ導電性を有する導電性接合材と、を備え、
前記第2のリード端子の前記一端の前記上面には、前記接続子と前記第2のリード端子との接合時に前記導電性接合材が前記第2電子素子に向けて流れるのを堰き止めるとともに前記封止部の封止時にモールドロックするための溝が形成されている
ことを特徴とする半導体装置。 - 前記溝は、
前記封止部の封止材が埋め込まれる第1の溝部と、
前記第1の溝部に隣接して形成され且つ前記導電性接合材を堰き止めるための第2の溝部と、を含む
ことを特徴とする請求項1に記載の半導体装置。 - 前記第2の溝部は、前記第1の溝部よりも、前記接続子の前記他端に近い位置に形成されている
ことを特徴とする請求項2に記載の半導体装置。 - 前記第2の溝部は、前記第1の溝部の両側に形成されていることを特徴とする請求項2に記載の半導体装置。
- 前記第2の溝部の深さは、前記第1の溝部の深さよりも浅いことを特徴とする請求項3に記載の半導体装置。
- 前記第1の溝部の内壁は、前記第1の溝部の開口部から底部に向けて前記第1の溝部の幅が広がるように、傾斜している
ことを特徴とする請求項5に記載の半導体装置。 - 前記第2の溝部の底部は、前記第1の溝部の前記開口部に近づくにつれて浅くなるように形成されている
ことを特徴とする請求項6に記載の半導体装置。 - 前記溝は、前記接続子の前記一端と前記第2電子素子との間の領域に位置するように、前記第2のリード端子の前記一端の前記上面に形成されている
ことを特徴とする請求項3に記載の半導体装置。 - 前記溝は、前記第2のリード端子の前記一端の前記上面に直線状に延在し、又は、曲がって延在している
ことを特徴とする請求項3に記載の半導体装置。 - 前記第2の溝部の開口部は、前記第1の溝部の開口部に隣接して延在するように形成されている
ことを特徴とする請求項9に記載の半導体装置。 - 前記溝は、前記第2のリード端子の前記一端の前記上面において、前記接続子の前記他端の周囲の領域の少なくとも一部、又は、前記第2電子素子の周囲の領域の少なくとも一部を囲うように、延在している
ことを特徴とする請求項2に記載の半導体装置。 - 複数の前記溝が、前記第2のリード端子の前記一端の前記上面に形成されていることを特徴とする請求項2に記載の半導体装置。
- 前記導電性接合材は、はんだ材であることを特徴とする請求項1に記載の半導体装置。
- 前記第1及び第2電子素子は、MOSFETであり、前記第1電子素子の入出力電極は、MOSFETのソース電極であることを特徴とする請求項2に記載の半導体装置。
- 前記第1のリード端子の前記一端の表面の高さは、前記第2のリード端子の前記一端の前記表面の高さと同じである
ことを特徴とする請求項2に記載の半導体装置。
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