JP5894502B2 - ワイヤボンディング構造および半導体装置 - Google Patents
ワイヤボンディング構造および半導体装置 Download PDFInfo
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- JP5894502B2 JP5894502B2 JP2012126816A JP2012126816A JP5894502B2 JP 5894502 B2 JP5894502 B2 JP 5894502B2 JP 2012126816 A JP2012126816 A JP 2012126816A JP 2012126816 A JP2012126816 A JP 2012126816A JP 5894502 B2 JP5894502 B2 JP 5894502B2
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- bonding
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- 239000004065 semiconductor Substances 0.000 title claims description 105
- 238000005304 joining Methods 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Classifications
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- H01L23/293—Organic, e.g. plastic
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- H01L23/495—Lead-frames or other flat leads
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Description
110,120 ワイヤボンディング構造
210 半導体素子(第1接合対象)
211 ゲート電極
212 (第1)接合面
215 ソース電極(主電流電極)
220 (追加の)半導体素子
221 ゲート電極
222 (追加の第1)接合面
225 ソース電極
310 リード(第2接合対象)
311 先端部
312 連結部
313 基端部
315 端子
331 (第2)接合面
332 (第3)接合面
333 稜線
320 (追加の)リード
321 先端部
341 (追加の第2)接合面
342 (追加の第3)接合面
343 稜線
322 連結部
323 基端部
325 端子
350 (主電流)リード
351 先端部
352 連結部
353 基端部
355 (主電流)接合面
356 端子
360,370 リード
361,371 ダイボンディング部
410 ワイヤ
420 (追加の)ワイヤ
411,421 ファーストボンディング部
412,422 セカンドボンディング部
413,423 橋絡部
430,440 ボールバンプ部
450,460(主電流)ワイヤ
500 樹脂パッケージ
z (第1)方向
Claims (21)
- 第1接合対象と、
第2接合対象と、
上記第1接合対象に接合されたファーストボンディング部、および上記第2接合対象に接合されたセカンドボンディング部、を有するワイヤと、
を備える、ワイヤボンディング構造であって、
上記第1接合対象は、第1方向一方側を臨み、かつ上記ファーストボンディング部が接合された第1接合面を有し、
上記第2接合対象は、ともに上記第1方向一方側を臨むとともに、上記第1方向一方側において互いのなす角が180°を超える第2接合面および第3接合面を有し、
上記第2および第3接合面に跨るボールバンプ部が設けられており、
上記セカンドボンディング部は、上記ボールバンプ部を介して上記第2接合対象に接合されていることを特徴とする、ワイヤボンディング構造。 - 上記第2接合面は、上記第3接合面よりも上記第1接合対象側に位置する、請求項1に記載のワイヤボンディング構造。
- 上記第3接合面は、上記第2接合面から遠ざかるほど、上記第1方向他方側に位置するように傾いている、請求項2に記載のワイヤボンディング構造。
- 上記第2接合面は、上記第1方向一方側を向いている、請求項3に記載のワイヤボンディング構造。
- 上記第2接合面と上記第3接合面とは、稜線を挟んで隣接している、請求項1ないし4のいずれかに記載のワイヤボンディング構造。
- 上記第2接合面および上記第3接合面は、互いに隣り合う方向が短手方向である細長形状である、請求項1ないし5のいずれかに記載のワイヤボンディング構造。
- 上記ワイヤは、上記ボールバンプ部から上記第2接合面と上記第3接合面とが隣り合う方向に延びている、請求項1ないし6のいずれかに記載のワイヤボンディング構造。
- 上記セカンドボンディング部は、上記第1方向視において上記第2接合面および上記第3接合面と重なっている、請求項1ないし7のいずれかに記載のワイヤボンディング構造。
- 上記第1方向視において、上記セカンドボンディング部と上記第2接合面とが重なる面積は、上記セカンドボンディング部と上記第3接合面とが重なる面積よりも大である、請求項8に記載のワイヤボンディング構造。
- 上記ワイヤおよび上記ボールバンプ部は、Auからなる、請求項1ないし9のいずれかに記載のワイヤボンディング構造。
- 請求項1ないし10のいずれかに記載のワイヤボンディング構造を有する、半導体装置であって、
上記第1接合対象としての半導体素子と、
上記第2接合対象としてのリードと、
を備えることを特徴とする、半導体装置。 - 上記リードは、上記第2および第3接合面を有する先端部、この先端部よりも上記第1方向他方側に位置する基端部、これら先端部および基端部を繋ぐ連結部を有する折り曲げ形状とされている、請求項11に記載の半導体装置。
- 上記半導体素子が搭載されたダイボンディング部を備え、
上記ダイボンディング部と上記リードの上記基端部は、上記第1方向における位置が一致している、請求項12に記載の半導体装置。 - 上記半導体素子は、上記第1接合面を有するゲート電極、およびこのゲート電極からの入力によって導通が制御される主電流電極を具備し、
上記リードとは絶縁された主電流リードをさらに備え、
上記主電流電極と上記主電流リードとは、1以上の主電流ワイヤによって接続されている、請求項11ないし13のいずれかに記載の半導体装置。 - 複数の上記主電流ワイヤを備える、請求項14に記載の半導体装置。
- 上記主電流ワイヤは、Cuからなる、請求項14または15に記載の半導体装置。
- 上記主電流リードは、上記1以上の主電流ワイヤがボンディングされる主電流接合面を有する、請求項14ないし16のいずれかに記載の半導体装置。
- 上記主電流接合面は、細長形状であり、
上記第2および第3接合面は、上記主電流接合面の長手方向と一致する長手方向を有する細長形状である、請求項17に記載の半導体装置。 - 上記主電流接合面と、上記第2および第3接合面とは、上記半導体装置の一端縁に対して平行であり、かつこの端縁から遠ざかる方向において重なる位置に並んで配置されている、請求項18に記載の半導体装置。
- 上記半導体素子および上記ワイヤを覆う樹脂パッケージを備える、請求項11ないし19のいずれかに記載の半導体装置。
- 追加の第1接合面を有する追加の半導体素子と、
追加の第2接合面および追加の第3接合面を有する追加のリードと、
上記追加の第1接合面と上記追加の第2接合面および上記追加の第3接合面に接合された追加のワイヤと、を備え、
上記第2および第3接合面と上記追加の第2および上記追加の第3接合面とは、上記半導体素子および上記追加の半導体素子を挟んで離間配置されており、かつ互いの長手方向が平行でありかつ互いが離間する方向に直角である細長形状とされている、請求項11ないし20のいずれかに記載の半導体装置。
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US13/909,278 US9070682B2 (en) | 2012-06-04 | 2013-06-04 | Semiconductor device packaging having plurality of wires bonding to a leadframe |
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