JP2010199286A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2010199286A JP2010199286A JP2009042309A JP2009042309A JP2010199286A JP 2010199286 A JP2010199286 A JP 2010199286A JP 2009042309 A JP2009042309 A JP 2009042309A JP 2009042309 A JP2009042309 A JP 2009042309A JP 2010199286 A JP2010199286 A JP 2010199286A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 153
- 239000004020 conductor Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 5
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- 230000000694 effects Effects 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 description 10
- 125000006850 spacer group Chemical group 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000002161 passivation Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
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- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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Abstract
【解決手段】配線基板2と、前記配線基板2に搭載された第1の半導体チップ6と、前記第1の半導体チップ6に積層された第2の半導体チップ9と、前記第1の半導体チップ6と前記第2の半導体チップ9との間に挿入された導体コートチップ21と、前記第2の半導体チップ9と、前記導体コートチップ21とを電気的に接続するワイヤ23cと、を備えることを特徴とする。
【選択図】図1
Description
図4は、このようなBGA型半導体装置の一例を示すものである。
また、配線基板2の他面2b上に設けられた配線で、ソルダーレジスト14の開口部から露出された部位には、複数のランド4が形成されている。ランド4は、例えばCu素材とNiやAuメッキから構成されている。
なお、複数のランド4は、配線基板2の他面2b上に所定の間隔、例えば1mm間隔で格子状に配置されている。
第1の半導体チップ6は、平面視略矩形の板状で、一面6aに所望の回路、例えば論理回路や記憶回路が形成されている。
第1の半導体チップ6の第1の電極パッド10aは、それぞれ対応する配線基板2の接続パッド3aと、導電性のワイヤ11aにより結線されることで電気的に接続されている。ワイヤ11aには、例えばAu、Cu等が用いられている。
このようにして、ワイヤ11a、接続パッド3a及び内部配線15を介して第1の半導体チップ6とランド4とが電気的に接続されている。
第3の半導体チップ8の一面8aの周辺近傍位置には、複数の第3の電極パッド10cが形成されている。また、第3の電極パッド10cを除く第3の半導体チップ8の一面8aには、図示略のパッシベーション膜が形成されており、回路形成面を保護している。
第3の半導体チップ8の第3の電極パッド10cは、それぞれ対応する配線基板2の接続パッド3cと、導電性のワイヤ11cにより結線されることで電気的に接続されている。
第2の半導体チップ9の一面9aの周辺近傍位置には、複数の第2の電極パッド10bが形成されている。また、第2の電極パッド10bを除く第2の半導体チップ9の一面9aには、図示略のパッシベーション膜が形成されており、回路形成面を保護している。
第2の半導体チップ9の第2の電極パッド10bは、それぞれ対応する配線基板2の接続パッド3bと、導電性のワイヤ11bにより結線されることで電気的に接続されている。
高周波用チップは、他の種類の半導体チップと比べて高周波ノイズをチップ外に発生し易く、また、高周波用チップ自身は、チップ外部からの高周波ノイズや電源変動ノイズの影響を受けて誤動作し易い傾向にある。
図3に示すように、メモリチップ内部の電源やグラウンドの電位は実動作時には各配線位置により安定しておらず、メモリ書込みや出力スイッチング動作などのときに大きな電流が流れると、電圧変動が発生する。
本発明の半導体装置は、配線基板と、前記配線基板に搭載された第1の半導体チップと、前記第1の半導体チップに積層された第2の半導体チップと、前記第1の半導体チップと前記第2の半導体チップとの間に挿入された導体コートチップと、前記第2の半導体チップと、前記導体コートチップとを電気的に接続するワイヤと、を備えることを特徴とする。
また、電圧変動源となる第2の半導体チップに近い位置に導体コートチップが配置され、該導体コートチップと第2の半導体チップとがワイヤによって電気的に接続されることで、電圧変動抑制手段として機能する。これにより、インピーダンスを下げることができ、電圧変動ノイズを抑制することができる。
図1に示すように、半導体装置1Aは、一面2aに複数の接続パッド24a、24b、24c、24dを有し、他面2bに接続パッド24a、24b、24dと電気的に接続された複数のランド4とを有する配線基板2と、配線基板2の一面2aに搭載された第1の半導体チップ6と、第1の半導体チップ6に積層されたスペーサ7と、スペーサ7に積層された導体コートチップ21と、導体コートチップ21に積層された第3の半導体チップ8と、第3の半導体チップ8に積層された第2の半導体チップ9と、ワイヤ23a、23b、23c、23d、23eと、少なくとも半導体チップ6、8、9と導体コートチップ21とワイヤ23a、23b、23c、23d、23eとを覆う絶縁性樹脂からなる封止体12と、ランド4に設けられた半田ボール等の外部端子5とから構成されてきた。
なお、後述するように接続パッド24cとランド4とは電気的に接続されていない。
また、配線基板2の他面2b上に設けられた配線で、ソルダーレジスト14の開口部から露出された部位には、複数のランド4が形成されている。ランド4は、例えばCu素材とNiやAuメッキから構成されている。
また、接続パッド24c同士は、配線基板2の内部配線15bにより電気的に接続されている。
なお、複数のランド4は、配線基板2の他面2b上に所定の間隔、例えば1mm間隔で格子状に配置されている。
第1の半導体チップ6は、平面視略矩形の板状で、一面6aに所望の回路、例えば論理回路や記憶回路が形成されている。
第1の半導体チップ6の第1の電極パッド22aは、それぞれ対応する配線基板2の第1の接続パッド24aと、導電性の第1のワイヤ23aにより結線されることで電気的に接続されている。第1のワイヤ23aには、例えばAu、Cu等が用いられている。
このようにして、第1のワイヤ23a、第1の接続パッド24a及び内部配線15aを介して第1の半導体チップ6とランド4とが電気的に接続されている。なお、本実施形態では、第1の半導体チップ6には、高周波用チップを用いる。
導体コートチップ21は、後述する第2の半導体チップ9と対向する側から見たときに、第1の半導体チップ6、第2の半導体チップ9及び第3の半導体チップ8よりも面積が大きくなるように構成されている。
また、第2の半導体チップ9と対向する側から見たときに、第1の半導体チップ6は、導体コートチップ21によって隠され、第2の半導体チップ9及び第3の半導体チップ8は、導体コートチップ21の外側にはみ出さないように構成されている。
このように構成することで、導体コートチップ21がシールドとして機能し、第1の半導体チップ6と他の半導体チップ8、9との間の直線的な強い高周波ノイズや電磁ノイズを遮断することができる。
また、導体コートチップ21の一面21aの周辺近傍位置には、複数の第4の電極パッド22dが形成されており、第4の電極パッド22dには、第3のワイヤ23cと第4のワイヤ23dがそれぞれ複数接続されている。
第3の半導体チップ8の一面8aの周辺近傍位置には、複数の第5の電極パッド22eが形成されている。また、第5の電極パッド22eを除く半導体チップ8の一面8aには、図示略のパッシベーション膜が形成されており、回路形成面を保護している。
第3の半導体チップ8の第5の電極パッド22eは、それぞれ対応する配線基板2の第4の接続パッド24dと、導電性の第5のワイヤ23eにより結線されることで電気的に接続されている。
このようにして、第5のワイヤ23e、第4の接続パッド24d及び内部配線15aを介して第3の半導体チップ8とランド4とが電気的に接続されている。なお、本実施形態では、第3の半導体チップ8には、DRAMメモリチップを用いる。
第2の半導体チップ9の一面9aの周辺近傍位置には、複数の第2の電極パッド22b及び複数の第3の電極パッド22cが形成されている。また、各電極パッド22b、22cを除く半導体チップ9の一面9aには、図示略のパッシベーション膜が形成されており、回路形成面を保護している。
第2の半導体チップ9の第2の電極パッド22bは、それぞれ対応する配線基板2の第2の接続パッド24bと、導電性の第2のワイヤ23bにより結線されることで電気的に接続されている。
このようにして、第2のワイヤ23b、第2の接続パッド24b及び内部配線15aを介して第2の半導体チップ9とランド4とが電気的に接続されている。なお、本実施形態では、第2の半導体チップ9には、ロジックチップを用いる。
このように、導体コートチップ21と、電圧変動源である第2の半導体チップ9と、グラウンドである配線基板2とを複数の短いワイヤ23c、23dによって接続することで、インピーダンスを低下させることができる。また、導体コートチップ21の一面21aを導体25によってコーティングするので、導体コートチップ21の電気容量が増し、インピーダンスが低下する。これにより、電圧変動ノイズを抑制することができる。
これにより、導体コートチップ21がシールドとして機能するので、高周波用チップである第1の半導体チップ6と他の半導体チップ8、9との間の直線的な強い高周波ノイズや電磁ノイズを遮断することができる。その結果、第1の半導体チップ6から発生する高周波ノイズと、他の半導体チップ8、9とから発生する高周波ノイズとが相互に影響し合うことを抑制することができる。
例えば、本実施形態では、半導体チップを3つ搭載したが、更に半導体チップを搭載しても構わず、スペーサも更に複数搭載しても構わない。
Claims (8)
- 配線基板と、
前記配線基板に搭載された第1の半導体チップと、
前記第1の半導体チップに積層された第2の半導体チップと、
前記第1の半導体チップと前記第2の半導体チップとの間に挿入された導体コートチップと、
前記第2の半導体チップと、前記導体コートチップとを電気的に接続するワイヤと、を備えることを特徴とする半導体装置。 - 前記第2の半導体チップと、前記導体コートチップとが、複数のワイヤによって電気的に接続されてい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2の半導体チップと対向する側から見たときに、前記導体コートチップの面積が、前記第1の半導体チップの面積及び前記第2の半導体チップの面積よりも大きいことを特徴とする請求項1又は請求項2に記載の半導体装置。
- 一面に第1の接続パッドと、第2の接続パッドと、第3の接続パッドとを有し、他面に前記各接続パッドと電気的に接続された複数のランドを有する配線基板と、
前記配線基板の一面に搭載された第1の半導体チップと、
前記第1の半導体チップに設けられた第1の電極パッドと、
前記第1の電極パッドと前記第1の接続パッドとを電気的に接続する第1のワイヤと、
前記第1の半導体チップに積層された第2の半導体チップと、
前記第2の半導体チップに設けられた第2の電極パッド及び第3の電極パッドと、
前記第2の電極パッドと前記第2の接続パッドとを電気的に接続する第2のワイヤと、
前記第1の半導体チップと前記第2の半導体チップとの間に挿入された導体コートチップと、
前記導体コートチップに設けられた第4の電極パッドと、
前記第3の電極パッドと前記第4の電極パッドとを電気的に接続する第3のワイヤと、
前記第4の電極パッドと前記第3の接続パッドとを電気的に接続する第4のワイヤと、
少なくとも前記第1の半導体チップと、第2の半導体チップと、前記導体コートチップと、前記配線基板の一面とを覆う絶縁性樹脂からなる封止体と、を備えることを特徴とする半導体装置。 - 前記第3の電極パッドと前記第4の電極パッドとが、複数の第3のワイヤによって電気的に接続されていることを特徴とする請求項4に記載の半導体装置。
- 前記第2の半導体チップと対向する側から見たときに、前記導体コートチップの面積が、前記第1の半導体チップの面積及び前記第2の半導体チップの面積よりも大きいことを特徴とする請求項4又は請求項5に記載の半導体装置。
- 前記第1の半導体チップが、高周波用チップであり、前記第2の半導体チップがメモリチップであることを特徴とする請求項1ないし請求項6の何れか1項に記載の半導体装置。
- 前記配線基板に前記第1の半導体チップ及び前記第2の半導体チップの他に半導体チップが積層されていることを特徴とする請求項1ないし請求項7の何れか1項に記載の半導体装置。
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JPWO2019123777A1 (ja) * | 2017-12-20 | 2021-01-21 | ソニーセミコンダクタソリューションズ株式会社 | 半導体装置 |
JP7179019B2 (ja) | 2017-12-20 | 2022-11-28 | ソニーセミコンダクタソリューションズ株式会社 | 半導体装置 |
JP2023015234A (ja) * | 2017-12-20 | 2023-01-31 | ソニーセミコンダクタソリューションズ株式会社 | 半導体装置及びチューナ装置 |
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WO2019123777A1 (ja) * | 2017-12-20 | 2019-06-27 | ソニーセミコンダクタソリューションズ株式会社 | 半導体装置 |
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KR20230076720A (ko) * | 2021-11-24 | 2023-05-31 | 넷솔 주식회사 | 자기 차폐층을 구비한 mram 패키지 및 이의 제조방법 |
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KR20230077601A (ko) * | 2021-11-24 | 2023-06-01 | 넷솔 주식회사 | 자기 차폐층을 구비한 mram 패키지 및 이의 제조방법 |
KR102604273B1 (ko) | 2021-11-24 | 2023-11-20 | 넷솔 주식회사 | 자기 차폐층을 구비한 mram 패키지 및 이의 제조방법 |
KR102613576B1 (ko) * | 2021-11-24 | 2023-12-13 | 넷솔 주식회사 | 자기 차폐층을 구비한 mram 패키지 및 이의 제조방법 |
KR102624903B1 (ko) | 2021-11-24 | 2024-01-16 | 넷솔 주식회사 | 자기 차폐층을 구비한 mram 패키지 및 이의 제조방법 |
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US20120211875A1 (en) | 2012-08-23 |
US9087710B2 (en) | 2015-07-21 |
US8198718B2 (en) | 2012-06-12 |
US20100213585A1 (en) | 2010-08-26 |
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