JP2020136573A - マルチチップモジュール、電子機器およびマルチチップモジュールの製造方法 - Google Patents
マルチチップモジュール、電子機器およびマルチチップモジュールの製造方法 Download PDFInfo
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- JP2020136573A JP2020136573A JP2019030551A JP2019030551A JP2020136573A JP 2020136573 A JP2020136573 A JP 2020136573A JP 2019030551 A JP2019030551 A JP 2019030551A JP 2019030551 A JP2019030551 A JP 2019030551A JP 2020136573 A JP2020136573 A JP 2020136573A
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- 230000012447 hatching Effects 0.000 description 5
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Abstract
Description
一関連技術によるマルチチップモジュールには、厚さ方向に積層する複数の半導体チップのそれぞれが、フリップチップ実装される。例えば、特許文献7(国際公開第2015/136998号)のマルチチップモジュールの場合では、それぞれに半導体チップをフリップチップボンディングで接続した複数の半導体基板が、半導体チップを囲むようにして配置される半導体基板を介して積層されている。言い換えれば、半導体チップが有する全ての電極が、この半導体チップの同一の表面に形成されている場合には、上記の一関連技術によるマルチチップモジュールに実装することができる。
本実施形態のマルチチップモジュール1では、図2Bなどに示したマルチチップモジュール1に、シールリング233、234を追加する。シールリング233、234は、各シリコン基板の間に配置される。特に、第1のシリコン基板20Aおよび第2のシリコン基板20Bの間と、第2のシリコン基板20Bおよび第3のシリコン基板20Cの間とに、シールリング233、234は配置される。こうすることによって、積層された第1のシリコン基板20A〜第3のシリコン基板20Cの内部空間が気密性を有することになる。言い換えれば、この内部空間は、マルチチップモジュール1の外部からの影響を受けにくくなる。その結果、この内部空間に配置された第1の半導体チップ10Aの動作の安定性が向上する。
10、10A、10B 半導体チップ
11 サブストレート
110、110A、110B 接地電極
12 絶縁層
13 サブストレート
131 拡散層
132 拡散層
14 絶縁膜
15 金属層
150、150A、150B 信号電極
20、20A、20B、20C シリコン基板
22、22A、22B、22C 導電性ビア
23 接合部
231A、231B、231C 接合端子
232A、232B、232C 接合端子
233A、233B、233C シールリング
234A、234B、234C シールリング
24、24A、24C 信号配線
25、25A、25C 接地配線
26B 内側壁面
31A、31B バンプ
32A バンプ
40 アンダーフィル
42 導電性接着剤
60 グランド
61 接地配線
62 プリント基板
63 信号配線
64 ボンディングワイヤ
71 シリコン基板
711 貫通穴
712 内側部分
72 貫通穴
73 絶縁膜
74 導体
75A、75B 配線膜
100 電子機器
D 距離
Claims (9)
- 第1配線が設けられた第1実装面を有する第1基板と、
第1電極が設けられた第1表面と、前記第1表面に対向する第2表面とを有し、前記第1配線および前記第1電極が導通するように前記第1基板に実装された第1半導体チップと、
第2実装面と、前記第2実装面に対向する第3実装面とを有し、前記第2実装面が前記第1実装面に対向するように前記第1基板に接合された第2基板と、
第2配線が設けられた第4実装面と、前記第4実装面に対向する第5実装面とを有し、前記第4実装面が前記第3実装面に対向するように前記第2基板に接合され、かつ、前記第2配線が前記第2表面に導通して前記第2表面の電位が安定化するように前記第1半導体チップを実装する第3基板と、
第3表面を有し、前記第3表面が前記第5実装面に対向するように前記第3基板に実装された第2半導体チップと
を具備する
マルチチップモジュール。 - 請求項1に記載のマルチチップモジュールにおいて、
前記第1電極を前記第1配線に導通する第1バンプと、
前記第2表面を前記第2配線に導通する第2バンプと
をさらに具備する
マルチチップモジュール。 - 請求項1または2に記載のマルチチップモジュールにおいて、
前記第1基板は、
前記第1実装面に設けられた第1接合端子
をさらに具備し、
前記第2基板は、
前記第2実装面におよび前記第3実装面の間を貫通する導電性ビアと、
前記第2実装面に設けられて、前記導電性ビアの一端に接続され、前記第1接合端子に接合された第2接合端子と、
前記第3実装面に設けられて、前記導電性ビアの他端に接続された第3接合端子と
をさらに具備し、
前記第3基板は、
前記第4実装面に設けられて、前記第3接合端子に接合された第4接合端子
をさらに具備し、
前記第1基板、前記第2基板および前記第3基板が積層されている積層方向において、前記第1接合端子から前記第4接合端子までの第1距離は、前記第1配線から前記第2配線までの第2距離に等しい
マルチチップモジュール。 - 請求項3に記載のマルチチップモジュールにおいて、
前記第2基板は、
前記第1半導体チップとの間で物理的な干渉が発生しないための内部空間に面する内側壁面
をさらに具備する
マルチチップモジュール。 - 請求項4に記載のマルチチップモジュールにおいて、
前記第1基板の前記第1実装面と、前記第2基板の前記第2実装面との間に気密性を有するように設けられ、前記積層方向に直交する方向において前記内側壁面の周囲を囲むように配置された第1シールリングと、
前記第2基板の前記第3実装面と、前記第3基板の前記第4実装面との間に気密性を有するように設けられ、前記積層方向に直交する方向において前記内側壁面の周囲を囲むように配置された第2シールリングと
をさらに具備する
マルチチップモジュール。 - 請求項1〜5のいずれか一項に記載のマルチチップモジュールにおいて、
前記第1基板、前記第2基板および前記第3基板のうち少なくとも1つは、シリコン基板を備える
マルチチップモジュール。 - 請求項1〜6のいずれか一項に記載のマルチチップモジュールにおいて、
前記第1基板、前記第2基板および前記第3基板のうち少なくとも1つは、積層された複数の基板を備える
マルチチップモジュール。 - マルチチップモジュールと、
前記マルチチップモジュールを実装する基板と
を具備し、
前記マルチチップモジュールは、
第1配線が設けられた第1実装面を有する第1基板と、
第1電極が設けられた第1表面と、前記第1表面に対向する第2表面とを有し、前記第1配線および前記第1電極が導通するように前記第1基板に実装された第1半導体チップと、
第2実装面と、前記第2実装面に対向する第3実装面とを有し、前記第2実装面が前記第1実装面に対向するように前記第1基板に接合された第2基板と、
第2配線が設けられた第4実装面と、前記第4実装面に対向する第5実装面とを有し、前記第4実装面が前記第3実装面に対向するように前記第2基板に接合され、かつ、前記第2配線が前記第2表面に導通して前記第2表面の電位が安定化するように前記第1半導体チップを実装する第3基板と、
第3表面を有し、前記第3表面が前記第5実装面に対向するように前記第3基板に実装された第2半導体チップと
を具備する
電子機器。 - 第1配線が設けられた第1実装面を有する第1基板に、第1電極が設けられた第1表面と、前記第1表面に対向する第2表面とを有する第1半導体チップを、前記第1配線および前記第1電極が導通するように実装することと、
前記第1基板に、第2実装面と、前記第2実装面に対向する第3実装面とを有する第2基板を、前記第2実装面が前記第1実装面に対向するように接合することと、
前記第2基板に、第4実装面と、前記第4実装面に対向する第5実装面とを有する第3基板を、前記第4実装面が前記第3実装面に対向するように接合することと
を含み、
前記第2基板に前記第3基板を接合することは、
前記第1半導体チップを、前記第3基板に、前記第2表面が前記第4実装面に設けられた第2配線と導通して前記第2表面の電位が安定化するように実装することを、前記第2基板に前記第3基板を接合することと同時に行うこと
を含む
マルチチップモジュールの製造方法。
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