JP7490484B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP7490484B2 JP7490484B2 JP2020125554A JP2020125554A JP7490484B2 JP 7490484 B2 JP7490484 B2 JP 7490484B2 JP 2020125554 A JP2020125554 A JP 2020125554A JP 2020125554 A JP2020125554 A JP 2020125554A JP 7490484 B2 JP7490484 B2 JP 7490484B2
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- semiconductor device
- insulating material
- solder resist
- resin layer
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Description
図1は、第1実施形態による半導体装置1の構成例を示す断面図である。本実施形態による半導体装置1は、例えば、NAND型フラッシュメモリである。半導体装置1は、配線基板10と、半導体チップとしてのコントローラチップ30と、樹脂層35と、樹脂層90と、樹脂層40と、スペーサ50と、半導体チップとしてのNAND型メモリチップ(以下、メモリチップ)60と、ボンディングワイヤ80を備えている。樹脂層90はいわゆるモールド樹脂であり、封止樹脂である。尚、本実施形態は、NAND型フラッシュメモリに限定されず、フリップチップ接続される半導体装置に適用可能である。
図3は、変形例1による配線基板10、樹脂層35およびそれらの周辺の構成例を示す断面図である。第1実施形態の変形例1は、開口部(孔部)161が設けられる点で、第1実施形態と異なる。
図4は、変形例2による配線基板10、樹脂層35およびそれらの周辺の構成例を示す断面図である。第1実施形態の変形例2は、コントローラチップ30の外周部において、ソルダレジスト16がダムとして機能するように厚く設けられる点で、第1実施形態と異なる。
図5は、変形例3による配線基板10、樹脂層35およびそれらの周辺の構成例を示す断面図である。変形例3は、配線基板10にソルダレジストが複数回塗布される点で、第1実施形態と異なる。尚、図5に示す例では、変形例2で説明したように、突出部17が設けられている。しかし、第1実施形態のように、突出部17が設けられなくてもよい。
図6は、変形例4によるコントローラチップ30の金属バンプ31の配置例を示す平面図である。第1実施形態の変形例4は、ソルダレジスト16が局所的に厚くなっている点で、第1実施形態と異なる。
図8は、第2実施形態による配線基板10およびその周辺の構成例を示す断面図である。第2実施形態は、ソルダレジスト16が中心部から外周部にかけて徐々に厚くなる点で、第1実施形態と異なる。
図9は、変形例5による配線基板10およびその周辺の構成例を示す断面図である。第2実施形態の変形例5は、開口部161が設けられない点で、第2実施形態と異なる。
Claims (12)
- 絶縁材と、該絶縁材から露出し、絶縁基板に設けられる配線と電気的に接続されるパッドと、を有する配線基板と、
前記パッドに接続されるバンプを、前記配線基板に対向する第1面に有する半導体チップと、
前記配線基板と前記半導体チップとの間において前記バンプの周囲を覆う樹脂層と、を備え、
前記半導体チップは、前記半導体チップの中央部付近に位置する第1領域と、前記第1領域よりも外側に位置する第2領域と、前記第2領域よりも外側に位置する第3領域と、前記第3領域よりも外側に位置する第4領域と、を有し、
前記第1領域、前記第2領域、前記第3領域および前記第4領域に対向する前記絶縁材の高さは、前記第1領域から前記第2領域に向かって低くなり、前記第2領域から前記第3領域に向かって高くなり、前記第3領域から前記第4領域に向かって低くなる、半導体装置。 - 前記第1領域に対向する前記絶縁材は、前記第1領域の中心部から外周部にかけて徐々に低くなり、
前記第3領域に対向する前記絶縁材は、前記第3領域の中心部から前記第2領域側および前記第4領域側の端部にかけて徐々に低くなる、請求項1に記載の半導体装置。 - 前記第1領域および前記第3領域に対向する前記絶縁材は、前記第2領域および前記第4領域に対向する前記絶縁材よりも高い、請求項1に記載の半導体装置。
- 前記第1領域および前記第3領域は、前記バンプが設けられる領域である、請求項3に記載の半導体装置。
- 前記第1領域および前記第3領域は、電気信号が通過する前記バンプが設けられる領域である、請求項3記載の半導体装置。
- 前記配線基板は、前記絶縁材から前記半導体チップの外周部に向けて突出し、上面の高さが前記パッドの高さ以上である突出部をさらに有する、請求項2から請求項5のいずれか一項に記載の半導体装置。
- 前記半導体チップに対向する前記絶縁材の高さの最大値は、前記パッドの高さ以下である、請求項2から請求項6のいずれか一項に記載の半導体装置。
- 前記第1領域に対向する前記絶縁材は、前記第1領域の中心部から外周部にかけて徐々に高くなり、
前記第3領域に対向する前記絶縁材は、前記第3領域の中心部から前記第2領域側および前記第4領域側の端部にかけて徐々に高くなる、請求項1に記載の半導体装置。 - 前記絶縁材は、前記配線基板との接続時における前記半導体チップの反りに応じた高さになるように設けられる、請求項8に記載の半導体装置。
- 前記半導体チップに対向する前記絶縁材の高さの最大値は、前記パッドの高さより大きい、請求項8または請求項9に記載の半導体装置。
- 前記絶縁材は、該絶縁材から前記絶縁基板を露出させる開口部を有しない、請求項1から請求項10のいずれか一項に記載の半導体装置。
- 前記パッドの周囲における前記絶縁材の高さは、略一定である、請求項1から請求項11のいずれか一項に記載の半導体装置。
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