JP2016012693A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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Abstract
【解決手段】基板11と、第1パッド71と、半導体パッケージ12と、第2パッド72とを備える。基板11は、第1面11aと、第1面11aとは反対側に位置した第2面11bとを有する。第1パッド71は、基板11の第1面11aに設けられている。半導体パッケージ12は、コントローラ31と、コントローラ31に電気的に接続されて第2パッド72に載せられた半田ボール61とを有する。第2パッド73は、基板11の第2面11bに設けられ、第2パッド72に電気的に接続されている。
【選択図】図6
Description
本明細書では、いくつかの要素に複数の表現の例を付している。なおこれら表現の例はあくまで例示であり、上記要素が他の表現で表現されることを否定するものではない。また、複数の表現が付されていない要素についても、別の表現で表現されてもよい。
図1乃至図11は、第1実施形態に係る半導体装置1を示す。半導体装置1は、「半導体モジュール」及び「半導体記憶装置」の其々一例である。本実施形態に係る半導体装置1は、例えばSSD(Solid State Drive)であるが、これに限られるものではない。
本実施形態に係る半導体パッケージ12は、SiP(System in Package)タイプのモジュールであり、複数の半導体チップが1つのパッケージ内に封止されている。さらに言えば、半導体パッケージ12は、いわゆるBGA−SSD(Ball Grid Array - Solid State Drive)であり、複数の半導体メモリとコントローラとが一つのBGAタイプのパッケージとして一体に構成されている。
まず、ステップST1において、コントローラ31では、半導体メモリ32の単体テストを実行するか否かが判定される。半導体メモリ32の単体テストを実行する場合(ステップST1:YES)、ステップST2に進む。半導体メモリ32の単体テストを実行しない場合(ステップST1:NO)、ステップST5に進む。
図12は、第2実施形態に係る半導体装置1の一例を示す。図2において、(a)は平面図、(b)は下面図、(c)は側面図である。本実施形態に係る基板11の複数の第3パッド73の各々は、角部に丸みを有した略矩形状に形成されている。このような構成によっても、第1実施形態と略同じ機能を実現することができる。
図13は、第3実施形態に係る半導体装置1の一例を示す。本実施形態に係る半導体装置1は、ラベル92に代えて、金属製の放熱板95を有する。放熱板95は、例えばソルダーレジスト91よりも熱伝導性が高い。放熱板95は、例えば複数の第3パッド73を一体に覆うとともに、第3パッド73に熱的に接続されている。このような構成によれば、第2半田ボール62、第2パッド72、接続部74、及び第3パッド73を介して、コントローラ31と放熱板95とが熱的に比較的強固に接続可能であるため、半導体装置1の放熱性をさらに高めることができる。
Claims (15)
- 第1面と、該第1面とは反対側に位置した第2面とを有した基板と、
前記基板に設けられ、ホスト装置との間で信号が流れるインターフェース部と、
前記基板の第1面に設けられ、前記インターフェース部に電気的に接続された複数の第1パッドと、
前記基板の第1面に設けられ、前記インターフェース部とは電気的に絶縁された複数の第2パッドと、
半導体メモリと、該半導体メモリを制御するコントローラと、前記半導体メモリ及び前記コントローラを一体に封止した封止部と、前記コントローラに電気的に接続されて前記第1パッドに載せられた複数の第1半田ボールと、前記コントローラに電気的に接続されて前記第2パッドに載せられた複数の第2半田ボールとを有した半導体パッケージと、
前記基板の第2面に設けられ、前記複数の第2パッドに其々電気的に接続された複数の第3パッドと、
を備えた半導体装置。 - 請求項1の記載において、
前記基板は、片面実装基板であり、前記第2面は、非部品実装面である半導体装置。 - 請求項1または請求項2の記載において、
前記コントローラは、前記複数の第3パッドの少なくとも一つから入力されるテストコマンドに基づいて動作可能である半導体装置。 - 請求項1乃至請求項3のいずれかの記載において、
前記複数の第3パッドは、前記基板において前記半導体パッケージに覆われる領域の裏側に位置した半導体装置。 - 請求項1乃至請求項4のいずれかの記載において、
前記第3パッドの数は、前記第1パッドの数よりも多い半導体装置。 - 請求項1乃至請求項5のいずれかの記載において、
前記複数の第3パッドの配置は、前記複数の第2パッドの配置に対応した半導体装置。 - 請求項1乃至請求項6のいずれかの記載において、
前記コントローラは、前記インターフェース部に接続されるホストインターフェース部と、前記半導体メモリに接続されるメモリインターフェース部とを有し、
前記複数の第3パッドの少なくとも一つは、前記ホストインターフェース部を介さずに前記コントローラの内部で前記メモリインターフェース部に電気的に接続可能である半導体装置。 - 請求項1乃至請求項6のいずれかの記載において、
前記コントローラは、CPUと、前記半導体メモリに電気的に接続されるメモリインターフェース部とを有し、
前記複数の第3パッドの少なくとも一つは、前記CPUを介さずに前記コントローラの内部で前記メモリインターフェース部に電気的に接続可能である半導体装置。 - 請求項1乃至請求項8のいずれかの記載において、
前記複数の第3パッドは、絶縁層によって覆われた半導体装置。 - 請求項1乃至請求項8のいずれかの記載において、
前記複数の第3パッドを一体に覆うシートをさらに備えた半導体装置。 - 第1面と、該第1面とは反対側に位置した第2面とを有した基板と、
前記基板に設けられ、ホスト装置との間で信号が流れるインターフェース部と、
前記基板の第1面に設けられ、前記インターフェース部とは電気的に絶縁された第1パッドと、
コントローラと、該コントローラに電気的に接続されて前記第1パッドに載せられた半田ボールとを有した半導体パッケージと、
前記基板の第2面に設けられ、前記第1パッドに電気的に接続された第2パッドと、
を備えた半導体装置。 - 請求項11の記載において、
前記コントローラは、前記第2パッドから入力されるテストコマンドに基づいて動作可能である半導体装置。 - 請求項11または請求項12の記載において、
前記第2パッドは、前記基板において前記半導体パッケージに覆われる領域の裏側に位置した半導体装置。 - 請求項11乃至請求項13のいずれかの記載において、
前記第2パッドを覆う絶縁部をさらに備えた半導体装置。 - 第1面と、該第1面とは反対側に位置した第2面とを有した基板と、
前記基板の第1面に設けられた第1パッドと、
コントローラと、該コントローラに電気的に接続されて前記第1パッドに載せられた半田ボールとを有した半導体パッケージと、
前記基板の第2面に設けられ、前記第1パッドに電気的に接続された第2パッドと、
を備えた半導体装置。
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