JP2018160522A - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP2018160522A JP2018160522A JP2017056234A JP2017056234A JP2018160522A JP 2018160522 A JP2018160522 A JP 2018160522A JP 2017056234 A JP2017056234 A JP 2017056234A JP 2017056234 A JP2017056234 A JP 2017056234A JP 2018160522 A JP2018160522 A JP 2018160522A
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Abstract
【課題】パッケージのクラック、半導体チップの割れ、外観不良を抑制することができる半導体装置を提供する。
【解決手段】本実施形態による半導体装置は、配線基板と、第1半導体チップと、第2半導体チップと、樹脂とを備える。第1半導体チップは、第1面と、該第1面の反対側にある第2面と、第1面の外縁と第2面の外縁との間にある第1側面とを有し、配線基板上方に設けられている。第1側面は劈開面となっている。第2半導体チップは、第3面と、該第3面の反対側にある第4面と、第3面の外縁と第4面の外縁との間にある第2側面と、第3面と第4面との間の少なくとも半導体基板を貫通する貫通電極とを有する。第2側面は、劈開面および改質面となっている。第2半導体チップは、配線基板と第1半導体チップとの間に設けられている。樹脂は、第1および第2半導体チップの周囲に設けられている。
【選択図】図2
Description
図1は、第1実施形態による半導体装置の構成例を示す断面図である。半導体装置1は、例えば、NAND型EEPROM(Electrically Erasable and Programmable Read-Only-Memory) 等の半導体メモリである。この場合、第1半導体チップ10、第2半導体チップ20a〜20cは、例えば、メモリセルアレイを有する半導体メモリチップである。
まず、図3(A)に示すように、第1半導体ウェハ100上に半導体素子(図示せず)を形成する。半導体素子上には、層間絶縁膜および配線層101が設けられている。複数の第1半導体チップ10間にダイシングラインDLがあり、後述するように、このダイシングラインDLを切断することによって、第1半導体チップ10が個片化される。
次に、第2半導体チップ20a〜20cの製造方法について説明する。第2半導体チップ20b、20cの製造方法は、第2半導体チップ20aの製造方法と同じであり、あるいは、それから容易に想像できる。従って、第2半導体チップ20aの製造方法を説明し、第2半導体チップ20b、20cの製造方法の説明を省略する。
次に、第1半導体チップ10および第2半導体チップ20a〜20cを配線基板40上に積層する方法を説明する。
図14(A)および図14(B)は、第2実施形態による半導体装置の構成例を示す断面図である。第2実施形態による半導体装置2は、第3半導体チップ30と、金属バンプ85とをさらに備えている。第3半導体チップ30は、例えば、第1および第2半導体チップ10、20a〜20cを制御するNANDコントローラである。第2実施形態の半導体装置2のその他の構成は、第1実施形態の半導体装置1の対応する構成と同様でよい。
図20〜図30は、第1または第2実施形態の変形例による半導体装置の構成例を示す断面図である。
図31は、第3実施形態による半導体装置の構成の一例を示す断面図である。図32(A)〜図32(C)は、第3実施形態による第2半導体チップ20a〜20cの構成の一例を示す平面図である。
図35(A)は、第3実施形態の変形例1による第2半導体チップ20a〜20cの構成の一例を示す平面図である。尚、第2半導体チップ20cの第3面F3は、図32(A)に示すレイアウトと同様でよい。
図35(B)は、第3実施形態の変形例2による第2半導体チップ20a〜20cの構成の一例を示す平面図である。尚、第2半導体チップ20cの第3面F3は、図32(A)に示すレイアウトと同様でよい。
Claims (6)
- 配線基板と、
第1面と、該第1面の反対側にある第2面と、前記第1面の外縁と前記第2面の外縁との間にある第1側面とを有する第1半導体チップであって、前記第1側面が劈開面となっており、前記配線基板上方に設けられた第1半導体チップと、
前記第3面と、該第3面の反対側にある第4面と、前記第3面の外縁と前記第4面の外縁との間にある第2側面と、前記第3面と前記第4面との間の少なくとも半導体基板を貫通する貫通電極とを有する第2半導体チップであって、前記第2側面が劈開面および改質面となっており、前記配線基板と前記第1半導体チップとの間に設けられた第2半導体チップと、
前記第1および第2半導体チップの周囲に設けられた樹脂とを備えた半導体装置。 - 前記第2半導体チップは、前記貫通電極と前記第1半導体チップまたは他の第2半導体チップとを電気的に接続する第1金属バンプをさらに有する、請求項1に記載の半導体装置。
- 前記第5面と、該第5面の反対側にある第6面と、前記第5面の外縁と前記第6面の外縁との間にある第3側面とを有する第3半導体チップであって、前記配線基板と前記第2半導体チップとの間に設けられた第3半導体チップをさらに備えた、請求項1または請求項2に記載の半導体装置。
- 前記第1半導体チップと第2半導体チップ間に接着剤を備えた、請求項1から請求項3のいずれか一項に記載の半導体装置。
- 前記第2半導体チップの配線基板側に位置する第3面側に電極パッドを有し、前記第1半導体チップと前記第2半導体チップの間に接着剤を有し、前記電極パッドに対向する第4面の接着剤の密度が、電極パッドが配置されていない第3面に対向する第4面の個所に比べて高いことを特徴とする、請求項1から請求項4のいずれか一項に記載の半導体装置。
- 第1半導体ウェハのダイシングラインにレーザを照射して該第1半導体ウェハ内に改質層を形成し、
前記第1半導体ウェハを前記改質層よりも深い位置まで研磨し、
前記第1半導体ウェハにテープを貼付して該テープを引っ張ることにより前記第1半導体ウェハを第1半導体チップに個片化し、
第2半導体ウェハに支持基板を貼り付け、前記第2半導体ウェハを研磨し、少なくとも第2半導体ウェハの半導体基板を貫通する貫通電極を形成してから前記支持基板を剥離し、
前記第2半導体ウェハのダイシングラインにレーザを照射して該第2半導体ウェハ内に改質層を形成し、
前記第2半導体ウェハにテープを貼付して該テープを引っ張ることにより前記第2半導体ウェハを第2半導体チップに個片化し、
配線基板上に前記第2半導体チップおよび前記第1半導体チップをこの順番で積層し、
積層された前記第1および第2半導体チップを樹脂で被覆する、ことを具備した、半導体装置の製造方法。
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JP2020136463A (ja) * | 2019-02-19 | 2020-08-31 | 株式会社ディスコ | ウエーハの加工方法 |
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