JP5600642B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP5600642B2 JP5600642B2 JP2011134003A JP2011134003A JP5600642B2 JP 5600642 B2 JP5600642 B2 JP 5600642B2 JP 2011134003 A JP2011134003 A JP 2011134003A JP 2011134003 A JP2011134003 A JP 2011134003A JP 5600642 B2 JP5600642 B2 JP 5600642B2
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- semiconductor
- semiconductor chip
- bump electrode
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- chp1
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Description
<本発明の概要>
一般的なCtoWの場合、チップ状態のままプロセス処理を行うには、半導体チップを半導体ウェハに接続した後に、半導体チップと半導体ウェハ間に樹脂等を注入することで、半導体チップと半導体ウェハの固定強化や、デバイス面や半導体チップと半導体ウェハをつなぐバンプ電極等の保護を行う必要がある。しかしながら、半導体チップと半導体ウェハ間のギャップが狭い場合、半導体チップが平面上に複数レイアウトされていると、半導体チップと半導体ウェハ間のギャップに均一に隙間なく樹脂を注入することは困難となる。また、プロセス処理や接続時の加熱による、半導体チップと樹脂の熱膨張係数差およびボイド等から生じる表面凹凸の発生やチップ傾斜等の問題が避けられない。さらに、半導体チップの薄基板加工時に、半導体チップ周辺に付着している余分な樹脂を除去しなければ精度の高い加工を行うことができなかった。
以下に、本実施の形態1における半導体装置の製造方法について、図面を参照しながら説明する。実施の形態1においては、まず初めに半導体ウェハの検査方法に関して説明する。半導体ウェハの検査は、一般的な半導体ウェハ検査装置(ウェハプローバ)を用いて、ウェハレベルで行う。ウェハ検査によって良品チップと不良品チップを判別するには、予めチップ領域に良品検査ができるような回路および電極を形成しておく必要がある。非接触でウェハ検査をする場合は、検査専用の電極を形成する必要はない。また、半導体ウェハ上に良品・不良品のマーキングを行っても良いが、マッピングデータから半導体ウェハ上の良品・不良品を判別する方法が望ましい。
次に、本実施の形態2における半導体装置の製造方法について、図面を参照しながら説明する。なお、前記実施の形態1に記載され、本実施の形態2に未記載の事項は、特段の事情がない限り、本実施の形態2にも適用することができる。
前記実施の形態1では、半導体チップCHP1にバンプ電極BMPおよび凸形状部VEUを形成し、半導体ウェハ1Wにバンプ電極受入部BRUおよび凹形状部CAUを形成する例について説明した。本実施の形態3では、半導体チップCHP1にバンプ電極BMPおよび凹形状部CAUを形成し、半導体ウェハ1Wにバンプ電極受入部BRUおよび凸形状部VEUを形成する例について説明する。
前記実施の形態1〜3では、複数の良品チップを半導体ウェハに接続して処理する場合(以下、CtoWという(Chip to Wafer))について説明したが、本実施の形態4では、単体の良品チップを別の半導体チップに接続して処理する場合(以下、CtoCという(Chip to Chip))に本発明の技術的思想を適用する例について説明する。
1W 半導体ウェハ
BMP バンプ電極
BMP2 バンプ電極
BMP3 バンプ電極
BMP4 バンプ電極
BRU バンプ電極受入部
BRU2 バンプ電極受入部
BRU3 バンプ電極受入部
CAU 凹形状部
CAUa 凹形状部
CAUb 凹形状部
CAU2 凹形状部
CAU2a 凹形状部
CAU2b 凹形状部
CAU3 凹形状部
CHP 半導体チップ
CHP1 半導体チップ
CHP2 半導体チップ
CHP3 半導体チップ
DIT 溝
DIT2 溝
DR デバイス形成領域
FL 充填材
FR レジスト膜
IL 絶縁膜
IPCHP インタポーザチップ
LCHP 積層半導体チップ
LCHP2 積層半導体チップ
PE 台座部
PF めっき膜
PF2 めっき膜
PLG1 プラグ
PLG2 プラグ
RFM 補強材
SL シード層
TSV 貫通電極
VEU 凸形状部
VEUa 凸形状部
VEUb 凸形状部
VEU2 凸形状部
VEU2a 凸形状部
VEU2b 凸形状部
VEU3 凸形状部
Claims (10)
- 複数の半導体チップが積層された半導体装置の製造方法であって、
(a)第1半導体チップのバンプ電極形成領域を囲む第1接続部によって、半導体ウェハの第1チップ領域上に前記第1半導体チップを搭載して固定する工程と、
(b)第2半導体チップのバンプ電極形成領域を囲む第2接続部によって、前記半導体ウェハの前記第1チップ領域に隣接する第2チップ領域上に前記第2半導体チップを搭載して固定する工程と、
(c)少なくとも、前記第1半導体チップと前記第2半導体チップとの間にある隙間の一部に充填材を埋め込む工程と、を備え、
前記(c)工程は、めっき法により、金属からなる前記充填材で、少なくとも前記隙間の一部を埋め込むことを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法であって、
前記充填材は、金属または樹脂から構成されていることを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法であって、
前記第1接続部は、前記第1半導体チップの接続面と前記第1チップ領域の表面のうちの一方の面に形成された凸部を、他方の面に形成された凹部に挿入することにより形成され、
前記第2接続部は、前記第2半導体チップの接続面と前記第2チップ領域の表面のうちの一方の面に形成された凸部を、他方の面に形成された凹部に挿入することにより形成されていることを特徴とする半導体装置の製造方法。 - 請求項3に記載の半導体装置の製造方法であって、
前記(a)工程および前記(b)工程を実施する前に、
(1)前記第1半導体チップのバンプ電極形成領域に形成された複数の第1バンプ電極と、前記複数の第1バンプ電極を囲む第1凸形状部と、を有する前記第1半導体チップを用意する工程と、
(2)前記第2半導体チップのバンプ電極形成領域に形成された複数の第2バンプ電極と、前記複数の第2バンプ電極を囲む第2凸形状部と、を有する前記第2半導体チップを用意する工程と、
(3)前記第1チップ領域と、前記第1チップ領域に隣接する第2チップ領域とを有する半導体ウェハを用意する工程と、
(4)前記半導体ウェハの前記第1チップ領域の表面に、凹形状をした複数の第1バンプ電極受入部と、前記複数の第1バンプ電極受入部を囲む第1凹形状部とを形成し、
前記半導体ウェハの前記第2チップ領域の表面に、凹形状をした複数の第2バンプ電極受入部と、前記複数の第2バンプ電極受入部を囲む第2凹形状部とを形成する工程と、を有し、
前記(a)工程は、前記複数の第1バンプ電極のそれぞれを、前記複数の第1バンプ電極受入部のそれぞれに挿入するとともに、前記第1凸形状部を前記第1凹形状部に挿入し、
前記(b)工程は、前記複数の第2バンプ電極のそれぞれを、前記複数の第2バンプ電極受入部のそれぞれに挿入するとともに、前記第2凸形状部を前記第2凹形状部に挿入することを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法であって、さらに、
(d)前記(c)工程後、前記半導体ウェハと接続する前記第1半導体チップの下面とは反対側の上面と、前記半導体ウェハと接続する前記第2半導体チップの下面とは反対側の上面とを、研磨あるいはエッチングする工程を有することを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法であって、さらに、
(e)前記半導体ウェハを貫通する複数の貫通電極を形成する工程を有することを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法であって、さらに、
(f)前記半導体ウェハを切断するとともに、少なくとも一部に前記充填材が埋め込まれた前記隙間も切断する工程を有することを特徴とする半導体装置の製造方法。 - 請求項7に記載の半導体装置の製造方法であって、
前記(f)工程は、前記第1接続部および前記第2接続部も除去することを特徴とする半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法であって、さらに、
(g)前記半導体ウェハを切断することで形成された基板チップと、前記基板チップ上に搭載された前記第1半導体チップを含む積層半導体チップを形成した後、
前記基板チップと前記第1半導体チップとの間の隙間に樹脂を埋め込む工程を有することを特徴とする半導体装置の製造方法。 - 請求項7に記載の半導体装置の製造方法であって、
前記(f)工程は、前記第1接続部および前記第2接続部を残すことを特徴とする半導体装置の製造方法。
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JP6377894B2 (ja) * | 2013-09-03 | 2018-08-22 | 信越化学工業株式会社 | 半導体装置の製造方法、積層型半導体装置の製造方法、及び封止後積層型半導体装置の製造方法 |
US11495562B2 (en) * | 2019-12-27 | 2022-11-08 | Attollo Engineering, LLC | Alignment features for hybridized image sensor |
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JP2005079070A (ja) * | 2003-09-04 | 2005-03-24 | Canon Inc | 基板間電極接合方法及び構造体 |
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US8367471B2 (en) * | 2007-06-15 | 2013-02-05 | Micron Technology, Inc. | Semiconductor assemblies, stacked semiconductor devices, and methods of manufacturing semiconductor assemblies and stacked semiconductor devices |
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