JP7332342B2 - 集積チップおよびその製造方法 - Google Patents
集積チップおよびその製造方法 Download PDFInfo
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- JP7332342B2 JP7332342B2 JP2019099457A JP2019099457A JP7332342B2 JP 7332342 B2 JP7332342 B2 JP 7332342B2 JP 2019099457 A JP2019099457 A JP 2019099457A JP 2019099457 A JP2019099457 A JP 2019099457A JP 7332342 B2 JP7332342 B2 JP 7332342B2
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- metal wiring
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- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
ことを可能とする小さいサイズ(例えば約2.5um以下)を持つことができる。ある実施形態では、半導体基板502を薄くする前に、ILD構造108を接着材料によりキャリア基板(図示せず)に接続することができる。キャリア基板は、薄化および後続の製造工程時に支持を提供するものである。半導体基板502は、エッチングプロセスおよび/または半導体基板502の裏面側502bを機械研磨することによって、薄化することができる。ある実施形態では、基板の厚さを約700umの第1の厚さt1から、約1μmからμmから10μmまでの範囲にある第2の厚さt2に減らす。
102、502…半導体基板
102b、502b…半導体基板の裏面側
102f、502f…半導体基板の前面側
104…半導体素子
104g…ゲート電極層
104e…ゲート誘電体層
104s…ソース領域
104d…ドレイン領域
106…金属配線層
107a、107b、107c、407、407a、407a’、407b、407b’、407c、407c’…金属ワイヤ
108、410a、410b…レベル間誘電体(ILD)構造
108a、108b、108c、108d…ILD層
109a…コンタクト
109b、109c…金属ビア
110…裏面側基板貫通ビア
112…導電性ボンドパッド
112b…導電性ボンドパッドの裏面側
112f…導電性ボンドパッドの前面側
114、204…誘電体層
116、210、212…保護層
118…アンダーバンプメタラジー(UBM)層
118a、118b…金属層
120…導電性バンプ
202…高誘電率誘電体層
206…バッファ層
208、1002…BTSVライナー
302…第1の方向
304…第2の方向
402a…第1の半導体ダイ
402b…第2の半導体ダイ
404…接着層
405…アイソレーション構造405
406a…第1の半導体基板
406b…第2の半導体基板
408a、408b…金属配線層
409、409a、409a’、409b、409b’、409c、409c’…コンタクト/ビア
412…誘電体貫通ビア(TDV)
902…裏面側基板貫通ビアの開口
904…エッチャント
906…マスキング層
1004…導電材料
1102…線
1104…平面
1302…UBM開口
300…上面図
500、600、700、800、900、1000、1100、1200、1300、1400、1500…断面図
1600…方法
1602、1604、1606、1608、1610、1612、1614、1616、1618、1620、1622、1624、1626…動作
wPad、wBTSV…幅
t、t1、t2…厚さ
Claims (9)
- 集積チップであって、
基板(406b)の前面側に沿って配置されたレベル間誘電体(ILD)構造(410b)内に配されている複数の金属配線層と、
前記基板の裏面側に沿って配された誘電体層と、
前記誘電体層の上に配された導電性ボンドパッドと、
前記複数の金属配線層のうちの1つの金属配線層から、前記基板および前記誘電体層を貫き、前記導電性ボンドパッドまで延伸する裏面側基板貫通ビア(BTSV)(110)と、
第2基板(406а)であり、前記第2基板(406а)の裏面側を、前記レベル間誘電体(ILD)構造(410b)を介して前記基板(406b)の前面側に結合されている前記第2基板(406а)と、
前記第2基板(406а)の前面に沿って配置された第2レベル間誘電体(ILD)構造(410а)内に配置されている複数の第2配線層と、
前記複数の金属配線層から、前記第2基板(406а)を介して、前記複数の第2配線層(407b)のうちの1つの配線層まで延びて、前記複数の金属配線層と前記複数の第2配線層とを接続する誘電体貫通ビア(412)とを備え、
前記誘電体貫通ビア(412)の幅は前記裏面側基板貫通ビア(110)の幅より広く、
前記導電性ボンドパッドは、第1の方向に延びる第1のセグメントと、前記第1の方向と垂直な第2の方向で、前記第1のセグメントの第1の側壁から外側に伸びる第2のセグメントとを有し、
前記BTSVは、前記第1の方向に沿う方向で、前記第2のセグメントから第1距離を離間した第1の位置で、前記第1のセグメントの下に設けられ、
アンダーバンプメタラジー(UBM)層は、前記第2の方向に沿う方向で、前記第1のセグメントから第2の距離を離間した第2の位置で、前記第2のセグメントの上に設けられる集積チップ。 - 前記基板の前記裏面側に接触する高誘電率誘電体層を備え、
前記高誘電率誘電体層は、前記誘電体層と前記基板との間に垂直に配され、
前記高誘電率誘電体層は、前記基板に面する側の面が前記基板とは反対側の面より粗い
請求項1に記載の集積チップ。 - 前記BTSVが、前記複数の金属配線層のうちの前記1つの金属配線層と前記導電性ボンドパッドとの間で連続して延伸する平滑な側壁を有する、請求項1または2に記載の集積チップ。
- 前記複数の金属配線層が、第1の金属配線ワイヤと、前記第1の金属配線ワイヤを介して前記基板と離間し、前記第1の金属配線ワイヤより厚い第2の金属配線ワイヤとを含み、
前記BTSVが前記第1の金属配線ワイヤと接触している、
請求項1または2に記載の集積チップ。 - 前記導電性ボンドパッドの上に配置された導電性バンプであり、前記導電性ボンドパッドが前記BTSVの上から導電性バンプの下まで延びる実質的に平面状の下面を有する、前記導電性バンプと、
前記誘電体層および前記導電性ボンドパッドの上に配された保護層と、を備え、
前記UBM層は、前記保護層の上から前記保護層中の開口内まで延伸し、
前記UBM層は、前記導電性ボンドパッドと前記導電性バンプとの間に位置する、
請求項1に記載の集積チップ。 - 前記BTSVを前記基板から離間させるように前記BTSVの側壁に沿って配されたBTSVライナーを備える
請求項1~5のいずれか一項に記載の集積チップ。 - 前記複数の金属配線層のうちの前記1つの金属配線層と前記導電性ボンドパッドとの間に、前記BTSVに並列に配される1つまたは複数の追加のBTSVを備える
請求項1~6のいずれか一項に記載の集積チップ。 - 前記誘電体層を介して前記基板と離間しているバッファ層を備え、
前記BTSVが前記基板と反対の方を向く上面を有し、
該上面が、前記基板と反対の方を向く前記誘電体層の上面、または前記基板と反対の方を向く前記バッファ層の上面のいずれかと同一平面上にある、
請求項1~7のいずれか一項に記載の集積チップ。 - 前記BTSVが、前記複数の金属配線層のうちの前記1つの金属配線層と前記導電性ボンドパッドとの間にて連続して延伸するテーパー状の側壁を有する、
請求項1~8のいずれか一項に記載の集積チップ。
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US10566288B2 (en) | 2020-02-18 |
KR20170063345A (ko) | 2017-06-08 |
US20200161244A1 (en) | 2020-05-21 |
US20170154850A1 (en) | 2017-06-01 |
US11107767B2 (en) | 2021-08-31 |
US20190067200A1 (en) | 2019-02-28 |
US20210351134A1 (en) | 2021-11-11 |
CN106816426A (zh) | 2017-06-09 |
TWI628758B (zh) | 2018-07-01 |
TW201729364A (zh) | 2017-08-16 |
DE102016116094A1 (de) | 2017-06-01 |
JP2017103458A (ja) | 2017-06-08 |
KR101929620B1 (ko) | 2018-12-14 |
JP2019135799A (ja) | 2019-08-15 |
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US10147682B2 (en) | 2018-12-04 |
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