JP5818904B2 - ウェーハスタック内の層厚さ及び欠陥を測定する測定デバイス及び方法 - Google Patents
ウェーハスタック内の層厚さ及び欠陥を測定する測定デバイス及び方法 Download PDFInfo
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Description
- 特に接着剤、有利には一時的接着剤でウェーハスタックを少なくとも部分的に塗装する塗装モジュールと、
- ウェーハスタックのウェーハ層を接続する接合モジュールと、
- 検査モジュール内の本発明による測定手段と、
- 特に1つ又は複数のロボットアームを備え、ウェーハ処理システム内の各ウェーハスタックを1つのモジュールから次のモジュールへ輸送する取扱い手段と、
- 任意選択で、溶剤を除去する加熱手段と
を一緒に使用することが特に有利である。
2 接続層
3 ウェーハ
4 空隙
5 筐体
6 膜
7 液体
8 ウェーハスタック
9 送信器
10 受信器
11 測定手段
12 マウント
13 バンプ
14 コンタクト
15 遷移部
16 マウント表面
17 真空経路
18 遷移部
19 干渉計
20 測定信号
21 監視領域
22 化学物質
23 電子構成要素
24 層
25 供給線
26 膜壁
27 液体リザーバ
28 縁部区間接着剤
R 基準平面
d1、d1' 層厚さ
d2、d2' 層厚さ
d3、d3' 層厚さ
H 距離
B 縁部区間
Claims (16)
- 複数の層が接合されたウェーハスタック(8)であって、接合処理後かつ研削処理前の前記ウェーハスタック(8)の1つ又は複数の層の層厚さ及び空隙を、前記ウェーハスタック(8)上に分散された複数の測定点上で測定及び/又は取得する測定手段であって、
電磁波又は超音波の形の信号を放出するように、前記ウェーハスタック(8)に対して移動可能な送信器(9)と、
前記送信器(9)によって送られて前記ウェーハスタック(8)上の前記複数の測定点で反射された信号を受け取るために前記ウェーハスタック(8)を走査するように、前記送信器(9)とともに前記ウェーハスタック(8)に対して移動可能な受信器(10)と、
前記受信器によって受け取った前記信号を評価する評価ユニットであって、前記ウェーハスタック(8)の層間の少なくとも2つの遷移部(15、18)によって反射された信号を前記評価ユニットによって区別することができ、互いに対する距離及び/又は基準平面(R)までの距離を判定することができ、前記基準平面(R)に対して平行な前記ウェーハスタック(8)及び/又は前記測定手段(11)の移動、したがって前記基準平面(R)に沿った各測定点の位置を検出することができ、前記1つ又は複数の層の層厚さの均一性の評価結果を含む前記信号の評価結果に基づいて、前記ウェーハスタック(8)に対する処理をさらに行うか又は前記ウェーハスタック(8)を処理チェーンから除去するかを決定する、評価ユニットと、
を備える測定手段。 - 前記測定手段(11)をウェーハ処理デバイス内で使用することができる、請求項1に記載の測定手段。
- 前記測定手段(11)をウェーハ処理デバイス内で、インラインで使用することができる、請求項1又は2に記載の測定手段。
- 前記ウェーハスタック(8)に機械的に作用することなく、前記測定手段(11)を機能させる、請求項1から3のいずれか一項に記載の測定手段。
- 前記ウェーハスタック(8)に機械的に作用することなく、前記ウェーハスタック(8)から距離(H)を空けて、前記測定手段(11)を機能させる、請求項1から4のいずれか一項に記載の測定手段。
- 前記送信器(9)及び前記受信器(10)を同時に使用して層厚さ及び空隙を検出することができる、請求項1から5のいずれか一項に記載の測定手段。
- 層分解能が、10μm未満である、請求項6に記載の測定手段。
- 5mm未満の距離を空けて隣接する測定点を前記測定手段(11)によって測定することができる、請求項1から7のいずれか一項に記載の測定手段。
- 前記測定手段が、研削処理又は分離処理中のインシトゥ測定にも適用可能である、請求項1から8のいずれか一項に記載の測定手段。
- マウント(12)であって、1つのマウント表面(16)上に前記ウェーハスタック(8)を収容及び固定し、固定された前記ウェーハスタック(8)を前記基準平面(R)に対して平行に動かすマウント(12)の前記1つのマウント表面(16)までの距離を、前記測定点のうちの少なくとも1つの上で測定する干渉計を備える、請求項1から9のいずれか一項に記載の測定手段。
- 前記干渉計は、前記送信器(9)及び前記受信器(10)に機械的に結合又は固定された干渉計である、請求項10に記載の測定手段。
- 前記干渉計は、白色光干渉計である、請求項10又は11に記載の測定手段。
- 前記送信器(9)及び前記受信器(10)が筐体(5)内に位置する、請求項1から12のいずれか一項に記載の測定手段。
- 複数の層が接合されたウェーハスタック(8)に対して、前記ウェーハスタック(8)の一時的接合及び分離を含む処理を行うウェーハ処理デバイスであって、
前記ウェーハスタック(8)の1つ又は複数の層の層厚さ及び空隙を、接合処理後かつ研削処理前の前記ウェーハスタック(8)上に分散された複数の測定点上で測定及び/又は取得する測定手段を備え、前記測定手段が、
電磁波又は超音波の形の信号を放出するように、前記ウェーハスタック(8)に対して移動可能な送信器(9)と、
前記送信器(9)によって送られて前記ウェーハスタック(8)上の前記複数の測定点で反射された信号を受け取るために前記ウェーハスタック(8)を走査するように、前記送信器(9)とともに前記ウェーハスタック(8)に対して移動可能な受信器(10)と、
前記受信器によって受け取った前記信号を評価する評価ユニットであって、前記ウェーハスタック(8)の層間の少なくとも2つの遷移部(15、18)によって反射された信号を前記評価ユニットによって区別することができ、互いに対する距離及び/又は基準平面(R)までの距離を判定することができ、前記基準平面(R)に対して平行な前記ウェーハスタック(8)及び/又は前記測定手段(11)の移動、したがって前記基準平面(R)に沿った各測定点の位置を検出することができ、前記1つ又は複数の層の層厚さの均一性の評価結果を含む前記信号の評価結果に基づいて、前記ウェーハスタック(8)に対する処理をさらに行うか又は前記ウェーハスタック(8)を処理チェーンから除去するかを決定する、評価ユニットと、
マウント(12)であって、1つのマウント表面(16)上に前記ウェーハスタック(8)を収容及び固定し、前記固定されたウェーハスタック(8)を前記基準平面(R)に対して平行に動かすマウント(12)と、を備える、
ウェーハ処理デバイス。 - 前記ウェーハスタック(8)を少なくとも部分的に塗装する塗装モジュールと、検査モジュールと、接合モジュールとを備えるインラインシステムである、請求項14に記載のウェーハ処理デバイス。
- 複数の層が接合されたウェーハスタック(8)の1つ又は複数の層の層厚さ及び空隙を、接合処理後かつ研削処理前の前記ウェーハスタック(8)上に分散された複数の測定点上で測定及び/又は取得する方法であって、以下のシーケンスで、
前記ウェーハスタック(8)の前記層の前記層厚さ及び空隙を、接合処理後かつ研削処理前の前記ウェーハスタック(8)の1つの平坦な側面に対して前記測定点で測定及び/又は取得するように測定手段を構成するステップと、
前記測定手段の送信器によって、電磁波又は超音波の形の信号を放出し、前記測定手段の受信器によって前記ウェーハスタック(8)を走査して、前記ウェーハスタック(8)上の前記複数の測定点によって反射された前記信号を受け取るステップと、
評価ユニットによって、前記受信器によって受け取った前記信号を評価するステップであって、前記ウェーハスタック(8)の層間の少なくとも2つの遷移部によって反射された信号を前記評価ユニットによって区別し、互いに対する距離及び/又は基準平面(R)までの距離を判定し、前記基準平面(R)に対して平行な前記ウェーハスタック(8)及び/又は前記測定手段の移動、したがって前記基準平面に沿った各測定点の位置を検出することができ、前記1つ又は複数の層の層厚さの均一性の評価結果を含む前記信号の評価結果に基づいて、前記ウェーハスタック(8)に対する処理をさらに行うか又は前記ウェーハスタック(8)を処理チェーンから除去するかを決定する、評価するステップと、を含む、方法。
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CN106996759B (zh) | 2019-10-01 |
CN103221813A (zh) | 2013-07-24 |
KR20170120710A (ko) | 2017-10-31 |
TWI511219B (zh) | 2015-12-01 |
KR20160021301A (ko) | 2016-02-24 |
WO2012062343A1 (de) | 2012-05-18 |
SG188414A1 (en) | 2013-04-30 |
CN103221813B (zh) | 2017-05-17 |
EP3514529B1 (de) | 2023-03-15 |
US20160172254A1 (en) | 2016-06-16 |
US10008424B2 (en) | 2018-06-26 |
KR101895183B1 (ko) | 2018-09-04 |
CN106996759A (zh) | 2017-08-01 |
KR20130139251A (ko) | 2013-12-20 |
EP3514529A1 (de) | 2019-07-24 |
US10109538B2 (en) | 2018-10-23 |
JP2014500952A (ja) | 2014-01-16 |
EP3035047A1 (de) | 2016-06-22 |
EP3035047B1 (de) | 2019-03-20 |
EP2603790A1 (de) | 2013-06-19 |
EP2603790B1 (de) | 2016-03-30 |
US20130228015A1 (en) | 2013-09-05 |
TW201232689A (en) | 2012-08-01 |
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