KR102717397B1 - 적층체의 제조 방법 및 기판의 제조 방법 - Google Patents
적층체의 제조 방법 및 기판의 제조 방법 Download PDFInfo
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Abstract
[해결수단] 이면을 가공해야 할 기판의 비가공면과 지지체를, 가접착재를 통해서 접합시키는 적층체의 제조 방법으로서, 상기 기판의 비가공면 및 상기 지지체 중, 어느 한쪽 또는 양쪽에 상기 가접착재를 적층하는 공정 (a)와, 접합 개시 전에 상기 기판과 상기 지지체를 미리 가열하는 공정 (b)와, 상기 기판과 상기 지지체를, 상기 가접착재를 통해서 접합하는 공정 (c)를 갖고, 상기 공정 (b)에 있어서, 상기 기판을 50℃ 이상 250℃ 이하의 온도로 가열하고, 상기 지지체를 50℃ 이상 250℃ 이하 또한 상기 기판과 다른 온도로 가열함과 함께, 상기 공정 (c)에서는, 미리 가열된 상기 기판의 온도와 상기 지지체의 온도가 다른 상태에서, 접합을 개시하는 것을 특징으로 하는 적층체의 제조 방법.
Description
도 2는 본 발명의 접합 전의 기판과 지지체의 가열을 실시하는 일례를 도시하는 구성도이다.
도 3은 본 발명의 접합 직후의 적층체의 일례를 나타내는 구성도이다.
2 : 가접착재
(A) : 제1 가접착재층
(B) : 제2 가접착재층
3 : 지지체
4 : 기판 설치 플레이트
5 : 지지체 설치 플레이트
Claims (9)
- 이면을 가공해야 할 기판의 비가공면과 지지체를, 가접착재를 통해서 접합시키는 적층체의 제조 방법으로서,
상기 가접착재로서, 적어도 상기 기판측에 위치하는 제1 가접착재층 (A)와, 해당 제1 가접착재층 (A)보다 상기 지지체측에 위치하는 제2 가접착재층 (B)의 2층 이상을 갖는 동시에, 상기 제1 가접착재층 (A)와 상기 제2 가접착재층 (B)의 용융 점도비 α/β가, 25℃에 있어서의 용융 점도비로 10 이하이고, 100℃ 이상 200℃ 이하에 있어서의 최저 용융 점도비로 100 이상인 가접착재를 사용하고,
상기 기판의 비가공면 및 상기 지지체 중, 어느 한쪽 또는 양쪽에 상기 가접착재를 적층하는 공정 (a)와,
접합 개시 전에 상기 기판과 상기 지지체를 미리 가열하는 공정 (b)와,
상기 기판과 상기 지지체를, 상기 가접착재를 통해서 접합하는 공정 (c)를 갖고,
상기 공정 (b)에 있어서, 상기 기판을 50℃ 이상 250℃ 이하의 온도로 가열하고, 상기 지지체를 50℃ 이상 250℃ 이하 또한 상기 기판과 다른 온도로 가열함과 함께, 상기 공정 (c)에서는, 미리 가열된 상기 기판의 온도와 상기 지지체의 온도가 다른 상태에서, 접합을 개시하는 것을 특징으로 하는 적층체의 제조 방법. - 제1항에 있어서, 상기 공정 (c)에서는, 상기 기판의 온도와 상기 지지체의 온도가 10℃ 이상 다른 상태에서 접합을 개시하는 것을 특징으로 하는 적층체의 제조 방법.
- 제1항 또는 제2항에 있어서, 상기 공정 (b)에 있어서, 상기 기판의 온도를 상기 지지체의 온도보다도 높게 하는 것을 특징으로 하는 적층체의 제조 방법.
- 제1항 또는 제2항에 있어서, 상기 공정 (a)에 있어서, 상기 제1 가접착재층 (A)와 상기 제2 가접착재층 (B)가 인접하도록 형성해서 상기 가접착재를 적층하는 것을 특징으로 하는 적층체의 제조 방법.
- 제1항 또는 제2항에 있어서, 상기 제2 가접착재층 (B)가 열경화성 수지를 포함하고, 해당 열경화성 수지를 경화해서 이루어지는 경화막의 동적 점탄성 측정에 의해 측정되는 탄성률이, 25℃에 있어서, 50㎫ 이상 1㎬ 이하인 가접착재를 사용하는 것을 특징으로 하는 적층체의 제조 방법.
- 제1항 또는 제2항에 있어서, 상기 제2 가접착재층 (B)를, 하기 일반식 (1)로 표시되는 반복 단위를 갖는 중량 평균 분자량이 3,000 내지 500,000인 실록산 결합 함유 중합체 100질량부에 대하여, 가교제로서 포르말린 또는 포르말린-알코올에 의해 변성된 아미노 축합물, 멜라민 수지, 요소 수지, 1분자 중에 평균해서 2개 이상의 메틸올기 또는 알콕시메틸올기를 갖는 페놀 화합물 및 1분자 중에 평균해서 2개 이상의 에폭시기를 갖는 에폭시 화합물에서 선택되는 어느 1종 이상을 0.1 내지 50질량부 함유하는 열경화성 수지 조성물에 의해 형성하는 것을 특징으로 하는 적층체의 제조 방법.
[식 중, R1 내지 R4는 동일하거나 상이해도 되는 탄소 원자수 1 내지 8의 1가 탄화수소기를 나타낸다. 또한, m은 1 내지 100의 정수이고, B는 양수, A는 0 또는 양수이다. 단 A+B=1이다. X는 하기 일반식 (2)로 표시되는 2가의 유기기이다.
(식 중, Z는
중 어느 것에서 선택되는 2가의 유기기이고, N은 0 또는 1이다. 또한, R5, R6은 각각 탄소 원자수 1 내지 4의 알킬기 또는 알콕시기이고, 서로 동일하거나 상이해도 된다. k는 0, 1, 2 중 어느 것이다.)] - 제1항 또는 제2항에 있어서, 상기 제2 가접착재층 (B)를, 하기 일반식 (3)으로 표시되는 반복 단위를 갖는 중량 평균 분자량이 3,000 내지 500,000인 실록산 결합 함유 중합체 100질량부에 대하여, 가교제로서 1분자 중에 평균해서 2개 이상의 페놀기를 갖는 페놀 화합물 및 1분자 중에 평균해서 2개 이상의 에폭시기를 갖는 에폭시 화합물에서 선택되는 어느 1종 이상을 0.1 내지 50질량부 함유하는 열경화성 수지 조성물에 의해 형성하는 것을 특징으로 하는 적층체의 제조 방법.
[식 중, R7 내지 R10은 동일하거나 상이해도 되는 탄소 원자수 1 내지 8의 1가 탄화수소기를 나타낸다. 또한, n은 1 내지 100의 정수이고, D는 양수, C는 0 또는 양수이다. 단, C+D=1이다. 또한, Y는 하기 일반식 (4)로 표시되는 2가의 유기기이다.
(식 중, V는
중 어느 것에서 선택되는 2가의 유기기이고, p는 0 또는 1이다. 또한, R11, R12는 각각 탄소 원자수 1 내지 4의 알킬기 또는 알콕시기이고, 서로 동일하거나 상이해도 된다. h는 0, 1, 2 중 어느 것이다.)] - 제1항 또는 제2항에 있어서, 상기 가접착재로서, 기판측에서 보아 제1 가접착재층 (A), 제2 가접착재층 (B), 제3 가접착재층 (C)의 순이 되도록 추가로 제3 가접착재층 (C)를 마련하는 것을 특징으로 하는 적층체의 제조 방법.
- 기판의 제조 방법으로서,
제1항 또는 제2항에 기재된 적층체의 제조 방법에 의해 적층체를 얻은 후, 상기 기판의 이면을 가공하는 공정 (d)를 행하고, 그 후 추가로 상기 적층체로부터 상기 지지체와 상기 가접착재를 제거한 후, 상기 기판을 세정하는 공정 (e)를 갖고,
상기 공정 (e)에 있어서, 기판을 세정한 후의 지지체를 제거한 측의 면의 물 접촉각을 30° 미만으로 하는 것을 특징으로 하는 기판의 제조 방법.
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| US20170069521A1 (en) | 2014-03-18 | 2017-03-09 | Shin-Etsu Chemical Co., Ltd. | Wafer processing laminate, temporary adhesive material for wafer processing, and method for manufacturing thin wafer |
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| JP4652030B2 (ja) * | 2004-11-29 | 2011-03-16 | 東京応化工業株式会社 | サポートプレートの貼り付け方法 |
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| JP5975528B2 (ja) * | 2012-10-11 | 2016-08-23 | 信越化学工業株式会社 | ウエハ加工体、ウエハ加工用部材、ウエハ加工用仮接着材、及び薄型ウエハの製造方法 |
| JP6589766B2 (ja) * | 2015-08-18 | 2019-10-16 | 信越化学工業株式会社 | ウエハ加工用接着材、ウエハ積層体及び薄型ウエハの製造方法 |
| JP6502824B2 (ja) * | 2015-10-19 | 2019-04-17 | 信越化学工業株式会社 | ウエハ加工体、ウエハ加工用仮接着材、及び薄型ウエハの製造方法 |
| JP6610510B2 (ja) * | 2015-11-26 | 2019-11-27 | 信越化学工業株式会社 | ウエハ積層体及びその製造方法 |
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| EP2738797A2 (en) | 2012-11-30 | 2014-06-04 | Shin-Etsu Chemical Co., Ltd. | Wafer processing laminate, wafer processing member, temporary adhering material for processing wafer, and manufacturing method of thin wafer |
| US20170069521A1 (en) | 2014-03-18 | 2017-03-09 | Shin-Etsu Chemical Co., Ltd. | Wafer processing laminate, temporary adhesive material for wafer processing, and method for manufacturing thin wafer |
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