KR102399755B1 - 삼층 필름, 삼층 필름의 제조 방법, 적층판 및 프린트 회로 기판 - Google Patents
삼층 필름, 삼층 필름의 제조 방법, 적층판 및 프린트 회로 기판 Download PDFInfo
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Abstract
(a) 20 ㎛≤T1≤50 ㎛
(b) 0.3≤T2/T1≤1.5
Description
도 2는 본 발명의 삼층 필름을 이용한 적층체를 설명하기 위한 모식도이다.
도 3은 본 발명의 제3 양태의 삼층 필름의 제조 방법을 설명하기 위한 개략도이다.
Claims (14)
- 폴리이미드 수지 필름의 양면에, 히드록시카르복실산을 메소겐기로 하는 액정 폴리머층이 적층되어 있고, 상기 폴리이미드 수지 필름의 두께(T1)와 상기 히드록시카르복실산을 메소겐기로 하는 액정 폴리머층의 두께(T2)가, 이하의 관계식 (a) 및 (b)를 만족하는 삼층 필름(단, 2개의 T2는 상호 독립적이며, 동일하더라도 좋고, 다르더라도 좋다.).
(a) 20 ㎛≤T1≤50 ㎛
(b) 0.3≤T2/T1≤0.8 - 제1항에 있어서, 상기 히드록시카르복실산을 메소겐기로 하는 액정 폴리머층이, 2-히드록시안식향산 또는 2-히드록시-6-나프토산에 유래하는 구조 단위를 함유하는 삼층 필름.
- 제1항 또는 제2항에 있어서, 상기 히드록시카르복실산을 메소겐기로 하는 액정 폴리머층이 이하의 구조 단위 (1) 및 (2)를 더 함유하는 삼층 필름.
(1) -CO-Ar1-CO-
(2) -X-Ar2-Y-
(식에서, Ar1 및 Ar2는 각각 독립적으로 페닐렌기, 나프틸렌기, 비페닐렌기 또는 하기 식 (3)으로 표시되는 기를 나타낸다. X 및 Y는 각각 독립적으로 산소 원자 또는 이미노기를 나타낸다. Ar1 또는 Ar2로 표시되는 상기 기에 있는 수소 원자는 각각 독립적으로 할로겐 원자, 알킬기 또는 아릴기로 치환되어 있어도 좋다.)
(3) -Ar3-Z-Ar4-
(Ar3 및 Ar4는 각각 독립적으로 페닐렌기 또는 나프틸렌기를 나타낸다. Z는 산소 원자, 황 원자, 카르보닐기, 술포닐기 또는 알킬리덴기를 나타낸다.) - 제1항 또는 제2항에 기재한 삼층 필름이 절연층으로서 이용되고, 이 절연층의 적어도 한쪽 면에 금속층이 형성되어 있는 적층판.
- 제4항에 있어서, 상기 금속층의 최대 높이(Rz)가 0.5~2.5 ㎛인 적층판.
- 제4항에 있어서, 상기 금속층이 구리를 포함하는 적층판.
- 제5항에 있어서, 상기 금속층이 구리를 포함하는 적층판.
- 제4항에 기재한 적층판을 이용한 프린트 회로 기판.
- 제5항에 기재한 적층판을 이용한 프린트 회로 기판.
- 제6항에 기재한 적층판을 이용한 프린트 회로 기판.
- 제7항에 기재한 적층판을 이용한 프린트 회로 기판.
- 용매와 액정 폴리머를 포함하는 액상 조성물을 폴리이미드 수지 필름 상에 도포하여, 상기 액상 조성물로 상기 폴리이미드 수지 필름을 덮는 액상 조성물 도포 공정과,
상기 액상 조성물 중의 용매를 제거하는 용매 제거 공정과,
가열 처리 공정
이 포함되는 삼층 필름의 제조 방법으로서,
상기 액정 폴리머로서, 2-히드록시안식향산 또는 2-히드록시-6-나프토산에 유래하는 구조 단위와, 이하의 구조 단위를 함유하고,
(1) -CO-Ar1-CO-
(2) -X-Ar2-Y-
(식에서, Ar1 및 Ar2는 각각 독립적으로 페닐렌기, 나프틸렌기, 비페닐렌기 또는 하기 식 (3)으로 표시되는 기를 나타낸다. X 및 Y는 각각 독립적으로 산소 원자 또는 이미노기를 나타낸다. Ar1 또는 Ar2로 표시되는 상기 기에 있는 수소 원자는 각각 독립적으로 할로겐 원자, 알킬기 또는 아릴기로 치환되어 있어도 좋다.)
(3) -Ar3-Z-Ar4-
(Ar3 및 Ar4는 각각 독립적으로 페닐렌기 또는 나프틸렌기를 나타낸다. Z는 산소 원자, 황 원자, 카르보닐기, 술포닐기 또는 알킬리덴기를 나타낸다.)
상기 액상 조성물 도포 공정에 있어서, 상기 폴리이미드 수지 필름의 두께(T1)와 액정 폴리머층의 두께(T2)가, 이하의 관계식 (a) 및 (b)가 되도록 상기 액상 조성물의 도포량을 조정하는 삼층 필름의 제조 방법:
(a) 20 ㎛≤T1≤50 ㎛
(b) 0.3≤T2/T1≤0.8
(단, 2개의 T2는 상호 독립적이며, 동일하더라도 좋고, 다르더라도 좋다.). - 용매와 액정 폴리머를 포함하는 액상 조성물 중에 폴리이미드 수지 필름을 함침시켜, 상기 액상 조성물로 상기 폴리이미드 수지 필름을 덮는 함침 공정과,
상기 액상 조성물 중의 용매를 제거하는 용매 제거 공정과,
가열 처리 공정
이 포함되는 삼층 필름의 제조 방법으로서,
상기 액정 폴리머로서, 2-히드록시안식향산 또는 2-히드록시-6-나프토산에 유래하는 구조 단위와, 이하의 구조 단위 (1) 및 (2)를 함유하고,
(1) -CO-Ar1-CO-
(2) -X-Ar2-Y-
(식에서, Ar1 및 Ar2는 각각 독립적으로 페닐렌기, 나프틸렌기, 비페닐렌기 또는 하기 식 (3)으로 표시되는 기를 나타낸다. X 및 Y는 각각 독립적으로 산소 원자 또는 이미노기를 나타낸다. Ar1 또는 Ar2로 표시되는 상기 기에 있는 수소 원자는 각각 독립적으로 할로겐 원자, 알킬기 또는 아릴기로 치환되어 있어도 좋다.)
(3) -Ar3-Z-Ar4-
(Ar3 및 Ar4는 각각 독립적으로 페닐렌기 또는 나프틸렌기를 나타낸다. Z는 산소 원자, 황 원자, 카르보닐기, 술포닐기 또는 알킬리덴기를 나타낸다.)
상기 함침 공정에 있어서, 상기 폴리이미드 수지 필름의 두께(T1)와 액정 폴리머층의 두께(T2)가, 이하의 관계식 (a) 및 (b)가 되도록 상기 폴리이미드 수지 필름에 있어서의 상기 액상 조성물의 부착량을 조정하는 것인 삼층 필름의 제조 방법:
(a) 20 ㎛≤T1≤50 ㎛
(b) 0.3≤T2/T1≤0.8
(단, 2개의 T2는 상호 독립적이며, 동일하더라도 좋고, 다르더라도 좋다.). - 용매와 액정 폴리머를 포함하는 액상 조성물과, 폴리이미드 수지의 전구체인 폴리아믹산 수지 액상 조성물을 준비하는 공정과,
지지체 상에 상기 액상 조성물, 상기 폴리아믹산 수지 액상 조성물, 상기 액상 조성물을 이 순서로 삼층으로 도포하는 공정과,
상기 삼층의 액상 조성물 중의 용매를 제거하는 용매 제거 공정과,
삼층 필름 형성 공정
이 포함되는 삼층 필름의 제조 방법으로서,
상기 액정 폴리머로서, 2-히드록시안식향산 또는 2-히드록시-6-나프토산에 유래하는 구조 단위와, 이하의 구조 단위 (1) 및 (2)를 함유하고,
(1) -CO-Ar1-CO-
(2) -X-Ar2-Y-
(식에서, Ar1 및 Ar2는 각각 독립적으로 페닐렌기, 나프틸렌기, 비페닐렌기 또는 하기 식 (3)으로 표시되는 기를 나타낸다. X 및 Y는 각각 독립적으로 산소 원자 또는 이미노기를 나타낸다. Ar1 또는 Ar2로 표시되는 상기 기에 있는 수소 원자는 각각 독립적으로 할로겐 원자, 알킬기 또는 아릴기로 치환되어 있어도 좋다.)
(3) -Ar3-Z-Ar4-
(Ar3 및 Ar4는 각각 독립적으로 페닐렌기 또는 나프틸렌기를 나타낸다. Z는 산소 원자, 황 원자, 카르보닐기, 술포닐기 또는 알킬리덴기를 나타낸다.)
상기 도포하는 공정에 있어서, 상기 폴리이미드 수지 필름의 두께(T1)와 액정 폴리머층의 두께(T2)가, 이하의 관계식 (a) 및 (b)가 되도록 상기 용매와 액정 폴리머를 함유하는 액상 조성물의 도포량을 조정하는 삼층 필름의 제조 방법:
(a) 20 ㎛≤T1≤50 ㎛
(b) 0.3≤T2/T1≤0.8
(단, 2개의 T2는 상호 독립적이며, 동일하더라도 좋고, 다르더라도 좋다.).
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