KR20200059255A - 본딩시의 반도체 칩의 가열 조건 설정 방법, 비도전성 필름의 점도 측정 방법 및 본딩 장치 - Google Patents
본딩시의 반도체 칩의 가열 조건 설정 방법, 비도전성 필름의 점도 측정 방법 및 본딩 장치 Download PDFInfo
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- KR20200059255A KR20200059255A KR1020207011353A KR20207011353A KR20200059255A KR 20200059255 A KR20200059255 A KR 20200059255A KR 1020207011353 A KR1020207011353 A KR 1020207011353A KR 20207011353 A KR20207011353 A KR 20207011353A KR 20200059255 A KR20200059255 A KR 20200059255A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 99
- 239000004065 semiconductor Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 19
- 238000001723 curing Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000013007 heat curing Methods 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 abstract description 3
- 238000001029 thermal curing Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- H01L2225/06513—Bump or bump-like direct electrical connections between devices, e.g. flip-chip connection, solder bumps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
- H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/065—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10D89/00
- H01L25/0657—Stacked arrangements of devices
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Abstract
Description
도 2는 본딩 장치에 의해 비도전성 필름(NCF)의 점도 측정을 행하고 있는 상태를 나타내는 설명도이다.
도 3은 점도 특성 맵의 일례이다.
도 4는 가열 개시 온도 특성 맵의 일례이다.
도 5는 선택한 가열 개시 온도와 온도상승률에 기초하는 NCF의 온도의 시간 변화와 히터 온도 지령값을 나타내는 그래프이다.
도 6은 도 5에서 설정한 히터 온도 지령값에 의해 본딩을 한 경우의 반도체 칩, NCF의 온도의 시간 변화와 NCF의 점도의 시간 변화를 나타내는 그래프이다.
12…히터
14, 26…컨트롤러
20…본딩 헤드
21…베이스
22…히트 블록
23…히터
24…본딩 툴
25…구동부
31, 32…반도체 칩
50…점도 특성 맵
60…가열 개시 온도 특성 맵
90…제어부
91, 92…온도 센서
100…본딩 장치
Claims (9)
- 비도전성 필름을 사용하여 반도체 칩을 본딩할 때의 반도체 칩의 가열 조건 설정 방법으로서,
각종 온도상승률에 있어서의 비도전성 필름의 온도에 대한 점도의 변화를 나타내는 점도 특성 맵과, 동일한 온도상승률로 가열 개시 온도를 변화시킨 경우의 비도전성 필름의 온도에 대한 점도의 변화를 나타내는 가열 개시 온도 특성 맵 중 어느 한쪽 또는 양쪽에 기초하여 가열 개시 온도와 온도상승률을 설정하는 것
을 특징으로 하는 가열 조건 설정 방법. - 제 1 항에 있어서,
본딩은 반도체 칩에 형성된 금속 범프를 용융시켜 기판 또는 다른 반도체 칩의 전극과의 사이에서 합금을 형성함으로써 반도체 칩을 기판 또는 다른 반도체 칩에 접합하고, 비도전성 필름을 열경화시켜 반도체 칩과 기판 또는 다른 반도체 칩과의 사이의 간극을 충전하는 것이며,
가열 개시 온도와 온도상승률의 설정은 금속 범프의 용융 개시 온도보다 낮은 온도에서 비도전성 필름의 점도가 경화 점도 이상이 되는 가열 개시 온도와 온도상승률의 조합을 선택하는 것
을 특징으로 하는 가열 조건 설정 방법. - 제 1 항 또는 제 2 항에 있어서,
점도 특성 맵은
본딩 스테이지와 본딩 툴 사이에 비도전성 필름을 끼워넣어 일정한 하중으로 압압한 상태에서, 각종 온도상승률로 비도전성 필름의 온도를 상승시키면서, 본딩 툴의 강하량을 측정하고, 본딩 툴의 강하량에 기초하여 비도전성 필름의 점도를 산출하여, 각종 온도상승률에 있어서의 비도전성 필름의 온도에 대한 점도의 변화 특성으로서 출력한 것인 것을 특징으로 하는 가열 조건 설정 방법. - 제 1 항 또는 제 2 항에 있어서,
가열 개시 온도 특성 맵은
본딩 스테이지와 본딩 툴 사이에 비도전성 필름을 끼워넣어 일정한 하중으로 압압한 상태에서, 각종 가열 개시 온도로부터 동일한 온도상승률로 비도전성 필름의 온도를 상승시키면서, 본딩 툴의 강하량을 측정하고, 본딩 툴의 강하량에 기초하여 비도전성 필름의 점도를 산출하여, 동일한 온도상승률로 가열 개시 온도를 변화시킨 경우의 비도전성 필름의 온도에 대한 점도의 변화 특성으로서 출력한 것인 것을 특징으로 하는 가열 조건 설정 방법. - 제 1 항 또는 제 2 항에 있어서,
설정한 가열 개시 온도와 온도상승률에 기초하여, 반도체 칩을 가열하는 히터로의 온도 지령을 설정하는 것을 특징으로 하는 가열 조건 설정 방법. - 제 3 항에 있어서,
설정한 가열 개시 온도와 온도상승률에 기초하여, 반도체 칩을 가열하는 히터로의 온도 지령을 설정하는 것을 특징으로 하는 가열 조건 설정 방법. - 제 4 항에 있어서,
설정한 가열 개시 온도와 온도상승률에 기초하여, 반도체 칩을 가열하는 히터로의 온도 지령을 설정하는 것을 특징으로 하는 가열 조건 설정 방법. - 본딩 장치를 사용한 비도전성 필름의 점도 측정 방법으로서,
본딩 스테이지와 본딩 툴 사이에 비도전성 필름을 끼워넣어 일정한 하중으로 압압한 상태에서, 소정의 온도상승률로 비도전성 필름의 온도를 상승시키면서, 본딩 툴의 강하량을 측정하고,
본딩 툴의 강하량에 기초하여 비도전성 필름의 점도를 산출하는 비도전성 필름의 점도 측정 방법. - 본딩 장치로서,
비도전성 필름이 재치되는 본딩 스테이지와,
상기 본딩 스테이지와 함께 상기 비도전성 필름을 끼워넣는 본딩 툴과,
상기 본딩 툴을 상하 방향으로 구동하는 본딩 헤드와,
상기 본딩 헤드에 내장된 히터와,
상기 본딩 헤드의 높이와 상기 히터의 출력을 조정하는 제어부를 구비하고,
상기 제어부는
상기 본딩 헤드를 강하시켜 상기 비도전성 필름을 일정한 하중으로 압압한 상태에서, 상기 히터에 의해 소정의 온도상승률로 상기 비도전성 필름의 온도를 상승시키면서, 상기 본딩 툴의 강하량을 측정하고,
상기 본딩 툴의 강하량에 기초하여 상기 비도전성 필름의 점도를 산출하는 것
을 특징으로 하는 본딩 장치.
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