JP7414301B2 - 半導体パッケージ用ポリイミドフィルム - Google Patents
半導体パッケージ用ポリイミドフィルム Download PDFInfo
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- JP7414301B2 JP7414301B2 JP2021512789A JP2021512789A JP7414301B2 JP 7414301 B2 JP7414301 B2 JP 7414301B2 JP 2021512789 A JP2021512789 A JP 2021512789A JP 2021512789 A JP2021512789 A JP 2021512789A JP 7414301 B2 JP7414301 B2 JP 7414301B2
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- polyimide layer
- thermoplastic polyimide
- film
- lead frame
- base film
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- 229920001721 polyimide Polymers 0.000 title claims description 40
- 239000004065 semiconductor Substances 0.000 title claims description 24
- 229920006259 thermoplastic polyimide Polymers 0.000 claims description 112
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 230000009477 glass transition Effects 0.000 claims description 10
- 239000011256 inorganic filler Substances 0.000 claims description 8
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 description 19
- 238000007789 sealing Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 4
- 238000012858 packaging process Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 3
- 150000004984 aromatic diamines Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000001033 ether group Chemical group 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000000468 ketone group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- NUIURNJTPRWVAP-UHFFFAOYSA-N 3,3'-Dimethylbenzidine Chemical compound C1=C(N)C(C)=CC(C=2C=C(C)C(N)=CC=2)=C1 NUIURNJTPRWVAP-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- WUPRYUDHUFLKFL-UHFFFAOYSA-N 4-[3-(4-aminophenoxy)phenoxy]aniline Chemical compound C1=CC(N)=CC=C1OC1=CC=CC(OC=2C=CC(N)=CC=2)=C1 WUPRYUDHUFLKFL-UHFFFAOYSA-N 0.000 description 1
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 1
- QQGYZOYWNCKGEK-UHFFFAOYSA-N 5-[(1,3-dioxo-2-benzofuran-5-yl)oxy]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(OC=2C=C3C(=O)OC(C3=CC=2)=O)=C1 QQGYZOYWNCKGEK-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- -1 polyethylene naphthalate Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
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- Microelectronics & Electronic Packaging (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Description
実施例1
4,4’-ジアミノジフェニルエーテルとピロメリト酸ジアンヒドリドを用いて非熱可塑性ポリイミド樹脂(樹脂A)を重合しており、1,3-ビス(4-アミノフェノキシ)ベンゼンと、3,3’,4,4’-ベンゾフェノンジアンヒドリド、4,4’-オキシジフタル酸無水物を用いて、熱可塑性ポリイミド層を形成するための樹脂(樹脂B)を合成し、樹脂質量に対し15%のシリカを添加して複合化を行った。
熱可塑性ポリイミド層の20℃~200℃における平均線熱膨張係数は、90ppm/Kであり、ガラス転移温度が180℃であったことを除いて、実施例1と同じ方法によりポリイミドフィルムを製造した。
非熱可塑性ポリイミド層を形成せずに、基材フィルム上に熱可塑性ポリイミド層を形成したことを除いて、実施例1と同じ方法によりポリイミドフィルムを製造した。
残留物の評価方法
ポリイミドフィルムの耐熱性を評価するために、半導体パッケージのリードフレームの裏面にポリミイドフィルムを付着した後、190℃で5分、260℃で1分、175℃で3分間、段階的に熱処理した後、リードフレームからポリイミドフィルムを除去した後、リードフレームの表面に残っている残留物の数量を顕微鏡を利用して確認した。
○:リードフレームの表面残留物の全体面積と比べて、5%以内
△:リードフレームの表面残留物の全体面積と比べて、5~30%以内
×:リードフレームの表面残留物の全体面積と比べて、30%以上
Claims (5)
- 基材フィルム;
前記基材フィルム上に位置する非熱可塑性ポリイミド層;及び、
前記非熱可塑性ポリイミド層上に位置する熱可塑性ポリイミド層;とを含み、
ここで、前記基材フィルムと前記非熱可塑性ポリイミド層との20℃~200℃における平均線熱膨張係数差は、15ppm/K以下であり、
前記熱可塑性ポリイミド層は、無機フィラーを含むものの、前記無機フィラーは、前記熱可塑性ポリイミド層の樹脂100重量部に対して5~20重量部を含み、
前記非熱可塑性ポリイミド層のリードフレームに対する25℃における接着力は、10gf/cm未満であり、
前記熱可塑性ポリイミド層のリードフレームに対する25℃における接着力は、50gf/cm~200gf/cmである、
半導体パッケージ用ポリイミドフィルム。 - 前記非熱可塑性ポリイミド層と前記熱可塑性ポリイミド層との20℃~200℃における平均線熱膨張係数差は、30ppm/K以下である、
請求項1に記載の半導体パッケージ用ポリイミドフィルム。 - 前記熱可塑性ポリイミド層は、20℃~200℃における40ppm/K~50ppm/Kの平均線熱膨張係数を有する、
請求項1に記載の半導体パッケージ用ポリイミドフィルム。 - 前記熱可塑性ポリイミド層は、190℃~230℃のガラス転移温度を有する、
請求項1に記載の半導体パッケージ用ポリイミドフィルム。 - 前記非熱可塑性ポリイミド層に接する前記基材フィルムの表面は、前記非熱可塑性ポリイミド層との接着力を高めるために表面処理された、
請求項1に記載の半導体パッケージ用ポリイミドフィルム。
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