JP7146301B2 - 絶縁接着フィルム及びその製造方法、多層プリント配線板 - Google Patents
絶縁接着フィルム及びその製造方法、多層プリント配線板 Download PDFInfo
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- JP7146301B2 JP7146301B2 JP2020567138A JP2020567138A JP7146301B2 JP 7146301 B2 JP7146301 B2 JP 7146301B2 JP 2020567138 A JP2020567138 A JP 2020567138A JP 2020567138 A JP2020567138 A JP 2020567138A JP 7146301 B2 JP7146301 B2 JP 7146301B2
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- epoxy resin
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Description
アミノ樹脂またはブロック型イソシアネートを飽和ポリエステル樹脂溶液に加え、混合することにより第1接着剤溶液を得る工程と;
前記第1接着剤溶液にエポキシ樹脂と硬化剤を加え、混合することにより第2接着剤溶液を得る工程と;
前記第2接着剤溶液に無機充填剤と硬化促進剤を加え、混合することにより第3接着剤溶液を得る工程と;
前記第3接着剤溶液を離型フィルム上に塗布して硬化処理を行い、前記絶縁接着フィルムを得る工程と、を含む。
S10、アミノ樹脂またはブロック型イソシアネートを飽和ポリエステル樹脂溶液中に加え、混合することにより第1接着剤溶液を得る工程と;
S20、前記第1接着剤溶液中にエポキシ樹脂と硬化剤を加え、混合することにより第2接着剤溶液を得る工程と;
S30、前記第2接着剤溶液中に無機充填剤と硬化促進剤を加え、混合することにより第3接着剤溶液を得る工程と;
S40、前記第3接着剤溶液を離型フィルム上に塗布して硬化処理を行い、前記絶縁接着フィルムを得る工程と、を含む。
(比較例)
YL6747H3020重量部と、NPEL-128二官能エポキシ樹脂30重量部と、XZ 92530リン含有エポキシ樹脂35重量部、を均一的に分散させるまで撹拌し、硬化剤ジシアンジアミド2.5重量部をDMF溶媒に溶けた後上述の接着剤溶液に加え、球状シリカ50重量部を上述の接着剤溶液に加えて、十分に分散するまで撹拌し、最後に少量な硬化促進剤2-エチル-4メチルイミダゾール入れて、均一的に分散させるまで撹拌した後使用するまで置いておく。300×300cm、平坦で清潔な表面を有する、厚さ38μmのPET離型フィルムを用意し、離型フィルムの片面に上述の接着剤溶液を均一に塗布し、120℃のオ-ブンで7分間ベーキングして接着シートを得る。2枚の絶縁フィルムを重ね合わせ、真空ホットプレスに入れ170℃で60分間硬化させ、サンプル基板を得る。
Claims (9)
- 飽和ポリエステル樹脂5-30重量部、アミノ樹脂またはブロック型イソシアネート0.5-3重量部、エポキシ樹脂45-75重量部、硬化剤1-25重量部、無機充填剤1-100重量部、硬化促進剤0.1-5重量部配合する、ことを特徴とする請求項1に記載の絶縁接着フィルム。
- 前記アミノ樹脂がメラミンまたはベンゾグアナミンとホルムアルデヒド及び有機アルコールの縮合重合により形成される樹脂である、ことを特徴とする請求項1に記載の絶縁接着フィルム。
- 前記ブロック型イソシアネートがフェノールをブロック剤としてのHDI、MDI、TDI、PDIのうち一種類または多種類であり;あるいは、前記ブロック型イソシアネートはカプロラクタムをブロック剤としてのHDI、MDI、TDI、PDIのうち一種類または多種類である、ことを特徴とする請求項1に記載の絶縁接着フィルム。
- 前記エポキシ樹脂がビスフェノ-ルAエポキシ樹脂、ビスフェノ-ルFエポキシ樹脂、DCPDエポキシ樹脂、トリフェノ-ルエポキシ樹脂、ビフェニルエポキシ樹脂、ナフト-ルエポキシ樹脂、リン含有エポキシ樹脂のうち一種類または多種類である、ことを特徴とする請求項1に記載の絶縁接着フィルム。
- 前記硬化剤がジシアンジアミド、芳香族アミン、フェノール化合物、活性エステル化合物、リン含有フェノールアルデヒドのうち一種類または多種類である、ことを特徴とする、請求項1に記載の絶縁接着フィルム。
- 前記離型フィルムの厚さが10-100μmであり、前記絶縁材層の厚さが10-200μmである、ことを特徴とする請求項1に記載の絶縁接着フィルム。
- アミノ樹脂またはブロック型イソシアネートを飽和ポリエステル樹脂溶液に加え、混合することにより第1接着剤溶液を得る工程と、
前記第1接着剤溶液にエポキシ樹脂と硬化剤を加え、混合することにより第2接着剤溶液を得る工程と、
前記第2接着剤溶液に無機充填剤と硬化促進剤を加え、混合することにより第3接着剤溶液を得る工程と、
前記第3接着剤溶液を離型フィルム上に塗布して硬化処理を行い、前記絶縁接着フィルムを得る工程と、を含む、ことを特徴とする請求項1乃至7のいずれかに記載の前記絶縁接着フィルムの製造方法。 - 請求項1乃至7のいずれかに記載の前記絶縁接着フィルムを含む、ことを特徴とする多層プリント配線板。
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