JP7600111B2 - 封止用多層樹脂シート - Google Patents
封止用多層樹脂シート Download PDFInfo
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- JP7600111B2 JP7600111B2 JP2021532796A JP2021532796A JP7600111B2 JP 7600111 B2 JP7600111 B2 JP 7600111B2 JP 2021532796 A JP2021532796 A JP 2021532796A JP 2021532796 A JP2021532796 A JP 2021532796A JP 7600111 B2 JP7600111 B2 JP 7600111B2
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- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- HKUFIYBZNQSHQS-UHFFFAOYSA-N n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC HKUFIYBZNQSHQS-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052605 nesosilicate Inorganic materials 0.000 description 1
- 229910000273 nontronite Inorganic materials 0.000 description 1
- LYFSPQWNZMXDBG-UHFFFAOYSA-N octadecylphosphane Chemical compound CCCCCCCCCCCCCCCCCCP LYFSPQWNZMXDBG-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-O octylazanium Chemical compound CCCCCCCC[NH3+] IOQPZZOEVPZRBK-UHFFFAOYSA-O 0.000 description 1
- SWMBQMGPRYJSCI-UHFFFAOYSA-N octylphosphane Chemical compound CCCCCCCCP SWMBQMGPRYJSCI-UHFFFAOYSA-N 0.000 description 1
- 150000004010 onium ions Chemical class 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- 150000004762 orthosilicates Chemical class 0.000 description 1
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910000275 saponite Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000276 sauconite Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229910052606 sorosilicate Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 229920006259 thermoplastic polyimide Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- XTAZYLNFDRKIHJ-UHFFFAOYSA-O trioctylazanium Chemical compound CCCCCCCC[NH+](CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-O 0.000 description 1
- RMZAYIKUYWXQPB-UHFFFAOYSA-N trioctylphosphane Chemical compound CCCCCCCCP(CCCCCCCC)CCCCCCCC RMZAYIKUYWXQPB-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
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- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
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- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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Description
本発明[2]は、前記第1封止用樹脂シートの厚みが、30μm以上100μm以下であり、前記第2封止用樹脂シートの厚みが、50μm以上500μm以下である、上記[1]に記載の封止用多層樹脂シートを含んでいる。
好ましくは、カルボキシル基含有モノマー、ヒドロキシル基含有モノマーが挙げられ、より好ましくは、カルボキシル基含有モノマーが挙げられる。
第1封止用樹脂シートにおいて、熱可塑性樹脂および熱硬化性樹脂の総量に対する、熱可塑性樹脂の割合の上限は、例えば、30質量%、好ましくは、20質量%である。
第2封止用樹脂シートの線膨張係数の下限は、例えば、5ppm/℃であっても良い。
以上より、第1封止用樹脂シート1に対する第1無機充填材の含有割合(B)と、第2封止用樹脂シート12に対する第2無機充填材の含有割合(A)とが、所定の割合および所定の関係であるとは、上記第1無機充填材の含有割合(B)の下限が、上記下限以上であり、かつ、上記第2無機充填材の含有割合(A)の下限が、上記下限以上であり、かつ、上記第1無機充填材の含有割合(B)と、上記第2無機充填材の含有割合(A)とが、上記式(1)を満足することを意味し、具体的には、第1封止用樹脂シート1に対する第1無機充填材の含有割合(B)と、第2封止用樹脂シート12に対する第2無機充填材の含有割合(A)とが、図2の斜線部分の範囲であることを意味する。
とりわけ、封止用樹脂シート1および第2封止用樹脂シート12が、50℃以上、130℃以下の軟化点を有するエポキシ樹脂の主剤を含有すれば、図1Cに示す工程において、封止用樹脂シート1および第2封止用樹脂シート12が流動できる。従って、図1Cに示す工程の時間短縮、および、図1Cに示す工程における第2封止用樹脂シート12の厚み方向一方面を平坦にできる。
以下の各変形例において、上記した一実施形態と同様の部材および工程については、同一の参照符号を付し、その詳細な説明を省略する。また、各変形例は、特記する以外、一実施形態と同様の作用効果を奏することができる。さらに、一実施形態、その変形例を適宜組み合わせることができる。
また、以下の記載において用いられる配合割合(含有割合)、物性値、パラメータなどの具体的数値は、上記の「発明を実施するための形態」において記載されている、それらに対応する配合割合(含有割合)、物性値、パラメータなど該当記載の上限(「以下」、「未満」として定義されている数値)または下限(「以上」、「超過」として定義されている数値)に代替することができる。
エポキシ樹脂1:新日鐵化学社製のYSLV-80XY(ビスフェノールF型エポキシ樹脂、高分子量エポキシ樹脂、エポキシ当量200g/eq.、固体、軟化点80℃) エポキシ樹脂2:三菱ケミカル社製のJER630(トリグリシジルアミノフェノール(グリシジルアミン型エポキシ樹脂))、エポキシ当量90g/eq.~105g/eq.、液状
フェノール樹脂1:群栄化学社製のLVR-8210DL(ノボラック型フェノール樹脂、潜在性硬化剤、水酸基当量:104g/eq.、固体、軟化点:60℃)
フェノール樹脂2:群栄化学社製のTPM-100(トリスヒドロキシフェニルメタン型ノボラック樹脂)、水酸基当量:98g/eq.
アクリル樹脂1:根上工業社製のHME-2006M、カルボキシル基含有のアクリル酸エステルコポリマー(アクリル樹脂)、酸価:32、官能基数:736、重量平均分子量:1290000、ガラス転移温度(Tg):-13.9℃、固形分濃度20質量%のメチルエチルケトン溶液
シランカップリング剤:信越化学社製のKBM-403(3-グリシドキシプロピルトリメトキシシラン)
第1フィラー:FB-8SM(球状溶融シリカ粉末)、平均粒子径7.0μm)
第2フィラー:アドマテックス社製のSC220G-SMJ(平均粒径0.5μm)を3-メタクリロキシプロピルトリメトキシシラン(信越化学社製の製品名:KBM-503)で表面処理した無機フィラー(非晶質シリカおよび表面処理された非晶質シリカ)、無機フィラーの100質量部に対して1質量部のシランカップリング剤で表面処理した無機粒子
硬化促進剤:四国化成工業社製の2PHZ-PW(2-フェニル-4,5-ジヒドロキシメチルイミダゾール)
溶媒:メチルエチルケトン(MEK)
カーボンブラック:三菱化学社製の#20、粒子径50nm
<第1封止用樹脂シートの調製>
調製例1~調製例10
表1に記載の配合処方に従って、材料のワニスを調製した。ワニスを剥離シートの表面に塗布した後、120℃で、2分間乾燥させて、厚み50μmの封止用樹脂シート1を作製した。第1封止用樹脂シート1は、Bステージであった。
<第2封止用樹脂シートの調製>
調製例11~調製例17
表2に記載の配合処方に従って、材料のワニスを調製した。ワニスを剥離シートの表面に塗布した後、120℃で、2分間乾燥させて、厚み52.5μmの第2封止用樹脂シート12用前駆体を作製し、この第2封止用樹脂シート12用前駆体を4枚積層させて、厚み210μmの第2封止用樹脂シート12を作製した。第2封止用樹脂シート12は、Bステージであった。
表3に示すような調製例の組合せで、第1封止用樹脂シート1の厚み方向一方側に、第2封止用樹脂シート12を配置し、厚み260μmの封止用多層樹脂シート11を作製した。
<硬化体侵入長さの測定>
下記のステップA~ステップEを実施して、硬化体侵入長さYを測定した。
各実施例および各比較例の第1封止用樹脂シート1および第2封止用樹脂シート12のガラス転移温度を、動的粘弾性測定装置(DMA、周波数1Hz、引張モード、昇温速度10℃/min)を用いて測定される損失正接(tanδ)の極大値により、測定した。
その結果を表3に示す。
各実施例および各比較例の第1封止用樹脂シート1および第2封止用樹脂シート12の線膨張係数を、熱機械測定装置(TMA)により、以下の条件に基づき測定した。その結果を表3に示す。
(測定条件)
熱機械測定装置(TMA):TMA(ティー・エイ・インスツルメント・ジャパン社製
サンプルサイズ:4.5mm×20mm
モード:引張モード
昇温速度:5℃/分
測定温度範囲:25℃から260℃
考察
実施例1~33および比較例1~比較例23における第1材料に対する第1無機充填材の含有割合(B)と、第2材料に対する第2無機充填材の含有割合(A)との関係を示すグラフを図4に示す。
11 封止用多層樹脂シート
12 第2封止用樹脂シート
Claims (3)
- 第1封止用樹脂シートと、第2封止用樹脂シートとを厚み方向一方に向かって順に備え、
前記第1封止用樹脂シートは、層状ケイ酸塩化合物および第1無機充填材を含み、
前記第2封止用樹脂シートは、層状ケイ酸塩化合物を含まず、第2無機充填材を含み、
前記第1封止用樹脂シートに対する前記第1無機充填材の含有割合(B)は、50質量%以上であり、
前記第2封止用樹脂シートに対する前記第2無機充填材の含有割合(A)は、60質量%以上であり、
前記第1封止用樹脂シートに対する前記第1無機充填材の含有割合(B)と、前記第2封止用樹脂シートに対する前記第2無機充填材の含有割合(A)とが、下記式(1)を満足することを特徴とする、封止用多層樹脂シート。
0.4A+1.7B<160 (1) - 前記第1封止用樹脂シートの厚みが、30μm以上100μm以下であり、
前記第2封止用樹脂シートの厚みが、50μm以上500μm以下であることを特徴とする、請求項1に記載の封止用多層樹脂シート。 - 前記第1封止用樹脂シートの線膨張係数が、80ppm/℃以下であり、
前記第2封止用樹脂シートの線膨張係数が、50ppm/℃以下であることを特徴とする、請求項1に記載の封止用多層樹脂シート。
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JP2009202517A (ja) | 2008-02-29 | 2009-09-10 | Sekisui Chem Co Ltd | 多層絶縁フィルムと多層プリント配線板の製造方法 |
JP2014210880A (ja) | 2013-04-19 | 2014-11-13 | 日東電工株式会社 | 熱硬化性樹脂組成物及び半導体装置の製造方法 |
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