JP2021163782A - 光半導体封止用樹脂成形物およびその製造方法 - Google Patents
光半導体封止用樹脂成形物およびその製造方法 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- 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
- H01L23/293—Organic, e.g. plastic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4215—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof cycloaliphatic
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- H01L31/042—PV modules or arrays of single PV cells
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Abstract
【解決手段】重量平均分子量Mwと数平均分子量Mnの比である分子量分布Mw/Mnが2.7以下である樹脂を含む光半導体封止用樹脂成形物。
【選択図】 なし
Description
光半導体素子と、当該光半導体素子を封止する該光半導体封止材とを備える光半導体装置に関する。
該硬化性樹脂組成物を熱処理する工程と、
該硬化性樹脂組成物を造粒し、粒状硬化性樹脂組成物を得る工程と、
該粒状硬化性樹脂組成物を成形する工程
とを含むことを特徴とする。
エポキシ樹脂1:ビスフェノール型エポキシ樹脂A(エポキシ当量650)
エポキシ樹脂2:トリグリシジルイソシアヌレート(エポキシ当量100)
硬化剤 :テトラヒドロ無水フタル酸(酸無水当量152)
硬化促進剤 :2−エチル−4−メチルイミダゾール
各原料を表1に示す配合量で、表1に記載した温度に設定した押出機で加熱溶解し混合した後、押出機の吐出口から出てきた樹脂を2〜10mm厚で成形し、60℃で60分間熱処理した。押出機中での滞留時間は約2分であった。得られたエポキシ樹脂組成物を、ロールグラニュレータ(日本グラニュレーター社製、テスト機:1531型)にて、造粒と整粒を行うことにより、光半導体封止用エポキシ樹脂組成物を得た。得られた光半導体封止用樹脂組成物を、20号ロータリー打錠機を用いて打錠成形することにより、表1に示す光半導体封止用樹脂タブレットを作製した。圧縮率は、90〜93%であった。
得られたタブレットの一部をテトラヒドロフランに溶解させ、GPC装置(東ソー社製、HLC−8320GPC)を用いて以下の条件で測定し、ポリスチレン換算により数平均分子量Mn、重量平均分子量Mw求めた。
カラム:TSKgel Super HZMH/HZ4000/HZ3000/HZ2000
カラムサイズ:6.0mmI.D.×150mm
溶離液:THF
流量:0.6mL/min
検出器:RI
カラム温度:40℃
注入量:20μL
EMMI(Epoxy Molding Materials Institute)規格1−66に準じ、金型温度150℃、成形圧力970kgf/cm2、硬化時間120s、射出速度2.0cm/sの条件で測定した。具体的には、流動性測定装置を用い、得られたタブレットを粗粉砕して開口径5mmのふるいを通ったパウダーを、150℃に維持したポッドに投入し、プランジャーを一定速度で押し込んでプレスした。測定したトルクから算出した溶融粘度を、時間に対してプロットし、指標粘度800dPa・sから最低溶融粘度を引いた値bと、最低溶融粘度を経て硬化過程で再び800dPa・sに到達するまでの時間aを求めた。
一方、比較例1では、樹脂の分子量分布Mw/Mnが2.9もあり、b/aが18.8と小さいタブレットしか得られなかった。よって、光半導体生産における生産マージンが狭く、安定してトランスファー成形することが難しい。
Claims (7)
- 重量平均分子量Mwと数平均分子量Mnの比である分子量分布Mw/Mnが2.7以下である樹脂を含む光半導体封止用樹脂成形物。
- 前記樹脂の重量平均分子量Mwが3000〜7000であり、数平均分子量Mnが1500〜2600である請求項1記載の光半導体封止用樹脂成形物。
- EMMI(Epoxy Molding Materials Institute)規格1−66に準じ、金型温度150℃、成形圧力970kgf/cm2、硬化時間120s、射出速度2.0cm/sの条件で測定した最低溶融粘度が300dPa・s以下であり、
指標粘度800dPa・sから最低溶融粘度を引いた値bと、最低溶融粘度を経て硬化過程で再び800dPa・sに到達するまでの時間aとの比b/aが20以上である光半導体封止用樹脂成形物。 - 熱硬化性樹脂と硬化剤の反応物、および、硬化促進剤を含む請求項1〜3のいずれか1項に記載の光半導体封止用樹脂成形物。
- 請求項1〜4に記載の光半導体封止用樹脂成形物を成形して得られる光半導体封止材。
- 光半導体素子と、当該光半導体素子を封止する請求項5に記載の光半導体封止材とを備える光半導体装置。
- 熱硬化性樹脂、硬化剤および硬化促進を混練し、硬化性樹脂組成物を得る工程と、
該硬化性樹脂組成物を熱処理する工程と、
該硬化性樹脂組成物を造粒し、粒状硬化性樹脂組成物を得る工程と、
該粒状硬化性樹脂組成物を成形する工程
とを含むことを特徴とする請求項1〜4のいずれか1項に記載の光半導体封止用樹脂成形物の製造方法。
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TW109136698A TW202142665A (zh) | 2020-03-30 | 2020-10-22 | 光半導體密封用樹脂成形物及其製造方法 |
CN202011603806.1A CN113462121A (zh) | 2020-03-30 | 2020-12-29 | 光半导体封装用树脂成型物及其制造方法 |
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