JP6879690B2 - 放熱用樹脂組成物、その硬化物、及びこれらの使用方法 - Google Patents
放熱用樹脂組成物、その硬化物、及びこれらの使用方法 Download PDFInfo
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- JP6879690B2 JP6879690B2 JP2016154987A JP2016154987A JP6879690B2 JP 6879690 B2 JP6879690 B2 JP 6879690B2 JP 2016154987 A JP2016154987 A JP 2016154987A JP 2016154987 A JP2016154987 A JP 2016154987A JP 6879690 B2 JP6879690 B2 JP 6879690B2
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- 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
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Description
本開示の放熱用樹脂組成物及びその硬化物である放熱用硬化物の特性を以下の方法にしたがって評価した。
図5に示すように、アルミ板(60mm×30mm×1mm)上に放熱用樹脂組成物を直径6.0mm、厚さ180μmとなるように塗布し、オーブン内で150℃20分間放置して加熱硬化させた。硬化した放熱用硬化物上にガラス板(18mm×18mm×0.3mm)を置き、その上に4kgの分銅を載せ、80℃のオーブン内で20分間放置した。放置後の放熱用硬化物の直径を測定し、直径が6.1mm未満を不良「×」、6.1mm以上、7.0mm未満を良「△」、7.0mm以上を優良「○」と判定した。
図6に示すように、第1のガラス板(76mm×26mm×1mm)の上に放熱用樹脂組成物を塗布し、スペーサーとなる両面テープを備える第2のガラス板を塗布した放熱用樹脂組成物に対して押し付けて、該組成物の直径が15mm、厚さが100μmになるようなサンプルを作製した。放熱用樹脂組成物をオーブン内で150℃20分間放置して加熱硬化させた後、ガラス面を鉛直方向に向けて80℃のオーブン内で1時間放置し、初期に存在していた領域から放熱用硬化物がどれだけ残留しているかを測定した。放熱用硬化物の残留率が70%未満を不良「×」、70%以上85%未満を良「△」、85%以上を優良「○」と判定した。
放熱用樹脂組成物をシリンジ(PSY−10E、武蔵エンジアリング社製)に入れ、内径0.4mmの針(23G)を取りつけて、エアーディスペンサー(SuperΣx、武蔵エンジニアリング社製)を使用してエアー圧0.3MPaで加圧した。ディスペンサーで放熱用樹脂組成物を押し出せたものを合格「○」、押し出せなかったものを不合格「×」と判定した。
アルミ製ヒートシンク(46.2mm×50mm×21mm、フィン数10枚、フィン厚1.2mm, フィンとフィンの間隔3.8mm,ベース部の厚み2.75mm)に放熱用樹脂組成物を30μmの厚さで塗布し、オーブン内で150℃20分間放置して加熱硬化させ、大電力抵抗測定モジュール(型番:AE−RA1WX16−1R00、秋月電子社製)1Ω(16W)を貼り付け、電圧10V、電流3Aで通電した。ヒートシンクをファンで冷却しながら、ヒートシンクと大電力抵抗モジュールのメタル基板との温度を測定し、定常状態になった際の温度差ΔTを測定した。参考例として、信越シリコーン社製のオイルコンパウンドG−775(3.6W/mK)を用いて同様の測定を行った。
自転・公転ミキサーのあわとり練太郎(登録商標)ARE−310(シンキー社製)を使用し、表1の原料を表2の組成比で各々混合した。
110、210、310、410 放熱用樹脂組成物
120、220、320、420 基材
130 電極
140 導電部材
150、250、350、450 半導体素子
160 引き上げ手段
235、335、435 導電部材
245、345、445 アンダーフィル材料
255 ヒートシンク
365、465 コンデンサ
370 シールド缶
375 シールド缶の蓋
480 筐体
本開示の実施態様の一部を以下の[項目1]−[項目12]に記載する。
[項目1]
(A)成分:エポキシ樹脂、(B)成分:エポキシ樹脂用硬化剤、(C)成分:重量平均分子量10000以下の(メタ)アクリルオリゴマー、及び(D)成分:熱伝導性粒子を含む、放熱用樹脂組成物。
[項目2]
(C)成分が、(C−1)成分:カルボキシル基を有さない重量平均分子量10000以下の(メタ)アクリルオリゴマー及び/又は(C−2)成分:カルボキシル基を有する重量平均分子量10000以下の(メタ)アクリルオリゴマーである、項目1記載の放熱用樹脂組成物。
[項目3]
(A)〜(C)成分の重量分率を、W A 、W B 及びW C とした場合、下記式(1)を満足する、項目1又は2記載の放熱用樹脂組成物。
(C−1)及び(C−2)成分の重量分率をW C−1 及びW C−2 とした場合、下記式(2)を満足する、項目2又は3記載の放熱用樹脂組成物。
(D)成分の重量分率をW D とした場合、下記式(3)を満足する、項目1〜4の何れか一項に記載の放熱用樹脂組成物。
項目1〜5の何れか一項に記載の放熱用樹脂組成物を硬化した放熱用硬化物。
[項目7]
塑性変形を呈する、項目6記載の放熱用硬化物。
[項目8]
項目1〜5の何れか一項に記載の放熱用樹脂組成物又は項目6若しくは7記載の放熱用硬化物を、電極を備える基材に適用する工程(1)と、
適用した放熱用樹脂組成物又は放熱用硬化物上に電極を備える半導体素子を配置し、必要に応じ、加熱及び/又は加圧する工程(2)であって、基材及び半導体素子の電極が導電部材を介して接合される、工程(2)と、
前記工程(1)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(3)と、
任意に、基材及び半導体素子を取り外してリワークする工程(4)と、を備える、半導体素子の実装方法であって、前記硬化する工程(3)が、工程(1)〜工程(2)の何れかで行われる、半導体素子の実装方法。
[項目9]
電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有する半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して配置する工程(1)と、
半導体素子の前記第2面に、項目1〜5の何れか一項に記載の放熱用樹脂組成物又は項目6若しくは7記載の放熱用硬化物を適用する工程(2)と、
加熱及び/又は加圧して半導体素子及び基材を接合する工程(3)であって、該工程(3)が、前記工程(1)又は工程(2)に続いて行われる、工程(3)と、
適用した放熱用樹脂組成物又は放熱用硬化物上にヒートシンクを配置し、必要に応じ、加熱及び/又は加圧する工程(4)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(5)と、
任意に、ヒートシンク及び半導体素子を取り外してリワークする工程(6)と、を備える、半導体素子及びヒートシンクの実装方法であって、前記硬化する工程(5)が、工程(2)〜工程(4)の何れかで行われる、半導体素子及びヒートシンクの実装方法。
[項目10]
シールド缶及び電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有し、前記シールド缶内に配置される半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して配置する工程(1)と、
半導体素子の前記第2面に、項目1〜5の何れか一項に記載の放熱用樹脂組成物又は項目6若しくは7記載の放熱用硬化物を適用する工程(2)と、
加熱及び/又は加圧して半導体素子及び基材を接合する工程(3)であって、該工程(3)が、前記工程(1)又は工程(2)に続いて行われる、工程(3)と、
適用した放熱用樹脂組成物又は放熱用硬化物上にシールド缶の蓋を配置し、必要に応じ、加熱及び/又は加圧する工程(4)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(5)と、
任意に、シールド缶の蓋及び半導体素子を取り外してリワークする工程(6)と、を備える、シールド缶内への半導体素子の実装方法であって、前記硬化する工程(5)が、工程(2)〜工程(4)の何れかで行われる、シールド缶内への半導体素子の実装方法。
[項目11]
電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有する半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して加熱及び/又は加圧して接合する工程(1)と、
半導体素子の前記第2面に、項目1〜5の何れか一項に記載の放熱用樹脂組成物又は項目6若しくは7記載の放熱用硬化物を適用する工程(2)と、
適用した放熱用樹脂組成物又は放熱用硬化物上に筐体を配置し、必要に応じ、加熱及び/又は加圧して、放熱用樹脂組成物又は放熱用硬化物を半導体素子の前記第2面以上の面積に広げる工程(3)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(4)と、
任意に、筐体及び半導体素子を取り外してリワークする工程(5)と、を備える、筐体内への半導体素子の実装方法であって、前記硬化する工程(4)が、工程(2)〜工程(3)の何れかで行われる、筐体内への半導体素子の実装方法。
[項目12]
放熱用樹脂組成物を適用する場合に、ディスペンサーを使用する、項目8〜11の何れか一項に記載の実装方法。
Claims (8)
- 請求項1〜3の何れか一項に記載の放熱用樹脂組成物を硬化した放熱用硬化物。
- 請求項1〜3の何れか一項に記載の放熱用樹脂組成物又は請求項4に記載の放熱用硬化物を、電極を備える基材に適用する工程(1)と、
適用した放熱用樹脂組成物又は放熱用硬化物上に電極を備える半導体素子を配置し、必要に応じ、加熱及び/又は加圧する工程(2)であって、基材及び半導体素子の電極が導電部材を介して接合される、工程(2)と、
前記工程(1)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(3)と、
任意に、基材及び半導体素子を取り外してリワークする工程(4)と、を備える、半導体素子の実装方法であって、前記硬化する工程(3)が、工程(1)〜工程(2)の何れかで行われる、半導体素子の実装方法。 - 電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有する半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して配置する工程(1)と、
半導体素子の前記第2面に、請求項1〜3の何れか一項に記載の放熱用樹脂組成物又は請求項4に記載の放熱用硬化物を適用する工程(2)と、
加熱及び/又は加圧して半導体素子及び基材を接合する工程(3)であって、該工程(3)が、前記工程(1)又は工程(2)に続いて行われる、工程(3)と、
適用した放熱用樹脂組成物又は放熱用硬化物上にヒートシンクを配置し、必要に応じ、加熱及び/又は加圧する工程(4)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(5)と、
任意に、ヒートシンク及び半導体素子を取り外してリワークする工程(6)と、を備える、半導体素子及びヒートシンクの実装方法であって、前記硬化する工程(5)が、工程(2)〜工程(4)の何れかで行われる、半導体素子及びヒートシンクの実装方法。 - シールド缶及び電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有し、前記シールド缶内に配置される半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して配置する工程(1)と、
半導体素子の前記第2面に、請求項1〜3の何れか一項に記載の放熱用樹脂組成物又は請求項4に記載の放熱用硬化物を適用する工程(2)と、
加熱及び/又は加圧して半導体素子及び基材を接合する工程(3)であって、該工程(3)が、前記工程(1)又は工程(2)に続いて行われる、工程(3)と、
適用した放熱用樹脂組成物又は放熱用硬化物上にシールド缶の蓋を配置し、必要に応じ、加熱及び/又は加圧する工程(4)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(5)と、
任意に、シールド缶の蓋及び半導体素子を取り外してリワークする工程(6)と、を備える、シールド缶内への半導体素子の実装方法であって、前記硬化する工程(5)が、工程(2)〜工程(4)の何れかで行われる、シールド缶内への半導体素子の実装方法。 - 電極を備える第1表面を有する基材と、電極を備える第1面及び該第1面と反対側の第2面とを有する半導体素子とを、前記各第1表面が対向するように、アンダーフィル材料及び/又は導電部材を介して加熱及び/又は加圧して接合する工程(1)と、
半導体素子の前記第2面に、請求項1〜3の何れか一項に記載の放熱用樹脂組成物又は請求項4に記載の放熱用硬化物を適用する工程(2)と、
適用した放熱用樹脂組成物又は放熱用硬化物上に筐体を配置し、必要に応じ、加熱及び/又は加圧して、放熱用樹脂組成物又は放熱用硬化物を半導体素子の前記第2面以上の面積に広げる工程(3)と、
前記工程(2)において放熱用樹脂組成物を使用する場合に、該放熱用樹脂組成物を加熱又は電離放射線により硬化する工程(4)と、
任意に、筐体及び半導体素子を取り外してリワークする工程(5)と、を備える、筐体内への半導体素子の実装方法であって、前記硬化する工程(4)が、工程(2)〜工程(3)の何れかで行われる、筐体内への半導体素子の実装方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016154987A JP6879690B2 (ja) | 2016-08-05 | 2016-08-05 | 放熱用樹脂組成物、その硬化物、及びこれらの使用方法 |
US16/320,639 US11124646B2 (en) | 2016-08-05 | 2017-07-24 | Heat-dissipating resin composition, cured product thereof, and method of using same |
PCT/US2017/043499 WO2018026556A2 (en) | 2016-08-05 | 2017-07-24 | Heat-dissipating resin composition, cured product thereof, and method of using same |
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