JP2014051636A - 硬化性シリコーン組成物、半導体デバイスの製造方法、および半導体デバイス - Google Patents
硬化性シリコーン組成物、半導体デバイスの製造方法、および半導体デバイス Download PDFInfo
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- JP2014051636A JP2014051636A JP2012198803A JP2012198803A JP2014051636A JP 2014051636 A JP2014051636 A JP 2014051636A JP 2012198803 A JP2012198803 A JP 2012198803A JP 2012198803 A JP2012198803 A JP 2012198803A JP 2014051636 A JP2014051636 A JP 2014051636A
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- semiconductor device
- curable silicone
- silicone composition
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Abstract
【解決手段】(A)2個以上のケイ素原子結合アルケニル基を有し他のケイ素原子結合基が独立に炭素原子数1〜10のアルキル基で25℃の粘度が10〜100,000mPa・sの直鎖状オルガノポリシロキサン、およびSiO4/2単位、R1 2R2SiO1/2単位およびR1 3SiO1/2単位からなり、アルケニル基を1.5〜5.0質量%含むレジン状オルガノポリシロキサン(B)2個以上のケイ素原子結合水素原子を有し、他のケイ素原子結合基が独立に炭素原子数1〜10のアルキル基であるオルガノポリシロキサン(C)分子鎖末端にアルケニル基を有し、25℃の粘度が2〜10mm2/sの直鎖状ジアルキルポリシロキサン(D)ヒドロシリル化触媒を含む硬化性シリコーン組成物。
【選択図】図4
Description
(A)(A−1)一分子中に少なくとも2個のケイ素原子結合アルケニル基を有し、アルケニル基以外のケイ素原子に結合する基がそれぞれ独立に炭素原子数1〜10のアルキル基であり、25℃における粘度が10〜100,000mPa・sである直鎖状オルガノポリシロキサン 30〜70質量%、および(A−2)SiO4/2単位、R1 2R2SiO1/2単位およびR1 3SiO1/2単位(式中、R1はそれぞれ独立に炭素原子数1〜10のアルキル基であり、R2はアルケニル基である)からなり、アルケニル基を1.5〜5.0質量%含有するレジン状オルガノポリシロキサン 70〜30質量%からなるオルガノポリシロキサン 100質量部、
(B)一分子中に少なくとも2個のケイ素原子結合水素原子を有し、水素原子以外のケイ素原子に結合する基がそれぞれ独立に炭素原子数1〜10のアルキル基であるオルガノポリシロキサン{(A)成分中のアルケニル基の合計1モルに対して、本成分中のケイ素原子結合水素原子が0.5〜5モルとなる量}、
(C)分子鎖両末端にアルケニル基を有し、25℃における粘度が2〜10mm2/sである直鎖状ジアルキルポリシロキサン 0.5〜12質量部、および
(D)触媒量のヒドロシリル化反応用触媒
を少なくとも含有することを特徴とする。
(A)成分のオルガノポリシロキサンは本組成物の主成分であり、(A−1)一分子中に少なくとも2個のケイ素原子結合アルケニル基を有し、アルケニル基以外のケイ素原子に結合する基がそれぞれ独立に炭素原子数1〜10のアルキル基であり、25℃における粘度が10〜100,000mPa・sである直鎖状オルガノポリシロキサン 30〜70質量%および(A−2)SiO4/2単位、R1 2R2SiO1/2単位およびR1 3SiO1/2単位(式中、R1はそれぞれ独立に炭素原子数1〜10のアルキル基であり、R2はアルケニル基である)からなり、アルケニル基を1.5〜5.0質量%含有するレジン状オルガノポリシロキサン 30〜70質量%からなる。
本発明の半導体デバイスの製造方法は、上記の硬化性シリコーン組成物により半導体素子を封止する工程を含むことを特徴とする。特に、圧縮成型により、上記の硬化性シリコーン組成物によって半導体デバイス封止することが好ましい。このような半導体デバイスを封止する方法としては、例えば、発光素子又は受光素子が実装された支持体を、前記素子に対向する位置にキャビティを有し、該キャビティの形状に変形した離型フィルムを密着した型の前記離型フィルム上に硬化性シリコーン組成物を充填し、次いで前記支持体を前記型に圧接した状態で前記組成物を成形することにより、硬化物で封止された半導体デバイスを得る方法が挙げられる。
また、硬化物の特性は次のようにして測定した。
硬化性シリコーン組成物を150℃で1時間加熱して硬化物を作製した。この硬化物の硬さをJIS K 6253に規定されたタイプAデュロメータを用いて測定した。
硬化性シリコーン組成物を150℃で1時間加熱することにより、厚さ1mmのシート状硬化物を作製した。このシート状硬化物を新東科学株式会社製の表面性測定機トライボギアTYPE14DRにセットし、ボール圧子によって200gの荷重をかけながら、2,000mm/分の速度で水平方向へ滑らせたときの動摩擦係数(μk)を測定した。
硬化性シリコーン組成物を150℃で1時間加熱して5mm角のブロック状硬化物を作製した。このブロック状硬化物に住友3M株式会社製のダイニオン(登録商標)TFマイクロパウダーTF9205(平均粒径8μm)を付着させた。パウダーが付着した試料からエアブローにより余分なパウダーを吹き飛ばし、残存したパウダーの付着量を測定し、粉付着量とした。
硬化性シリコーン組成物を用いて、圧縮成型方法により、半導体素子を封止した。すなわち、圧縮成型装置に備え付けられている上金型と下金型を130℃に加熱した。下金型には、ドーム形状が彫られた金型を用いた。LEDチップを搭載した基板を、LEDチップが下を向くように上金型にセットした。エチレン−テトラフルオロエチレン共重合樹脂(ETFE)製の離型フィルム(AFLEX 50LM)を下金型の上にセットし、離型フィルムをエア吸引によって下金型に吸着させた。硬化性シリコーン組成物を離型フィルム上に注いだ後、上金型と下金型を合わせ、基板を狭持した状態で、130℃で3MPaの荷重をかけて3分間シリコーン組成物を圧縮成型した。その後、シリコーン樹脂で封止した基板を金型から取り出し、これを150℃のオーブンで1時間加熱し、硬化性シリコーン組成物を硬化させた。得られた硬化物に住友3M株式会社製のダイニオン(登録商標)TFマイクロパウダーTF9205(平均粒径8μm)を振りかけた。その後、前記の硬化物に付着したパウダーにエアブローを行って余分なパウダーを吹き飛ばし、残存したパウダーの付着状況を目視で観察した。パウダーの付着が観察された場合を×、観察されなかった場合を○として示した。
硬化性シリコーン組成物を用いて、圧縮成型方法により、半導体素子を封止した。すなわち、圧縮成型装置に備え付けられている上金型と下金型を130℃に加熱した。下金型には、ドーム形状が10列×10行に配置された100個彫られた金型を用いた。各ドームがLEDチップを封止することができるような10列×10行の配置にLEDを搭載した基板を、LEDチップが下を向くように上金型にセットした。エチレン−テトラフルオロエチレン共重合樹脂(ETFE)製の離型フィルム(AFLEX 50LM)を下金型の上にセットし、離型フィルムをエア吸引によって下金型に吸着させた。硬化性シリコーン組成物を離型フィルム上に注いだ後、上金型と下金型を合わせ、基板を狭持した状態で、130℃で3MPaの荷重をかけて3分間シリコーン組成物を圧縮成型した。その後、シリコーン樹脂で封止した基板を金型から取り出し、これを150℃のオーブンで1時間加熱処理し、平坦部分およびその上にドーム形状を有する実施例1および比較例1記載の硬化性シリコーン組成物の硬化物で封止された半導体デバイスを得た。得られた硬化物に住友3M株式会社製のダイニオン(登録商標)TFマイクロパウダーTF9205(平均粒径8μm)を振りかけた。その後、シリコーン硬化物に付着したパウダーにエアブローを行って余分なパウダーを吹き飛ばし、残存したパウダーの付着状況を光学顕微鏡で観察した。パウダーの付着が観察された場合を×、観察されなかった場合を○として示した。
上記半導体デバイスの製造法(その2)で作製した樹脂封止したLEDデバイスの平坦部分をディスコ社製ダイシング装置DAD651およびディスコ社製ブレード(B1A862SS)を用いて、送り速度3mm/秒にてブレードダイシングによって半導体デバイスを個片化した後、スピンナー洗浄装置によって洗浄および乾燥させた。得られたLEDデバイスを封止している硬化したシリコーン樹脂の表面を光学顕微鏡で観察した。パウダーの付着が観察された場合を×、観察されなかった場合を○として示した。
次の成分を表1に示す配合量で均一に混合して硬化性シリコーン組成物を調製した。これらの硬化性シリコーン組成物の硬化物を作製し、上記のように評価した。また、これらの硬化性シリコーン組成物を用いて、上記の製造方法(その1)〜(その3)により半導体デバイスを製造した。これらの結果を表1に示した。
(A−1−2)成分:粘度11,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルポリシロキサン(ビニル基の含有量=0.14質量%)
(A−1−3)成分:粘度65mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルポリシロキサン(ビニル基の含有量=1.5質量%)
(A−2−1)成分:平均単位式:
[(CH3)2CH2=CHSiO1/2]0.13[(CH3)3SiO1/2]0.45(SiO4/2)0.42
で表され、重量平均分子量がおよそ5,500のオルガノポリシロキサンレジン(ビニル基の含有量=3.4質量%)
(A−2−2)成分:平均単位式:
[(CH3)2CH2=CHSiO1/2]0.15[(CH3)3SiO1/2]0.38(SiO4/2)0.47
で表され、重量平均分子量がおよそ20,000のオルガノポリシロキサン(ビニル基の含有量=4.2質量%)
(B−1)成分:平均単位式:
[H(CH3)2SiO1/2]8(SiO4/2)4
で表され、動粘度18mm2/sのオルガノポリシロキサン(ケイ素原子結合水素原子の含有量=約0.97質量%)
(B−2)成分:動粘度5mm2/sの分子鎖両末端トリメチルシロキシ基封鎖メチルハイドロジェンシロキサン共重合体(ケイ素原子結合水素原子含有量=約1.4質量%)
(B−3)成分:動粘度21mm2/sの分子鎖両末端トリメチルシロキシ基封鎖ポリメチルハイドロジェンシロキサン(ケイ素原子結合水素原子の含有量=約1.57質量%)
(B−4)成分:平均組成式:
[H(CH3)SiO]4.9
で表される動粘度1mm2/sのメチルハイドロジェンシクロシロキサン(ケイ素原子結合水素原子の含有量=約1.66質量%)
(C−1)成分:動粘度5mm2/sの分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン重合体(ビニル基の含有量=約7.7質量%)
(C−2)成分:平均組成式:
[(CH3)CH2=CHSiO]4
で表される動粘度3.1mm2/sメチルビニルシクロシロキサン
(C−3)成分:動粘度が2mm2/sの1,3−ジビニルテトラメチルジシロキサン
(C−4)成分:動粘度が0.65mm2/sのヘキサメチルジシロキサン
(D−1)成分:白金の1,3−ジビニルテトラメチルジシロキサン錯体の1,3−ジビニルテトラメチルジシロキサン溶液(白金金属の含有量=約4,000ppm)
(E−1)成分:1−エチニルシクロヘキサン−1−オール
2 LEDチップ
3 ボンディングワイヤ
4 型
5 離型フィルム
6 硬化性シリコーン組成物
7 硬化物
Claims (7)
- (A)(A−1)一分子中に少なくとも2個のケイ素原子結合アルケニル基を有し、アルケニル基以外のケイ素原子に結合する基がそれぞれ独立に炭素原子数1〜10のアルキル基から選択される基であり、25℃における粘度が10〜100,000mPa・sである直鎖状オルガノポリシロキサン 30〜70質量%、および(A−2)SiO4/2単位、R1 2R2SiO1/2単位およびR1 3SiO1/2単位(式中、R1はそれぞれ独立に炭素原子数1〜10のアルキル基から選択される基であり、R2はアルケニル基である)からなり、アルケニル基を1.5〜5.0質量%含有するレジン状オルガノポリシロキサン 70〜30質量%からなるオルガノポリシロキサン 100質量部、
(B)一分子中に少なくとも2個のケイ素原子結合水素原子を有し、水素原子以外のケイ素原子に結合する基がそれぞれ独立に炭素原子数1〜10のアルキル基から選択される基であるオルガノポリシロキサン{(A)成分中のアルケニル基の合計1モルに対して、本成分中のケイ素原子結合水素原子が0.5〜5モルとなる量}、
(C)分子鎖両末端にアルケニル基を有し、25℃における粘度が2〜10mm2/sである直鎖状ジアルキルポリシロキサン 0.5〜12質量部、および
(D)触媒量のヒドロシリル化反応用触媒
を少なくとも含有する硬化性シリコーン組成物。 - (A−2)成分が、SiO4/2単位1モルに対するR1 2R2SiO1/2単位およびR1 3SiO1/2単位の合計モル数が0.5〜1.4であるレジン状オルガノポリシロキサンである、請求項1記載の硬化性シリコーン組成物。
- 硬化物のJIS K6253に準拠して測定したタイプAデュロメータ硬さが60以上且つ95以下である、請求項1または2記載の硬化性シリコーン組成物。
- 請求項1乃至3のいずれか1項記載の硬化性シリコーン組成物により半導体素子を封止する工程を含むことを特徴とする、半導体デバイスの製造方法。
- 圧縮成型により、半導体素子を硬化性シリコーン組成物で封止する工程を含むことを特徴とする、請求項4記載の半導体デバイスの製造方法。
- 半導体デバイスを硬化性シリコーン組成物で封止した後、さらに、前記半導体デバイスをブレードダイシングして個片の半導体デバイスとする工程をさらに含むことを特徴とする、請求項4または5記載の半導体デバイスの製造方法。
- 請求項4乃至6のいずれか1項に記載の方法により得られる半導体デバイス。
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JP2021011510A (ja) * | 2019-07-03 | 2021-02-04 | ダウ・東レ株式会社 | シリコーンゲル組成物、その硬化物、電子部品封止剤、電子部品、および半導体チップの保護方法 |
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CN108699421B (zh) * | 2016-02-23 | 2021-10-29 | 美国陶氏有机硅公司 | 选择性粘附硅橡胶 |
US11453149B2 (en) * | 2017-08-24 | 2022-09-27 | Dow Silicones Corporation | Injection moldable silicone composition |
EP3831908A1 (en) * | 2018-08-01 | 2021-06-09 | Shin-Etsu Chemical Co., Ltd. | Silicone adhesive agent composition, and adhesive tape or adhesive film using same |
Family Cites Families (4)
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JP4519869B2 (ja) * | 2007-03-05 | 2010-08-04 | 株式会社東芝 | 半導体装置 |
TWI458780B (zh) | 2007-07-31 | 2014-11-01 | Dow Corning Toray Co Ltd | 提供高透明矽酮硬化物之硬化性矽酮組合物 |
JP5136963B2 (ja) * | 2008-03-24 | 2013-02-06 | 信越化学工業株式会社 | 硬化性シリコーンゴム組成物及び半導体装置 |
JP5475295B2 (ja) | 2009-02-02 | 2014-04-16 | 東レ・ダウコーニング株式会社 | 高透明のシリコーン硬化物を与える硬化性シリコーン組成物 |
-
2012
- 2012-09-10 JP JP2012198803A patent/JP2014051636A/ja not_active Withdrawn
-
2013
- 2013-09-06 US US14/426,890 patent/US20150235872A1/en not_active Abandoned
- 2013-09-06 EP EP13770978.8A patent/EP2892946A2/en not_active Withdrawn
- 2013-09-06 MY MYPI2015000456A patent/MY180275A/en unknown
- 2013-09-06 WO PCT/JP2013/074781 patent/WO2014038728A2/en active Application Filing
- 2013-09-06 CN CN201380044524.4A patent/CN104603181A/zh active Pending
- 2013-09-06 KR KR1020157006054A patent/KR101907378B1/ko active IP Right Grant
- 2013-09-09 TW TW102132492A patent/TW201410745A/zh unknown
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019111712A1 (ja) * | 2017-12-05 | 2019-06-13 | 信越化学工業株式会社 | 硬化性シリコーン剥離剤組成物 |
JP2019099715A (ja) * | 2017-12-05 | 2019-06-24 | 信越化学工業株式会社 | 硬化性シリコーン剥離剤組成物 |
US11459459B2 (en) | 2017-12-05 | 2022-10-04 | Shin-Etsu Chemical Co., Ltd. | Curable silicone release composition |
CN112111156A (zh) * | 2019-06-20 | 2020-12-22 | 信越化学工业株式会社 | 室温固化型硅橡胶组合物 |
CN112111156B (zh) * | 2019-06-20 | 2024-04-26 | 信越化学工业株式会社 | 室温固化型硅橡胶组合物 |
JP2021011510A (ja) * | 2019-07-03 | 2021-02-04 | ダウ・東レ株式会社 | シリコーンゲル組成物、その硬化物、電子部品封止剤、電子部品、および半導体チップの保護方法 |
JP7365798B2 (ja) | 2019-07-03 | 2023-10-20 | ダウ・東レ株式会社 | シリコーンゲル組成物、その硬化物、電子部品封止剤、電子部品、および半導体チップの保護方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20150054811A (ko) | 2015-05-20 |
TW201410745A (zh) | 2014-03-16 |
WO2014038728A3 (en) | 2014-05-01 |
EP2892946A2 (en) | 2015-07-15 |
CN104603181A (zh) | 2015-05-06 |
US20150235872A1 (en) | 2015-08-20 |
MY180275A (en) | 2020-11-26 |
WO2014038728A2 (en) | 2014-03-13 |
KR101907378B1 (ko) | 2018-10-12 |
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