JP2017186203A - 多結晶セラミック基板、接合層付き多結晶セラミック基板および積層基板 - Google Patents
多結晶セラミック基板、接合層付き多結晶セラミック基板および積層基板 Download PDFInfo
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- JP2017186203A JP2017186203A JP2016077130A JP2016077130A JP2017186203A JP 2017186203 A JP2017186203 A JP 2017186203A JP 2016077130 A JP2016077130 A JP 2016077130A JP 2016077130 A JP2016077130 A JP 2016077130A JP 2017186203 A JP2017186203 A JP 2017186203A
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Abstract
Description
0.7<α1/α2<0.9・・・(1)
および関係式(2)
0.7<α3/α4<0.9・・・(2)
のうち少なくともいずれか一方が成立する。
最初に本願発明の実施態様を列記して説明する。本願の多結晶セラミック基板は、化合物半導体基板に対して接合層を介して接合される多結晶セラミック基板である。この多結晶セラミック基板においては、30℃〜300℃における、多結晶セラミック基板の線膨張係数をα1、化合物半導体基板の線膨張係数をα2とし、30℃〜1000℃における、多結晶セラミック基板の線膨張係数をα3、化合物半導体基板の線膨張係数をα4とした場合に、関係式(1)
0.7<α1/α2<0.9・・・(1)
および関係式(2)
0.7<α3/α4<0.9・・・(2)
のうち少なくともいずれか一方が成立する。
次に、本発明にかかる多結晶セラミック基板、接合層付き多結晶セラミック基板および積層基板の一実施の形態を、以下に図面を参照しつつ説明する。なお、以下の図面において同一または相当する部分には同一の参照番号を付しその説明は繰返さない。
0.7<α1/α2<0.9・・・(1)
および関係式(2)
0.7<α3/α4<0.9・・・(2)
のうち少なくともいずれか一方が成立する。
0.7<α1/α2<0.9・・・(1)
が満たされている実施例A〜Cにおいては、接合面積率が95%を超える状態であるのに対し、関係式(1)が満たされない比較例A〜Cにおいては接合面積率が70%以下となっている。
0.7<α3/α4<0.9・・・(2)
が満たされている実施例DおよびEにおいては、接合面積率が95%を超える状態であるのに対し、関係式(2)が満たされない比較例Dにおいては接合面積率が60%となっている。
2 接合層付き多結晶セラミック基板
10 多結晶セラミック基板
10A 主面
20 接合層
20A 主面
30 化合物半導体基板
30A 主面
Claims (10)
- 化合物半導体基板に対して接合層を介して接合される多結晶セラミック基板であって、
30℃〜300℃における、前記多結晶セラミック基板の線膨張係数をα1、前記化合物半導体基板の線膨張係数をα2とし、
30℃〜1000℃における、前記多結晶セラミック基板の線膨張係数をα3、前記化合物半導体基板の線膨張係数をα4とした場合に、関係式(1)
0.7<α1/α2<0.9・・・(1)
および関係式(2)
0.7<α3/α4<0.9・・・(2)
のうち少なくともいずれか一方が成立する、多結晶セラミック基板。 - ヤング率が200GPa以上である、請求項1に記載の多結晶セラミック基板。
- 前記接合層は珪素を含む酸化物からなる、請求項1または2に記載の多結晶セラミック基板。
- スピネル、アルミナ、マグネシア、シリカ、ムライト、コージェライト、カルシア、チタニア、窒化珪素、窒化アルミニウムおよび炭化珪素からなる群から選択される1種以上の材料から構成される、請求項1〜3のいずれか1項に記載の多結晶セラミック基板。
- 前記化合物半導体基板は、ガリウム砒素、窒化ガリウムおよびインジウムリンからなる群から選択されるいずれか1種の化合物半導体からなる、請求項1〜4のいずれか1項に記載の多結晶セラミック基板。
- 前記化合物半導体基板はガリウム砒素からなり、前記関係式(1)が成立する、請求項1〜4のいずれか1項に記載の多結晶セラミック基板。
- 前記化合物半導体基板は窒化ガリウムからなり、前記関係式(2)が成立する、請求項1〜4のいずれか1項に記載の多結晶セラミック基板。
- 前記化合物半導体基板はインジウムリンからなり、前記関係式(2)が成立する、請求項1〜4のいずれか1項に記載の多結晶セラミック基板。
- 請求項1〜8のいずれか1項に記載の多結晶セラミック基板と、
前記多結晶セラミック基板の主面上に形成された前記接合層と、を備える、接合層付き多結晶セラミック基板。 - 請求項1〜8のいずれか1項に記載の多結晶セラミック基板と、
前記多結晶セラミック基板の主面上に形成された前記接合層と、
前記接合層上に配置された前記化合物半導体基板と、を備え、
前記多結晶セラミック基板と前記化合物半導体基板とは、前記接合層により接合されている、積層基板。
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| JP2016077130A JP6662160B2 (ja) | 2016-04-07 | 2016-04-07 | 多結晶セラミック基板、接合層付き多結晶セラミック基板および積層基板 |
| US16/091,241 US11545356B2 (en) | 2016-04-07 | 2017-04-05 | Polycrystalline ceramic substrate, bonding-layer-including polycrystalline ceramic substrate, and laminated substrate |
| PCT/JP2017/014255 WO2017175801A1 (ja) | 2016-04-07 | 2017-04-05 | 多結晶セラミック基板、接合層付き多結晶セラミック基板および積層基板 |
| TW106111765A TWI709672B (zh) | 2016-04-07 | 2017-04-07 | 多晶陶瓷基板、附加有接合層的多晶陶瓷基板及積層基板 |
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| WO2017175801A1 (ja) | 2017-10-12 |
| TWI709672B (zh) | 2020-11-11 |
| US20190131123A1 (en) | 2019-05-02 |
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