JP2012507864A - 低減した格子ひずみを備えた半導体材料、同様に包含する半導体構造体、デバイス、および、加工された基板を製造する方法 - Google Patents
低減した格子ひずみを備えた半導体材料、同様に包含する半導体構造体、デバイス、および、加工された基板を製造する方法 Download PDFInfo
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Abstract
Description
例えば、加工された基板、集積回路(IC)デバイス、発光デバイスおよび放射線センサデバイスのようなデバイスおよび半導体構造に格子ひずみを結果として生じさせるのに用いることができる方法の必要がある。
本願明細書において、記載される図は、いかなる特定の材料、装置、システムまたは方法の実際の図であるはずではなく、本発明を記載するために使用される単に理想とされた代表だけである。更に、図の間で共通のエレメントは、同じ参照番号を保持できる。
本願明細書において使われる各用語「緩和(relax)」または「緩和した(relaxed)」は、精力的に進歩した方法で方位付けされた非対称のユニット(例えば原子または分子)から成るひずんでいない結晶学的な構造を有する半導体材料のる層を含み、意味する。用語「緩和」は、バルク位置に対して材料の層の原子の位置を変化させることを含み、意味し、その結果、材料内の格子ひずみが、少なくとも部分的に解放され、材料がその平衡格子定数に近づきまたは達する。
Claims (15)
- 半導体構造体またはデバイスを製造する方法であって、
基板の上に従順な材料の層が上に横たわる半導体材料のそうを提供するステップと、
半導体材料の層を通っておよび従順な材料の層を部分的に通って延びる複数の開口部を形成するステップと、
半導体材料の層の残りの部分を緩和させるように従順な材料の層の粘性を変化させるステップと、
半導体材料の層の緩和された部分の上に別の半導体材料を成長させるステップと、
を有することを特徴とする方法。 - 前記半導体材料の層を通っておよび従順な材料の層を部分的に通って延びる複数の開口部を形成するステップが、インジウム窒化ガリウムの層を通っておよびほうりんけい酸ガラスの層を部分的に通って延びる複数の開口部を形成するステップからなることを特徴とする請求項1に記載の方法。
- 前記従順な材料の層の粘性を変化させるステップが、そのガラス転位温度以上の温度まで材料の他の層を加熱するステップを有することを特徴とする請求項1に記載の方法。
- 半導体材料の層の堆積温度以下のガラス転位温度を備えるように従順な材料の層を選択するステップを更に有することを特徴とする請求項1に記載の方法。
- 前記半導体材料の層がインジウム窒化ガリウムからなるように選択するステップを更に有することを特徴とする請求項1に記載の方法。
- 前記別の半導体材料を成長させるステップが、種材料として半導体材料の層の緩和された部分を使用して別の半導体材料を横方向に成長させるステップからなることを特徴とする請求項1に記載の方法。
- 前記別の半導体材料を横方向に成長させるステップが、別の半導体材料に、半導体材料の層の緩和した部分の格子構造を採用させることを特徴とする請求項6に記載の方法。
- 前記半導体材料の層の緩和された部分の上に別の半導体材料を成長させるステップが、半導体材料の連続した層を形成するために別の半導体材料を横方向に堆積させるステップからなることを特徴とする請求項1に記載の方法。
- 半導体材料の層の残りの部分およびその間に露出された従順な材料の層の領域の上に犠牲材料の層を形成するステップと、
半導体材料の層の残りの部分の表面を露出するために犠牲材料の層の一部を除去するステップと
を更に有することを特徴とする請求項1に記載の方法。 - 前記半導体材料の層の残りの部分およびその間に露出された従順な材料の層の領域の上に犠牲材料の層を形成するステップが、III族窒化物プアの核形成の反犠牲材料の層を堆積させるステップからなることを特徴とする請求項9に記載の方法。
- 前記半導体材料の層の残りの部分の表面を露出するために犠牲材料の層の一部を除去するステップが、実質的に平坦な表面を形成するために犠牲材料の層を平坦化するステップからなることを特徴とする請求項9に記載の方法。
- 基板の上に横たわる従順な材料の層の上に堆積されたInGaN半導体材料のエピタキシャル層からなる加工された基板であって、前記半導体材料の層が緩和された格子構造を呈することを特徴とする加工された基板。
- 半導体材料の層が、ガラス材料の層の上に横たわる複数の構造体からなることを特徴とする請求項12に記載の加工された基板。
- 半導体材料の層が、半導体材料の連続したそうからなることを特徴とする請求項12に記載の加工された基板。
- ガラス材料の層の上に堆積された反犠牲材料からなり、半導体材料の層の下に横たわる複数の構造体を更に有することを特徴とする請求項12に記載の加工された基板。
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EP2345060A1 (en) | 2011-07-20 |
US20120319128A1 (en) | 2012-12-20 |
KR20110081236A (ko) | 2011-07-13 |
US9368344B2 (en) | 2016-06-14 |
US20140312463A1 (en) | 2014-10-23 |
EP2345060B1 (en) | 2013-12-04 |
CN102203904B (zh) | 2013-11-20 |
CN102203904A (zh) | 2011-09-28 |
KR101408475B1 (ko) | 2014-06-19 |
JP5907730B2 (ja) | 2016-04-26 |
WO2010056443A1 (en) | 2010-05-20 |
US8278193B2 (en) | 2012-10-02 |
US8836081B2 (en) | 2014-09-16 |
US20100109126A1 (en) | 2010-05-06 |
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