发明授权
- 专利标题: Method of laser annealing semiconductor layer and semiconductor devices produced thereby
- 专利标题(中): 半导体层的激光退火方法及其制造的半导体器件
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申请号: US12419588申请日: 2009-04-07
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公开(公告)号: US08076186B2公开(公告)日: 2011-12-13
- 发明人: Kian Kiat Lim , Atsushi Nakamura , Kai Pheng Tan , Eng Soon Lim , Poh Ling Fu , Takaaki Kamimura
- 申请人: Kian Kiat Lim , Atsushi Nakamura , Kai Pheng Tan , Eng Soon Lim , Poh Ling Fu , Takaaki Kamimura
- 申请人地址: JP Tokyo
- 专利权人: Toshiba Matsushita Display Technology Co., Ltd.
- 当前专利权人: Toshiba Matsushita Display Technology Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: SG200802817-7 20080409
- 主分类号: H01L21/84
- IPC分类号: H01L21/84
摘要:
A laser annealing method includes forming a nitrogen-doped layer on a semiconductor layer, the nitrogen-doped layer having a nitrogen concentration of at least 3×1020 atoms/cc, irradiating a first area of the nitrogen-doped layer in a low oxygen environment with a laser beam and irradiating a second area of the nitrogen-doped layer in a low oxygen environment with a laser beam, a part of the second area overlapping with the first area.
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