发明申请
US20090267200A1 METHOD FOR MANUFACTURING A SEMICONDUCTOR SUBSTRATE INCLUDING LASER ANNEALING
有权
用于制造包括激光退火的半导体衬底的方法
- 专利标题: METHOD FOR MANUFACTURING A SEMICONDUCTOR SUBSTRATE INCLUDING LASER ANNEALING
- 专利标题(中): 用于制造包括激光退火的半导体衬底的方法
-
申请号: US12110740申请日: 2008-04-28
-
公开(公告)号: US20090267200A1公开(公告)日: 2009-10-29
- 发明人: Thomas Gutt , Frank Umbach , Hans Peter Felsl , Manfred Pfaffenlehner , Franz-Josef Niedernostheide , Holger Schulze
- 申请人: Thomas Gutt , Frank Umbach , Hans Peter Felsl , Manfred Pfaffenlehner , Franz-Josef Niedernostheide , Holger Schulze
- 申请人地址: AT Villach
- 专利权人: INFINEON TECHNOLOGIES AUSTRIA AG
- 当前专利权人: INFINEON TECHNOLOGIES AUSTRIA AG
- 当前专利权人地址: AT Villach
- 主分类号: H01L21/265
- IPC分类号: H01L21/265 ; H01L29/36
摘要:
A method for manufacturing a semiconductor device by laser annealing. One embodiment provides a semiconductor substrate having a first surface and a second surface. The second surface is arranged opposite to the first surface. A first dopant is introduced into the semiconductor substrate at the second surface such that its peak doping concentration in the semiconductor substrate is located at a first depth with respect to the second surface. A second dopant is introduced into the semiconductor surface at the second surface such that its peak doping concentration in the semiconductor substrate is located at a second depth with respect to the second surface, wherein the first depth is larger than the second depth. At least a first laser anneal is performed by directing at least one laser beam pulse onto the second surface to melt the semiconductor substrate, at least in sections, at the second surface.
公开/授权文献
信息查询
IPC分类: