Invention Grant
US09302348B2 Ultrafast laser annealing with reduced pattern density effects in integrated circuit fabrication
有权
在集成电路制造中具有降低图案密度效应的超快速激光退火
- Patent Title: Ultrafast laser annealing with reduced pattern density effects in integrated circuit fabrication
- Patent Title (中): 在集成电路制造中具有降低图案密度效应的超快速激光退火
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Application No.: US13646673Application Date: 2012-10-06
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Publication No.: US09302348B2Publication Date: 2016-04-05
- Inventor: Yun Wang , Andrew M. Hawryluk
- Applicant: Yun Wang , Andrew M. Hawryluk
- Applicant Address: US CA San Jose
- Assignee: Ultratech Inc.
- Current Assignee: Ultratech Inc.
- Current Assignee Address: US CA San Jose
- Agency: Opticus IP Law PLLC
- Main IPC: F27D11/00
- IPC: F27D11/00 ; B23K26/00 ; B23K26/12 ; B23K26/18 ; H01L21/268 ; H01L21/28 ; H01L21/324 ; B23K26/03 ; B23K26/06 ; B23K26/073 ; B23K26/08

Abstract:
Systems and methods for performing ultrafast laser annealing in a manner that reduces pattern density effects in integrated circuit manufacturing are disclosed. The method includes scanning at least one first laser beam over the patterned surface of a substrate. The at least one first laser beam is configured to heat the patterned surface to a non-melt temperature Tnonmelt that is within about 400° C. of the melt temperature Tmelt. The method also includes scanning at least one second laser beam over the patterned surface and relative to the first laser beam. The at least one second laser beam is pulsed and is configured to heat the patterned surface from the non-melt temperature provided by the at least one first laser beam up to the melt temperature.
Public/Granted literature
- US20140097171A1 Ultrafast laser annealing with reduced pattern density effects in integrated circuit fabrication Public/Granted day:2014-04-10
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