Invention Grant
- Patent Title: Selective silicide formation using resist etchback
- Patent Title (中): 使用抗蚀剂回蚀的选择性硅化物形成
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Application No.: US11924823Application Date: 2007-10-26
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Publication No.: US07691751B2Publication Date: 2010-04-06
- Inventor: Kyunghoon Min , Angela Hui , Hiroyuki Kinoshita , Ning Cheng , Mark Chang
- Applicant: Kyunghoon Min , Angela Hui , Hiroyuki Kinoshita , Ning Cheng , Mark Chang
- Applicant Address: US CA Sunnyvale
- Assignee: Spansion LLC
- Current Assignee: Spansion LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Turocy & Watson, LLP
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
Methods of selectively forming metal silicides on a memory device are provided. The methods can include forming a mask layer over the memory device; forming a patterned resist over the mask layer; removing upper portions of the patterned resist; forming a patterned mask layer by removing portions of the mask layer that are not covered by the patterned resist; and forming metal silicides on the memory device by a chemical reaction of a metal layer formed on the memory device with portions of the memory device that are not covered by the patterned mask layer. By preventing silicidation of underlying silicon containing layers/components of the memory device that are covered by the patterned mask layer, the methods can selectively form the metal silicides on the desired portions of the memory device.
Public/Granted literature
- US20090111265A1 SELECTIVE SILICIDE FORMATION USING RESIST ETCHBACK Public/Granted day:2009-04-30
Information query
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