Invention Grant
- Patent Title: Selective silicide formation using resist etch back
- Patent Title (中): 使用抗蚀剂回蚀的选择性硅化物形成
-
Application No.: US12644457Application Date: 2009-12-22
-
Publication No.: US08445372B2Publication Date: 2013-05-21
- 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: H01L21/285
- IPC: H01L21/285 ; H01L21/3205

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
- US20100099249A1 SELECTIVE SILICIDE FORMATION USING RESIST ETCH BACK Public/Granted day:2010-04-22
Information query
IPC分类: