发明授权
US06211083B1 Use of a novel capped anneal procedure to improve salicide formation
有权
使用新型封端退火方法来改善自杀化合物的形成
- 专利标题: Use of a novel capped anneal procedure to improve salicide formation
- 专利标题(中): 使用新型封端退火方法来改善自杀化合物的形成
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申请号: US09550263申请日: 2000-04-17
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公开(公告)号: US06211083B1公开(公告)日: 2001-04-03
- 发明人: Jiunn-Der Yang , Chaucer Chung , Yuan-Chang Huang
- 申请人: Jiunn-Der Yang , Chaucer Chung , Yuan-Chang Huang
- 主分类号: H01L214763
- IPC分类号: H01L214763
摘要:
A process for forming a low resistance, titanium disilicide layer, on regions of a MOSFET device, has been developed. The process features the deposition of a capping, silicon oxide layer, on first phase, high resistance, titanium disilicide regions. The capping, silicon oxide layer, featuring a compressive stress, reduces the risk of titanium disilicide regions, formed with a tensile stress, from adhesion loss, or peeling, from underlying regions of the MOSFET device, such as from the top surface of a narrow width, polysilicon gate structure. In addition the capping silicon oxide layer protects underlying titanium disilicide regions from the ambient used during the anneal cycle used to convert the first phase, high resistance, titanium disilicide region, to the second phase, low resistance, titanium disilicide region.
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