发明授权
- 专利标题: Sandwich damascene resistor
- 专利标题(中): 三明治镶嵌电阻
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申请号: US14639524申请日: 2015-03-05
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公开(公告)号: US09373674B2公开(公告)日: 2016-06-21
- 发明人: Chang Yong Xiao , Roderick Miller , Jie Chen
- 申请人: GLOBALFOUNDRIES Singapore Pte. Ltd.
- 申请人地址: SG Singapore
- 专利权人: GLOBALFOUNDRIES SINGAPORE PTE.LTD.
- 当前专利权人: GLOBALFOUNDRIES SINGAPORE PTE.LTD.
- 当前专利权人地址: SG Singapore
- 代理机构: Ditthavong & Steiner, P.C.
- 主分类号: H01L27/06
- IPC分类号: H01L27/06 ; H01L27/08 ; H01L49/02 ; H01L23/522
摘要:
A method is provided for forming sandwich damascene resistors in MOL processes and the resulting devices. Embodiments include forming on a substrate a film stack including an interlayer dielectric (ILD), a first dielectric layer, and a sacrifice layer (SL); removing a portion of the SL and the first dielectric layer, forming a first cavity; conformally forming a layer of resistive material in the first cavity and over the SL; depositing a second dielectric layer over the layer of resistive material and filling the first cavity; and removing the second dielectric layer, the layer of resistive material not in the first cavity, and at least a partial depth of the SL
公开/授权文献
- US20150179729A1 SANDWICH DAMASCENE RESISTOR 公开/授权日:2015-06-25
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