Invention Grant
- Patent Title: Sandwich damascene resistor
- Patent Title (中): 三明治镶嵌电阻
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Application No.: US13738604Application Date: 2013-01-10
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Publication No.: US09012293B2Publication Date: 2015-04-21
- Inventor: Chang Yong Xiao , Roderick Miller , Jie Chen
- Applicant: GLOBALFOUNDARIES Singapore Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H01L21/20
- IPC: H01L21/20 ; H01L21/76 ; H01L27/11 ; H01L29/00 ; H01L49/02 ; H01L23/522

Abstract:
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.
Public/Granted literature
- US20140191367A1 SANDWICH DAMASCENE RESISTOR Public/Granted day:2014-07-10
Information query
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