Invention Grant
- Patent Title: Process for making self-aligned conductive via structures
- Patent Title (中): 制造自对准导电通孔结构的工艺
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Application No.: US884795Application Date: 1997-06-30
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Publication No.: US6133635APublication Date: 2000-10-17
- Inventor: Subhas Bothra , Jacob Haskell
- Applicant: Subhas Bothra , Jacob Haskell
- Applicant Address: NY Tarrytown
- Assignee: Philips Electronics North America Corp.
- Current Assignee: Philips Electronics North America Corp.
- Current Assignee Address: NY Tarrytown
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L23/522 ; H01L23/532 ; H01L23/48
Abstract:
Disclosed is a process for making a self-aligning conductive via structure in a semiconductor device. The process includes forming a first interconnect metallization layer over an oxide layer. Forming an etch stop layer over the first interconnect metallization layer. Forming a conductive via metallization layer over the etch stop layer. Forming a hard mask layer over the conductive via metallization layer. The process further includes producing a conductive via and an interconnect line, where the conductive via is formed from a portion of the conductive via metallization layer, and the interconnect line is formed from a portion of the first interconnect metallization layer. The conductive via is substantially aligned with the underlying interconnect line.
Public/Granted literature
- US4183828A Catalyst for dehydrocoupling process Public/Granted day:1980-01-15
Information query
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