Invention Grant
- Patent Title: Non-volatile memory with silicided bit line contacts
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Application No.: US15489695Application Date: 2017-04-17
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Publication No.: US10692877B2Publication Date: 2020-06-23
- Inventor: Ching-Huang Lu , Simon S. Chan , Hidehiko Shiraiwa , Lei Xue
- Applicant: Cypress Semiconductor Corporation
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: H01L21/26
- IPC: H01L21/26 ; H01L27/11568 ; H01L21/28 ; H01L29/423 ; H01L21/265 ; H01L29/66 ; H01L29/792 ; H01L21/02 ; H01L21/3205 ; H01L23/528 ; H01L23/532 ; H01L29/51

Abstract:
An approach to use silicided bit line contacts that do not short to the underlying substrate in memory devices. The approach provides for silicide formation in the bit line contact area, using a process that benefits from being self-aligned to the oxide-nitride-oxide (ONO) nitride edges. A further benefit of the approach is that the bit line contact implant and rapid temperature anneal process can be eliminated. This approach is applicable to embedded flash, integrating high density devices and advanced logic processes.
Public/Granted literature
- US20170250192A1 Non-Volatile Memory With Silicided Bit Line Contacts Public/Granted day:2017-08-31
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