Invention Grant
- Patent Title: Non-volatile memory cell with high bit density
- Patent Title (中): 具有高位密度的非易失性存储单元
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Application No.: US13556810Application Date: 2012-07-24
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Publication No.: US08760917B2Publication Date: 2014-06-24
- Inventor: Igor Lusetsky
- Applicant: Igor Lusetsky
- Applicant Address: SG Singapore
- Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Ditthavong Mori & Steiner, P.C.
- Main IPC: G11C16/04
- IPC: G11C16/04

Abstract:
A non-volatile memory cell with high bit density is disclosed. Embodiments include: providing a transistor having a wordline gate structure over a substrate, first and second floating gate structures proximate opposite sides of the wordline gate structure, and first and second diffusion regions in the substrate, wherein the wordline gate structure, the first floating gate structure, and the second floating gate structure are laterally between the first and second diffusion regions; and providing a capacitor having first, second, and third control gate structures over the substrate, a third floating gate structure between the first and second control gate structures, a fourth floating gate structure between the second and third control gate structures, and third and fourth diffusion regions in the substrate, wherein the first, second, and third control gate structures are laterally between the third and fourth diffusion regions.
Public/Granted literature
- US20140029354A1 NON-VOLATILE MEMORY CELL WITH HIGH BIT DENSITY Public/Granted day:2014-01-30
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