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US Patent 7915660 Junction-free NAND flash memory and fabricating method thereof

Patent 7915660 was granted and assigned to Powerchip Semiconductor on March, 2011 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Powerchip Semiconductor
Powerchip Semiconductor
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7915660
Patent Inventor Names
Houng-Chi Wei0
Shih-Hsiang Lin0
Shi-Hsien Chen0
Hsin-Heng Wang0
Date of Patent
March 29, 2011
Patent Application Number
12468074
Date Filed
May 19, 2009
Patent Primary Examiner
‌
Sue A. Purvis
Patent abstract

A junction-free NAND flash memory is described, including a substrate, memory cells, source/drain inducing (SDI) gates electrically connected with each other, and a dielectric material layer. The memory cells are disposed on the substrate, wherein each memory cell includes a charge storage layer. Each SDI gate is disposed between two neighboring memory cells. The dielectric material layer is disposed between the memory cells and the SDI gates and between the SDI gates and the substrate.

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