Three-dimensional vertical NOR Flash Thin-Film Transistor Strings

a transistor string and three-dimensional vertical technology, applied in semiconductor devices, semiconductor/solid-state device details, instruments, etc., can solve the problems of limiting affecting the performance of the transistor, and reducing the number of transistors that can be programmed in parallel, so as to reduce the sensitivities to read disturbance, reduce the cost per bit, and reduce read-latency
US20190244971A1Active Publication Date: 2019-08-08SUNRISE MEMORY CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SUNRISE MEMORY CORP
Publication Date
2019-08-08

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Abstract

A memory structure, includes active columns of polysilicon formed above a semiconductor substrate, each active column includes one or more vertical NOR strings, with each NOR string having thin-film storage transistors sharing a local source line and a local bit line, the local bit line is connected by one segment of a segmented global bit line to a sense amplifier provided in the semiconductor substrate.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] The present application is a continuation-in-part application of copending U.S. patent application (“Non-Provisional application I”), Ser. No. 16 / 107,732, entitled “Three-dimensional vertical NOR Flash Thin-Film Transistor Strings,” filed on Aug. 21, 2018, which is a continuation application of U.S. patent application Ser. No. 15 / 837,734 entitled “Three-dimensional vertical NOR Flash Thin-Film Transistor Strings,” filed on Dec. 11, 2017, now U.S. Pat. No. 10,096,364, which is a divisional application of U.S. patent application, Ser. No. 15 / 343,332, entitled “Three-dimensional vertical NOR Flash Thin-Film Transistor Strings,” filed on Nov. 4, 2016, now U.S. Pat. No. 9,842,651, which claims priority of (i) U.S. provisional patent application (“Provisional application I”), Ser. No. 62 / 260,137, entitled “Three-dimensional Vertical NOR Flash Thin-film Transistor Strings,” filed on Nov. 25, 2015; (ii) copending U.S. non-provisional patent appli...

Claims

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