The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 16, 2017

Filed:

Dec. 04, 2016
Applicant:

Ememory Technology Inc., Hsin-Chu, TW;

Inventors:

Chun-Yuan Lo, Taipei, TW;

Wei-Chen Chang, Kaohsiung, TW;

Shih-Chen Wang, Taipei, TW;

Assignee:

eMemory Technology Inc., Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/16 (2006.01); G11C 16/26 (2006.01); G11C 16/10 (2006.01); H01L 23/528 (2006.01); H01L 27/02 (2006.01); H01L 27/11517 (2017.01);
U.S. Cl.
CPC ...
G11C 16/16 (2013.01); G11C 16/10 (2013.01); G11C 16/26 (2013.01); H01L 23/528 (2013.01); H01L 27/0207 (2013.01); H01L 27/11517 (2013.01);
Abstract

A memory cell includes a coupling device, a read transistor, a first read selection transistor, a second read selection transistor, an erase device, a program transistor, and a program selection transistor. The coupling device is formed on a first doped region. The erase device is formed on a second doped region. The read transistor, the first read selection transistor, the second read selection transistor, the program transistor, and the program selection transistor are formed on a third doped region. A gate terminal of the coupling device is coupled to a common floating gate. A gate terminal of the erase device is coupled to the floating gate. During a program operation, electrical charges are moved from the common floating gate. During an erase operation, electrical charges are ejected from the common floating gate to the erase device.


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