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.
Patent No.:
Date of Patent:
Jul. 09, 2002
Filed:
Jul. 22, 1999
Applicant:
Inventor:
Jeong-hyuk Choi, Suwon, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/9788 ;
U.S. Cl.
CPC ...
H01L 2/9788 ;
Abstract
Flash type programmable nonvolatile memory unit cells are provided, along with a manufacturing method. Each unit cell is formed such that the interpoly dielectric layer and the control gate surround the top surface and also the four lateral surfaces of the floating gate. This increases the capacitance between the floating gate and the control gate, which improves a coupling ratio. This also improves electromagnetic shielding within each cell, which reduces cross talk between neighboring cells, and permits more dense integration.