Method of making a non-volatile memory cell

TD Yiu, F Shone, TL Lin, L Chen - US Patent 5,633,185, 1997 - Google Patents
An improved contactless EPROM array, EPROM cell design, and method for fabricating the
same is based on a unique drain-source-drain configuration, in which a single source …

Single-poly nonvolatile memory cell

YH Li, YH Lai, MS Lo, SC Huang - US Patent 9,640,259, 2017 - Google Patents
PMOS floating gate transistor series connected to the PMOS select transistor. The PMOS
floating gate transistor com prises a floating gate and a gate oxide layer between the floating …

PFET nonvolatile memory

A Pesavento, FJ Bernard, JD Hyde - US Patent 7,221,596, 2007 - Google Patents
(57) ABSTRACT A nonvolatile memory cell is constructed using a? oating gate (FG) pFET
Readout Transistor (RT) having its source tied to a poWer source (Vdd) and its drain …

Method of making non-volatile memory device having a floating gate with enhanced charge retention

SN Ghneim, HJ Fulford Jr - US Patent 5,801,076, 1998 - Google Patents
A non-volatile memory device is fabricated having enhanced charge retention capability.
Enhanced charge retention is achieved upon the floating gate of the non-volatile memory …

Asymmetrical non-volatile memory cell, arrays and methods for fabricating same

DK Liu, M Wong - US Patent 5,612,914, 1997 - Google Patents
BACKGROUND OF THE INVENTION Electrically-programmable, read-only memories
(EPROMs) and electrically-programmable, electrically erasable read-only memories …

Nonvolatile memory cell with multiple floating gates formed after the select gate

Y Ding - US Patent 7,018,895, 2006 - Google Patents
In a memory cell (110) having multiple floating gates (160), the select gate (140) is formed
before the floating gates. In some embodiments, the memory cell also has control gates …

Method of making a non-volatile memory having dielectric filled trenches

AL Esquivel - US Patent 4,698,900, 1987 - Google Patents
57 ABSTRACT A cross point EPROM array has trenches to provide improved isolation
between adjacent buried N--bit lines at locations where the adjacent buried N--bitlines are …

Fabrication of conductive lines interconnecting first conductive gates in nonvolatile memories having second conductive gates provided by conductive gate lines …

Y Ding - US Patent 7,148,104, 2006 - Google Patents
In a nonvolatile memory, the select gates (144S) are formed from one conductive layer (eg
polysilicon or polyside), and the wordlines (144) interconnecting the select gates are made …

Nonvolatile memory cell with high programming efficiency

D Esseni, L Selmi, R Bez, A Modelli - US Patent 6,734,490, 2004 - Google Patents
The memory cell is formed in a body of a P-type semicon ductor material forming a channel
region and housing N-type drain and source regions at tWo opposite sides of the channel …

Non-volatile memory cells with selectively formed floating gate

P Rabkin, HA Wang, KC Chou - US Patent 6,559,008, 2003 - Google Patents
Non-volatile memory transistors are provided that include a floating gate formed from first
and Second layers of material Such as polysilicon. The Second floating gate layer is selec …