Semiconductor memory array of floating gate memory cells...

Details Semiconductor memory array of floating gate memory cells... Semiconductor memory array of floating gate memory cells...

2007-12-04

2010-10-19

Huynh, Andy (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S314000, C257SE27103, C257SE29300, C257SE29308, C365S185140, C365S185180, C365S185290

Reexamination Certificate

active

07816723

ABSTRACT:
A memory device, and method of making and operating the same, including a substrate of semiconductor material of a first conductivity type, first and second spaced apart regions in the substrate of a second conductivity type with a channel region therebetween, an electrically conductive floating gate having a first portion disposed over and insulated from the channel region and a second portion disposed over and insulated from the first region and including a sharpened edge, an electrically conductive P/E gate having a first portion disposed over and insulated from the first region and a second portion extending up and over the floating gate second portion and insulated therefrom by a first layer of insulation material, and an electrically conductive select gate having a first portion disposed laterally adjacent to the floating gate and disposed over and insulated from the channel region.

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