Other

Sandisk Technologies Inc.

Sandisk 3d LLC

Wei-Te Wu

Yung-Tin Chen

Ming-Che Wu

Ajay Kumar

Chan-syun David Yang

Yeajer Arthur Chen

Changhun Lee

Katsuhisa Kugimiya

Methods for forming a dual gate structure for a vertical TFT are described. The dual gate structure may be formed by performing a first etching process that includes forming a first set of trenches by etching a first set of oxide pillars to a first depth and forming a second set of trenches by etching a second set of oxide pillars to a second depth higher than the first depth, forming a first set of gate structures within the first set of trenches, forming a second set of gate structures within the second set of trenches, performing a second etching process that includes forming a third set of trenches by etching the first set of gate structures from a second initial depth to a third depth and forming a fourth set of trenches by etching the second set of gate structures to a fourth depth higher than the third depth.

Dual gate structure

A three-dimensional nonvolatile memory array includes a select layer that selectively connects vertical bit lines to horizontal bit lines. Individual select switches of the select layer include two separately controllable transistors that are connected in series between a horizontal bit line and a vertical bit line. Each transistor in a select switch is connected to a different control circuit by a different select line.

High capacity select switches for three-dimensional structures

A method of fabricating an interconnect line comprises forming a wall, depositing an etch mask having a thickness that decreases towards a bottom of the wall, and isotropically etching the wall at the bottom to form the interconnect line having a pre-determined gap between the substrate and a bottom of the line.

Method for fabricating an interconnect line

Growing community of inventors

Cupertino, CA, United States of America

Wei-Te Wu