Sunrise Memory Assigned Patent

Sunrise Memory Corporation, Los Gatos, CA, has been assigned a patent (9,892,800) developed by Harari, Eli, Saratoga, CA, for a “multi-gate NOR flash thin-film transistor strings arranged in stacked horizontal active strips with vertical control gates.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Multi-gate NOR flash thin-film transistor, (TFT) string arrays, (‘multi-gate NOR string arrays’) are organized as stacks of horizontal active strips running parallel to the surface of a silicon substrate, with the TFTs in each stack being controlled by vertical local word-lines provided along one or both sidewalls of the stack of active strips. Each active strip includes at least a channel layer formed between two shared source or drain layers. Data storage in the TFTs of an active strip is provided by charge-storage elements provided between the active strip and the control gates provided by the adjacent local word-lines. Each active strip may provide TFTs that belong to one or two NOR strings, depending on whether one or both sides of the active strip are used.”

The patent application was filed on July 26, 2016 (15/220,375).