IoTMemory Technology Assigned Patent
Method of manufacturing NVM device
By Francis Pelletier | April 16, 2025 at 2:00 pmIoTMemory Technology Inc., Taipei, Taiwan, has been assigned a patent (12279422) developed by Fan; Der-Tsyr, Huang; I-Hsin, Taoyuan, Taiwan, Tsai; Chen-Ming, Miaoli County, Taiwan, and Cheng; Yu-Ming, Yilan County, Taiwan, for a “method of manufacturing non-volatile memory device.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method of manufacturing a non-volatile memory includes the following steps. A stacked structure is formed on a substrate and includes a gate dielectric layer, an assist gate, an insulation layer, and a sacrificial layer stacked in order. A tunneling dielectric layer is formed at one side of the stacked structure. A floating gate is formed on the tunneling dielectric layer. The stacked structure is etched until an uppermost edge of the floating gate is higher than a top surface of the insulation layer. A dielectric material layer is formed to cover sidewalls of the floating gate. The dielectric material layer is etched to form an etched dielectric material layer and expose the uppermost edge of the floating gate. An upper gate structure is formed on the etched dielectric material layer, where a portion of the etched dielectric material layer is disposed between the upper gate structure and the substrate.”
The patent application was filed on 2022-01-18 (17/578414).