The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2022
Filed:
Aug. 26, 2021
China Flash Co., Ltd., Shanghai, CN;
Hong Nie, Shanghai, CN;
Jingwei Chen, Shanghai, CN;
CHINA FLASH CO., LTD., Shanghai, CN;
Abstract
The present disclosure relates to a method for programming flash memory, which includes: providing a flash memory structure having a floating gate, and floating a source of the flash memory structure; separately applying voltages to a drain and a substrate, to form an electric field, and generating electron-hole pairs, to generate primary electrons, where the voltage applied to the substrate is less than the voltage applied to the drain; accelerating holes downward under the action of the electric field to collide with the substrate in the flash memory structure within a preset time, to generate secondary electrons; and separately applying voltages to a gate and the substrate, where the voltage applied to the substrate is less than the voltage applied to the gate, and enabling the secondary electrons to generate tertiary electrons to inject the tertiary electrons into the floating gate, to complete a programming operation.