发明授权
US07920424B2 Scalable electrically eraseable and programmable memory (EEPROM) cell array 有权
可扩展的电可擦除和可编程存储器(EEPROM)单元阵列

Scalable electrically eraseable and programmable memory (EEPROM) cell array
摘要:
A non-volatile memory (NVM) system includes a plurality of NVM cells fabricated in a dual-well structure. Each NVM cell includes an access transistor and an NVM transistor, wherein the access transistor has a drain region that is continuous with a source region of the NVM transistor. The drain regions of each NVM transistor in a column of the array are commonly connected to a corresponding bit line. The control gates of each NVM transistor in a row of the array are commonly connected to a corresponding word line. The source regions of each of the access transistors in the array are commonly coupled. The NVM cells are programmed and erased without having to apply the high programming voltage VPP across the gate dielectric layers of the access transistors. As a result, the NVM cells can be scaled down to sub-0.35 micron geometries.
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