FLASH MEMORY CELL STRUCTURE

摘要

PURPOSE: A flash memory cell structure is provided to improve the productivity by omitting a triple-well drive-in process conducted at a downstream process for manufacturing a cell using a triple-well. CONSTITUTION: A flash memory cell structure includes a triple-well formed in a substrate. A pick-up well(100) for receiving a triple-well pick-up region(22) is formed enclosing a periphery of a cell active region while being partly overlapped on the triple-well(22). As a triple-well pick-up is formed in the pick-up well(100), a pick-up well region can be formed without performing a triple-well drive-in process.