摘要 |
A method of forming a gate of a flash memory cell, by which a coupling effect between floating and control gates can be enhanced by forming a polysilicon spacer in forming the floating gate to increase a surface area of the floating gate. The gate is formed by forming a nitride layer pattern on a substrate to define a prescribed space, forming a polysilicon spacer at a sidewall of the nitride layer pattern within the defined space on the first polysilicon, and removing the nitride layer pattern.
|