Patent ID: 6451707
Filing Date: 2002-09-17
Classification: H01L

Abstract:
A method for fabricating an electronic device comprising:a first process of forming an insulator film onto a conductive pattern formed on a substrate; a second process of forming an opening portion in said insulator film by dry etching said insulator film using a resist pattern as a mask hereby forming a patterned insulator film, thereafter removing said resist pattern; a third process of removing a reaction product deposited on a wall or a bottom surface of said opening portion due to a plasma ashing of said resist pattern; and a fourth process of rinsing an inside of said opening portion rid of said reaction product with water; wherein the third process includes a process of removing a part of said reaction product by using a first cleaning solution to etch said atterned insulator film, thereafter removing the remaining part of said reaction product by using a second cleaning solution to etch said atterned insulator film, the first cleaning slution having lower power than the second cleaning solution.