Patent ID: 9202834
Filing Date: 2015-12-01
Classification: H01L

Abstract:
1. A method of manufacturing an electronic device, comprising: forming a structure including a member, and a first film arranged on at least a surface of the member, the member including a metal pattern, an insulating film covering the metal pattern, a passivation film arranged on the insulating film, and a trench extending from the passivation film to the insulating film; forming a second film to cover the first film; and patterning the second film by a photolithography process using a photomask, wherein in the forming the second film, an alignment mark including a concave portion corresponding to the trench is formed in a region above the trench in the second film, wherein in the patterning the second film, the photomask is aligned with the structure by using the alignment mark, and wherein the forming the structure includes etching the passivation film and the insulating film such that the trench and an opening to expose the metal pattern are formed.