Patent ID: 9570635
Date: 2017-02-14
CPC Classifications: H01L,Y02E

Claim:
1. A patterning method for a plated electrode of a semiconductor device, said semiconductor device comprising a semiconductor substrate, and comprising steps of: disposing a protection layer on said semiconductor substrate; disposing an anti-reflection coating or a dielectric layer on said protection layer, wherein a melting point temperature of said anti-reflection coating is higher than said melting point temperature of said protection layer; using a laser to heat and liquefy a portion of said protection layer below said anti-reflection coating or said dielectric layer, thus separating and removing said anti-reflection coating on said liquefied protection layer, and forming at least an opening and exposing said protection layer, wherein a temperature of said protection layer in said laser heating and liquefying step is higher than said melting point temperature of said protection layer and lower than said melting point temperature of said anti-reflection coating; and plating and forming an electrode in said opening.