Patent ID: 11961741
Assignee: ASM IP HOLDING B.V.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The method according to claim 1, wherein the first portion of the surface of the dielectric layer is constituted by a first dielectric layer deposited on the substrate and the second portion of the surface of the dielectric layer is constituted by a second dielectric layer deposited on and in contact with the first dielectric layer, wherein the second dielectric layer has a turned resistance to fluorine and/or chlorine radicals in a manner that an etch selectivity of the second dielectric layer over the first dielectric layer is 5 or higher, wherein the etch selectivity is defined as a ratio of etch rate of the second dielectric layer to etch rate of the first dielectric layer under the first dry-etching conditions.