Patent ID: 11907685
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. The method of claim 14, wherein the forming of the randomly patterned dopant implant region further comprises:
before the randomly depositing of the particles of the masking material, forming a first dielectric layer on the surface of the semiconductor layer;
forming a second dielectric layer on the first dielectric layer, wherein the second dielectric layer is different from the first dielectric layer;
forming an opening that extends through the second dielectric layer to the first dielectric layer, wherein the opening defines an array region in the semiconductor layer for the array of devices; and
performing any of the following in order to randomly deposit the particles of the masking material onto the first dielectric layer within the opening:
performing an epitaxial semiconductor deposition process, wherein the epitaxial semiconductor deposition process is selective to the second dielectric layer and only partially selective to the first dielectric layer such that the masking material is only deposited as the particles on the first dielectric layer within the opening;
exposing the opening to an aqueous colloidal suspension;
performing a sputter deposition process; and
performing an aerosol spray deposition process.