Patent ID: 11915926
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A method to synthesize a porous thin film, the method comprising:
performing an oxidation process to remove carbon impurities from a framework such that pores are formed in the framework, each of the pores extending from an upper surface of the framework to a bottom surface contained in the framework; and
doping the framework by performing a high aspect ratio (HAR) atomic layer deposition (ALD) process to deposit a pore-coating film that coats sidewalls and a bottom surface of the pores,
wherein the HAR ALD process uses an oxidizer and is performed at a low temperature ranging from about 50 degrees Celsius (50° C.) to about 250° C. so as to form organic impurities comprising a carbon material, and
wherein a thickness of the pore-coating film defines an inner thickness of the pores.