Patent ID: 11901179
Assignee: ASM IP HOLDING B.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A method for forming a layer on a substrate, the method comprising:
providing a substrate in a reactor of a semiconductor processing system, the reactor having a divider and a substrate holder therein, the divider separating an upper chamber from a lower chamber, wherein the substrate has an upper surface and an opposite lower surface;
positioning the substrate within the upper chamber of the reactor using the substrate holder;
flowing a silicon-containing gas from a silicon-containing gas source out a first inlet disposed in the upper chamber of the reactor, and through the upper chamber of the reactor to deposit a layer of the upper surface of the substrate; and
flowing a halogen-containing gas from a halogen-containing gas source out a second inlet disposed in the lower chamber of the reactor, and through the lower chamber of the reactor to etch a deposited film on at least one wall bounding the lower chamber of the reactor while flowing the silicon-containing gas through the upper chamber of the reactor.