Removable amorphous carbon CMP stop

Details Removable amorphous carbon CMP stop Removable amorphous carbon CMP stop

2005-02-08

2005-02-08

Ghyka, Alexander (Department: 2812)

Semiconductor device manufacturing: process

Coating of substrate containing semiconductor region or of...

Insulative material deposited upon semiconductive substrate

C438S789000, C438S790000, C438S710000, C438S725000, C427S534000, C427S536000

Reexamination Certificate

active

06852647

ABSTRACT:
A method is provided for processing a substrate including removing amorphous carbon material disposed on a low k dielectric material with minimal or reduced defect formation and minimal dielectric constant change of the low k dielectric material. In one aspect, the invention provides a method for processing a substrate including depositing at least one dielectric layer on a substrate surface, wherein the dielectric layer comprises silicon, oxygen, and carbon and has a dielectric constant of about 3 or less, forming amorphous carbon material on the at least one dielectric layer, and removing the one or more amorphous carbon layers by exposing the one or more amorphous carbon layers to a plasma of a hydrogen-containing gas.

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