Method for processing workpiece
US10763106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/334
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In one embodiment in which a technology which is capable of reducing voids that can occur when burying an insulating film into a trench while suppressing process complication, a method MT for processing a wafer W is provided. The wafer W has a groove 62 formed on the main surface 61 of the wafer W. The method MT includes: step S1 of accommodating the wafer W in a processing chamber 4 of a plasma processing apparatus 10; step S2 of starting supplying a first gas into the processing chamber 4; step S3 of starting supplying plasma generation high-frequency power into the processing chamber 4; and step S4 of starting intermittent supplying a second gas into the processing chamber 4 and starting supplying a third gas into the processing chamber 4 together, the first gas is a nitrogen-containing gas, the second gas is a gas that does not contain halogen, and the third gas is a gas that contains halogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.