Method for removing particles from a semiconductor wafer
US6248180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of removing particles adhering to a surface of a semiconductor wafer including the steps of: providing a container having a drain valve; positioning the semiconductor wafer in the container; directing a jet stream consisting of water against the surface of the semiconductor wafer; removing particles adhering to the surface of the semiconductor wafer by scrubbing the surface of the semiconductor wafer with a brush while the jet stream of water is directed against the surface of the semiconductor wafer; closing the drain valve while the jet stream of water is directed against the semiconductor wafer, wherein the water accumulates in the container to thereby completely immerse the brush and the semiconductor wafer in the water in the container; and maintaining the brush and the semiconductor wafer completely immersed in the water from the jet stream for a predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.