Method for washing objects
US5782990A · kind A · utility
12Cited by
11References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/902
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A washing method for washing objects includes the steps of supplying a washing liquid to a washing vessel and immersing objects in the washing liquid contained in the washing vessel. The method also includes the steps of discharging the liquid at least once from the washing vessel, and starting to apply the washing liquid to the objects when the objects are partly exposed to air as the liquid is discharged from the washing vessel. The washing liquid application is continued during exposure of the objects to the air to prevent the surface of the objects from being dried and stained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.