Processing apparatus and a processing method
US6456480B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/67017
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The processing apparatus prevents difficulty in separation of the substrate from the base because of charges on the substrate when the substrate is lifted from the base for substrate placing during processing. The processing apparatus comprises pins to lift up the substrate on the base and a neutralization apparatus to discharge ionized gas to the gap between the bottom of the substrate lifted from the base by the pins and the top of the base. When ionized gas is discharged to the substrate and the base, the charges are neutralized. In addition, the processing apparatus comprises three or more of proximity pins, which form gap between the bottom of the substrate on the base and the top of the base to prevent a frictional electricity being formed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.