Cleaning and drying apparatus for objects to be processed
US6164297A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jun 12, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/902
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A cleaning and drying apparatus includes a cleaning bath 22 for collecting cleaning liquid for wafers, a drying chamber 23 arranged above the cleaning bath 22 to dry the wafers, a shutter 36 positioned between the cleaning bath 22 and the drying chamber 23 to define them communicably, a opening and closing mechanism 54 arranged outside a processing container to open and close the shutter 36, a connecting member 58 extending through an opening formed in an outer wall of the container to connect the shutter 36 with the mechanism 54, and a liquid sealing mechanism 60 for sealing the opening with sealing liquid. Another cleaning and drying apparatus is also provided with a wafer boat 24 for arranging the wafers at intervals horizontally and carrying the wafers, the drying chamber 23 which accommodate the wafers together with the wafer boat 24 for drying the wafers, dry-gas nozzles 37 for supplying dry gas to the wafers and a moving unit for moving the wafers in relation to the nozzles 37.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.