The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 1997
Filed:
Jun. 03, 1996
Susumu Kato, Isawa-Cho, JP;
Hirofumi Yamaguchi, Sudama-Cho, JP;
Tokyo Electron Limited, Tokyo-to, JP;
Abstract
A cooling table for cooling a processed object of process in a vacuum reserve chamber is provided with support members, which support the object with predetermined gaps between the object and the table, so that the processed object can be cooled without directly touching the cooling table. Accordingly, no chemical reactions attributable to the plane contact between the object of process and the cooling table can be caused, so that the object cannot be contaminated. Even if the object is somewhat warped and subjected to fine vibrations by rapid cooling, moreover, it never rubs against the cooling table, so that no particles can be produced. Further, a preheating device for preheating the unprocessed object is provided overlying the cooling table. Thus, the vacuum reserve chamber can be used for preheating the unprocessed object as well as for cooling the processed object, so that the throughput can be improved.