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:
Jan. 02, 2001
Filed:
Jun. 23, 1998
Seishi Murakami, Yamanashi-ken, JP;
Tatsuo Hatano, Yamanashi-ken, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
The present invention provides an apparatus and method for forming a film by loading an object to be processed into a process chamber, moving up supporting pins to receive the susceptor, heating the object to be processed with heat radiation for a predetermined time by means of a heater housed in the susceptor while the supporting pins is being moved up, mounting the object to be processed on the susceptor, introducing arbitrarily chosen gases to adjust an inner pressure and temperature in accordance with the film formation conditions, and introducing a raw material gas into the process chamber, thereby starting film formation. After completion of the film-formation, only the supply of the raw material gas is stopped, whereas supply of other gases is gradually stopped. When the object to be processed is unloaded from the process chamber after completion of the film formation process, first, supporting pins are moved up to move the object to be processed away from the heater housed in the susceptor. The object to be processed is cooled in this manner. By virtue of a series of operations, a rapid change temperature and, a rapid change in pressure applied to the object to be processed is avoided, resulting in preventing a rapid temperature change.