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:
Sep. 10, 1996
Filed:
Jun. 02, 1995
Rintarou Okamoto, Kitakyushu, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In a semiconductor device manufacturing apparatus having a holder for holding a semiconductor wafer to be processed within a reaction vessel, the holder is provided with a separator for preventing ends of the semiconductor wafer from being brought into contact with the holder. Further, in a semiconductor device manufacturing apparatus having a holder functioning as a cathode, for holding a semiconductor wafer to be processed; an anode provided on the semiconductor wafer side so as to be opposed to the holder; a plurality of magnets arranged in the vicinity of the anode, for generating magnetic force lines on a surface of the anode; and a section for applying a high voltage between the anode and the cathode to generate an electric field so that plasma can be generated at intersectional portions between the generated magnetic force lines and the generated electric field, the apparatus further includes a separator provided for the holder, for preventing ends of the semiconductor wafer to be processed from being brought into contact with the holder. The separator provided for the holder is a stepped portion or a recessed portion formed on the holder.