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:
Jul. 10, 1990
Filed:
Jul. 22, 1988
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An exhaust processing apparatus comprises a cracking furnace for cracking and solidifying exhaust discharged from a reactor for forming crystals on a semiconductor substrate, a first collecting device for collecting relatively large components solidified in the cracking furnace, a second collecting device for collecting relatively small solidified components passed through the first collecting device, and a chemical or a physical adsorbing member for chemically or physically adsorbing the exhaust passed through the first and second collecting devices. The apparatus may be provided with bypass piping for bypassing a particular section of the apparatus, a shutoff member for opening and closing the bypass piping and a control device for controlling the shutoff member. The cracking furnace of the apparatus has a heating portion for heating the exhaust, an enlarged portion disposed downstream the heating portion and having a passage whose cross-sectional area is larger than that of the heating portion, and a cooling mechanism for forcibly cooling the heated exhaust.