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:
May. 24, 2016
Filed:
Jan. 31, 2014
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Ying-Hsueh Chang Chien, Hsinchu, TW;
Chi-Ming Yang, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
Disclosed are a method and a system for processing wafers in fabricating a semiconductor device where disposing chemicals and wafer heating are needed for chemical reaction. A wafer is placed above a wafer heater such that a second surface faces the wafer heater, and heated from the second surface. A chemical layer is formed on an opposing first surface. The wafer heater is sized and configured to be capable of heating the entire second surface, and adapted to produce a locally differential temperature profile if needed. During heating, an actual temperature profile on the wafer may be monitored and transmitted to a computing system, which may generate a target temperature profile and control the wafer heater to adjust local temperatures on the wafer according to the target temperature profile. A supplemental heater for heating the chemicals may be used for finer control of the wafer temperature.