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, 2005
Filed:
Jan. 23, 2003
Stephen S. K. Hsiung, Taoyuan, TW;
Jung-chuan Chou, Yunlin, TW;
Tai-ping Sun, Taoyuan, TW;
Wen-yaw Chung, Taoyuan, TW;
Yuan-lung Chin, Taipei, TW;
Chung-we Pan, Pingtung, TW;
Stephen S. K. Hsiung, Taoyuan, TW;
Jung-Chuan Chou, Yunlin, TW;
Tai-Ping Sun, Taoyuan, TW;
Wen-Yaw Chung, Taoyuan, TW;
Yuan-Lung Chin, Taipei, TW;
Chung-We Pan, Pingtung, TW;
Chung Yuan Christian University, Chung-Li, TW;
Abstract
A method for fabricating a monolithic chip including multi-sensors that can detect pH, temperature, photo-intensity simultaneously and a readout circuit. As such, as well as the multi-sensors, the readout circuit also has a reduced chip area at low cost since selection switches are used to sequentially read pH, temperature and photo-intensity detecting values, wherein the readout action is completed within a clock cycle. The entire structure is fabricated with standard 0.5 μm CMOS IC, Double Poly Double Metal (DPDM), n-well technology and allows the integration of the on-chip signal conditioning circuitry. The chip fabricated by the method can not only sense the Ph, temperature, photo values but also apply the extended gate field effect transistor (EGFET) on the temperature and light compensation to produce realistic pH values.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile