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:
Mar. 16, 2010
Filed:
Jan. 19, 2007
Sungchul Kang, Seoul, KR;
Munsang Kim, Seoul, KR;
Euisik Yoon, Plymouth, MN (US);
Hyung-kyu Lee, Minneapolis, MN (US);
Sun-il Chang, Saint Paul, MN (US);
Junho Choi, Seoul, KR;
Sungchul Kang, Seoul, KR;
Munsang Kim, Seoul, KR;
Euisik Yoon, Plymouth, MN (US);
Hyung-Kyu Lee, Minneapolis, MN (US);
Sun-Il Chang, Saint Paul, MN (US);
Junho Choi, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
The Regents of the University of Minnesota, Saint Paul, MN (US);
Abstract
A capacitive sensor includes an upper electrode layer having a plurality of electrodes disposed in line with each other, a lower electrode layer having a plurality of electrodes disposed in line with each other, an insulating layer disposed between the upper electrode layer and the lower electrode layer, and a layer of bumps made of insulating material formed above the area where the electrodes of the upper electrode layer and the electrodes of the lower electrode later are crossed. The sensor detects the proximity of approaching objects by the capacitance change between the electrodes disposed in the upper electrode layer, and detects the contact of any objects by the capacitance change between the electrodes of the upper electrode layer and the electrodes of the lower electrode layer.