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. 23, 2003
Filed:
Sep. 28, 2000
Winston K. Chan, Princeton, NJ (US);
Chris Coretsopoulos, Iowa City, IA (US);
Matthew A. Howard, III, Iowa City, IA (US);
University of Iowa Research Foundation, Iowa City, IA (US);
Abstract
An electrode array includes a flexible substrate, and a plurality of electrodes disposed on the flexible substrate. The flexible substrate is preferably formed of polyimide. The contacts preferably have a diameter in the range of approximately 10 &mgr;m to 1 mm. The an electrode array is manufactured by forming a plurality of electrodes on a flexible substrate by forming a metal line on the flexible substrate for each of the plurality of electrodes by depositing one or more metals using electron beam evaporation and then patterning the one or more metals and forming a contact on the flexible substrate for each of the plurality of electrodes using one of electroplating and embossing, and then forming an insulating film on the flexible substrate except over the contacts and areas of the electrodes utilized for connections to an electrical device. Electroplating is utilized to form contacts less than approximately 100 &mgr;m in diameter, and embossing is utilized to form contacts greater than approximately 100 &mgr;m in diameter.