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. 28, 2006
Filed:
Oct. 28, 2002
Alexandre Ellison, Linköping, SE;
Nguyen Tien Son, Linköping, SE;
Björn Magnusson, Linköping, SE;
Erik Janzén, Borensberg, SE;
Alexandre Ellison, Linköping, SE;
Nguyen Tien Son, Linköping, SE;
Björn Magnusson, Linköping, SE;
Erik Janzén, Borensberg, SE;
Norstel AB, Linköping, SE;
Abstract
The purpose of the invention is to provide a high resistivity silicon carbide substrate with electrical properties and structural quality suitable for subsequent device manufacturing, such as for example high frequency devices, so that the devices can exhibit stable and linear characteristics and to provide a high resistivity silicon carbide substrate having a low density of structural defects and a substantially controlled uniform radial distribution of its resistivity.