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. 24, 2009
Filed:
Jun. 23, 2005
Applicants:
Emmanuel Collard, Tours, FR;
Patrick Poveda, Villedomer, FR;
Inventors:
Emmanuel Collard, Tours, FR;
Patrick Poveda, Villedomer, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/8234 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vertical diode of low capacitance formed in a front surface of a semiconductor substrate, including a first area protruding from the substrate surface including at least one doped semiconductor layer of a conductivity type opposite to that of the substrate, the upper surface of the semiconductor layer supporting a first welding ball. The diode includes a second area including on the substrate a thick conductive track supporting at least two second welding balls, said first and second welding balls defining a plane parallel to the substrate plane.