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:
Jan. 08, 2013
Filed:
Mar. 05, 2009
Applicants:
Aurelie Humbert, Brussels, BE;
Pierre Goarin, Graz, AT;
Romain Delhougne, Muizen, BE;
Inventors:
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01);
U.S. Cl.
CPC ...
Abstract
A read only memory is manufactured with a plurality of transistors () on a semiconductor substrate (). A low-k dielectric () and interconnects () are provided over the transistors (). To program the read only memory, the low-k dielectric is implanted with ions () in unmasked regions () leaving the dielectric unimplanted in masked regions (). The memory thus formed is difficult to reverse engineer.