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. 06, 2012
Filed:
Jan. 26, 2010
Applicants:
Ralf Richter, Dresden, DE;
Kai Frohberg, Niederau, DE;
Holger Schuehrer, Dresden, DE;
Inventors:
Assignee:
Globalfoundries Inc., Grand Cayman, KY;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 21/768 (2006.01);
U.S. Cl.
CPC ...
Abstract
In sophisticated semiconductor devices, a contact structure may be formed on the basis of a void positioned between closely spaced transistor elements wherein disadvantageous metal migration along the void may be suppressed by sealing the voids after etching a contact opening and prior to filling in the contact metal. Consequently, significant yield losses may be avoided in well-established dual stress liner approaches while, at the same time, superior device performance may be achieved.