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:
Oct. 28, 2008
Filed:
Dec. 21, 2004
Valery M. Dubin, Portland, OR (US);
Tzuen-luh Huang, Portland, OR (US);
Ming Fang, Portland, OR (US);
Kevin J. Lee, Beaverton, OR (US);
Yuehai Liang, Portland, OR (US);
Margherita Chang, Portland, OR (US);
Valery M. Dubin, Portland, OR (US);
Tzuen-Luh Huang, Portland, OR (US);
Ming Fang, Portland, OR (US);
Kevin J. Lee, Beaverton, OR (US);
Yuehai Liang, Portland, OR (US);
Margherita Chang, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
According to one aspect of the invention, a method for forming contact formations is provided. A substrate may be placed in an electrolytic solution. The substrate may have an exposed conductive portion and the electrolytic solution may include a plurality of metallic ions and an accelerator. The accelerator may include at least one of bis-(sodium sulfopropyl)-disulfide and 3-mercapto-1-propanesulfonic acid-sodium salt. A voltage may be applied across the electrolytic solution and the conductive portion of the substrate to cause the metallic ions to be changed into metallic particles and deposited on the conductive portion. The electrolytic solution may also include a protonated organic additive. The electrolytic solution may also include an acid and a surfactant. The acid may include at least one of sulfuric acid, methane sulfonic acid, benzene sulfonic acid, and picryl sulfonic acid. The surfactant may include at least one of polyethylene glycol and polypropylene glycol.