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:
Apr. 21, 2009
Filed:
May. 05, 2006
Martin W. Weiser, Liberty Lake, WA (US);
Nancy F. Dean, Liberty Lake, WA (US);
Brett M. Clark, Spokane, WA (US);
Michael J. Bossio, Spokane, WA (US);
Ronald H. Fleming, Spokane, WA (US);
James P. Flint, Spokane, WA (US);
Martin W. Weiser, Liberty Lake, WA (US);
Nancy F. Dean, Liberty Lake, WA (US);
Brett M. Clark, Spokane, WA (US);
Michael J. Bossio, Spokane, WA (US);
Ronald H. Fleming, Spokane, WA (US);
James P. Flint, Spokane, WA (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
The invention includes solder materials having low concentrations of alpha particle emitters, and includes methods of purification of materials to reduce a concentration of alpha particle emitters within the materials. The invention includes methods of reducing alpha particle flux in various lead-containing and lead-free materials through purification of the materials. The invention also includes methods of estimating the fractionation of a low concentration of one or more alpha particle emitters during purification of a material.