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. 27, 2009
Filed:
Aug. 09, 2007
Ronald E Paulsen, Woodinville, WA (US);
Ronald L. Koepp, Seattle, WA (US);
Yanjun MA, Bellevue, WA (US);
Larry Morrell, Kirkland, WA (US);
Andrew E. Horch, Seattle, WA (US);
Ronald E Paulsen, Woodinville, WA (US);
Ronald L. Koepp, Seattle, WA (US);
Yanjun Ma, Bellevue, WA (US);
Larry Morrell, Kirkland, WA (US);
Andrew E. Horch, Seattle, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
Methods are provided, and devices made by such methods. One of the methods includes procuring a semiconductor wafer, processing the wafer to form a plurality of circuits on a top side, forming trenches on the top side between the adjacent circuits, forming a trench passivation layer on side walls of the trenches, forming conductive bumps on the top side of the wafer; and removing material from the bottom side to thin the wafer, and eventually separate the wafer along the trenches into dies, where each die includes only one of the circuits.