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:
Sep. 22, 2009
Filed:
Jul. 08, 2008
Terry L. Sterrett, Cave Creek, AZ (US);
Devendra Natekar, Chandler, AZ (US);
Terry L. Sterrett, Cave Creek, AZ (US);
Devendra Natekar, Chandler, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
In one embodiment, a package-to-package stack is assembled comprising a first integrated circuit package, and a second integrated circuit package which are mechanically and electrically connected using an interposer. In one embodiment, the interposerincludes columnar interconnects which may be fabricated by etching a conductive member such as copper foil, for example. In one application, the pitch or center to center spacing of the columnar interconnects may be defined by masking techniques to provide an interconnect pitch suitable for a particular application. In yet another aspect, etching rates may be controlled to provide height to width aspect ratios of the columnar interconnects which are suitable for various applications.