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. 19, 1999
Filed:
Apr. 08, 1998
Michael J Anderson, Phoenix, AZ (US);
Gregory Kennison, Mesa, AZ (US);
Jeffrey E Christensen, Scottsdale, AZ (US);
Gary C Johnson, Tempe, AZ (US);
Jon G Aday, Gilbert, AZ (US);
CTS Corporation, Elkhart, IN (US);
Abstract
A method for packaging an acoustic wave device (10) without contaminating an active area (12) disposed on a face (14) thereof, including steps of: providing a substrate with a top (30) having conductive pads (18), bonding stud bumps (20) to a periphery (22) of the face (14) of the acoustic wave device, disposing a dam (26) onto the top (30) of the substrate and inside of the location of the conductive pads (18), aligning and connecting the stud bumps (20) to the conductive pads (18) on the top of the substrate to form electrically conductive interconnections between the acoustic wave device (10) and the substrate (16), flowing an underfill material (28) at the periphery (22) of the acoustic wave device and around the interconnections such that the underfill material (28) stops at a boundary (32) defined by the dam (26), and curing the underfill material (28) to mechanically reinforce and protectively encapsulate the interconnections.