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:
Mar. 09, 1993
Filed:
Nov. 20, 1991
Lloyd D Ingle, Lompoc, CA (US);
John D Koontz, Santa Barbara, CA (US);
Santa Barbara Research Center, Goleta, CA (US);
Abstract
A first piece (22) is bonded to a second piece (24) at a selected location (45) by positioning the first piece (22) and second piece (24) between a pair of bonding tools (36 and 38), with the bonding tools at the selected location (45) of the first piece (22) and the second piece (24) where bonding is to be achieved. The selected location (45) of the first piece (22) and the second piece (24) is pressed between the pair of bonding tools (36 and 38) with an applied force (46), the applied force (46) increasing from zero to a prebonding force (64), being maintained at the prebonding force (64) for a prebonding period (66), changing to a bonding force (60), and thereafter decreasing from the bonding force (60) to zero. Ultrasonic energy (48) is applied to the selected location (45) through at least one of the bonding tools (36 and 38), the ultrasonc energy (48) increasing to a prebonding energy (68) during the period that the applied force (46) is being increased from zero to the bonding force (60), being maintained at the prebonding energy (68) during at least a portion of the prebonding force period (66), changing to a bonding energy (72) prior to the time that the applied force (46) reaches the bonding force (60), and thereafter decreasing to zero.