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.

Date of Patent:
Mar. 04, 1986

Filed:

Dec. 20, 1984
Applicant:
Inventors:

Brian S Miller, Stafford, VA (US);

Aubrey J Dunn, Springfield, VA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
228102 ; 2281802 ; 228-9 ; 228 12 ; 228 447 ; 228 494 ;
Abstract

In order to ensure total bonding together of two-dimensional arrays of inm bumps on circuit boards, additional bumps are placed on each board in a triangular pattern which contains the array of that board. Opposing sets of thrusters are used to move the boards and their bumps toward each other, after the arrays are aligned with the boards juxtaposed and substantially parallel to each other. As corresponding sets of additional bumps touch each other, the set of thrusters moving the boards at those points hold their positions, until all sets of additional bumps are in touch; all of the thrusters of at least one board are then simultaneously energized until a predetermined pressure is achieved between the boards.


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