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:
Nov. 20, 1990
Filed:
Aug. 30, 1988
Arthur H Moore, Fillmore, CA (US);
Semiconductor Equipment Corporation, Moorpark, CA (US);
Abstract
Apparatus for rapidly and precisely removing and replacing surface mount devices without disturbance to nearby devices on a printed circuitboard, the invention utilizes a multiple nozzle arrangement wherein nozzles arranged for reciprocating motion one each along each edge of a surface mount device direct low velocity hot gas against bond joint locations along the respective edges of the surface mount device, thereby to melt the bonding agent mounting the device to the circuitboard. The multiple nozzle arrangement of the present system thus allows removal and/or replacement of devices of widely varying dimensions without the need for changes in nozzle size such as is inherent in prior art hot gas rework stations.