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Solder Spreader Apparatus and Method

IP.com Disclosure Number: IPCOM000077899D
Original Publication Date: 1972-Oct-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Sarnacki, FH: AUTHOR [+2]

Abstract

This is an apparatus and method for providing a controlled solder application and distribution to a printed-circuit board that is immersed in a heated fluxing fluid. The solder spreader apparatus comprises a handle 10, a solder supply reservoir 11, a control lever 12, a squeegee 13, a squeegee stiffener 14, and a slide member 15.

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Solder Spreader Apparatus and Method

This is an apparatus and method for providing a controlled solder application and distribution to a printed-circuit board that is immersed in a heated fluxing fluid. The solder spreader apparatus comprises a handle 10, a solder supply reservoir 11, a control lever 12, a squeegee 13, a squeegee stiffener 14, and a slide member 15.

For operation, solder 20 is placed into the solder supply reservoir 11 and the lower portion of the solder spreader apparatus is immersed into the heated fluid 16 within tank 17, wherein the solder will become molten. Control lever 12 which actuates slide member 15 can be adjusted so as to obtain the desired molten solder flow rate through orifice 18. A printed-circuit board 19 that is to be soldered is placed at the bottom of the tank 17. Solder 20 is permitted to flow from the solder reservoir 11 to the surface of the printed-circuit board 19. By movement of the solder spreader apparatus (as indicated), the squeegee 13 is used to distribute the solder 20 as desired.

Preferably, the handle 10 and squeegee stiffener 14 are constructed of stainless steel to reduce or eliminate solder contamination. The remainder of the applicator is made of VESPEL* material, primarily because of the low expansion and excellent insulating characteristics. The solder spreader apparatus can be utilized to accommodate large or small areas in both fabricating or rework applications. * Trademark of E. I. du Pont de Nemours &...