Browse Prior Art Database

Solder Wave Diagnostic Tool

IP.com Disclosure Number: IPCOM000045607D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Hall, DJ: AUTHOR [+2]

Abstract

The outline of a a flux-covered solder wave on a circuit board can be determined by using a simulated circuit board having pairs of spaced contacts which can be electrically joined for continuity by the concurrent touching of a pad pair with the conductive solder wave.

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Solder Wave Diagnostic Tool

The outline of a a flux-covered solder wave on a circuit board can be determined by using a simulated circuit board having pairs of spaced contacts which can be electrically joined for continuity by the concurrent touching of a pad pair with the conductive solder wave.

Referring to the figure, a circuit panel 1 is constructed with pairs 2 of contact pads spaced from each other and between which a solder wave can produce electrical continuity. One pad 2a in each pair is energized by means of the circuit line 3, while the other pad 2b is connected via a through hole 4 to the opposite side of the board for connection to a continuity checker (not shown). As the panel is passed through the solder wave at various levels, the conductivity of the solder will complete the circuit between the pads in a plurality of pairs to indicate where it touches the circuit panel at the instant of measurement. This tool provides a means of obtaining the outline of wave contact with a circuit board during a soldering operation.

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