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Capacitor Resistance Soldering

IP.com Disclosure Number: IPCOM000048413D
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 85K

Publishing Venue

IBM

Related People

Cuomo, SR: AUTHOR [+2]

Abstract

Two solder heads 10 and 12, each consisting of ten gauged resistance solder tips 14, solder a row of capacitors 16 to board 18 in two overlapping soldering cycles.

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Capacitor Resistance Soldering

Two solder heads 10 and 12, each consisting of ten gauged resistance solder tips 14, solder a row of capacitors 16 to board 18 in two overlapping soldering cycles.

The tips 14 in the solder heads are spaced to make contact with every other capacitor 16 in a row of 20. Soldering is performed simultaneously on both leads of the capacitor 16. Two soldering cycles are required to complete a full row. The first cycle applies to the odd numbered capacitors 1, 3, 5, etc. In the second cycle, the heads are indexed one pitch and soldering is done on the even numbered capacitors. Along with the solder heads, a 20-position magazine 20 is used. Its purpose is to hold and locate the capacitors 16 relative to the solder sites on the board.

The magazine 20 is manually loaded into the tool, and the board 18 is mounted on an X-Y table 22 and manually indexed. The magazine 20 is then lowered so that the capacitors 16 in the magazine are positioned on their respective sites. The soldering heads 10 and 12 are lowered until the tips 14 make contact with the capacitor leads. The tips 14 are electrically energized and reflow soldering is performed. The tips 14 fix the odd numbered capacitors first. Then heads 10 and 12 are raised and indexed one pitch and the heads are lowered onto the even numbered capacitors which are then fixed. Soldering is completed, and the heads 10 and 12 and empty magazine 20 are returned to full up position. This operation is rep...