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MOTM

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Message

PB unsoldering

2003-04-27 by Paul Schreiber

> good way to unsolder MOTM PCB's??  They seem to delaminate very
> easily.

Actually, no they don't. The LPI solder mask used makes it *extremely difficult* to delaminate
unless you:

a) are using an iron not regulated to 700F

b) are not removing all the solder and/or you are not first detaching the lead from the *inside
edge* of the plated-thru hole. In many cases, a lead 'sticks' to the inside plating. You have to
gently wiggle it side-to-side after 'solder-sucking' before pulling.

The resistor/cap holes used on the boards is *oversized* as compared to 'commercial' boards. This
was done *on purpose* to make it easier to desolder.

In 5 years, I've personally never delaminated any MOTM pc board.

Paul S.

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