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Subject: Re: who's applying photoresist film ?

From: "jcarlosmor" <jcarlosmor@...>
Date: 2008-12-17

I am using a medium size office laminator without any problems. The
film adheres so well, so I beleive that the correct temperature is the
key for success. I had noticed also that bubbles or wrinkles are mainly
due to operator human error by manipulating the film, just before
entering the hot rolls, not the process itself inside the laminator.
However, large PCBs in the horizontal axis are more prone to wrinkles
because it is harder to keep the film flat with the hands at those
sizes. It would be very useful to adapt some kind of roll support or
clamp to a structure containing the laminator itself, to emulate a more
professional laminator with a flat film entering the hot rolls. Your
wet method seems very well, but there are more steps to follow than in
the dry method.