Q4: I have a very extensive paper that describe the topic in advanced terms, will send to thee if I can find it... Inge On 10 May 2012 18:26, Douglas Pauls <[log in to unmask]> wrote: > OK, last one, at least for now. > > What is the prevalence of laser drilled holes relative to convential > drilled holes? Is it used a lot or only in certain applications? Is > there a size limitation where laser drilling works better (e.g. Microvia > drilling) than other areas? Thin laminate vs. thick laminate? > > Here is what we say currently: > > · Some drilling is done via the use of lasers. If this is not > tightly controlled, the resin can pyrolize and re-deposit on nearby > surfaces. The resin system will have been degraded by heat and the > redeposited material may interfere with subsequent plating. This is often > a problem with laser drilling of holes. > > Your thoughts? > > Doug Pauls > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________