Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!lgc.com!mips.mitek.com!convex!uunet!cme!durer.cme.nist.gov!przemek From: przemek@rrdstrad.nist.gov (Przemek Klosowski) Newsgroups: sci.electronics Subject: Re: Surface mount advice wanted Message-ID: Date: 31 May 91 18:02:44 GMT References: <3217@krafla.rhi.hi.is> Sender: news@cme.nist.gov Organization: U. Notre Dame/NIST Lines: 20 In-reply-to: adamd@rhi.hi.is's message of 31 May 91 12:44:12 GMT Hello! I used razor blades/scalpels for things like that. I suppose it would also work for PLCC with leads tucked underneath the package. The razors are usually coated with some plastic, so the solder does not stick to them. I would put it across all pins on one side (side view) --------+ H <- soldering iron Flat +-- U // Pack | \ U // <- blade, at smaller angle than I could draw here --------| \---- // and then run the iron across the leads. Each time the blade will slide a little further under the pins. The heat transfer will be small, since per each pin it will average over time. -- przemek klosowski (przemek@ndcvx.cc.nd.edu) Physics Department University of Notre Dame IN 46556