Electronics Forum | Thu Jun 07 05:11:42 EDT 2012 | cp38260
Hi, I have pcbs (Duroid/RT 5880) with raw copper, soldered in vapour-phase chamber at 230 degrees Celsius. During soldering, copper gets tarnished. Cleaning with Vigon A250 removes the tarnished layer. Indeed, in the VigonA250 techn. datasheet it is
Electronics Forum | Thu Nov 14 14:16:01 EST 2002 | MA/NY DDave
Hi It doesn't have to be the the microwave Rogers Duroid(spelling?) material. Rogers does make other materials. Even though the material you suggested was also one my initial thoughts, I figured it better for him to go to a shop that has current exp
Electronics Forum | Fri Oct 25 13:23:02 EDT 2019 | SMTA-Joe
Hello SMTA, This may be beyond the scope of the SMTA since it does not strictly deal with assembly of electronics, rather, it is about potential solderless methods for manually tuning RF circuits. Our Engineers & QC have tasked manufacturing with
Electronics Forum | Wed Jan 09 12:20:00 EST 2002 | mregalia
Thanks for cluing me into IPC-2221. Though the numbers they give seem to contradict what I have learned from people working with the materials. At least I now know where the guideline for a max of 30 microinches of gold for soldering comes from. But
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