Hi,
http://www.lpkfusa.com/RapidPCB/ThroughHolePlating/proconduct.htmI think none of you are aware of this product.
I have a board which is through hole plated using
this product. There is no fault in any via.
After melted once in oven only at 160C, it will no
more
melt any further during soldering. It becomes like
ceramic.
According to a person in Turkey which uses this
product (the same person who sent me the board) says;
"You can through hole plate 0.4 mm holes with an
ordinary FR4 with 1.6 mm thickness. You can
through hole plate 0.2 mm holes if you use 0.8 mm
thickness board. Because aspect ratio is 1/4"
It worth to give a try. I will inform you later,
Dr.
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