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Tinker
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Posted: 29 May 2019 at 7:38pm | IP Logged Copy link to clipboard   Quote Tinker

When I order my PCB's from China there are two expressions I'm not sure what they mean.

Could somebody tell me what "HASL" stands for?

Also, what does "tented", as in 'tented' vias, mean?

Thank you.

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plover
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Posted: 29 May 2019 at 10:13pm | IP Logged Copy link to clipboard   Quote plover

HASL

HASL or hot air solder leveling is a type of finish used on printed circuit boards (PCBs). The PCB is typically dipped into a bath of molten solder so that all ...

quoted from wiki, just google HASL
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwil8cWw2sDiAhX87nMBHfvHBocQFjAA egQIAhAB&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHot_air_solder_leveling&usg=AOvVaw10i3gdZu8MChlr1PtiV24G

google "via tenting"

Quoting:
Via Tenting for PCB Design. Tenting a via refers to covering via with soldermask to enclose or skin over the opening

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Tinker
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Posted: 29 May 2019 at 10:39pm | IP Logged Copy link to clipboard   Quote Tinker

Thanks, did not think that google would know that

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