Electronics Forum | Fri Sep 21 14:45:36 EDT 2001 | jschake
I asked several people their opinion of HASL 0201 pads and there was no positive feedback whatsoever. The most common concern was the domed/convex shape of the pad finish that would result in aperture gasketing problems, which you may already have e
Electronics Forum | Tue Dec 21 12:28:27 EST 2010 | wrongway
I know when we used them we had problems when one pad is 7 mils tall nest to a flat pad one lead touches the pad the lead next to it isnt touching anything so then have an open I don't see how anybody dosnt have problems with it that use quad flatpa
Electronics Forum | Tue Jan 04 10:37:48 EST 2011 | johanhuizing
Hi Mike, We only are using ENIG not hard gold, we are using edge contacts but the connectors will only be removed if the product is being replaced, normal life time for the equipment where the electronics is build-in is 15 years. Also the electronic
Electronics Forum | Fri Aug 25 05:23:46 EDT 2000 | Wolfgang Busko
Hi Murad, like with many other questions it�s hard to judge without seeing the effect. Assuming that this site you�re talking about is well equiped with knowledge and that they handle their processes normally to everybody�s satisfaction it�s obvious
Electronics Forum | Thu Jan 06 17:33:07 EST 2011 | boardhouse
Hi Johan, Sounds like you have already gone over your product very well to reduce product cost. Switching away from Deep gold Tabs & carbon ink Key pads can save quite a bit. The only other thing to suggest would be material - Moving away from Isol
Electronics Forum | Wed Dec 22 01:39:06 EST 2010 | boardhouse
Hi Johan, As a Asian board supplier - I would not recommend using Lead free hasl on any product that has BGA, you would be just looking for issues, flatness being the main. I agree with one of the other replies - Your purchasing dept. should not be
Electronics Forum | Thu Feb 22 16:40:23 EST 2007 | mika
One of our customers that always was going for Ni/Au surface finish on RoHS PCB and our processs was adjusted for that, "whithout any problem". Recently they decided to switch to another surface finsh: PbFree HASL. What is that? Imersion tin/silver?
Electronics Forum | Thu Mar 13 14:12:31 EDT 2014 | davef
You're creating a new alloy on the surface of your board. The alloy will have a melting point determined by the constituent metals of the alloy. Your alloy consists of: * Lead-free HASL solderability protection on the board * Lead-free solder paste *
Electronics Forum | Wed Nov 28 02:43:00 EST 2007 | philip_yam
Hi all, For leadfree HASL finish, is there any specification or guidelines for contamination level, esp Cu% to refer? How can we ensure the HASL finish composition is reliable for assembly? Thanks..
Electronics Forum | Thu Nov 22 07:21:36 EST 2018 | mermarinc
Hey!Thanks for sharing.
