I don't have any experience on this but based on the pictures I think I would attempt to reflow by hand to see what is needed to make it work, that might lead to a clue as what is not right. pat On Tue, Oct 1, 2013 at 4:23 PM, Steve Gregory wrote: > Hi Bob, > > It's supposed to be, but I have my doubts... > > Steve > -----Original Message----- > From: Bob Landman [mailto:[log in to unmask]] Sent: Tuesday, > October 1, 2013 5:22 PM > To: TechNet E-Mail Forum; Steve Gregory > Subject: Re: [TN] HASL question > > Steve, > It looks like nice shiny nickel... > > Is this a lead-free HASL? > > Bob > > Sent from my iPhone > > On Oct 1, 2013, at 7:14 PM, Steve Gregory <[log in to unmask]> wrote: > >> Okay here's another picture. I printed a solder sample and sent it >> through the oven and this is what it looked like: >> >> http://stevezeva.homestead.com/SolderSample.jpg >> >> You can see all the non-wetting going on. The board was profiled and >> it was fine. We are using a FCT Assembly WS889 SN100C solder paste. >> >> What is even more strange is that the first side of the board looked >> okay, but the second side looks like in the photos, like the problem >> is confined to one side of the board if that's possible. >> >> The solder sample was only reflowed once, but I printed the paste on >> the side that was to be built last. Weird huh? >> >> I know you can't tell anything for sure just from some photos, but >> it's the strangest thing I've seen in a while... >> >> Steve >> >> -----Original Message----- >> From: Steve Gregory >> Sent: Tuesday, October 1, 2013 4:46 PM >> To: [log in to unmask]; Steve Gregory >> Subject: RE: [TN] HASL question >> >> Here's one picture: >> >> http://stevezeva.homestead.com/NonWetting.jpg >> >> Look at the left pad and the tarnish that you see there, does that >> look like tarnished nickel? >> >> This is after the board was washed. I have places all over the board >> that looks like this. >> >> I'll post a picture of what it looks like after I printed a solder >> sample with paste and sent it through the reflow over >> >> Steve >> >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory >> Sent: Tuesday, October 1, 2013 4:16 PM >> To: [log in to unmask] >> Subject: Re: [TN] HASL question >> >> Ahhhh....it's what I figured. I think that's what happened. I'll have >> pictures later. >> >> Steve >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer >> Sent: Tuesday, October 1, 2013 4:15 PM >> To: [log in to unmask] >> Subject: Re: [TN] HASL question >> >> No. Not unless somebody screwed up. >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory >> Sent: Tuesday, October 01, 2013 6:11 PM >> To: [log in to unmask] >> Subject: Re: [TN] HASL question >> >> Hi all, >> >> It's funny that the HASL topic has come up today, because we just ran >> a board today that supposedly was lead-free HASL finished, and man it >> looks like crap! >> >> Question; does a PCB get nickel before it gets Lead-free HASL'ed? >> >> Steve >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Vladimir Igoshev. >> PhD >> Sent: Tuesday, October 1, 2013 2:23 PM >> To: [log in to unmask] >> Subject: Re: [TN] HASL question >> >> Hello Victor, >> >> It wouldn't solder in a first palce. >> -- >> Best regards, >> >> Vladimir Igoshev. PhD >> mailto:[log in to unmask] >> >> SENTEC Testing Laboratory Inc. >> 11 Canadian Road, Unit 7. >> Scarborough, ON M1R 5G1 >> Tel: (416) 899-1882 >> Fax: (905) 882-8812 >> www.sentec.ca >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> ______________________________________________________________________ >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> ______________________________________________________________________ >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> ______________________________________________________________________ >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> ______________________________________________________________________ >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud > service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> ______________________________________________________________________ >> > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud > service. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. 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