Electronics Forum | Wed Jul 04 10:40:51 EDT 2001 | nifhail
I have thousands of old datecode PCBs which has an Entek and HASL finished. Entek PCBs are about 6 � 1.5 years old and HASL boards are at 1 - 2 years old. To make it worse, some of them came in the loose form, no vacuum seal� nothin�. As for the HA
Electronics Forum | Wed Jul 29 22:50:17 EDT 1998 | Dave F
| We are investigating alternatives to HASL finishes for more dense PWBs. OSP is not a good choice because of low solid flux and possibly long shelf life. Immersion gold is expensive and so far has been more difficult to wave solder. Has anyone ha
Electronics Forum | Wed Apr 16 19:23:52 EDT 2008 | molos21
I think you are close to the problem when you expect the pcb having a problem. When I look at your different pics I saw that your via holes looks like this pcb has a hasl finish... and when i look at Q 14 this picture tells me that the pcb is not an
Electronics Forum | Fri Nov 16 03:38:03 EST 2018 | premkumar_haribabu
Hi all, We have to solder a nickel tabs ( coming in SMT reels ) in to HASL PCB finish pads using refow oven & during this we facing poor wetting issues, more voids & we done pull strenth , its came out with in 1 kg ,I doubt that nickel coated materi
Electronics Forum | Wed Jan 13 04:07:58 EST 2016 | crystalpcb
Hi Syed, I'm a PCB engineer from China. First:Immersion gold surface finish is the best for PCBs. Second:HASL(Lead-Free HASL) Then:HAL(with lead) The cheapest surface finish is OSP(After 15 days will be oxidized)
Electronics Forum | Tue Mar 24 09:50:45 EST 1998 | Justin Medernach
| Do I need to specify any type of special | finishing to my PCB manufacturer when having | boards fabbed that contain BGA footprints ??? | Thanks, | Stuart No special finish is required. I have assembled boards with BGA population that had HASL,
Electronics Forum | Fri Jun 29 05:50:27 EDT 2001 | nifhail
Thank Dave, your information was really helpful. Now that I have another few thousands of old datecode PCBs which has an Entek and HASL finished. Entek PCBs are about 6 � 1.5 years old and HASL boards are at 1 - 2 years old. To make it worse, s
Electronics Forum | Thu Jul 21 10:40:37 EDT 2011 | blnorman
What is the metal finish? Silver, HASL, Tin??
Electronics Forum | Thu Apr 14 17:24:06 EDT 2022 | cbart
depends on board finish and PCB substrate materials. If you were using OSP or silver finished bare boards the time to process is less than an ENIG or HASL finished. certain substrate material absorb more moisture than others or at a quicker rate. so
Electronics Forum | Wed Aug 19 15:24:21 EDT 2009 | smt_guy
I have a customer who approved and asked us to process PCB's built with Lead-Free HASL Finish using Eutectic Solder. We did as directed and inspected the result from a 10-PCB Run and couldn't find any problem with solderability or issues. What Issue
