Full Site - : enig vs hasl (Page 12 of 22)

Cpk Variables Control for Paste Printing

Electronics Forum | Thu Apr 04 09:22:35 EST 2002 | itempea

What are the normal control limits in the industry, for a well controlled process, using a 6 mils stencil? Should they be different according to the surface finish (higher UCL for ENIG, Im SN, etc, lower UCL for HASL)? Thanks, Ioan

Recommended board finish for 0402s

Electronics Forum | Mon Jun 10 22:14:49 EDT 2002 | davef

While they're '50 pitch', you need to think of 0402 as fine pitch parts. So, ENIG, imm silver, and imm tin finishes and probably OSP would be good choices. Stay away from HASL.

PC Assembly of 0.5mm pitch array Chip Scale Package with HASL fi

Electronics Forum | Fri Dec 19 09:57:07 EST 2003 | davef

We agree with Deano. Can you use ENIG on your board?

Poor reflow over gold plating

Electronics Forum | Wed Jun 29 17:18:41 EDT 2005 | GS*

Very interesting tread, many thanks to all. Matt please, now what does it mean for you? Will your custmer accept dull solder joints or will the plating be changed ? (ie. HASL, ENIG, etc) Tnks and regards GS*

ENIG-BLACK PAD!!!!

Electronics Forum | Fri Dec 08 00:02:35 EST 2006 | Jack

Hi all, I found this article (Dealing with "the black pad defect)about reworking bare PCB with black pad symptom...Use HASL to treat black pad..Have you guys try this before?? www.smta.org/files/SMTAI01-Jay

SN100C Selective Solder Voiding

Electronics Forum | Mon Nov 10 12:29:59 EST 2008 | joeherz

Dave, You've got me worried - All of the boards we've tested to this point are LF HASL. Why do you say "can't be ENIG"? Am I missing something? We have not sectioned soldered boards as yet but plan to shortly. Thanks.

PCB Surface Finishing for good solderability & rework

Electronics Forum | Wed Jul 15 12:20:52 EDT 2015 | dyoungquist

If you are using lead solder (SnPb) HASL is a good choice. If you are using lead-free (RoHS compliant) solder then I would recommend Immersion Gold (ENIG).

not good soldering

Electronics Forum | Mon Sep 17 12:21:43 EDT 2018 | bpeay

M_, the parts may be similar but the boards look to be different. Is the thermal relief for each lead on each board the same? what is the board finish, HASL, Enig, OSP or other? The part itself may not be your problem but the part that is partial pla

Pick and Place Startup - LQPF100 bridging issues

Electronics Forum | Fri Mar 26 15:48:31 EDT 2021 | grahamcooper22

Leaded HASL on small pads can be quite difficult to print on...the HASL tends to be domed rather than flat..and that can affect print quality...you really need a perfectly flat pcb pad to print paste on when you are assembling 0.5mm QFPs. If the pcb

HASL surface finish

Electronics Forum | Mon Jun 15 16:31:25 EDT 2020 | rgduval

You may find some wetting issues running LF HASL with 63/37, as your reflow temperatures will be significantly below the LF reflow. On fiducials...if you don't have a quote for your boards with ENIG, I would recommend at least checking it out. It's


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