New Equipment | Assembly Services
One-stop PCB and Assembly Manufacturers Specialized in one-stop PCB and Assembly manufacturing, Heros Electronics is committed to providing quick-turn high quality custom PCB and smt assembly to our customers all over the world with affordable pri
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New Equipment | Assembly Services
One-stop PCB and Assembly Manufacturers Specialized in one-stop PCB and Assembly manufacturing, Heros Electronics is committed to providing quick-turn high quality custom PCB and smt assembly to our customers all over the world with affordable pri
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).
Electronics Forum | Sat Jul 18 00:23:41 EDT 2015 | davidkimi
ENIG finished is recommend. But the price is a little higher. For the PCB, I recommend Elecrow PCB service. You will see the PCB fabricated there is really cheap and the quality is really good.
Industry News | 2011-12-21 22:41:39.0
Offering convenient and cost-effective staff development, IPC announces its Winter Webinar Series for January, February and March 2012. The one-hour webinars which focus on critical issues facing the industry, offer companies an opportunity to bring IPC technical information to a large number of employees at one time.
Industry News | 2020-02-18 15:10:01.0
IPC presented Committee Leadership, Special Recognition and Distinguished Committee Service Awards on February 3 and 5 at IPC APEX EXPO 2020 at the San Diego Convention Center. The awards were presented to individuals who made significant contributions to IPC and the industry by lending their time and expertise through IPC committee service.
Technical Library | 2023-01-10 20:15:42.0
Over the past years there has been consistent growth in the use of electroless nickel / immersion gold (ENIG) as a final finish. The finish is now frequently being used for PBGA, CSP, QFP and COB and more recently gathered considerable interest as a low cost under-bump metallization for flip chip bumping application. One of the largest users for this finish has been the telecommunication industry, were millions of square meters of PCBs with ENIG have been successfully used. The nickel layer offers advantages such as multiple soldering cycles and hand reworks without copper dissolution being a factor. The nickel also acts as a reinforcement to improve through-hole and blind micro via thermal integrity. In addition the nickel layer offers advantages such as co-planarity, Al-wire bondability and the use as contact surface for keypads or contact switching. Especially those pads, which are not covered by solder need a protective coating in corrosive environment – such as high humidity or pollutant gas.
| https://www.eptac.com/ask/failing-to-remove-gold-plating-in-final-assembly/
board’s acceptance in final assembly? More Questions Component Rework Clarification Soldering Minimum Space Requirements Gum and Hard Candy at a Workstation Soldering onto Platinum Pins Inspection Criteria for Unique Lead Geometry Question
Surface Mount Technology Association (SMTA) | https://www.smta.org/icsr/speaker_forms/Paper-Format-Requirements.doc
. However, issues relating to high rates of copper (Cu) dissolution occurring during the PTH rework process using either SAC305 or 405 alloys may force a change in this concept
