<span id="hhv12"><video id="hhv12"></video></span>
    <var id="hhv12"><tr id="hhv12"></tr></var>

      <legend id="hhv12"></legend>
      <ol id="hhv12"></ol>

      Shenzhen Grande Electronic Linkedin Page
      Shenzhen Grande Electronic Co., Ltd logo
      E-mail us for a Quote:
      sales88@greattong.com
      Call us now:
      +86-755-83261869

      Technical Article


      PCB Fabrication ENIG vs HASL : Different surface finish techniques

      Time:2017-04-28 09:27:12 Click:

      There are many types of surface finish used for plating the Printed Circuit Boards(PCB). E.g. Organic Surface Protectant (OSP), Immersion Silver (IAg), Immersion tin, Electroless Nickel with Immersion Gold coating (ENIG), and direct gold plating (over nickel). Among them, HASL and ENIG have been dominating the market for decades. HASL had been famous in the past and ENIG is gaining market nowadays. Due to anti lead laws in EU, China, California, etc, demands for ENIG have increased in the past few years. 
      PCB Fabrication HASL

      HASL is less environment friendly than ENIG. Choosing ENIG over HASL, reduces the use of lead and emission from flux and fusing oil. HASL might seem cheaper than ENIG for 2 layer boards but as we go for more layers, the cost for ENIG and HASL plating would be very close to each other. 

      HASL has a excellent solder-ability and has a good shelf life. ENIG has excellent corrosion resistance, it is good for aluminum wire bonding, excellent for fine-pitch technology, excellent solder-ability and excellent shelf life. 

      The first picture is from one of my HASL plated boards and the second one is from one of my ENIG plated board. 
      PCB Fabrication ENIG

      Previous:PCB Assembly: Double-Sided Circuit Board Assembly

      Next:PCB Layout: Essential PCB Design Rules


      Request an Official Quote

      Questions

      E-MAIL

      File Upload

      Upload a list of files

        Please upload your Gerber files and BOM. You can upload an unlimited number of files as long as the total size of all files does not exceed 20 MB. To ensure you receive your official quote in less than 24 hours, please include the quantity of circuit boards for which you would like a quote.

        If you require that we sign a Non-Disclosure Agreement (NDA), please send it to us prior to sending your files and we will be happy to accommodate.

         
        Home About Us Services Quality Pb-Free News Contact Us


        Copyright ® 2017,Shenzhen Grande Electronic Co., Ltd. All Rights Reserved. 中文站 Sitemap

        18禁美女裸体无遮挡免费观看