ENEPIG process

ENEPIG process

Electroless nickel, electroless palladium and semi-autocatalytic gold plating

Umicore's ENEPIG process provides an universal finish to the PCB industry with excellent wire-bonding performance and the highest degree of solder joint reliability (SJR) with lead-free SAC 305 alloy. The palladium slows the diffusion of tin into the nickel resulting in a minimum thickening of the nickeljtin IMC (= intermetallic compound), even following thermal stress of 1000 hours at 150 °C.

The possible use of unique semi-autocatalytic gold electrolyte Gobright® TWX-40 also enables to deposit even thicker gold layers with very uniform thickness distribution depending on customer requirements. The combination of electroless processes (nickel and palladium) and the final gold plating with this special type of electrolyte ensures a corrosion-free final finish system for highend applications and mixed assembly processes on same surface.

Moreover ENEPIG films are less expensive in comparison to electrolytic or electroless bondable gold like ENAG (= Electroless nickel + Autocatalytic gold) and additionally comply with latest RoHs and WEEE regulations.

Advantages

  • Universal finish for soldering and wire-bonding applications
  • Highly robust solder joints with SAC solder
  • Excellent contact surface
  • Electroless process
  • Less expensive than electrolytical gold finishes
  • Dense and homogenous gold protection layer from 0.03 - 0.3 μm

Applications

  • IC package PCB substrate
  • Multi-functional assembly
  • PCB for harsh environment

Downloads

  • Produktblatt-umicore-enepig-en-screen-20190417.pdf
    Download

Your contact person

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316
Email

Find a representative in your region

×

      Umicore uses certain monitoring and tracking technologies such as cookies. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience.

      By clicking on the "Accept all" button you agree to the use of these cookies while using the website. For further information regarding how we use cookies and other tracking technologies, please see section 10 of our website privacy notice

          Necessary cookies are essential and help you navigate our website. This helps to support security and basic functionality and are necessary for the proper operation of our website, so if you block these cookies we cannot guarantee your use or the security during your visit.

          Cookies that help us to understand the behaviour of users of our website. This allows us to continuously improve our website to provide the best information in support of our project aims. These cookies also help us understand the effectiveness of our website. For instance these cookies tell us which pages visitors go to most often and if they get error messages from web pages.

          Cookies that deliver content to you based on your interests, which are assumed from your browsing history. Most Targeting Cookies track users via their IP address and, thus, may collect some Personal Data. Personal Data collected by Targeting Cookies may be shared with third parties, such as advertisers.