Plating Processes

Products and Solutions

Plating Processes by Tanaka Precious Metals - Precious Metal Films Formation -

Plating Processes by Tanaka Precious Metals – Precious Metal Films Formation –

TANAKA offers high quality plating processes for a variety of applications.


We provide high quality plating processes in various fields from semiconductor and electronics components to decorative products.
Our advantage is our highly-skilled professionals can provide the best solution after adequately understanding the situation in which plating process will be used.

Plating Processes

  • Semiconductor packaging, gold electroplating
  • Wafers (for bumps and wiring patterns formation)
  • Connectors and contacts
  • Wafer level CSP/MEMS and others
  • Platinum, rhodium, palladium,
    and ruthenium plating
  • Silver plating

Support framework provided by whole TANAKA PRECIOUS METALS

EEJA Ltd. of the TANAKA PRECIOUS METALS offers plating processes to meet customer needs.
EEJA is a professional plating surface treatment company and provides a total array of technology solutions and services for surface treatment products needed in various fields, ranging from chemicals, equipment, processes and market information to consultation and other technology-related services.
As part of TANAKA PRECIOUS METALS, the largest precious metal manufacturer in Asia, EEJA can assure the future of the stable supply of precious metal materials, regardless of any market fluctuations.

Extensive facilities from the viewpoint of production sites

EEJA has all kinds of analytical, measurement, testing equipments and instruments to achieve improved plating performance and cost reductions. As the evaluation of plating performance of samples that customers are currently produced is possible at our laboratory, in which the environment is close to a mass production one, we can provide plating processes per customer’s specifications.

List of analytic, measurement, and test equipment and instruments

  • Capillary electrophoresis
  • Ion chromatography
  • X-ray fluorescence
    thickness gauge
  • Microhardness tester
  • Laser microscope
  • Liquid chromatography
  • Gloss meter
  • Potentiostat
  • Solder reflow tester
  • Bonding equipment
  • Color measuring device
  • UV-visible spectrophotometer
  • X-ray diffractometer
  • Inductively Coupled Plasma –
    Optical Emission Spectroscopy analyzer
  • Automatic titration equipment
  • Fine surface profile measuring device
  • Particle counter
  • Surface roughness meter
  • Contact Performance Tester
  • Strength Tester (Share Tester)
  • Liquid conductivity measuring device
  • Salt spray device
  • Surface tension measuring equipment

You can experience sample processing here!

Our outstanding expertise and extensive know-how will help lead your business to success. EEJA’s plant tours are available. You are welcomed to have a test plating using your samples and our plating equipments.Should you have any questions, please feel free to contact us.