STI Acquires Fischerscope X-ray XDAL 237


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STI Electronics Inc. has acquired a new Fischerscope X-ray XDAL 237 energy dispersive X-ray fluorescence (EDXRF) system.

The Fischerscope EDXRF measuring instrument has a silicon drift detector, allowing a higher resolution for light elements, from aluminum Al (13) to uranium U (92). Not only can this system non-destructively measure various plating thicknesses on printed circuit boards and/or components, it also can measure and analyze very thin coatings (

The measurements of the plating thickness include but are not limited to the following plating stack-up combinations:

  • Electroless Nickel / Immersion Gold (ENIG)
  • Gold / Palladium / Nickel / Copper
  • Immersion Tin / Copper
  • Immersion Silver / Copper
  • Tin-Lead / Copper

Mark McMeen, Vice President of Engineering Services, said, "This additional capability to perform non-destructive determination of the weight percentage of Pb (lead) and Sn (tin) in the plating accommodates the growing need for this type of testing. With both the SEM/EDS and the new EDXRF, STI’s Analytical Services Department can now better provide for customer demands."

About STI Electronics Inc.

Since 1982, STI Electronics Inc. (STI) has been the premier full-service organization for training, consulting, laboratory analysis, prototyping, and small-to-medium volume contract PCB assembly in the electronics industry. STI also produces a complete line of solder training kits and training support products. For more information, click here.

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