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  • What is an External Visual Inspection?
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INSPECTION, ELECTRICAL & VERIFICATION, TESTING

What is an External Visual Inspection?

  • Posted by David Ramirez - Cruzado
  • On May 21, 2020
  • 0

Consists in a non-destructive optical inspection. Binoculars with magnification between 1x and 60x and with a relatively large and accessible field of view are employed for this purpose.

The aim of an EVI (external visual inspection) is to verify the conformity of the exterior of electrical, electronic and electromechanical components (EEE parts) with the acquisition document. The following aspects should be considered:

  • Marking
  • Aspect of Materials
  • Workmanship
  • Sealing
  • Leads
  • Feedthroughs

The EVI (External Visual Inspection) is usually the key tool to assess the quality of parts, e.g. during a customer source inspection (Buy-off). Additionally, this inspection is of great relevance and also especially indicated for such large test sequences as 100% screening, qualification and evaluation testing, counterfeit investigation and many others. It is also utilized to inspect damage caused by handling, assembly and/or testing of the packaged device.

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David Ramirez - Cruzado
David Ramirez - Cruzado
Analysis Inspector at Alter Technology
David works as an analysis inspector in the area of Incoming Inspection, Destructive Physical Analysis & Failure Analysis in Alter Technology laboratories.
David Ramirez - Cruzado
Latest posts by David Ramirez - Cruzado (see all)
  • Internal Visual Inspection of Hi-Rel EEE Parts - November 6, 2020
  • What is an External Visual Inspection? - May 21, 2020
  • Identifying Leakage Pathway with a Penetrant Dye Gross Leak Test - March 13, 2019
TAGS: DPA EEE PARTS PROCUREMENT INCOMING INSPECTION SCREENING Testing Method

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