Contact Us

Use the form on the right to contact us or,

email us at info@elmetlabs.com,

or call us at (248) 957-1170.

We will get back to you as soon as possible.

24073 Research Drive
Farmington Hills, MI, 48335
United States

(248)957-1170

Elmet LLC is primarily a metallurgical and metallographic laboratory focused on the electrical and electronics industries.  All circuit boards, connectors, clips, cages, and electrical devices have metallic components that can suffer damage or fail due to causes such as fatigue, corrosion, stress overload, dendritic growth, and fretting.  These are metallurgical issues, not electrical issues, and a metallurgical perspective brings insight into the problem.  We provide that insight through investigation and thorough explanation of the metallurgical factors at work, from manufacturing defects to design to conditions of use.

Much of our work is solder joint cross sectioning, and we have a large capacity to handle this type of work.  With five automated polishers we can process more than 20 cross sections per day, day after day.  We have two metallographic studios with studio cameras, stereomicroscopes, and metallurgical microscopes to document the incoming parts, the cross sections, and the microstructures. Our scanning electron microscope assists us in evaluating intermetallic layers, microstructures, fretting, and fracture.  The EDS (energy dispersive spectroscopy) system allows us to analyze solder compositions, contamination, and debris observed on circuit boards.

We have staff holding certificates in IPC-A-610 inspection (CIS), electrical engineering, and metallurgical engineering, and we have a great deal of experience with failure analysis of metallic components. 

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PCBA Visual Inspection

IPC-A-610 is the industry’s most widely used visual inspection standard for assembled circuit boards. Elmet has IPC certified inspection trainers (CIT) and certified inspection specialists (CIS) on staff who regularly perform visual inspections to IPC-A-610, as well as to other inspection criteria supplied by customers. 

PCBA Visual Inspection / IPC-610 Inspection / GMW3172

IPC-A-610 is the industry’s most widely used visual inspection standard for assembled circuit boards.  It supplies quality standards for many features of circuit board fabrication such as solder fillet size, component placement, and board cleanliness.  Although written as a standard for as-manufactured boards, IPC-A-610 is often cited as an inspection standard for circuit boards that have gone through environmental or service testing. 

Elmet has IPC certified inspection trainers (CIT) and certified inspection specialists (CIS) on staff who regularly perform visual inspections to IPC-A-610, as well as to other inspection criteria supplied by customers. 

Description of PCBA Visual inspections

IPC-A-610 provides specifications for lighting and the magnifications used.  Most inspections are conducted at IPC-A-610 mandated magnifications of less than 20X, with 40X listed as the “referee” magnification.  Higher magnification inspections are hindered by the limited depth of field of optical imaging.  Elmet solves this problem by Z-stacking the focus plane of multiple photographs to achieve a fully in-focus photograph at high magnification.

Sample circuit board with a single plane of focus

The same sample, but Z-Stacked

Deliverables

Elmet thoroughly documents the inspections with representative photographs of the circuit board and all features of interest such as cracked solder joints, damaged components, corrosion or dendrites, fretting, and staining, if observed. All photographs and a summary of the findings are presented in a written report.  The inspection report is intended to provide a snapshot of the board condition, good or bad, at the time of inspection. CLICK HERE for an example report.

What to do next

In order to provide a quote, we will need a description of your requirements.  This could be broad, such as "inspect for cracks," or it can be specific, such as "inspect the board per IPC-A-610" or any other requirement. It is also helpful to see a photograph or layout of the circuit board and we need to know how many circuit boards you want inspected.  You can phone us if you have questions, or email us the layout and we will contact you. Or, visit our Price Estimation form if you want a fast, informal idea as to scope of your project!