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Do You Need Ionic Vision?

12/9/2015

2 Comments

 
While chemistry may seem an unlikely discipline to measure the risk of electronic failure, it has proven to be invaluable in assessing damage and recovery after a disaster. Armed with industry standard and approved methodologies and quantifiable data as proof, Coastal Technical Services is unraveling some of the age old questions relating to electronic restoration.

Printed circuit board and component manufacturers have known for years that ions (atoms that are positively or negatively charged) cause corrosion on printed circuit boards and provide a pathway for stray/ damaging electrical signals between circuit components. As the performance of modern devices has escalated and circuit complexity grown exponentially with each generation, the tolerance for contamination has correspondingly shrunk. In today’s electronic systems, levels of ions no greater than that left by a fingerprint are sufficient to damage a circuit. Visual inspections are simply inadequate when the measure of acceptable residue levels are in the “parts per million” range.

The IPC organization is a worldwide consortium of electronics manufacturers that has set standards for electronic circuit cleanliness. Using Ion Chromatographic analysis of samples harvested from board assemblies per IPC-TM-650-2.3.28 as specified in the IPC/EIA J-STD-001C Joint Industry Standard- “Requirements for Soldered Electrical and Electronic Assemblies,” the Coastal Technical Services laboratory is equipped to assess the nature and extent of a contamination event (fire, hurricane, flood, toner spill, extinguisher release, environmental exposure, etc.)
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IPC-TM-650 Ion Chromatographic data provides a quantified and calibrated gauge for our analyses, and a basis upon which expert judgment can be understood, documented, and scientifically supported. It allows us to:  
  • Trace the source of contamination.
  •  Decide whether equipment was involved in a disaster and avoid the cost of replacing or restoring unnecessary components. 
  • Characterize the chemical composition of residue and tailor the remedy accordingly.
  •  Take before and after “snapshots” of cleanliness to document the success of restoration measures. 
  • Establish objective expectations for all involved parties.
  •  Communicate results, and support one’s position in the event of litigation.
With years in the technical recovery business, Coastal Technical Services has heard much of the common wisdom from both believers and disbelievers. In the end, we believe that unbiased scientific data tells our story best. Thus, this “work in progress” addresses some legitimate concerns and questions by presenting real world case studies, photographs, and experience. We will add to this paper as new lessons are learned, and technology unfolds.
2 Comments
Ontario link
2/17/2021 11:08:46 am

Thankks for the post

Reply
Masonry Tallahassee link
8/18/2022 06:22:34 pm

Nice blog post

Reply



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    Greg Vorhis, 

    Technical Director, Coastal Technical Services

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