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iNEMI, creep corrosion, PCB reliability, PCB test, test

Mitigating Creep Corrosion with Effective Test

Creep corrosion is a common mode of corrosion-related failure. It occurs when metallization corrodes and the corrosion products migrate across printed circuit board (PCB) surfaces, causing electrical short circuit failures when they bridge neighboring features on PCBs. 

Creep corrosion is not a new phenomenon, but it has become a greater reliability concern in recent years for two reasons. First is the elimination of lead from electronics. Lead-based solders and surface finishes provided excellent corrosion resistance. However, the higher melting temperatures of lead-free solders and the poor wetting of copper metallization on PCBs forced changes to PCB laminates, surface finishes and processing temperature-time profiles. These changes resulted in a higher risk of creep corrosion on PCBs.

Second, the electronics market has expanded significantly in regions such as Asia where the environments, often humid and with high levels of sulfur-bearing pollution, have a high propensity for creep corrosion.

Prabjit Singh, IBM
By Prabjit Singh, IBM
on Sep 4, 2018 2:05:00 PM
   
Mitigating Creep Corrosion with Effective Test

Creep corrosion is a common mode of corrosion-related failure. It occurs when metallization corrodes and the corrosion...

Prabjit Singh, IBM
By Prabjit Singh, IBM
on Sep 4, 2018 2:05:00 PM
Value Recovery from Hard Disk Drives

The following is excerpted from “Value Recovery from Hard Disk Drives,” published by Forbes.com on July 13, 2018.

Tom Coughlin
By Tom Coughlin
on Aug 7, 2018 10:00:00 AM
The Process of Developing a Roadmap Provides Value to the Organizations Involved

Over the years, I've seen a lot of advantages of an industry having a roadmap. I believe that there are some key points...

Linda Wilson
By Linda Wilson
on Mar 12, 2018 1:17:54 PM
Flexible Hybrid Electronics Key to a Personalized Digital Future

Imagine grabbing your favorite scarf before you go outside to shovel the 12 inches of snow that fell the night before or...

Daniel Gamota
By Daniel Gamota
on Aug 24, 2017 12:59:40 PM
Packaging Innovation Maintains the Pace of Progress as Moore’s Law Scaling Slows

The 2017 iNEMI Roadmap includes a chapter on packaging and component substrates. This chapter is intended to provide focus and...

W. R. (Bill) Bottoms
By W. R. (Bill) Bottoms
on Aug 9, 2017 11:26:48 AM
iNEMI Roadmap Points to Ceramic Technology as a Key Enabler for 5G Devices

As the electronics industry continues its dramatic changes and 5G/IoT devices and applications become more prevalent,...

Howard Imhof
By Howard Imhof
on Jul 17, 2017 11:00:00 AM
Mass Data Storage Roadmap Points to Further Growth in NAND as well as HDD, Tape and Optical Technologies

Mass data storage technology for digital electronic systems is evolving and expanding in importance and impact.  

Roger F. Hoyt
By Roger F. Hoyt
on Jun 29, 2017 12:39:07 PM
Eco-Design: A 20-Year Forecast from the 2017 iNEMI Roadmap

You may have planned tonight’s dinner, and perhaps even have reservations for this summer’s vacation. But have you mapped...

Pamela Gordon, Antea Group
By Pamela Gordon, Antea Group
on Jun 8, 2017 10:01:38 PM
IoT is a Revolutionary Force in Many Areas

IoT is an infrastructure of networked objects (cyber-physical devices, information resources, and people) that interact with...

Satish Parupalli, Intel
By Satish Parupalli, Intel
on Mar 30, 2017 7:58:56 PM
What  Does the Future Hold for Electronics Manufacturing? 2017 iNEMI Roadmap to be released in April; webinars scheduled

The 2017 iNEMI Roadmap — our most comprehensive roadmap to date — is scheduled to go on sale in April. This latest edition is...

Chuck Richardson
By Chuck Richardson
on Mar 9, 2017 5:25:40 PM

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