Clean PCBAs enhance medical device reliability

Posted By : Nat Bowers
Clean PCBAs enhance medical device reliability

Digicom Electronics has published a white paper, titled 'Cleanliness of PCB Assemblies Leads to Medical Device Reliability'. The paper explains how design and manufacturing conditions, along with myths about board cleanliness and contamination, have exacerbated the cleanliness problem, and shows how cleaning can eliminate board contamination for medical devices.

Mo Ohady, General Manager, Digicom Electronics and co-author of the paper, commented: "Component manufacturers are continually developing new and smaller packages for components that are mere fractions of a millimetre and have board to component clearances of less than a mil. Pick and place machines have new accessories that allow placement of these almost invisible parts. Components are placed extremely close together. After a considerable amount of research and experimentation, we found that it takes a special combination of chemicals, temperature, wash cycles, timing, and equipment to adequately clean under parts that small."

"Research shows that many failures are a result of printed circuit boards that are not clean enough of contaminants from the manufacturing process. For medical devices, however, the potential for failure is very real and the effects of failure can be devastating," added David Estes, co-author and Engineering Specialist, Digicom Electronics.

In many instances it was found that a combination of comparatively minor points, when combined, led to processes that do not work well in today's manufacturing environment, though their performance in the past was adequate. When products are less susceptible to corrosion-induced failures, maintenance and repair are minimised and costs reduced.

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Imagineering Fair at Bath & West Show
30th May 2018
United Kingdom The Royal Bath & West Society Showground, Somerset
PCIM 2018
5th June 2018
Germany Nuremberg
Developing secure and scalable IoT solutions
21st June 2018
United Kingdom Cocoon Networks, London
SENSOR+TEST 2018
26th June 2018
Germany Nürnberg Exhibition Centre
European Microwave Week 2018
23rd September 2018
Spain Ifema Feria De Madrid