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NEWSLETTER: February 7, 2018
Solder Mask Touch-Up At BGA Sites
Solder Mask Touch-Up At BGA Sites
Solder mask has one primary purpose at a BGA site, and that is to isolate solder wetting to a specific area so that a good solder joint will be formed. Solder mask usually isolates the pad from the conductor, or from the track leading to a via or plated hole. Sometimes the track and hole are completely masked; sometimes there is only a thin "dam" of mask between the pad area and exposed track and hole. This dam or masking is delicate and easily ...
Feature Story
Solder Joint Explosions
Ask the Experts
We have seen joint voids that look like "explosions" after wave soldering. Some members of the team believe the problem is caused by humidity brought to the process by the bare board. The problem was solved by changing the ...
Ask the Experts
Must Have Circuit Boards First-aid Kits
Must Have Circuit Boards First-aid Kits
These kits have been used for decades by the most demanding electronics manufacturers. Every item is thoroughly field tested.
Learn more ... .
Perfect Kit for Replating Gold Contacts
Perfect Kit for Replating Gold Contacts
There's simply no reason to scrap circuit boards when they have contacts contaminated with solder. Restore them using the Gold Contact Plating Kit.
Learn more ... .
Soldering Improvement for SMT Connectors
Solder Mask Touch-Up At BGA Sites
As Original Design Manufacturers adopt the use of finer pitch connectors with increased pin counts on PCB assemblies, it has become challenging for EMS companies to build to a very low defect rate. In this paper the authors ...
Technical Library
Soldering Long Gold Plated Pins
Solder Mask Touch-Up At BGA Sites
Soldering to gold has never been a flawless exercise. Concerns about the quality and quantity of gold finishes buzz around the soldering process like annoying horseflies, drawing blood whenever your guard is dropped. Soldering gold ...
Feature Story
Six Fast Fixes for Circuit Boards
Six Fast Fixes for Circuit Boards
Use this versatile kit to fix damaged SMT pads, lands, gold edge contacts, conductors, plated holes and base board. It's the total package.
Learn more ... .
Epoxy Packs Eliminate Measuring
Epoxy Packs Eliminate Measuring
This unique kit contains 10 packages of super strength epoxy, precisely measured out into two-compartment plastic packages.
Learn more ... .
Realizing the Potential of 4D Printing
Solder Mask Touch-Up At BGA Sites
As additive manufacturing technology moves from research and prototyping to mainstream production, researchers are shifting their attention to producing structures that can transform in a pre-programmed way in response to a stimulus. The technology needed to create such products has been given the ....
Technology Briefing
Published By
Circuit Technology Center
CircuitMedic
Contributors
Andy Price, Bob LePage, Ronna LaBranche, Jose Irizarry, Ted Farnham, Bun Chhouy, Peter Vigneau, Jeff Ferry

Since 1983 Circuit Technology Center and CircuitMedic have been recognized as the world's most innovative and reliable specialists in circuit board rework and repair services and products.
Trivia Question
What does the computer term WORM stand for?
See the answer below.
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Quote of the Day
"Whether you think you can or whether you think you can't, you're right!"
Henry Ford
Cartoon
"We've devised a new security encryption code. Each digit is printed upside down."
Copyright © Randy Glasbergen
Trivia Answer
Write Once Read Many which describes a data storage device in which information, once written, cannot be modified.
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Haverhill, MA 01835 USA
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