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Techniques, tips, and helpful information
about circuit board rework and repair.


This free newsletter is a publication of
Circuit Technology Center and CircuitMedic.

March 25, 2009

About Us
For over 25 years Circuit Technology Center has been the world's most innovative specialist in circuit board rework and repair. Whether supporting you with our comprehensives services or with products from our CircuitMedic brand, our mission is simple. Save you money, save you time, and make your company more profitable.

Jeff Ferry, President
Peter Vigneau, GM
Andy Price, Sales Manager

Simplify BGA Rework
With unique adhesive backed stencils
imageIf you've been using metal stencils for BGA rework, we have some great news for you. A new type of stencil with adhesive backing. Easy to position and you'll eliminate paste bleed. Free sample.
CircuitMedic

Test Your Knowledge
Which one of these scientific concepts is not symbolized by a capital letter: power, force, velocity, electric charge.
See the answer below.

Did You Know?
Each unit on the Richter Scale is equivalent to a power factor of about 32. So a 6 is 32 times more powerful than a 5!

Seeking Perfection?
Get it right the first time
BGA component rework is a demanding, exacting business. Next time you need BGA rework, give a call to the experts.
Circuit Technology Center

imageJumper Wire Overload

Oops! Somebody goofed. Happens all the time. A routing miscommunication resulted in a significant problem for a customer. The circuit traces for 2 connectors were supposed to route to 2 adjoining connectors and vice versa.

If the circuit board connectors were not rewired and the mating daughter board was plugged in sparks would fly! Do to time considerations re-manufacture was not viable ...

Learn more ...

image
View of exposed inner layers in a non-plated hole.
X-Ray Finds Shorts in Drilled Holes

Drilling boards in the post-production environment is tricky work. Certainly if the circuit board is populated with components and other hardware, the setup alone can be time consuming.

Things get dicey when the drilling occurs at a location where internal planes project into the newly drilled hole, especially when the planes are separated by 12, 10, 5, or even 2 thousandths ...

Learn more ...


Industry Features

Optimizing Outsourced Medical Equipment Repair Depot Support
How Kimball Electronics triages and rescues product – and end-customers. Efficiently outsourcing repair of longer lifecycle ...
Circuits Assembly Magazine

Thermal and Process Sensitivity Beyond ICs
In the switch to lead-free solder, board assemblers had to raise their reflow temperatures by 5° to 20°C, from 320°C to as much as ...
Surface Mount Technology Magazine

Counterfeit components remains a huge electronics supply chain problem
Look around your house or office. There's a good chance one or more of the electronic products you use daily contain some counterfeit ...
EDN Magazine

IC Package to PCB Co-Design
Many interesting assembly methods and packaging techniques have been explored in the past to overcome the challenges of trying to make ...
Printed Circuit Design and Manufacture Magazine


imageCutting Circuits & Conductors

Quite often, a rework department is confronted with the task of cutting, rather than establishing, connections. Often called etch cuts or circuit cuts, such procedures involve breaking connections both on the surface of the circuit board as well as internally.

Severing inner layer circuitry is more complicated. In this instance, the exact location of the inner layer must be determined, sometimes with bright backlighting, but, more often (with thicker boards), through x-ray technology.

Learn more ...

A Circuit Board Operating Room
In one benchtop kit
The Professional Repair Kit is the most complete and most versatile circuit board repair kit you'll find anywhere. Repair damaged surface mount and BGA pads, plated holes, conductors, base board... It's the total package.
CircuitMedic

Quote of the Day
"If computers get too powerful, we can organize them into a committee -- that will do them in."
Bradley's Bromide

cartoon
"My PowerPoint presentation went so well, I had it made into a tattoo!"
Copyright © Randy Glasbergen

Before you consider the scrap barrel
Think about the impact on your bottom line
What happens to your valuable circuit boards when they're damaged? Can you repair them reliably? You might be surprised.
Circuit Technology Center

Test Your Knowledge
Which one of these scientific concepts is not symbolized by a capital letter: power, force, velocity, electric charge.
Answer: Velocity is represented by the small letter 'v', power "P", Force "F", electric charge "Q"  

Past Issues
December 14, 2009
November 23, 2009
October 27, 2009
September 29, 2009
August 25, 2009
July 28, 2009
June 24, 2009
May 26, 2009
April 27, 2009
March 25, 2009


Circuit Technology Center, Inc.
135 Ward Hill Avenue, Haverhill, MA 01835 USA
Copyright © 2009 All rights reserved.

CircuitMedic is a Circuit Technology Center Brand


A publication of Circuit Technology Center and CircuitMedic.
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