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Feature Articles
Beyond Repair... Think Again
All too often, valuable circuit boards are scrapped due to base material damage. Actually, boards with base material damage can be ...
Keysight Technologies Adapter Rework
This procedure provides an overview of the process for installing Keysight Technologies DDR2 DRAM BGA Probes onto circuit board ...
Reworking Internal Connection at a Via Hole
This procedure was used to modify a batch of circuit boards that had a signal error at a via hole location ...
Questions to Ask When Salvaging Components
Have you heard this one before? A manager walks into a meeting and is told that there is one million dollars worth of circuit assemblies ...
Jumper Wire Nightmare
Feature covers the process to use a significant number of jumper wires to correct a major connector mismatch ...
How To Restore Missing Internal Layer Connections
Several multilayer backplanes were mistakenly manufactured with missing plating for 24 holes. Learn how this challenging problem ...
6 Common Mistakes of BGA Rework
Procedures for BGA rework are well-defined and long established, but there are six common mistakes. These mistakes can be costly leading ...
Isolating a Plated Hole From Ground
Once involved in rework and repair, you quickly realize that all the tools you need to get the job done are just not always available ...
11 Rules for Circuit Board Mods
Some of the odd twists and turns occasionally needed to modify assembled circuit boards can be surprising. This feature includes 11 ...
Backplane X-ray Analysis
This is one of those things that drive people in this business mad. A very expensive and difficult board, which once on the job has to ...
Scrapes and Breaks Repaired
Millions of dollars are spent each year on the care and handling of circuit assemblies. Nevertheless, to the frustration of everyone ...
Unique Ground Plane Transplant Repair
In the world of rework and repair there can never be a standard procedure for every emergency. Things can happen too quickly ...
How to Select the Right Eyelet for Plated Hole Repair
One of my favorite circuit board repair procedures is Plated Hole Repair. Even in today's high tech world there are still thousands ...
Solder Mask Rework at a BGA Site
What happens when a BGA socket is phased out, but the solder mask is not updated. Solder mask is not needed for sockets, but ...
Cutting Circuits and Conductors
Quite often, a rework department is confronted with the task of cutting, rather than establishing, connections. Often called etch cuts ...
X-Ray Finds Shorts in Drilled Holes
Drilling boards in the post-production environment is tricky work. Certainly if the board is populated with components and ...
Exploding Solder Balls
Could such a thing occur? People solder tens of thousands of BGA components a day. Most of this activity occurs in the flow of ...
Challenging Connector Rework
This project involved rework of large connectors. The challenge was complicated due to the need to avoid overheating many jumpers wires ...
Conductor Repair - When Appearance Counts
Repairing a damaged circuit with a wire is commonplace, but the repair will shout out "Look at me, I've been repaired!." When you want ...
Alternative to Dead Bug Rework
This is an example of a project where the solution was more reliable, less labor intensive and much more elegant that the ...
The Most Essential Tool for Repair Techs
Microscopes have become essential tools in the rework and repair department. While there have been (and still are) many applications ...
Solder Mask Touch-Up At BGA Sites
Solder mask is delicate and easily damaged or dislodged during BGA rework. If it isn't repaired, the result is often more rework ...
Soldering Long Gold Plated Pins
Soldering to gold has never been a flawless exercise. Concerns about the quality and quantity of gold finishes buzz around the ...
Rework for Pad and Component Mismatch
It's a wonder pad to part size mismatch doesn't happen more often, considering the thousands and thousands of opportunities on ...
The Repair Technician Hall Of Fame
Is there a Repair Technician Hall of Fame? I don't know the answer, but I do know Dale Granger-Eckert would have to be a founding ...
How to Use a Solder Fountain
A complicated, time-consuming procedure is transformed into a quick and easy fix. Rework departments regularly encounter large ...
How Reliable Is Your Rework?
Can you fix a broken corner on a circuit board reliably? Do you consider re-balling ball grid array (BGA) components to be a reliable ...
Solution for BGA Footprint Mismatch
You have a new board and the BGA component doesn't fit the board footprint. Is this a nightmare of a problem? It is one we see every ...
Flash Memory Card Rescue
What do you do when a Flash memory SD card containing photos of President George W. Bush and your client in the White House breaks ...
4 Techniques for Removing Solder Mask
There are several safe and reliable ways to remove solder mask from the circuit board surface. They all have advantages and disadvantages ...
Trimming Conductors In Very Tight Places
Anyone familiar with high-frequency and microwave printed circuits understands the sensitive design considerations each requires ...
Review of Hot Air Component Rework
When surface-mount components started to take over, edging out through-hole components, a number of hot air-based rework systems ...
Restoring Gold Edge Connectors
From time to time, gold edge contacts become contaminated with solder. This most often occurs during reflow of an assembly, and may ...
Changing a Conductor Path at a BGA Site
This feature describes how to rework a BGA site. The rework involved changing the circuit paths at the BGA sites, which required ...
Base Board Burn Repair - How and Why
Cosmetic surgery is big business today, but our discussion here is not about facelifts or tummy tucks. We're concerned with the ...
Ten Rules for Jumper Wires
The procedures for attaching jumper wires are fairly extensive. However, there are a number of general rules that should be ...
Tips for Rework of Large Scale BGA Components
You've just been given a board with a shorted BGA site. BGA rework is complicated enough, but in this case the challenge is ...
Are Your BGA Rework Operators Competent?
Can every operator handle your BGA rework equally well? In real life, in all but just a few situations, the answer is ...
Challenging Gold Contact Repair
In the electronics industry, gold plating is ancient technology and the problems encountered in plating are just as ancient. Unfortunately ...
Tips For Connector Removal and Replacement
Quickly removing and replacing a large multi-pin connector seems a daunting task, but it really isn't. Here's how it can be done ...
A Solution for Broken Pin Repair
While working with an extremely expensive prototype component, a tech broke off one of the pins at the base near the component body ...
BGA Conductor Path Re-design
This re-design centered around a 676 ball BGA component. A total of 23 of the balls on the BGA were not connected where they needed to ...
How to Fix Press-in Fastener Damage
Press-in fasteners provide a solution to various chassis, heat sink, stiffener, and other hardware mounting demands ...
Tips and Tricks for Successful Rework
Although soldering is one of the oldest know joining techniques, manual or hand soldering is still a process highly dependent upon individual ...
Adding A Via Hole
We've all heard of via in pad, blind vias, even buried vias, but have you ever experienced the "Via to nowhere" phenomena? Well, here's ...
3 Options for BGA Rework
No matter how much we attempt to streamline and automate the process, BGA rework has been, and will likely always be, a mixture of ...
Edge Milling to Reduce Board Thickness
It's not unusual for circuit boards that have been fabricated with a thickness greater than .062" to require additional milling to reduce ...
Potted QFP Rework Challenge
Ordinarily removal and replacement of a QFP is a straightforward rework project. In this case however, the boards were completely ...
Rework Option Eliminates Jumper Wires
A customer identified a design error involving two circuits that were incorrectly routed. Learn how this type of rework can be completed ...
Damaged Mounting Hole Repair
For this repair we're looking at the process to correct base board damage at an ejector handle location. The ejector handle is often ...
Options for Gold Contact Rework
Gold edge contacts can become worn, damaged or contaminated by solder and must be either repaired and restored, or replaced ...
BGA Component Site Modification - Is It Possible?
BGA rework is a topic about which volumes have been written, and in most cases the focus has been on component removal and ...
Big Time Damaged Conductor Repair
A batch of multi-layer circuit boards with a large hole drilled completely through by mistake. This can be a tough error to recover from when ...
Case of the Missing SMT Pads
Everyone loves a good mystery, unless, of course, that mystery has to do with something important that's missing from your valuable circuit ...
Solder Joint Opens - What To Do?
Solder joint opens are often found through x-ray inspection or during the test. You may be inclined to re-heat and reflow the ...
Rework for Internal Conductor Mismatch
The team at Circuit Technology Center was put to the test when a large OEM discovered a designed problem with 50 prototype ...
Converting Tin/Lead BGA Pads to Gold Plated
The challenge with a rework that involves the removal of a soldered BGA to install a socket is most often the pads will need to be gold ...
Preventing BGA Component Warp During Rework
This article deals the occasional tendency of larger (and thinner) BGA components to warp during rework causing bridging and shorts ...
Inner Layer Conductor Modification
Feature covers need to restore a ground plane that should have served as a return path for signals between plated through holes in ...
X-Ray System Eye Opener
Feature displays various x-ray images of circuit boards and reviews how to analyze and pin-point defects ...
Rework for Missing Ground Connections
This problem deals with a circuit board with a series of plated through holes that are not connected to ground. It would seem easy ...
Customer Comments
"I just wanted to let you know, the 10 circuit boards that you touched up in the BGA area, all worked well. Thank you for your help. This is one happy customer."
G.C. Lowell, MA USA
Keep This Plated-Hole Repair Kit Handy
Keep This Plated-Hole Repair Kit Handy
Plated holes in circuit boards are easily damaged. This kit includes all the tools and materials needed to repair damaged plated through holes.
Learn more ...
Are Your BGA Rework Techs Competent?
Are Your BGA Rework Techs Competent?
Can every operator handle your BGA rework equally well? In real life, in all but just a few situations, the answer is no. Why is this so?
Learn more ...
Jumper Wire Hassles Eliminated
Jumper Wire Hassles Eliminated
Throw away that super glue and eliminate that super glue mess. Clean up your act when bonding wires. Wire Dots make the job clean, neat and fast.
Learn more ...
11 Rules for Circuit Board Mods
11 Rules for Circuit Board Mods
Some of the odd twists and turns occasionally needed to modify assembled circuit boards can be surprising. Discover the 11 rules your techs should know.
Learn more ...
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