Surgeon grade rework and repair, by the book and guaranteed.®
Newsletter | Contact Us
Phone: 978-374-5000
Scrapes and Breaks Repaired More Features
Scrapes and Breaks Repaired
Photo 1: Base board edge damage.
Millions are spent every year on the care and handling of circuit assemblies. Nevertheless, to the frustration of everyone involved, handling damage occurs.

Boards, components, and assemblies are dropped, bumped, nicked and dinged with annoying regularity. Not long ago we were presented with a board severely cracked from edge to edge.

One of the mighty international carriers ran over the box containing this board. That's right, ran over, as in with a truck.

Scrapes and Breaks Repaired
Photo 2: Micro-Drill and Ball Mils used to prepare the damaged surface.
Believe it or not, even that level of damage can be fixed. When it comes to handling hiccups, far more common are the less traumatic impacts that cause less damage, but nonetheless make affected assemblies worthless. For example, take a look at the damage in Photo 1.

Who knows how these things happen? Perhaps it goes down like this. Out on the floor there's a loud bang and everyone within hearing distance runs to check. Once the operator's safety is assured, the product is assessed and if the stars are crossed, a board or assembly is found damaged. Oh boy, what do you do now?

Scrapes and Breaks Repaired
Photo 3: Damaged and frayed material removed to prepare the circuit board surface for epoxy repair.
Let's take a look at the possibilities. Repair policy differs from company to company; some will repair anything they can, some allow no repair. Most companies have created some sort of repair and rework framework. Whenever considering repairs you're well advised to determine if your company policy specifically addresses your needs.

Many times repair is permitted, but the specifications for repair are not defined, or the type of repair is not even mentioned. That's where we can help.

In the case of the board in Photo 1 there is a set of instructions that can guide an experienced repair technician to bring the board back to an acceptable condition. Our web site contains a "Guidebook" for this type of repair.

See: 3.5.1 Base Material Repair, Epoxy Method.

Scrapes and Breaks Repaired
Photo 4: High strength epoxy mixed with a color agent to repair the damaged area.
The steps listed provide basic instructions for any type of minor board laminate repair. I hesitate to mention the hated subject of dental work, but what a dentist does to restore a tooth is a great (though painful) analogy for this type of work.

Like a tooth with a cavity, the damaged area has residual material that must be removed in order to stabilize the future repair. To remove weakened material we typically use a precision micro-drill. We carefully grind out the residual damage so as not to unnecessarily damage the base material.

See Photo 3. The result of this grinding should be a clean surface, tailor-made for attaching an epoxy repair. This is also when the patient finally relaxes in the chair, relieved of the nagging fear that the dental witch doctor is not going to drive a ball mill into the roof of his mouth.

Scrapes and Breaks Repaired
Photo 5: Finished base board repair.
Once the area is prepared and cleaned, epoxy is added - just like the filling material for a tooth. If needed a color agent can be added to the epoxy for that perfect cosmetic match.

Lastly the cured epoxy is sanded or filed to match the original edge profile. See Photo 5.

Base board damage is never a good thing, but if it happens, it doesn't necessarily mean all is lost. There are reliable, approved procedures you can follow to put you valuable circuit boards board back in play.

Micro-Drill System
High-Strength Epoxy
Color Agents
3.0 Base Board Repair Procedures
Several members of the Circuit Technology Center team contributed to this feature story.
Questions / Comments?
Call 978-374-5000 or submit your questions, comments and requests using the form below.

Your Name

Your E-mail

Your Phone

Your Company

Your Country

Send us a file

Maximum file size 4 megabytes.


Customer Comments
"We're operating on a tight production schedule, with no time to waste. Circuit Technology Center has consistently delivered our boards back to us on time, and sometimes even ahead of schedule. This has helped us stick to deadlines. Thanks to their fast turnaround."
S.L. Fremont, CA USA
11 Rules for Circuit Board Mods
11 Rules for Circuit Board Mods
Some of the odd twists occasionally needed to modify assembled circuit boards can be surprising. Discover the 11 rules your techs should know.
Learn more ...
Do Your Repair Techs Deserve One?
Do Your Repair Techs Deserve One?
The Micro-Drill is the ideal tool for precision drilling, grinding and cutting on circuit boards. Use it to remove coatings, cuts circuits, drills holes, and much more.
Learn more ...
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 ...
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 ...
About Us | Base Board Repair | BGA Reballing | BGA Rework | Coating/Marking | Circuit Repair | Component Salvage | Conflict Minerals | Contact Us | Copyright/Disclaimer | Directions | ECO/Modification | Feature Articles | Frequent Questions | Gold Contacts | Inspection | Order Tracking | Newsletter | Plated Hole Repair | Prices, Terms, Delivery | Products | Privacy | REACH | RoHS | Services | SMT/BGA Repair | SMT/PTH Rework | Sitemap

Circuit Technology Center, Inc.
22 Parkridge Road
Haverhill, MA 01835 USA
Copyright © Circuit Technology Center, Inc.. All rights reserved.