Surgeon grade rework and repair, by the book and guaranteed.®
Newsletter | Contact Us
Phone: 978-374-5000
  
Challenging Connector Rework More Features
Challenging Connector Rework
Image 2. Wires surrounding the connector solder joints.
Challenging Connector Rework
Image 1. Connectors that require removal and replacement.
A major manufacturer was looking to remove and replace five 170 pin through hole connectors on several multi-layer backplane circuit boards. Naturally there was a need to avoid burning the base board surface or damaging to the plated holes. This was a challenging task. See image 1.

Due to the many power and ground planes, the heating process needed to achieve reflow was complex. The challenge was further complicated due to the need to avoid overheating the many jumpers wires adjacent the connector sites.

Challenging Connector Rework
Image 3. Site prepared using heat shield materials.
Normally you might first remove the wires, but that step would have added significantly to the rework process time so the wires needed to remain in place during the reflow process. See image 2.

The first step involved protecting the heat sensitive areas and base board. This was done with a combination of heat shield blankets, heat shield plates and heat shield mask. These components were encased in an additional layer of high temperature tape. See image 3.

With the prep steps completed, the connectors were reliably removed using a solder fountain system. After the connector removal, each plated hole was cleared of the residual solder using a vacuum desoldering system.

Challenging Connector Rework
Image 4. Connector removed ready for hole clearing.
Installation of the replacement connectors was also completed using the solder fountain system. Key to this project was the use of the heat shielding materials used to protect the circuit board surface, and especially the adjacent wires.

You can learn about the heat shield materials at:
http://www.circuitmedic.com/products/201-3160.shtml
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.

Questions/Comments



Customer Comments
"Thanks again for doing a GREAT JOB! Pass my thanks along to all involved."
L.S. Dayton, OH USA
Keep This Plated-Hole Kit Handy
Keep This Plated-Hole 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 Experts?
Are Your BGA Rework Techs Experts?
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 occasionally needed to modify assembled circuit boards can be surprising. Discover the 11 rules your techs should know.
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 | Intranet | 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.