Circuit Technology Center
Rework. Repair. Reclaim.
Knowledge, tips, and techniques from the leaders in advanced circuit board and component, rework, repair, and reclamation.
September 23, 2025
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This redesign project centered around a 676-ball BGA (Ball Grid Array) component. During evaluation, it was determined that 23 solder balls were not correctly connected. The only feasible corrective action involved re-routing - an extensive redesign effort in any context. Re-routing would have been simplified if the affected pads were located along the perimeter of the BGA footprint; however, most of the problematic pads originated near the package center ...
Feature Story
Ask the Experts
Is there a test to confirm the precise solder alloy used on an assembled PCB? We need to rework components on assembled circuit boards, but we have no reference for the solder alloy.
Ask the Experts
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Circuit Technology Center now operates six cutting-edge Hentec Odyssey 1325 robotic hot solder dip (RHSD) systems. These state-of-the-art machines are purpose-built for precision component-level modifications, offering unmatched performance in tin whisker mitigation, gold removal, and lead reconditioning.

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The potential problem with press-in fasteners is in their mounting. The end with teeth is fitted by force into a hole that is smaller than the circumference of the teeth. That is what provides the grip of the fastener on the substrate. Forced insertion deforms the hole into which the press-in fastener is mounted, which is fine if that is what the hole was designed ...
Feature Story
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The massive amount of measurements and qualitative information provided by CT-Xray systems can now enable more inspections to be easily automated, ultimately reducing the burden on engineers. With access to this impressive technology, tighter processing parameters can be maintained to ultimately ensure higher quality electronic products for a variety of markets. ...
Tech Paper
Cartoon
"I don't want to bring all my emotional baggage on vacation. How much can I fit into a carry-on?"
Copyright © Randy Glasbergen
Trivia
Arrange these electromagnetic waves by length (longest to shortest): X-Rays, Short Wave Radio, Microwaves
See the answer below.
Quote of the Week
"Only two things are certain: the universe and human stupidity; and I'm not certain about the universe."
Albert Einstein