| Board Talk |
Board Talk is presented by Phil Zarrow and Jim Hall of ITM Consulting.
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Phil Zarrow - With over 50 years of experience in PCB assembly, Phil is one of the leading experts in SMT process failure analysis. He has vast experience in SMT equipment, materials, and processes.
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Jim Hall - A Lean Six-Sigma Master Blackbelt, Jim has a wealth of knowledge in soldering, thermal technology, equipment, and process basics. He is a pioneer in the science of reflow.
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Is No-Clean the Trend for QFN Components?
Is there a move to no-clean for QFN components, or will certain technologies have to continue using a traditional cleaning process? The Assembly Brothers, Phil Zarrow and Jim Hall, address this question and share their own experiences and expertise.
Board Talk
Step Stencil Setup
When shifting from standard solder paste stencils to step stencils, should we change the pressure or attack angle?
Board Talk
Why Do Our Boards Warp During Reflow?
Board flexing has started to occur on one of our circuit board assemblies, yet our process has remained the same. We are using a three-zone reflow oven. Phil Zarrow and Jim Hall, The Assembly Brothers, discuss this scenario and share their recommendations.
Board Talk
Acceptable Rate for Head in Pillow?
We have rejects in 2-3 per 15,000 PCBs that look like Head in Pillow. Should we tinker with the reflow process, or is this reject rate acceptable?
Board Talk
Should Apertures be Home Plate or Inverted Home Plate?
Should stencil the aperture be home plate or inverted home plate? You know the performance difference between the two types. Which one is better? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss this question and share their own insights.
Board Talk
What Rate is World Class for SMT Machines?
What rate is considered world class when it comes to pick performance for SMT placement machines? Can you define pick performance?
Board Talk
Selective Solder Pot Temperatures
What temperature should the solder pot in our selective soldering machine be? Should the temperature be different from our wave system? Jim Hall and Phil Zarrow, also known as The Assembly Brothers, address these questions and share their expertise.
Board Talk
Is Customer Approval Required for Class 3 Repair?
A non-aerospace customer's board was repaired without authorization. Does an IPC document state that customer approval is required for class 3 repairs?
Board Talk
Top Side Reflow Causing Solder Balls
When selective soldering the secondary side, we are producing solder balls on the primary side. What can be done to prevent this from happening? The Assembly Brothers, Phil Zarrow and Jim Hall, address this questions and share their own experiences.
Board Talk
Solder Pallets With Titanium Inserts - Yes/No?
Our pallet manufacturer recommends titanium inserts to allow larger apertures near closely spaced surface mount components. Are they worth it?
Board Talk
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