Electronics Assembly Knowledge, Vision & Wisdom
Board Talk
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Board Talk is presented by ITM Consulting

Phil Zarrow
Phil Zarrow, ITM Consulting
With over 35 years 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.


Jim Hall
Jim Hall, ITM Consulting
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.

ITM Consulting
* EMS Qualification, Evaluation and Selection
* SMT Process Consulting and Troubleshooting
* SMT Process Development and Set-up
* SMT Process Audits
* Lead-free Process Readiness Audits
* SMT Process Optimization
* On-Site Workshops
Programs are sorted by published date, most recent first.


How Do You Remove Oxidation from PCBs?
How Do You Remove Oxidation from PCBs?
What is the best method for cleaning bare PCBs with small amounts of oxidation? I know that proper storage and handling may help. Jim Hall and Phil Zarrow, The Assembly Brothers, answer this question and share their own experiences.
Board Talk

Consensus for Baking Prior to Rework?
Consensus for Baking Prior to Rework?
What is the consensus for baking out moisture in circuit board assemblies prior to convection rework, localized mini-wave rework, or hand soldering rework?
Board Talk

How Many Fiducials Per Stencil
How Many Fiducials Per Stencil
We have seen as many as 180 fiducials per stencil with a step and repeat. How many fiducials are recommended for a solder paste stencil? Phil Zarrow and Jim Hall, The Assembly Brothers, answer this question and share their own experiences.
Board Talk

What is Causing Dimples in Blind Via Pads?
What is Causing Dimples in Blind Via Pads?
Recently we encountered defects on some bare boards from our supplier. The defect is a small dimple. What might be the cause of this defect?
Board Talk

PCBA Cleaning with Sodium Bicarbonate
PCBA Cleaning with Sodium Bicarbonate
Is there an effect on PCBA long-term reliability when cleaned with a sodium bicarbonate scrub followed by DI water rinse? The Assembly Brothers, Jim Hall and Phil Zarrow, answer this question.
Board Talk

Proper Exhaust Pressure for Reflow Ovens?
Proper Exhaust Pressure for Reflow Ovens?
What is the proper exhaust pressure for a reflow over? Where should we measure the pressure? How should we measure pressure?
Board Talk

Big Problems with HASL Finish
Big Problems with HASL Finish
We are able to lift a SOIC off a PCBA using tweezers and no heat. The pads are bare copper, but the PCB was manufactured using tin lead HASL finish. Jim Hall and Phil Zarrow, the Assembly Brothers discuss this.
Board Talk

Max Interval Between Reflow for OSP Boards
Max Interval Between Reflow for OSP Boards
With OSP coated circuit boards, what is the maximum allowable time interval between reflow of the first and second sides to insure proper wetting.
Board Talk

Shelf Life Before Conformal Coating
Shelf Life Before Conformal Coating
Prior to conformal coating, how long can we keep assemblies in an open condition before they will be impacted by moisture absorption? The Assembly Brothers, Phil Zarrow and Jim Hall, share their insight.
Board Talk

We Bake, But Still Have Delamination, Why?
We Bake, But Still Have Delamination, Why?
When our PCBs are wave soldered and then pass through reflow most had issues with delamination. Where should we look to solve this?
Board Talk

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