Electronics Assembly Knowledge, Vision & Wisdom
PC Fab, Board Design, Laminates
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These programs cover bare PC board fabrication, circuit board design, laminates and more. 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

Reliability of ENEPIG by Sequential Thermal Cycling and Aging
Reliability of ENEPIG by Sequential Thermal Cycling and Aging
Paper presents the reliability of LGA components assembled with tin-lead solder onto PCBs with an ENEPIG finish and subjected to thermal cycling and aging.
Materials Tech

Evaluation of the Use of ENEPIG in Small Solder Joints
Evaluation of the Use of ENEPIG in Small Solder Joints
In this study, the impact of industry standard Pd thicknesses on thin solder joints is evaluated through shear testing.
Analysis Lab

Micro Trace Resistive Technology
Micro Trace Resistive Technology
Micro Trace Resistor Technology allows thin film resistors to be built within a printed circuit trace that is less than 100 microns wide.
Materials Tech

Electroplating of Cu in TSV
Electroplating of Cu in TSV
The research objective is to estimate metallurgical and mechanical properties of low alpha solder. Cu-filling property to TSV was also investigated.
Production Floor

Nanomaterials Performance Advantages
Nanomaterials Performance Advantages
Low temperature reactivity, reaction speeds, flexibility and fine pitch considerations dictate that nanomaterials be given serious consideration.
Materials Tech

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

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

The Impact of VIA and Pad Design on QFN Assembly
The Impact of VIA and Pad Design on QFN Assembly
This paper discusses the impact of the via size and design on QFN voiding and solder protrusion. Do small vias prevent the solder from flowing onto the other side?
Analysis Lab

Microstructure and Performance of Micro CU Pillars Assemblies
Microstructure and Performance of Micro CU Pillars Assemblies
Correlations between the shear strength and microstructure of Cu pillars were examined for different solder compositions, and for different aging times.
Analysis Lab

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