Electronics Assembly Knowledge, Vision & Wisdom
Sep 25, 2018
Keys for Moisture Sensitive Device Control
Keys for Moisture Sensitive Device Control
We attach travelers to every group of MSD components taken out of the moisture barrier bag. Is this enough documents on our MSD program? Phil Zarrow and Jim Hall, The Assembly Brothers, share their insight.
Board Talk
Cleanliness After Coating Removal
I know how to remove coating and clean the rework site, but how do you verify cleanliness of a rework site prior to re-coating?
Ask the Experts
Say Goodbye To Stencils
Conformal Coatings that don't crack under pressure
Important Ways of Approaching Heat Management
PCB Prototyping for Smarties
Why Jobs Go On Hold
Case Studies Demonstrate Value-Added Services to Enable Client Success
Automated Visual Inspection and Correction (Demura) of OLED Displays
Implementing High-Volume, High-Performance Selective Soldering
The Dynamics of Low Stress Epoxy Curing
The Dynamics of Low Stress Epoxy Curing
This study compares uniform variable frequency microwave (VFM) field cure to standard oven curing at temperatures below Tg (transition temperature).
Production Floor
Machine Learning Impacts the 21st Century Workforce
Machine Learning Impacts the 21st Century Workforce
Machine Learning is capable of a plethora of innovations. There is not yet an agreement on the tasks where machine learning systems will excel.
Technology Briefing
EOS Exposure of Components in the Soldering Process
Examines the consequences of electrical overstress caused by electromagnetic interference on power lines and ground in the manufacturing environment.
Analysis Lab
Insulation Resistance of Dielectric Materials
Insulation Resistance of Dielectric Materials
This investigation measures the leakage within internal PCB layers during exposure of various specimens to a controlled ground-based test environment.
Materials Tech
Lean Flow on the SMT Factory Floor
How can a Lean, agile SMT operation be sustained by turning existing engineering programming and planning functions "upside down"?
Production Floor
Ask the Experts
Suggested Limit for PCBA Heat Cycles
What is the limit for heating cycles on one PCB assembly? Our PCBs contain BGAs, leadless components and large fine pitch components.
Ask the Experts
NASA DOD Phase 2: Copper Dissolution Testing
This paper describes copper dissolution measurements of two lead-free solder alloys to better define allowable rework process windows.
Analysis Lab
Questions About Handling Solder Paste
Questions About Handling Solder Paste
We use lead-free solder and store it at a temperature of 4 to 5 degrees Celsius. What is the best practice for prepping this stored paste before use?
Board Talk
Long Term Thermal Reliability of Printed Circuit Board Materials
This paper describes the purpose, methodology, and results to date of thermal endurance testing performed at the company.
Materials Tech
Ultra-low Power Injectable Biosensors
Ultra-low Power Injectable Biosensors
Engineers have developed a miniature, ultra-low power injectable biosensor that could be used for continuous, long-term alcohol monitoring.
Technology Briefing
EMI-Caused EOS Sources in Automated Equipment
This paper analyses sources of EMI-Caused EOS noise, how it affects components and how to mitigate this problem.
Production Floor
Ask the Experts
Confused About IPC-A-610 Class 2 vs. Class 3
We need some clarification about IPC-A-610. The Class used in Aircraft has nothing to do with IPC-A-610. Where did this thinking come from?
Ask the Experts
RCA TV Soldering Mystery
RCA TV Soldering Mystery
Decades ago RCA had a soldering problem. One day nearly half of the assemblies had to be reworked, but nothing seemed amiss at the board shop. What was the cause?
Mysteries of Science
Cartoon
"Let's run some tests before we blame it on global warming."
Copyright © Randy Glasbergen