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November 8, 2022

Tips When Moving a Reflow Oven

After moving a reflow oven to a different site, what steps do you need to perform on the machine for the machine to be certified? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss the steps needed for certification and share their own expertise.
Board Talk

Mechanical Shock and Drop Reliability Evaluation of the BGA Solder Joint Stack-Ups
This paper investigates the Mechanical Shock and Drop Reliability of SnAgCu ball Flip Chip BGA solder joints.
Production Floor

Technical Papers

■	X-Ray Supports Quality Assurance, Counterfeit Detection
■	Be Selective in Partnering with a Soldering Equipment Supplier
■	Effects of Long-Term Storage on Mechanical and Electrical Integrity
■	Selective Equipment in Spec?
■	Why the need for 3D SPI?
■	Dealing with the Results of the Pandemic
■	Direct Immersion Gold as a Final Finish
■	Essential Practices for Gold Mitigation of Electronic Components
■	Nearshoring or Contract Manufacturing? Which Fits Your Business Model?
■	Solder Alloy Contribution to Robust Selective Soldering Process

How To Remove Oxidation On SMT Components
What process do you recommend for removing oxidation from SMT components? These components are unsolderable due to the surface finish.
Ask the Experts

Portable Desalination Unit Addresses Drinking Water Shortage
Researchers have developed a portable desalination unit that generates clean drinking water without the need for filters or high-pressure pumps.
Technology Briefing

Microstructure and Reliability of Low AG/Bi Solder Alloys
The goal of this study was to provide a screening experiment for three alloys Bi-containing, Low (or no) Ag as alternatives to SAC305.
Analysis Lab

Signal Transmission Loss Due to Surface Roughness
In this research, parameters of various types of transmission line structures on an evaluation board were measured and analyzed in detail.
Materials Tech

Jetting Conductive Adhesives with Silver Coated Polymer Particles
Tests performed in this study demonstrate that a conductive adhesive using spherical, polymer silver particles can be used for no-contact jet printing.
Production Floor

Baking Old PCBs Prior To Reflow
Our standard procedure for new bare PCBs is to bake at 125C if the date code is greater than six months old. These PCBs are sealed in plastic from the supplier. The packages ...
Ask the Experts

The Invention of CMOS Image Sensors: A Camera in Every Pocket
CMOS image sensors continue to be used in an ever increasing variety of applications. Some of these applications are useful in every day life, some are for fun.
Analysis Lab

Issues With SMT Component Alignment
During automatic optical inspection our chip components are shifting. This is not limited to single components and changes daily.
Board Talk

Advanced Interconnect Process Enables Very High-Density PCB Structures
Liquid Metal Ink technology allows a very dense thin catalytic seed layer that can then be used as a base for a much thicker electrolytic copper layer.
Materials Tech

Supplier Spotlight

Thermo Fisher Scientific
Thermo Fisher Scientific Inc. is the world leader in serving ...

PPI Systems Inc.
As a leading producer of laser material processing solutions since ...

A.T.E. Solutions, Inc.
Our mission at A.T.E. Solutions, Inc. is to provide advanced ...

Aqua Klean Systems
Aqua Klean Systems has been a local leader in electronics ...

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Bifunctional Polymer Allows Strength and Speed in Artificial Muscles
Strength and speed could not be achieved simultaneously because increasing muscle strength slows down the increasing speed reduces the strength, until now.
Technology Briefing

Jetting Solder Paste Opens Up New Possibilities
Today Jet Printing is no longer seen as a futuristic technology but it has proven itself and the technology is still gaining momentum.
Production Floor

Effect of Encapsulation Materials on Tensile Stress
In this paper FEA modeling was performed to observe stress-strain behavior of solder joints during thermal expansion for various potting materials.
Analysis Lab

Recurring Transmitter Failure - Disconnected Transcript
A radio installation on a hilltop suddenly stopped working reliably. What was causing the transmitter to periodically fail?
Mysteries of Science

Cartoon of the Day

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