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September 29, 2022

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, share their suggestions and knowledge.
Board Talk

Hand Printing using Nanocoated and other High End Stencil Materials
This study details the effectiveness of nanocoating materials, high end stainless steel stencil materials, as they relate to the manual SMT printing.
Production Floor

Technical Papers

■	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
■	The Four Roles of Inspection Data in a Smart Factory
■	Toward the Lights-out Factory

Conformal Coating Press Fit Connectors
We are having problems with press-fit connectors. We produce military circuit board assemblies and currently use a fast drying, single component, acrylic conformal ...
Ask the Experts

From Internal Combustion Engines to Hydrogen Fuel-Cell Electric Vehicles
Researchers have developed a precious-metal-free hydrogen fuel cell produces more than 200 milliwatts per square centimeter.
Technology Briefing

Advanced in Packaging for Emerging Technologies
A review about latest advances in packaging and drivers for the development of novel packaging technologies will be given in this paper.
Analysis Lab

Nano Silver Replacement for High Lead Solders
This paper details mechanical and reliability testing of joints made with materials under a range of temperature, pressure and atmosphere.
Materials Tech

Challenges on ENEPIG Finished PCBs
Through extensive investigation, using 8D and Kepner-Tregoe problem solving methods, solutions were discovered in the majority of cases.
Production Floor

Options for Reballing BGA Components
Which of the following do you recommend when reballing BGA components? Reballing with solder paste and solder spheres, or with solder spheres only? Would you change ...
Ask the Experts

Enhance the Shock Performance of Ultra-Large BGA Components
A study on the rubber standoffs and gaskets. The effectiveness of rubber standoffs and rubber gaskets as shock/vibration mitigation have been evaluated.
Analysis Lab

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

ENEPIG - How the Process Characteristics Influence the Layer Performance
This paper will focus on the comparison of pure Pd and PdP deposits and the interaction with the gold electrolyte type in use.
Materials Tech

Supplier Spotlight

Tin Technology and Refining
Tin Technology & Refining, LLC began operations in 2014 in ...

Impact Coating
Impact Coatings delivers world-class PVD technology for environmentally friendly surface ...

Messe München International
Connecting Global Competence: True to this leitmotif, Messe München connects ...

SuperDry Totech
Super Dry is a Moisture Sensitive Device (MSD) handling & ...

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New Technology Allows Devices to Power Anywhere Within Charging Area
Power transfer technology makes it possible to charge devices without wires or plugs. Devices can receive power anywhere within the charging area.
Technology Briefing

Surface Treatment Enabling Low Temperature Soldering to Aluminum
An increasingly popular method to meet the need for lower cost circuitry is the use of aluminum on Polyester (Al-PET) substrates.
Production Floor

Effect of Area Shape and Area Ratio on Solder Paste Printing Performance
The effect of aperture shape and orientation on solder paste printing performance is analyzed using stencil thicknesses, solder paste types and manufacturers.
Analysis Lab

Why Did the Old Reactor Work Best?
The expected color reaction at a dye manufacturing plant hadn't taken place. Why did the batch still work when moved into the old reactor?
Mysteries of Science

Cartoon of the Day

"There is always room for improvement. It's a small room with no windows or distractions. We already moved your things."
Copyright © Randy Glasbergen

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