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December 1, 2022

Can Silver Cause Solder Embrittlement?

A few of our components have leads with a silver finish. Will silver cause solder embrittlement? Is removal of silver needed or can it be soldered using 63/37 solder? Phil Zarrow and Jim Hall, The Assembly Brothers, address this question and share their own experiences.
Board Talk

Qualitative Model Describing Hot Tear Above VIPPO and Other Design Elements
The mechanism for the formation of Hot Tears is discussed and applied to other design elements that can be found on Printed Circuit Board Assemblies.
Production Floor

Technical Papers

■	Master Advanced Packaging Inspection
■	Keys to Component Lead Tinning Success
■	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

Profiling for Double Sided BGA
We are about to produce double sided BGA boards - BGA components on both sides. What advice would you give for profiling? What advice would you give for reworking?
Ask the Experts

Neuromorphic Chip Runs Computations Directly in Memory
NeuRRAM neuromorphic chip brings AI closer to running on edge devices, performing tasks without relying on a network connection to a central server.
Technology Briefing

The Sir Reliability of Fine Pitch QFN Components Under Harsh Condition
A variety of dummy QFNs are assembled on PCBs whose surface finish is OSP by reflow in air, they are tested under 5V bias voltage and 85, 85%RH condition.
Analysis Lab

Sustained High-Temperature Vibration Reliability of Thermally Aged Lead-Free Assemblies in Automotive Environments
In this paper, the reliability of lead-free SAC solder alloys at high temperature and vibration for pristine and thermally aged assemblies is analyzed.
Materials Tech

High Thermal, High Temperature Interconnects for Ultra High Power LEDs
For high performance applications, ultra-high power offers cost reduction through fewer LEDs, smaller PCBs, smaller heat sinks and lighter load bearing.
Production Floor

Solder Balling Prediction Formula
We have experienced mid chip solder balling on some passives. Is there a mathematical calculation that can be used to predict solder balling for a give ...
Ask the Experts

Fabriciton of NiCo Alloy and Rh Coating Using Electroplating Method
The properties of NiCo deposits were analyzed using field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD).
Analysis Lab

How to Reduce Voiding on QFN Components
I'm concerned about voiding in the central ground planes of my QFN components. What can I do and how concerned should I be?
Board Talk

Polyphenylene Ether Macromonomer - Cyanate Ester Laminates
The focus of this paper is on the use of PPE macromonomers to enhance the performance of cyanate esters laminates.
Materials Tech

Supplier Spotlight

ACL Staticide Inc
For more than 50 years, ACL, Inc. has been a ...

Taiwan Union Technology Corporation
TUC works with its customers and focuses on innovation, research ...

MacDermid Alpha Electronics Solutions
Through the innovation of specialty chemicals and materials under our ...

OK International
OK International has been a leading manufacturer of tools for ...

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Mastering Innovation's Toughest Trade-Offs
Innovation in dynamic environments is rife with critical tensions. When left unaddressed or mishandled, these tensions sink teams and organizations.
Technology Briefing

Use of High Purity Water to Eliminate Contamination And Achieve Cleanliness
This paper discusses how high purity DI water can be produced at lower costs using a DI recycling approach in PCB production.
Production Floor

Protocol Development for Testing Solder Reliability
This paper updates progress in the development of methods for investigating solder joint reliability in a combined environment of vibration and thermal cycle testing.
Analysis Lab

Problems With Viscosity and the Moon
At an English shampoo factory near the sea, they were having problems with the shampoo viscosity. What was the cause?
Mysteries of Science

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