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February 2, 2023

Can Solder Mask Be Considered an Insulator?

Is solder mask considered an insulating material and not a defect if proven the solder mask has dielectric withstanding voltage greater than 500 volts? Is solder mask considered a durable insulator over time in harsh environments? The Assembly Brothers, Jim Hall and Phil Zarrow, address these questions.
Board Talk

Automating the Rework Process
This paper describes Automated Optical Rework technology and its advantages for advanced circuit board production.
Production Floor

Technical Papers

■	Investigation & Results on the Phenomenon of "Flying" SMD Components
■	The Transformation of the New Generation of X-ray Machine
■	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

Toe Fillet Requirements on Gull Wing Components
Is a toe fillet required on gull wing components? If it is not a requirement why is that so? We have some gull wing components that have no toe fillet ...
Ask the Experts

Demography AI and the Future of Economic Growth
Our lives are shaped by demographic and techno-economic trends. A demographically driven change intersects history’s techno-economic wave.
Technology Briefing

Understanding PCB Design Variables That Contribute to Warpage
To improve attachment yield rates, an evaluation several PCB design variables that are believed to contribute to warpage during reflow is proposed.
Analysis Lab

Effects of Mixing Solder Sphere Alloys with Bismuth-Based Pastes
In this paper, the effect of mixing solder sphere alloys with Bi-based solder pastes on the component reliability in accelerated thermal cycling is studied.
Materials Tech

Latent Short Circuit Failure in High-rel PCBs
This paper describes inspections performed on base materials, manufacturing processes and final PCBs.
Production Floor

Acceptable Conductor Repair
An operator attempted to repair 3 damaged conductors using buss wire over-coated with epoxy. Do you consider this repair acceptable? If we start the repair process over ...
Ask the Experts

ENIG Nickel Corrosion on Wetting Balance Test Results and Intermetallic Formation
This paper attempts to further clarify the effects of nickel corrosion on solder wetting balance test results and the resultant intermetallic formed.
Analysis Lab

Connector Bowing During Reflow Process
I have a connector that is bowing during lead-free soldering. When the connector is put through an oven on its own no bowing takes place. What is causing this?
Board Talk

Solder Joint Embrittlement Mechanisms, Solutions and Standards
The paper describes four case studies of solder joint embrittlement, three with Sn63Pb37 and one with SnAg3.7 solder alloy.
Materials Tech

Supplier Spotlight

ITM Consulting Inc.
At ITM we prepare our electronics assembly clients for tomorrow’s ...

Coherent, Inc.
Coherent is one of the world’s leading photonics manufacturers and ...

ASSCON Systemtechnik-Elektronik GmbH
The Company ASSCON Systemtechnik-Elektronik GmbH was founded in 1995 as ...

Apex Tool Group
Apex Tool Group was formed in July 2010 as a ...

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Addressing the Raw Material Shortage for Electric Car Batteries
There are not enough raw materials, for batteries if everyone is to have an electric car. Even if there was, charging them would take too long for many applications.
Technology Briefing

Miniaturization of Hearing Aid Electronics Using Embedded Die Packaging
This paper examines the use of second generation embedded die packaging to drive further size reduction in custom hearing instruments.
Production Floor

Fill the Void V - Mitigation of Voiding for Bottom Terminated Components
Voiding in solder joints is a complex issue. This paper focuses on solutions to voiding for commonly used bottom terminated components (BTCs).
Analysis Lab

Was It Acid Rain Itch?
Something in Jean's environment was not agreeing with her and it was causing her skin to itch. Could acid rain be the cause?
Mysteries of Science

Cartoon of the Day

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