circuit insight
Void Reduction Method for BTC Using Exposed Via in Pad
The method explored in this paper regards the use of exposed via in pad. A dedicated test vehicle was designed for two types of QFN components.
Technical Paper
Reflow Oven Zone Separation Challenges
Some of the zones or our oven profiler are competing to get to the correct temperature. How do I prevent the oven from having competing zones? Jim Hall and Phil Zarrow, The Assembly Brothers, answer this question.
Board Talk
Sponsor
AI-Technology-Inc

Reflow Solderable TIM1 Thermal Grease
AIT's CGR7016 & CGR7019-LB series are proven reliable for thermal interface usage at extreme temperatures. 100% chip to heat-spreader lid seal after multiple reflow soldering.
AI Technology, Inc.
Design for Manufacture and Test Using Thermal Cycling Under Bia
There are many factors contributing to electrochemical failures on electronic devices including pitch, electrical field, ionic contamination and environmental conditions.
Technical Paper
Low Temperature SnBi Containing Solder Pastes with Lead-Free Solder Balls
A detailed study has been carried out on low temperature lead-free solder paste that utilizes Bi bearing alloys.
Technical Paper
Method for Accurate PCB Impedance Simulation of Any Specific Stack-Ups
The reasons of inaccurate PCB impedance simulation of the traditional simulator and a novel and cost-effective method for accurate PCB impedance simulation are discussed.
Technical Paper
Sponsor
Advanced-Interconnections

Introducing our new Board to Board Connectors
These new Board to Board Connectors feature pitch sizes from 0.50 mm to 1.00 mm with multi-pitch and custom pitch designs available. Designed for long-life applications and robust handling.
Advanced Interconnections Corp
Immersion Gold Processes Used for Both ENIG and ENEPIG
This paper presents a comparative study for three types of immersion golds used for both ENIG and ENEPIG deposits in the same production line.
Technical Paper
How To Clean a Vintage Circuit Board Assembly?
A vintage computer board is contaminated with decomposed anti-static foam. The microprocessor and other ICs have a sticky grime on the leads.
Board Talk
Sponsor
BEST-Inc.

Want High-Reliability BGA Service?
BGA rework and reballing solutions for commercial, military and aerospace perfected over 20-plus years of reliable, repeatable and proven success.
BEST Inc.
i4.0, Are We Really Ready?
This paper evaluates SMT production and inspection machines and attempts to define their potential to act as ‘smart sensors’, the first building blocks towards i4.0.
Technical Paper
Potted Assembly Interfacial Reliability Under Inclined 25000g Mechanical Shock
This study investigates the time and temperature-dependent evolution of interfacial fracture toughness in four distinct potting compounds for printed circuit boards (PCBs). The investigation focuses on the evolution of the interfacial fracture toughness at the potting material-PCB interface.
Technical Paper
The True Business Impact of IIoT Technology
Pitfalls and opportunities in IIoT solution technology, at the device level, the manufacturing execution management system layer, and enterprise business systems layer.
Technical Paper
Sponsor
Summit-Interconnect

Seven Facilities, One Trusted Source
Partner with the industry leader. Summit is trusted and proven, with 7 integrated facilities to load capacity—from fast-turn prototypes to scalable production requirements.
Summit Interconnect
Requirements on a Class 0 EPA - ESD Equipment and Measurements
The requirements “0 volt” can be achieved, when die maximum value will be required. Today we do not have any ESD material, which requires these limits.
Technical Paper
When is it Time to Switch from Manual Assembly to Automation?
We are a new start-up assembling wireless sensors. All assembly is now manual. We are experiencing large reject rates due to hand soldering of components.
Board Talk
Sponsor
Test-Research-Inc.

High Accuracy SMT / SEMI Inspection
Discover TRI's High Accuracy Inspection Solutions for the SMT and SEMI Back-End Electronics Manufacturing.
Test Research, Inc.
How Can We Prevent Our 0201 Nozzles From Clogging?
We have a formula stencil that had the apertures enlarged to maintain volume while overprinting the ends to keep solder away from the 0201 nozzle.
Board Talk
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Viscom-SE
Sponsor
Master-Bond

Low Outgassing, Glob Top Epoxy
Master Bond EP17HTND-CCM is a glob top epoxy that meets NASA low outgassing specifications and forms high strength bonds to a wide variety of similar/dissimilar substrates.
Master Bond
Ormet-TLPS
Sponsor
Smart-Sonic

Safe and Effective Cleaning with 440-R
VOC-free stencil cleaning chemistry! Cleans any solder paste from any fine-pitch stencil when used as part of the Smart Sonic stencil cleaning process. Learn more.
Smart Sonic
Cartoon
"You're getting pretty good at this stress management thing."
Copyright © Randy Glasbergen