circuit insight
Assembly Optimization for Thin Flip-Chip Chip-Scale Packages
In this study, PC board design and solder stencil designs are evaluated for board attach defectivity for core-less FCCSP packages. It is observed that with properly engineered package materials and mechanical configuration, as well as optimization of PC board pad design, a robust board assembly solution exists for thin FCCSP packages.
Technical Paper
Non-Toxic Stabilization for Mixed Reaction Gold
In this paper a novel gold electrolyte with autocatalytic properties is introduced. It is capable of depositing high layer thicknesses and defect-free ENIG deposits.
Technical Paper
Sponsor
Uyemura

Dedicated Tool for Process Development
Advanced plating capability at Uyemura Tech Center: Process Development, UBM, pilot production. ENIG, ENEPIG, EPIG/EPAG, RAIG immersion gold; all substrates. On-site analysis.
Uyemura
Causes of Blowholes
Are old components such as resistors and circuit breakers more likely to cause blowholes during wave soldering compared to newer components?
Board Talk
Fluxless Reflow Technology for Fine-Pitch and SMT-Level Component Attach
The objective to be discussed in this paper is to determine a solution for component attach in a formic acid environment with the appropriate combination of soldering material and equipment.
Technical Paper
Beyond ECM Additional Reasons for Cleaning Circuit Assemblies
The level of importance of a clean circuit assembly has been demoted. How did the cleanliness of circuit assemblies, once required, get shoved aside?
Technical Paper
Sponsor
Air-Vac-Engineering

Precision Control for BGA Rework
Vacuum sensing electronics provide control for gentle, automatic component removal while a non-contact site cleaning tip's height is accurately monitored and maintained.
Air-Vac Engineering
A Near-Eutectic Sn-Bi Low-Temp Alloy with Thermal Fatigue Resistance
This study reports a new near-eutectic Sn-Bi-based low-temperature solder alloy (Bi+) which can reflow between 165°C and 190°C.
Technical Paper
High Speed Transmission Characteristics on RDL Interposer
This paper presents the demonstration of RDL interposers with fine pitch firing and low loss dielectric layers.
Technical Paper
Sponsor
BEST-Inc.

Enhance Your Hands-On Soldering Skills
Learn how IPC certified training workshops for operator and trainer levels can advance skills and knowledge of your personnel for TH and SMT assembly.
BEST Inc.
Removing Warpage from PCBAs
We have populated boards with components on both sides that are warped. Components are varied height. What methods can we use to flatten them? Phil Zarrow and Jim Hall, The Assembly Brothers, discuss their recommendations.
Board Talk
Predicting Mid-Chip Solder Balling
Is there a calculation that can be used to predict solder balling? We would like to design our stencil apertures to ensure no mid-chip solder balls. The Assembly Brothers, Jim Hall and Phil Zarrow, discuss design suggestions to prevent solder balling.
Board Talk
Assembly and Reliability of a Novel High Density Dual Row MaxQFP
The paper focuses on all aspects of SMT assembly of the MaxQFP. The robustness of the assembly in automotive type board-level thermal cycling will be demonstrated.
Technical Paper
Sponsor
Viscom

Affordable Excellence - iS6052 AOI
The latest addition to Viscom's esteemed lineup of AOI systems. This new system offers a compelling option for manufacturers looking to enhance their PCB inspection processes.
Viscom
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.
Technical Paper
Not All Things Are Created Equal - OSP and Cleaning Chemistries
To better understand OSP and de-flux interactions, a study of OSP with four different de-flux cleaning chemistries is discussed.
Technical Paper
Sponsor
kyzen

pH Employment in Electronic Cleaning
The pH of a cleaning agent affects the entire cleaning process and must be considered when determining the appropriate chemistry and process parameters for success. Download now.
KYZEN
Complex Board Design Induced Solder Separation Failure
The study elaborates the parameters with the solder separation failure per board design configuration, and also provides the potential solution to mitigate the failure. An in-depth analysis on the solder joint microstructure utilizing Electron-backscattered diffraction (EBSD) supports the test results leading to the mechanism associated with the solder separation failure.
Technical Paper
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Circuit-Technology-Center
Sponsor
Summit-Interconnect

Your Domestic PCB Solution
Summit helps you avoid long lead times and added costs—protecting your supply chain without compromise, while delivering the speed and quality you count on.
Summit Interconnect
ECD
Sponsor
Nordson-ASYMTEK

Reclaim Your Factory's Future
Space is a precious resource. With SELECT Synchro, reclaim it, and reimagine your factory's workflow for greater efficiency and scalability.
Nordson Electronic Solutions
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