circuit insight
Copper-Tin Intermetallics: Their Importance, Growth Rate and Nature
This paper will review the formation of copper-tin intermetallics, their growth rate, their effect on thermal cycle life, and drop shock performance.
Technical Paper
Reliability of Isothermally Aged Doped Low Creep Lead-Free Solder Paste
The primary goal of this study was to find a manufacturable solder paste material that would reduce the effects of aging on the solder joints.
Technical Paper
Sponsor
Nordson-ASYMTEK

Trailblazing Process News for Conformal Coating
Say goodbye to clogged nozzles and hello to flawless conformal coating with the ASYMTEK Select Coat SL-1040 Ultrasonic Cleaning Station.
Nordson Electronics Solutions
Insulation Between Overhanging Component Lead and Circuit Conductor
We have a long lead SMT component overhanging the pad. Can solder mask provide insulation between the overhanging component and the circuit conductor?
Board Talk
Stencil Quality & Technology on Solder Paste Printing Performance
We evaluate the impact of stencil quality by comparing the printing performance of 0.35mm pitch and 01005 pads from different stencil suppliers.
Technical Paper
Investigation of Overprinting BGA Pads
The added benefit of using overprinting stencil design strategy is that this should compel further improvement in paste transfer efficiency and uniformity by raising its area ratio. In this study the circle shape overprint apertures were designed for 0.5mm pitch BGA land patterns that measured to an area ratio value of 0.70.
Technical Paper
Sponsor
ECD

Vapor Phase Profiling
Thermal profiling the vapor phase soldering process – especially those with vacuum – is challenging. ECD's M-VP™ sealed barrier can take it. Learn more.
ECD
Crack Propagation Mechanism Study on Bismuth Contained Base Lead Free Solder
The thermal cycling reliability characteristics of solder containing a small amount of Bismuth which is below 4wt% in accordance with the new requirements were investigated.
Technical Paper
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).
Technical Paper
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
Blow Holes After Switching from Lead-Free HASL to ENIG
After switching our PCB finish from lead-free HASL to ENIG blow holes started occurring in the solder joints of the through-hole LEDs. The PCBs and LEDs are from the same suppliers as before, only the finish changed.
Board Talk
Challenges Reliably Soldering Large Ground Pad on LGAs
We are experiencing difficulties reliably soldering large ground pad on land grid array packages using a single large window as a stencil. Should we use all four windows?
Board Talk
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.
Technical Paper
Sponsor
Manncorp

Catch Defects Before They Cost You
3D AOI analyzes true solder height, contour, and volume to expose defects 2D systems miss—reducing false calls, rework, and escapes on ultra-compact components.
Manncorp Inc.
Healthcare Gaps That Only Technology Can Fill
Digital Health is comprised of wearable, implantable technology, web and email, mobile technology, software, social networking, data management and analytics.
Technical Paper
A Case Study of Nickel Dendritic Growth on Printed Circuit Boards
This paper is a case study of nickel dendritic growth under moisture condensation condition on freshly produced circuit boards contaminated with sulfuric acid etchant.
Technical Paper
Sponsor
Ormet-TLPS

AIT ORMET® TLPS for Thermal Conductivity
AIT ORMET® TLPS is proven with stress relief for stable long-term metallic thermal conductivity & low thermal interface resistance for high temp >175°C
Ormet TLPS
Electrochemical Reliability as a Function of Component Standoff
The purpose of this paper is to research the activity of flux residues as a function of the standoff height using insulation resistance.
Technical Paper
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Indium-Corporation
Sponsor
Aim-Solder

The Drawbacks of Internal Recycling Systems for Solder Dross
This paper examines the risks and hidden costs of in-house solder dross recycling, highlighting contamination, compliance, quality, safety, and economic challenges that often outweigh perceived savings.
AIM Solder
Alltemated
Sponsor
Creative-Electron

Inline Automatic X-Ray Inspection: TruView™ Verus
TruView™ Verus is a high-resolution inline AXI system offering advanced 2D, 2.5D, and 3D imaging to detect defects in electronic assemblies with exceptional accuracy and speed.
Creative Electron
Cartoon
"We're implementing new security standards in the office, so don't forget to use the ecret-say ode-cay!"
Copyright © Randy Glasbergen