circuit insight
Low Temperature Solder “Reverse Hybrid” Method
This paper will review the implementation of LTS “Reverse Hybrid”, which is the assembly of a ball grid array component with LTS solder balls to the motherboard.
Technical Paper
Machine Vision-based Defect Inspection for Plated Through Hole Components
This study delineates the conceptualization of a machine vision-based defect inspection model, meticulously engineered to confront the intricacies of high-throughput PCB assembly.
Technical Paper
Sponsor
Advanced-Interconnections

Need Improved Solder Joint Visibility?
Solder Peel-A-Way° Removable Terminal Carriers in place and peel the carrier away for complete solder joint visibility on both sides of the PCB. Watch a video to see it in action.
Advanced Interconnections Corp.
Single Device Traceability in Assembly without ECID
The recent evolution of data analytics allows correlation analysis from wafer fab to wafer test to assembly and packaging to product level test and field performance.
Technical Paper
Can High Particle Concentrations Impact PCB Assembly?
At our SMT facility we currently control ambient temperature, relative humidity and particle count. Is particle count a good parameter to control? The Assembly Brothers, Phil Zarrow and Jim Hall, discuss this question.
Board Talk
Trouble With Skewed DPAK Components
We are having trouble with surface mount DPAC components skewing during reflow. We checked our profile and tried a diagonal hatch aperture.
Board Talk
Sponsor
Glenbrook-Technologies

Scoring Big With Glenbrook's Real-Time X-Ray Inspection
Jewel Box 70T helps East/West Manufacturing ensure accurate assembly of complex boards, for a system delivering statistics in seconds. Read more
Glenbrook Technologies
Effect of Bi-Addition on the High Strain Rate Properties of SnAgCu Solders
This paper focuses on the effects of sustained high temperatures on the high strain rate of doped lead-free solders operating between -65°C to 200°C.
Technical Paper
The Effect of Strain Rate on the Ductility of Bismuth-Containing Solders
In this paper the authors report some preliminary results from a wider study of the effects of bismuth on the properties and behaviour of solder alloys.
Technical Paper
Sponsor
Nordson-ASYMTEK

ASYMTEK Select Coat SL-1040
The SL-1040 Conformal Coating System upgrades the SL-940 and added significant system-level advancements to elevate automation, control, precision & preventative maintenance for better yield.
Nordson Electronics Solutions
Reservoir Printing in Deep Cavities
Guidelines for stencil designs and aperture placement in cavities are presented, including stencil design, paste material, experimentation, and results.
Technical Paper
SMT Processing using Printed Anisotropic Conductive Epoxy
There are many options on the market for unpackaged, bare die with advanced capabilities, however these chips are often designed for wire bonding interconnection. This paper discusses three designs successfully transitioned from previously wire-bonded die to bare die direct-to-circuit attachment using standard SMT pick-and-place equipment.
Technical Paper
Minimum Lead to Lead Spacing for Wave Soldered Through-Hole Components
What is the recommended minimum lead-to-lead spacing for through-hole components run through a wave soldering system? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss this question and share their own suggestions.
Board Talk
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
Kinetics of a Layer of Bismuth at the Anode of a Sn-Bi Based Solder Joint
Electrical resistance of low temperature solder during current stressing was shown to have the thickness of continuous layers of Bi accumulated at the anode.
Technical Paper
Analyzing 0402 Capacitor Defects With Stencil Printing Misalignment
This study investigated the cause of tombstoning for 0402 capacitors in surface mount technology. Statistical analysis methods were used to determine if there was any difference.
Technical Paper
Sponsor
BEST-Inc.

Boost Reballing with EZReball Preforms
EZReball reballing preforms provide fast, clean, and accurate reballing of complex BGA packages while eliminating traditional complexities and the need for operator dexterity.
BEST Inc
Temperature Cycling with Bending to Reproduce Typical Product Loads
A new methodology for solder joint reliability prediction taking into account the mechanical load as well as the thermal mismatch load between component, solder & PCB is proposed.
Technical Paper
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Sponsor
DL-Technology

Start Micro Dispensing Today
The DL Micro Valve is specifically designed for dispensing micro volumes of material in precise, repeatable patterns. Learn more about the DL Micro Valve.
DL Technology
Ormet-TLPS
Sponsor
Rehm-Thermal-Systems-GmbH

The perfect protection for your electronics
Rehm's ProtectoXP and ProtectoXC systems offer flexible, high-quality coating solutions that shield electronics from moisture, corrosion, and other environmental damage.
Rehm Thermal Systems
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