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Ask the Experts
BGA Solder Ball Collapse
Do lead free solder balls collapse the same amount as tin-lead solder balls?
Responses by:
Edithel Marietti
Senior Manufacturing Engineer, Northrop Grumman
Richard D. Stadem
Advanced Engineer/Scientist, General Dynamics
Ray Prasad
President, Ray Prasad Consultancy Group
Fritz Byle
Process Engineer, Astronautics
Rodney Miller
Capital Equipment Operations Manager, Specialty Coating Systems
Robert Freid
President and Founder, Contract Manufacturing Consultants, Inc.
Rework for OSP Assemblies
Head-In-Pillow Reject Rate
ESD Conductive Floor Tile Worry
Solder Caking to Bottom of PCBs After Wave
What Are Realistic Guidelines for PCB Flexing?
Two Year Component Date Code Mandate
QFN Open Solder Joints
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kyzen
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Nordson-ASYMTEK

Get the Revisiting Underfill Handbook
Today's underfill applications are constantly evolving. As chip populations increase, dispensing applications must deliver smaller amounts of fluid with precision. Read this handbook.
Nordson Electronics Solutions
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Plasma-Etch
Sponsor
Master-Bond

Silver Filled, Heat Curing Epoxy
Master Bond EP4S-80 is a one part, electrically conductive, silver filled adhesive for bonding, sealing and coating with a low curing temperature of 80°C.
Master Bond
What Year Was It?
Woodstock Festival Opens
What Year
The Woodstock Music Festival opens on a patch of farmland in White Lake, a hamlet in the upstate New York town of Bethel.
See the answer below.
Sponsor
ECD

Need a Profiler Plan B?
Tired of having to share a thermal profiler across different soldering operations? Add the affordable V-M.O.L.E. 2 four-channel profiler to the mix for time-saving efficiency.
ECD
Viscom
What Year Was It Answer
Woodstock Festival Opens
Answer: August 15, 1969
August 15, 2025
image
Apple's 'Tabletop Robot' Companion Rumored for 2027 Launch
Apple is reportedly pivoting its AI strategy toward smart home devices, developing a robotic tabletop companion and simpler home hub running a new "Charismatic" OS, with enhanced Siri, targeting releases in 2027 and 2026 respectively.
Engadget
Sponsor
Rehm-Thermal-Systems-GmbH

Reliable drying of UV materials
Rehm Thermal Systems launches the RDS UV dryer to meet faster hardening demands, enabling efficient, eco-friendly UV coating for electronics and various industries.
Rehm Thermal Systems
Hon Hai reports profit rose 27%
Hon Hai posted a 27% profit surge on strong AI server demand, offsetting currency pressures. AI revenue jumped 60%, driving capacity expansion in the US, while EV projects advance with Mitsubishi and upcoming Model B and Model C launches.
Taipei Times
Probe Card Manufacturer 'Sees the Unseen' With X-ray
Probe card manufacturer relies on mobile real-time x-ray inspection to verify the quality of its precisely aligned probes at different stages along the assembly line.
Technical Paper
Moving Past "It Works" — Intelligent Optimization Is the Key to PCB Excellence
Engineers confront growing PCB complexity, moving from trial-and-error to intelligent optimization. Siemens' SHERPA and MO-SHERPA algorithms adaptively explore designs, speeding development & uncovering performance trade-offs to guide smarter, data-driven decisions.
Semiconductor Engineering
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
PC maker Lenovo reports record quarterly revenue despite the 'challenges' of US tariffs
Lenovo posted record first-quarter revenue of US$18.8 billion, up 22%, as AI-driven PCs and servers fueled double-digit growth across all businesses. Diversified manufacturing offset tariff pressures, while R&D spending rose 10% to support its global AI expansion.
South China Morning Post
Technical Papers
A Universal AI-Powered Segmentation Model for PCBA & Semiconductor
RAIG Minimizes Corrosion, Allows Higher Gold on ENEPIG
High Reliability Lead-Free Solder Paste with Rosin and Anti-Crack Resin
Understanding Solder Dross: Causes and Control Strategies
Optimizing BGA Rework: Challenges, Techniques and Quality Control
Maintenance: The Basics of Cleaning Series Part 4
The Economics of Electronic Component Salvage and Reuse
Cutting Without Contact: How Laser Depanelling Redefines PCB Manufacturing
The "Fried Egg" Effect in Soldering
Flux Technology Development for Solder Paste Compatible with Formic Acid Reflow Ovens for Power Devices
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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
Intel stock climbs 7% on report Trump administration is considering stake in chipmaker
Intel shares jumped 7% after reports that the Trump administration may take a government stake to fund U.S. chip factories. CEO Lip-Bu Tan emphasized Intel's commitment to national security amid expansion and past setbacks.
CNBC
Why Transparency Is Overrated in Times of Crisis
Effective crisis transparency means filtering raw data, providing context & maintaining emotional discipline. Leaders should interpret facts, communicate thoughtfully & avoid overwhelming teams, ensuring clarity, confidence & stability without mistaking openness for consensus.
Entrepreneur
Sponsor
Circuit-Technology-Center

Are Your BGA Rework Operators Competent?
Can every operator handle your BGA rework equally well? In real life, in all but just a few situations, the answer is no. Why is this so?
Circuit Technology Center
Trump's Tariff Fallacy, a Self-Inflicted Defeat
The U.S. semiconductor tariff strategy backfires, raising domestic costs, alienating allies, and accelerating China's technological self-reliance. Experts urge shifting from punitive tariffs to long-term investment, workforce development, and strategic global partnerships.
EE Times
Chinese factories cut shifts and workers' pay as US tariffs bite
Chinese factory owners like Mike Chai are cutting wages, shifts, and overtime to stay competitive amid US tariffs and fierce domestic rivalry, worsening underemployment, eroding consumer confidence, and intensifying deflationary pressure across the world's second-largest economy.
Taipei Times
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
China's Trump card: rare earths
China's rare earths dominance, built on refining capacity, patents, and low-cost production, poses enduring U.S. vulnerabilities. Washington now seeks diversified supplies and calibrated tech engagement, hoping interdependence deters Beijing from weaponizing critical materials.
Taipei Times
AI Intelligencer: Art of the chip deal
OpenAI's GPT-5 launch drew backlash from users missing GPT-4o, prompting its return. The rollout highlights model trade-offs, competitive pricing pressures, booming AI demand, and rising concerns over self-affirming chatbots fueling AI-related psychosis.
Reuters
Sponsor
DL-Technology

EZ-FLO High Precision Dispense Tips
Each needle is machined from solid stainless steel as opposed to rolled tubing. The resulting smoother internal profile enhances material flow and consistency. Learn more.
DL Technology
Power Grid Congestion Is a Problem. Here's a Solution
Heimdall Power's drone-mounted sensors, called Neurons, clamp onto transmission lines to deliver real-time data that enables dynamic line rating. This technology boosts grid capacity, cuts costs & helps operators maximize existing infrastructure while awaiting transmission upgrades.
IEEE Spectrum
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 PCBs. The investigation focuses on the evolution of the interfacial fracture toughness at the potting material-PCB interface.
Circuit Insight - Analysis Lab
Experimental AI smart glasses can read lips to improve hearing aids
UK researchers developed AI-powered smart glasses that read lips to improve hearing aids and cut costs. Trained to filter background noise, the glasses focus on single speakers, enhancing conversations in noisy environments for hearing-impaired & normal-hearing users.
TechSpot
Sponsor
Plasmatreat-GmbH

Plasma as a Key Technology
Plasma technology improves electronics manufacturing, reduces oxide layers, prevents delamination & enables environmentally friendly products by using Openair-Plasma ® & PlasmaPlus®.
Plasmatreat GmbH
Head-In-Pillow Reject Rate
We have rejects that look like head-in-pillow. We see rejects in 2 or 3 per 15,000 PCBs. Should we tinker with the reflow profile, or would you consider this reject rate acceptable?
Circuit Insight - Ask the Experts
How Does Glass Let Light Through? The Science Explained
Glass, an amorphous solid made by melting quartz sand and cooling it rapidly, lets visible light pass through due to its atomic structure. Centuries of innovation improved durability, transparency, and potential for self-cleaning, shaping modern windows.
BGR
Memory Safety Will Be Key to Tackle Fundamental Cyber Security
The U.K.'s Digital Security by Design initiative showcased CHERI, a memory-safe hardware technology, in London. Experts praised its cybersecurity potential but noted adoption challenges. With 160+ companies involved, standardizing memory safety remains a key priority.
EE Times
Today's Sponsor
Uyemura
Sponsor
Uyemura

RAIG Minimizes Corrosion, Allows Higher Gold on ENEPIG
Paper describes a mixed reaction RAIG electrolyte that minimizes galvanic corrosion and allows higher ENEPIG gold thicknesses, enabling robust designs and world-class quality on target with minimal variation.
Uyemura
Test Your Knowledge
What year was the first US satellite launched into space?
See answer below.
Industry Press
Cliff Electronics Enhances North American Presence With DigiKey Partnership
Cliff Electronics
ViTrox Americas Promotes Edward Pechin to Technical Support Manager
ViTrox Americas Inc.
AOI test programs optimized faster thanks to broader database
GÖPEL electronic
Shenmao Technology and Profound Material to Present at SEMICON Taiwan
Shenmao Technology
Inovaxe LS350 Smart Rack, Digital Inspection Solutions at SMTA Long Island
Inovaxe
MORE INDUSTRY PRESS
SEIKA-America
Sponsor
Glenbrook-Technologies

Probe Card Manufacturer 'Sees the Unseen' With X-ray
Probe card manufacturer relies on mobile real-time x-ray inspection to verify the quality of its aligned probes at different stages along the assembly line.
Glenbrook Technologies
Quote of the Day
"Genius is born--not paid."
Oscar Wilde
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"Ask the Experts" Program by Circuitnet
Do you have a question or process issue in PCB assembly? The Circuitnet "Ask the Expert's" program has over 100 panel members waiting to answer your question. Submit question now.
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AI-Technology-Inc
Cartoon of the Day
Cartoon
"Suspending your keyboard from the ceiling forces you to sit up straight, thus reducing fatigue."
Copyright © Randy Glasbergen
Sponsor
Manncorp

Prototyping to High-Speed Production
Pick and place machines for every throughput—from entry-level prototyping to high-speed systems placing 22,000 CPH. Scalable for any budget, space, or production plan.
Manncorp Inc.
Circuit-Technology-Center
Test Your Knowledge Answer
What year was the first US satellite launched into space?
Answer: Explorer 1 was launched on January 31, 1958.