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Tuesday, May 30, 2017
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PCB and Test
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Production and Packaging
Test and Measurement
Pulse Generators "Stimulate" Medical Device Industry
By Chris Vaillancourt, Business Unit Manager for Medical Products, Morgan Technical Ceramics
Neuromodulation has spurred a great deal of excitement in recent years for treatment of different medical conditions and diseases. This technology uses electrical signals to stimulate or block different nerve impulses in the body and is adapted from technology used in cardiac rhythm ...
Thinking "Green" Makes Demand for Power Semiconductors Grow
By Barbara Loferer, Multitest
Recently, IHS Research (www.ihs.com) announced a forecast for power semiconductors with an expected compound annual growth rate of 8 percent. This figure is slightly less than in previous reports, but still indicates the potential of this market. The demand for power semiconductors ...
Underfilling Flip-Chip Die Using Continuous-Path Motion Control
By Akita Morita, Business Development Manager, Nordson ASYMTEK
Flip-chip devices have been important components in electronic circuits for some time, with underfill technology helping to minimize thermal stress between flip chips and the substrates on which they are mounted. The process of adding underfill materials to flip chips and other miniature ...
3D X-Ray Inspection Provides Quality Check of Double-sided PCBs
By Andreas Tuerk, Team Manager AXI Division, Goepel electronic GmbH
Today's electronics are more compact, complex and faster than earlier versions of the same products. Smaller products demand reduced power usage along with lower costs. Space saving techniques used to accomplish these goals includes newer component packages with hidden leads under ...
Dog-Bones and Daisy Chain for Test Labs
By Martin Hart, President, TopLine Corporation, Milledgeville, GA
Engineers routinely use dummy IC packages with internal daisy chain circuitry — fondly known as "Dog-Bones" within the PC board design community. Daisy chain provides engineers with a simple and cost-effective testing mechanism to glean valuable data about process failures. Such ...
Highly Accelerated Stress Screenings
By Alan Perkins, Vice President of Sales and Marketing, Qualmark
Considering that electronics giants such as Apple
manage to introduce new and improved products every year, the need for faster and more accurate reliability checking comes into sharp focus. While traditional environmental stress screenings such as "burn-in" still have their place ...
Low Cost Electrical Test for Counterfeit Device Detection
By Tom Saven, VP — Network Marketing and Terry Harvell, Engineering Manager — Diagnosys, Inc.
It's a dilemma faced frequently. When we take our car for repair, our mechanic can choose between factory replacement OEM parts or their lower priced alternative. We are told that third party parts are manufactured to the same rigid standards as the OEM version, but at a fraction of ...
Complex Serialization: An Approach for Today
By Nader Shehad, BPM Microsystems, Houston, TX
Device programming systems are a key resource in the electronics industry for writing customer-supplied data patterns such as Intel HEX, Motorola S-record, POF and other file formats into blank semiconductor devices. Traditionally, a data pattern is loaded into the device programming ...
Measuring Losses in Switch-Mode Power Supplies
By David Maliniak, Technical Marketing Communications Specialist, Teledyne LeCroy, Chestnut Ridge, NY
Switch-mode power supplies are known for efficiencies that can run into the high 90 percent range, a far cry from the 50-60 percent efficiencies one may expect from the older technology of linear power supplies. Power-supply efficiency is a measure of how much energy is wasted between ...
Tracking Down Counterfeit ICs
By Alan Lowne, CEO, Saelig Co., Inc.
Today's most prevalent counterfeit chips reportedly represent $169 billion in potential risk per year for the global electronics world, according to market research firm IHS iSuppli. The most vulnerable chip types include analog ICs, microprocessors, memory ICs, and programmable logic ...
X-Ray Inspection to Identify Counterfeit Parts
By Dr. Bill Cardoso, Creative Electron, Inc., San Marcos, CA
Radiography (x-ray inspection) is a technique that is central to all recent and upcoming counterfeit detection standards, including IDEA 1010B, CCAP 101, AS5553, AS6081, and AS6171. X-ray inspection provides the unique ability to "see" what is inside an electronic component without ...
Combining 2D and 3D in a Single AOI Platform
By Brian D'Amico, Mirtec Corp., Oxford, CT
Advanced miniature packaging has led to ever-increasing PCB density and complexity. As the manufacturing process becomes progressively more complicated, there is the probability for defects on many finished PCB assemblies. For years the Automated Optical Inspection (AOI) industry has ...
A Better Way to Clean Circuit Boards
By Paul McKinney, Simplimatic Automation. Evington, VA
Foreign material, dust, lint, foreign object damage (FOD) — whatever you call it — when it's on your circuit boards, it's never a good thing. For engineering managers tasked with reducing waste and increasing quality, there are many ways to eliminate foreign material in your processes ...
What Is Resolution?
By Igor Sosman and Adam Shaw, ORPRO Vision GmbH
Automated Optical Inspection (AOI) systems rely on something we take too much for granted: the lens system. The lens system provides the image acquisition capabilities that are needed in all AOI systems — in all cameras, whether for AOI or for machine vision, for security applications ...
Dual Technology Automated Optical Inspection
By Giancarlo de la Garza and Andy Bonner, Nordson YESTECH
The single inspection approach does not provide all of the answers that a production engineer needs to keep the production line running at maximum yield. With components ranging from the tiny 01005 up to long SMT or THT connectors, the AOI programmer needs superb image resolution, a ...
Overcoming the limitations of Flying Probe Test
By Luca Corli, Seica, S.p.A.
When flying probers first entered the market in the late 1980s, their utility was largely limited to testing prototypes and circuits that had no good test points. The bed-of-nails in-circuit test was still king and remained that way for many years. But ICT demands a costly fixture ...
Ionic Cleanliness Testing
By Gregory Alexander, CTO, Ascentech, LLC
Cleanliness of PCB assemblies is easily and accurately measured through the use of a Contaminometer, a test machine that complies with IPC-TM-650 2.3.25. The ROSE Test (Resistivity Of Solvents Extracted) is a quick and easy test that takes no more than 15 minutes, on average, to perform ...
Enhanced BGA Inspection with Advanced Technology
By Glen Thomas, Scienscope, Chino, CA
Years of BGA imaging experience have resulted in a complete understanding of the actual BGA placement process. With a solid understanding of the placement process, software engineers have been able to develop image analysis software that is easy to use, while providing the relevant ...
Adding Speed and Quality to Ultra-Clean Silicone Molding
By Jeffrey A. Bourque, Marketing Communications Manager, Nikon Metrology
Located in Chicago's western suburbs, FMI produces molded silicone components for medical applications. Intricate features and key dimensions of tiny silicone prototype and (pre-) production parts are measured optically using a Nikon Metrology iNexiv system. FMI engineers say that investigating ...
Rewriting the Rules of Solder Printing
By the Staff of DEK and Hansatech EMS Ltd.
Based on the UK's south coast, high-profile EMS company Hansatech EMS Limited has been providing manufacturing solutions to electronics companies for over 25 years, during which time it has developed a very particular — and highly successful — approach to serving its marketplace ...
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