Electronics Manufacturing Technical Articles

Electronics Manufacturing Technical Articles

Papers and articles related to SMT, PCB & EMS industry.


  • Europlacer SMT Pick & Place Machines
  • Reflow Ovens
  • Precision, fluid dispensing systems for low volume, high mix, R&D, and high volume 24x7 production
  • PCB X-ray inspection
  • Solder Assembly Materials for the Electronics Industry
660 SMT / PCB Technical Articles

Stereo Vision Based Automated Solder Ball Height Detection

Apr 16, 2015 | Jinjin Li, Lina J. Karam; School of Electrical, Computer, & Energy Engineering, Arizona State University, Bonnie L. Bennett, Jeff S. Pettinato;Intel Corporation.

Solder ball height inspection is essential to the detection of potential connectivity issues in semi-conductor units. Current ball height inspection tools such as laser profiling, fringe projection and confocal microscopy are expensive, require complicated setup and are slow, which makes them difficult to use in a real-time manufacturing setting. Therefore, a reliable, in-line ball height measurement method is needed for inspecting units undergoing assembly. (...)

In this paper, an automatic, stereo vision based, in-line ball height inspection method is presented. The proposed method includes an imaging setup together with a computer vision algorithm for reliable, in-line ball height measurement....

Publisher: Intel Corporation

Intel Corporation

Intel designs and builds the essential technologies that serve as the foundation for the world's computing devices.

Santa Clara, California, United States

Manufacturer of Components

Good Schematics Lead to GOOD LAYOUTS

Apr 08, 2015 | Advanced Assembly

An electronic schematic describes the electrical connectivity of a piece of equipment or an entire system. It is made up of symbols that represent individual components and contains electrical and mechanical information and their related connectivity, along with other important data. Information contained within the schematic is packaged into a printed circuit board (PCB) where the mechanical footprint is placed onto the board and connectivity information is graphically displayed. The more accurate the information contained in the schematic is and the clearer it is presented, the more it contributes to a robust printed circuit board....

Publisher: Advanced Assembly, LLC.

Advanced Assembly, LLC.

Advanced Assembly provides quality PCB assembly services for prototypes and low-quantity orders 87% faster than other shops.

Aurora, Colorado, United States

Manufacturer of Assembled PCBs, Assembly, Contract Manufacturer, Service Provider

Fix The Process Not Just The Product

Apr 03, 2015 | Mary Elmallakh, M. Sc. and Paul Groome Digitaltest Inc. Andy Shelton Pulse Communications, Inc.

Understanding your process and how to minimize defects has always been important. Nowadays, its importance is increasing with the complexity of products and the customers demand for higher quality. Quality Management Solutions (QMS) that integrate real-time test and inspection results with engineering and production data, can allow the optimization of the entire manufacturing process. We will describe the cost and time benefits of a QMS system when integrated with engineering data and manufacturing processes. We will use real examples that can be derived from integrating this data. This paper also discusses the aspects of Quality Management Software that enables electronic manufacturers to efficiently deliver products while achieving higher quality, reduce manufacturing costs and cutting repair time. Key words: Quality Management Software, ICT, Repair workstations, First Pass Yield, Pareto analysis, Flying Probe, QMS. ...

Publisher: Digitaltest Inc.

Digitaltest Inc.

Digitaltest is a Leading Test Equipment Supplier of; High Accuracy Flying Probe Systems. High Speed, Non-Multiplexed, In-Circiuit Test Solutions. Functional Test Solutions. CAD/CAE, SPC and CAD Translation Software.

Concord, California, United States

Manufacturer of Assembly Equipment, Test Services, OEM, Software Manufacturer

Guide to Light-Cure Conformal Coating

Apr 02, 2015 | Dymax Corporation

Each year the electronics industry is faced with new product designs that call for smaller printed circuit boards (PCBs) to function in more aggressive and rigorous service environments. As demands change, conformal coating is becoming increasingly adopted to ensure PCB reliability in environments where moisture, condensation, dust, dirt, salts, chemicals, abrasion, thermal shock, mechanical shock, and other factors can all affect circuit performance. This guide reviews the benefits of using light-cure conformal coatings as well as cost justification, typical processing guidelines and best practices, product selection criteria, data, and industry specifications. ...

Publisher: Dymax Corporation

Dymax Corporation

ISO certified global manufacturer and supplier of light-curable adhesives, coatings, oligomers, dispense systems, light-curing equipment, and technical consulting for the industrial, medical, and electronics industries.

Torrington, Connecticut, United States

Manufacturer of Assembly Equipment, Other

How to process C4 (FLIPCHIP)

Mar 29, 2015 | Jason Wu

Application Notes – C4 (FLIPCHIP) Category Description of the category The C4 category is used to describe certain area array devices which have solder bumps (bumps) distributed over the surface of the device. The C4 category is also referred to by the name flipchip. In contrast to the BGA devices, C4 devices do not necessarily have the bumps arranged on a regular grid. The C4 algorithm was originally developed for very fine pitch devices. It has since been extended to find (center) larger components....

Publisher: Shenzhen Southern Machinery Sales and Service Co., Ltd

Shenzhen Southern Machinery Sales and Service Co., Ltd

to provide you with guidance from the AI PCB design(DFM),AI process(NPI) to import equipment installation and auto insertion technology(THT) training, machine trouble shooting/upgrade/overhaul.

Shenzhen, China

Manufacturer of Assembly Equipment, Manufacturer of Assembled PCBs, Design, Equipment Dealer / Broker, Service Provider

The best way to merger 2 SMT lines in one production line

Mar 28, 2015 | Jason Wu

Saving power consumption more then $30K per year, ROI less 6 months. please contact: jasonwu@smthelp.com or w25605@gmail.com if you are interested....

Publisher: Shenzhen Southern Machinery Sales and Service Co., Ltd

Shenzhen Southern Machinery Sales and Service Co., Ltd

to provide you with guidance from the AI PCB design(DFM),AI process(NPI) to import equipment installation and auto insertion technology(THT) training, machine trouble shooting/upgrade/overhaul.

Shenzhen, China

Manufacturer of Assembly Equipment, Manufacturer of Assembled PCBs, Design, Equipment Dealer / Broker, Service Provider

What is Procedure for Measuring the Airflow of the Auto Insertion machine - VCD

Mar 27, 2015 | Jason Wu

This procedure documents the method and apparatus for measuring the average air consumption and the peak air flow for Through Hole -- Axial Insertion Machine....

Publisher: Shenzhen Southern Machinery Sales and Service Co., Ltd

Shenzhen Southern Machinery Sales and Service Co., Ltd

to provide you with guidance from the AI PCB design(DFM),AI process(NPI) to import equipment installation and auto insertion technology(THT) training, machine trouble shooting/upgrade/overhaul.

Shenzhen, China

Manufacturer of Assembly Equipment, Manufacturer of Assembled PCBs, Design, Equipment Dealer / Broker, Service Provider

How to design Through Hole PCB

Mar 27, 2015 | Jason Wu

Equipment Throughput Calculation • Simplistic Throughput Calculation – Deduct a basic rule of thumb percentage from the maximum machine cycle rate. – The accuracy of this method is highly questionable. • Effective Throughput Calculation – Machine de-rate calculated using statistical data based on actual run data and component counts. Also considers PPM, Product Changeover, Board – Load/Unload Time, and Downtime....

Publisher: Shenzhen Southern Machinery Sales and Service Co., Ltd

Shenzhen Southern Machinery Sales and Service Co., Ltd

to provide you with guidance from the AI PCB design(DFM),AI process(NPI) to import equipment installation and auto insertion technology(THT) training, machine trouble shooting/upgrade/overhaul.

Shenzhen, China

Manufacturer of Assembly Equipment, Manufacturer of Assembled PCBs, Design, Equipment Dealer / Broker, Service Provider

Effectiveness of Conformal Coat to Prevent Corrosion of Nickel-palladium-gold-finished Terminals

Mar 26, 2015 | Michael Osterman

Nickel-palladium-gold-finished terminals are susceptible to creep corrosion. Excessive creep corrosion can result in device failure due to insulation resistance loss between adjacent terminals. The mixed flowing gas test has been demonstrated to produce creep corrosion on parts with nickel-palladium-gold finished terminals. Conformal coats are often used to protect printed wiring assemblies from failure due to moisture and corrosion. However, coating may not be sufficient to protect lead terminations from failure.

In this study, acrylic, silicone, urethane, parylene, and atomic layer deposit (ALD) coatings were examined for their effectiveness at preventing corrosion of nickel-palladium-gold-finished terminals....

Publisher: University of Maryland

University of Maryland

Founded in 1856, this research school offers degrees in engineering, education, business & more.

College Park, Maryland, United States

Training / Education

Exceptional Optoelectronic Properties of Hydrogenated Bilayer Silicene

Mar 19, 2015 | Bing Huang, Hui-Xiong Deng, Hoonkyung Lee, Mina Yoon, Bobby G. Sumpter, Feng Liu, Sean C. Smith, Su-Huai Wei

Silicon is arguably the best electronic material, but it is not a good optoelectronic material. By employing first-principles calculations and the cluster-expansion approach, we discover that hydrogenated bilayer silicene (BS) shows promising potential as a new kind of optoelectronic material. Most significantly, hydrogenation converts the intrinsic BS, a strongly indirect semiconductor, into a direct-gap semiconductor with a widely tunable band gap. At low hydrogen concentrations, four ground states of single- and double sided hydrogenated BS are characterized by dipole-allowed direct (or quasidirect) band gaps in the desirable range from 1 to 1.5 eV, suitable for solar applications. At high hydrogen concentrations, three well-ordered double-sided hydrogenated BS structures exhibit direct (or quasidirect) band gaps in the color range of red, green, and blue, affording white light-emitting diodes. Our findings open opportunities to search for new silicon-based light-absorption and light-emitting materials for earth-abundant, high efficiency, optoelectronic applications.

Originally published by the American Physical Society...

Publisher: Oak Ridge National Laboratory

Oak Ridge National Laboratory

Oak Ridge National Laboratory is the largest US Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in

Oak Ridge, Tennessee, United States

Training / Education

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