Electronics Manufacturing Technical Articles
Papers and articles related to SMT, PCB & EMS industry.
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1433 SMT / PCB Assembly Related Technical Articles
Cleaning No-Clean Fluxes Prior to Conformal Coating
Mar 09, 2020 | ACI Technologies, Inc.
A customer called the Helpline seeking advice for cleaning no-clean fluxes prior to applying a conformal coating. The customer's assemblies were manufactured with a no-clean rosin based solder paste (ROL0) and were cleaned with an isopropyl alcohol (IPA) wash. After cleaning, a white residue was sometimes found in areas with high paste concentrations and was interfering with the adhesion of the conformal coating (Figure 1). For conformal coatings to adhere properly, the printed circuit board (PCB) surface must be clean of fluxes and other residues. In addition, ionic contamination left by flux residues can lead to corrosion and dendrite growth, two common causes of electronic opens and shorts. Other residues can lead to unwanted impedance and physical interference with moving parts....
Publisher: ACI Technologies, Inc. 
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Offers training software and videos. Also, on-site training that qualify for CEUs to maintenance, engineering, and management professionals.
Las Vegas, Nevada, USA
Consultant / Service Provider, Media / Publisher / Online Resource, Training Provider
Offers training software and videos. Also, on-site training that qualify for CEUs to maintenance, engineering, and management professionals.
Las Vegas, Nevada, USA
Consultant / Service Provider, Media / Publisher / Online Resource, Training Provider
SLAS Technology is a peer-reviewed scientific journal published by the Society for Laboratory Automation and Screening in partnership with SAGE Publications
Thousand Oaks, California, USA
1 CLICK SMT TECHNOLOGY CO., Limited
Manufacturer of selective soldering machine, soldering robot, reflow oven, wave solder machine, pcb handling machine. Distributing for Turnkey line include SMT line, conformal coating lines, through hole line.
Dongguan City, China
Dispensing EMI Shielding Materials: An Alternative to Sputtering
Feb 26, 2020 | Garrett Wong, Jinu Choi
Shielding electronic systems against electromagnetic interference (EMI) has become a hot topic. Technological advancements toward 5G standards, wireless charging of mobile electronics, in-package antenna integration, and system-inpackage (SiP) adoption are driving the need to apply more effective EMI shielding and isolation to component packages and larger modules. For conformal shielding, EMI shielding materials for exterior package surfaces have mostly been applied with a physical vapor deposition (PVD) process of sputtering, leveraging front-end packaging technologies to back-end packaging applications. However, sputtering technology challenges in scalability and cost along with advancements in dispensable materials are driving considerations for alternative dispensing techniques for EMI shielding....
ASYMTEK Products | Nordson Electronics Solutions
A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.
Carlsbad, California, USA
Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab
IMPACT lab is focused on cutting-edge research in innovative antenna designs, RF circuits, and sensors.
Thuwal, Saudi Arabia
Specializes in automated metering & dispensing solutions, supplier of resin metering systems, global expert in production and process automation, vacuum dispensing production systems, and systems for dispensing of abrasive media.
Kennesaw, Georgia, USA
Specializes in automated metering & dispensing solutions, supplier of resin metering systems, global expert in production and process automation, vacuum dispensing production systems, and systems for dispensing of abrasive media.
Kennesaw, Georgia, USA
Specializes in automated metering & dispensing solutions, supplier of resin metering systems, global expert in production and process automation, vacuum dispensing production systems, and systems for dispensing of abrasive media.
Kennesaw, Georgia, USA
DfR Solutions has world-renowned expertise in applying the science of Reliability Physics to electrical and electronics technologies, and is a leading provider of quality, reliability, and durability (QRD) research and consulting for the electronics industry.
College Park, Maryland, USA
Mechanical Drop Shock Testing
Feb 03, 2020 | ACI Technologies, Inc.
Accurate impact testing is a key component to establishing that a product is not only reliable, but durable in an end-use environment. ACI Technologies tested a high-g circuit board to demonstrate component durability and ruggedization for guided munitions. The Lansmont Model 23 Shock Test System customized with a Dual Mass Shock Amplifier was used for this testing (Figure 1)....
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Key Advances in Void Reduction in the Reflow Process Using Multi-Stage Controlled Vacuum
Jan 28, 2020 | Heller Industries
This paper explores new advances in the reflow soldering process including vacuum technology and warpage mitigation systems. The first topic for discussion will be the implementation of a vacuum process directly in a conventional inline soldering system. The second topic presented is the mitigation of warpage on substrates or wafers....
Publisher: Heller Industries Inc.
Reflow ovens for automated SMT PCB assembly, specializing in lead free processing and nitrogen reflow. The best convection reflow ovens on the market.
Florham Park, New Jersey, USA
A leading company in the fields of engineering, procurement and testing of high reliability components and electronic equipment within the space and other high reliability markets.
41092, Spain
Bendable Electronics and Sensing Technologies (BEST)
Our research revolves around the development of high-performance electronics and sensing systems on large area flexible substrates.
Glasgow, United Kingdom
Atomic Layer Deposition
Jan 13, 2020 | ACI Technologies, Inc.
Is it possible to coat electronic assemblies with a thin, uniform in thickness, pinhole-free, moisture impervious, truly hermetic (by the MIL-STD-883 definition) film of ceramic material that is far more affordable than placing the same electronic assemblies in the currently used glass-to-metal sealed, thick, heavy, metal-and-ceramic-based hermetic enclosures? Since the coating (called a “conformal coating”) would be both hermetic (moisture proof) and hundreds or thousands of times thinner than the currently used enclosures, it would be both less expensive, lighter, and still just as effective in excluding moisture (hermetic) as the current heavy, bulky, expensive electronic enclosures are....
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Polymer Competence Center Leoben GmbH
PCCL is the leading Austrian "Center of Excellence" for cooperative research in the area of polymer engineering and sciences.
Leoben, Austria
Using mini PCB magazine loader to save more space for your SMT assembly line
Jan 06, 2020 | ASCEN technology company
ASCEN technology make the mini PCB magazine loader without magazine rack to save more space for most of production line,PCB mini loader can use as the PCB unloader or loading machine in different station and let the factory maximized to using the space...
Publisher: ASCEN Technology
Manufacturer of automated production systems;PCB magazine loader,PCB separator,PCB cutting machine,PCB unloaders, PCB conveyors,PCB depaneling machines,PCB turn conveyors,PCB conformal coaters,PCB solder paste printer,PCB buffer
Dongguan, Guangdong, China
The leading Test, ATE and Testability consulting and educational firm, offering various test related courses. Maintains the BestTest Directory, a test community knowledge base. Publishes The BestTest eNewsletter.
Los Angeles, California, USA
Consultant / Service Provider, Manufacturer, Training Provider
DfR Solutions has world-renowned expertise in applying the science of Reliability Physics to electrical and electronics technologies, and is a leading provider of quality, reliability, and durability (QRD) research and consulting for the electronics industry.
College Park, Maryland, USA
PCBONLINE is a one-stop advanced PCB manufacturer for medical, aerospace, automotive, defense, communications, industrial, & consumer electronics. Free DFX and BOM checks. No MOQ. PCBA is IPC-A-610 Class 3 compliant.
Shenzhen, China
PCBONLINE is a one-stop advanced PCB manufacturer for medical, aerospace, automotive, defense, communications, industrial, & consumer electronics. Free DFX and BOM checks. No MOQ. PCBA is IPC-A-610 Class 3 compliant.
Shenzhen, China
Beihang University, previously known as Beijing University of Aeronautics and Astronautics is a major public research university located in Beijing, China, emphasizing engineering, technology, and the hard sciences.
Beijing, China
Warsaw University of Technology
WUT is a research intense, doctoral level academic institution focused on undergraduate and graduate programs almost exclusively in engineering and applied sciences.
Warsaw, Poland
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Intel designs and builds the essential technologies that serve as the foundation for the world's computing devices.
Santa Clara, California, USA
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Masking for Conformal Coatings
Dec 05, 2019 | ACI Technologies
Conformal coatings are regularly employed to protect the surface of a soldered printed circuit board assembly from moisture, chemicals in the PCBA's service environment, and foreign objects or debris. Conformal coatings are nonconductive and therefore cannot be placed on any location where electrical contact will be required, such as connector pins, test points, and sockets. Conformal coatings are also not permitted on any mechanical interface location, such as mounting holes or brackets, to assure the proper fit between items in the final assembly. In order to apply conformal coatings to an assembly and comply with the restrictions on keep-out areas, masking is employed to protect those surfaces. ...
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Ericsson AB manufactures and markets radio and television communication equipment. The company was formerly known as Ericsson Radio Systems AB. Ericsson AB (Sweden) operates as a subsidiary of Ericsson.
Stockholm, Sweden
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
5G Americas advocates for and facilitates the advancement of 5G and the transformation of LTE networks throughout the Americas.
Bellevue, Washington, USA
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Fiber Optic Cabling
Nov 13, 2019 | ACI Technologies, Inc.
Fiber optic harnesses appear simple, but they have been designed to maintain all of the critical areas of aligning two fibers and minimize the losses associated with a break in the transmission path. In order to understand how the connectors overcome alignment issues, we must first understand the issues. Fiber optic communications networks use specific wavelengths of light (or colors) to transmit information through a clear fiber at high speed. They use the property of internal reflection along the fiber’s axis to contain the light and keep the optical power high enough to be detected at the receiving end. ...
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Power Electronic Systems Laboratory (PES)
The research projects at the PES cover a wide range of application areas and all basic forms of power electronic energy conversion
Zurich, Switzerland
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Radial Electronics develops magnetic components and subsystems for data communication, power conversion, and RF applications.
El Dorado Hills, California, USA
Symor Instrument Equipment Co.,Ltd
Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.
Hefei, China
Global supplier of advanced thermal processing equipment and processes to the electronics assembly market.
North Billerica, Massachusetts, USA
Optima Technology Associates, Inc.
Printed Circuit Board constitutes an essential part of any electronic device and Optimatech.net offers every step of your electronic assembly needs looking forward to work with you.call:717 932 5877
PA, Pennsylvania, USA
Investigation of PCB Failure after SMT Manufacturing Process
Oct 21, 2019 | ACI Technologies, Inc.
An ACI Technologies customer inquired regarding printed circuit board(PCB) failures that were becoming increasingly prevalent after the SMT (surface mount technology) manufacturing process. The failures were detected by electrical testing, but were undetermined as to the location and specific devices causing the failures. The failures were suspected to be caused predominately in the BGA (ball grid array) devices located on specific sites on this 16 layer construction. Information that was provided on the nature of the failures (i.e., opens or shorts) included high resistance shorts that were occurring in those specified areas. The surface finish was a eutectic HASL (hot air solder leveling) and the solder paste used was a water soluble Sn/Pb(tin/lead)....
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
Optima Technology Associates, Inc.
Printed Circuit Board constitutes an essential part of any electronic device and Optimatech.net offers every step of your electronic assembly needs looking forward to work with you.call:717 932 5877
PA, Pennsylvania, USA
Specializes in automated metering & dispensing solutions, supplier of resin metering systems, global expert in production and process automation, vacuum dispensing production systems, and systems for dispensing of abrasive media.
Kennesaw, Georgia, USA
Alpha Assembly Solutions is a world leader in the development, manufacturing, and sales of innovative materials used in the assembly electronics, industrial joining and Photo Voltaic market places.
South Plainfield, New Jersey, USA
Advanced Packaging Technology
Oct 16, 2019 | ACI Technologies, Inc.
A major goal of the development of advanced packaging technology is to reduce the size, weight, and power consumption of electronics components using state-of-the-art commercial technologies. One of the novel concepts involves the use of all three spatial dimensions when designing and producing new systems. In the past, electronic structures tended to be two dimensional in nature. Generally speaking, individually packaged integrated circuit (IC) dies were interconnected on printed circuit boards. Techniques such as die and package stacking naturally contribute to a reduction of the spatial footprint of any given electronic system design. ...
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
With numerous facilities in the United States, we are one of the electronics industry's leading manufacturers of lead-free solder products, superior quality stencils, and precision cut parts.
Greeley, Colorado, USA
Power Interfaces
Oct 07, 2019 | ACI Technologies, Inc.
Power interfaces are required when external power sources like solar panels, fuel cells, or batteries are used to generate power for electrical devices. There are two major power interfaces commonly used, direct current to direct current (DC/DC) converters and direct current to alternating current (DC/AC) inverters. While both interfaces are designed to convert from variable DC inputs, they output to different power standards and power levels that are used in different applications....
Publisher: ACI Technologies, Inc.
ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.
Philadelphia, Pennsylvania, USA
Consultant / Service Provider, Standards Setting / Certification, Training Provider
