Electronics Manufacturing Technical Articles
Papers and articles related to SMT, PCB & EMS industry.
- SMTnet
- »
- Technical Library
1228 SMT / PCB Assembly Related Technical Articles
Georgia Institute of Technology
Center for Board Assembly Research CBAR- advanced research on board assembly processes and systems
Atlanta, Georgia, USA
Super powerful expanding desiccant to keep boards & microelectronics moisture free.... Much different than Silica Sand Beads. Also supplier of corrosion prevention treatments that are alternatives to Conformal coatings.
Tampa, Florida, 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
Georgia Institute of Technology
Center for Board Assembly Research CBAR- advanced research on board assembly processes and systems
Atlanta, Georgia, USA
LiloTree is an advanced materials technology company, providing next-generation technology solutions through chemistry and materials innovations. Based in Seattle, Washington, we're an NSF funded company, manufacturer & distrib...
Redmond, Washington, USA
Rogers' high performance laminates and bondplies are engineered to meet stringent customer requirements for 5G wireless communication, wired infrastructure, automotive radar sensors, aerospace, satellites and more.
Chandler, Arizona, USA
ALD of Alumina Ceramic Films for Hermetic Protection
Aug 05, 2020 | ACI Technologies, Inc.
A primary issue in electronics reliability for military applications is the ability to ensure long term operability in harsh, extreme environments. This requires more rigid standards, such as the MIL-STD-883 (Department of Defense Test Method Standard for Microcircuits), which commercial grade electronics typically do not satisfy. A solution commonly employed is to package the critical electronic components in hermetically sealed metal or ceramic enclosures which are costly and labor intensive. Not only are the components more expensive, but the assembly process is more difficult to automate, resulting in a substantial cost premium for military grade electronics....
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
Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider
Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine
Shenzhen, China, China
Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine
Shenzhen, China, China
Averatek Corporation is a high tech company based in Santa Clara, CA that provides custom design services and patterned circuit board materials manufactured through the use of an innovative, proprietary process.
Santa Clara, California, USA
FTG is a leading North American manufacturer of high technology printed circuit boards and precision illuminated display systems.
Toronto, Ontario, Canada
Manufacturer of Assembled PCBs, Contract Manufacturer, Service Provider
Georgia Institute of Technology
Center for Board Assembly Research CBAR- advanced research on board assembly processes and systems
Atlanta, Georgia, USA
Würth Elektronik GmbH & Co. KG
We produce circuit boards from your specifications in various designs.
Niedernhall, Germany
One-Stop Solution for PCB & Prototype Assembly Expanded PCB manufacturing capabilities to support advanced designs with demanding requirements including laser-drilled microvias, cavity boards, heavy copper up to 20 oz., via-in-pad
Aurora, Colorado, USA
A.T.E. (Advanced Test Engineering) Solutions is a leading independent test engineering consulting and educational firm.
El Segundo, California, 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
Worldwide leading manufacturer of EMC (electromagnetic compatibility), EMI (electromagnetic interference), RFI (radio frequency interference), & EMP (electromagnetic pulse) shielding solutions. Our EMC experts will work ...
Dordrecht, Netherlands
Leading materials science company that provides high performance materials, chemistry and technology solutions to the electronics and surface finishing industries worldwide.
Lakeville, Minnesota, USA
Lead-Free Risk Mitigation -- A Case Study
Jul 01, 2020 | ACI Technologies, Inc.
A company approached ACI Technologies (ACI) for assistance with a new product that was about to undergo its initial proof-of-concept prototype build. This product was an item that was being furnished to the Department of Defense for a program designed to increase the technical capabilities of computer equipment issued to the war fighter. The requirements for this item specified the use of tin-lead solder during assembly of production units. One of the main responsibilities for ACI during this project was to assist the client in mitigating the risk introduced using commercial off-the-shelf materials that may be lead-free....
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
Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider
Hong Kong Polytechnic University [The]
With 80 years of proud tradition, PolyU is a world-class research university, ranking among the world's top 100 institutions. Hong Kong Polytechnic University (PolyU) is a home for educating thinkers, communicators, and discovers.
Hung Hom, Kowloon, Hong Kong
Deloitte Touche Tohmatsu Limited, commonly referred to as Deloitte, is a multinational professional services network. Deloitte is one of the "Big Four" accounting organizations and the largest professional services network in the
New York, New York, USA
Georgia Institute of Technology
Center for Board Assembly Research CBAR- advanced research on board assembly processes and systems
Atlanta, Georgia, USA
Lead-Free Control Plan
Jun 02, 2020 | ACI Technologies, Inc.
A commercial systems manufacturer working on a major defense program contacted the Helpline for urgent assistance with an issue of failed parts during reliability testing. They were attempting to incorporate commercial off-the-shelf (COTS) computer-related hardware into a battlefield system and were experiencing reliability issues. It was noted that the parts were labeled by the vendor as "compliant to military (or MIL) standards" but not clearly identified as tin-lead or lead-free. ACI Technologies has supported a number of customers with lead-free issues and we assisted the customer in developing a short term and long-term solution to their problem....
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
Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider
Asia Pacific Circuits Co., Ltd
Asia Pacific Circuits is one of Asia's leading Electronic Manufacturing Services companies, committed to providing high quality PCB and PCBA Contract Electronics Manufacturing Services.
Shenzhen, China
Manufacturer of Assembled PCBs, Assembly, Turnkey, Contract Manufacturer
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
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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
Pad Cratering
May 08, 2020 | ACI Technologies, Inc.
A customer contacted the Helpline to perform analysis on a lead-free assembly which exhibited intermittent functionality. The lead-free assembly exhibiting intermittent functionality when pressure was applied to the ball grid array (BGA) packages. Industrial adaptation of a Restriction of Hazardous Substances (RoHS) compliant solder standard has created a new host of failure modes observed in lead-free assemblies. Pad cratering occurs when fractures propagate along the epoxy resin layer on the underside of the BGA connecting pads. While originating from process, design, and end use conditions, it is the combination of a rigid lead-free solder with inflexible printed circuit board (PCB) laminates that has advanced the prevalence of this condition. Pad cratering is simply the result of mechanical stress exceeding material limitations....
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
Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider
Selective Soldering Equipment and Solutions for Printed Circuit Board Assembly
Liberty Lake, Washington, 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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
University of Electronic Science and Technology of China
UESTC is a national key multidisciplinary university specialized in electronic engineering and information science and technology with a harmonious integration of science, engineering, management and liberal arts.
Chengdu, China
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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
Reliable Selective Soldering For High Volume Assemblies
Apr 14, 2020 | Gerjan Diepstraten
The number of through hole connections on a circuit assembly are decreasing with the drive toward miniaturization. When these assemblies are manufactured in high volumes the most convenient method is selective soldering. Although selective soldering is very well introduced in automotive and industrial applications it can also be a very efficient method to solder high volume consumer products....
Publisher: ITW EAE
ITW EAE is a manufacturer of equipment used in the electronic assembly and semiconductor industries. The group brings together world-class products from Camalot, Despatch, Electrovert, MPM, and Vitronics Soltec.
Lakeville, Minnesota, USA
Stencil Printing 008004/0201 Aperture Components
Apr 14, 2020 | Edward C. Nauss, Michael Butler
This paper will focus on the application requirements of solder printing small aperture designs, concentrating on 008004 (inch) / 0201 (metric) size components, and the results of a design of experiment printing these challenging apertures. As Moore's law continues to be applied to component miniaturization, the next installment of reduced packaging has arrived in the form of the 008004/0201 for resistors and capacitors. Component size roughly the size of a grain of sand presents specific challenges to the solder printing process. To address these challenges, each aspect of the printing process will need be examined. This includes essential machine requirements, including correct squeegee blades, tooling support, and calibrations, to meet the demanding specifications. The correct match and design of materials will be addressed, focusing on the stencil and substrate design along with solder paste and cleaning solvent requirements. A design of experiment will be reviewed that applies the machine and materials discussed, including the printer and Solder Paste Inspection (SPI) setup and the specific machine parameters used. The results of these DOE's will then be closely examined....
Publisher: ITW EAE
ITW EAE is a manufacturer of equipment used in the electronic assembly and semiconductor industries. The group brings together world-class products from Camalot, Despatch, Electrovert, MPM, and Vitronics Soltec.
Lakeville, Minnesota, USA
Selective Solder Fine Pitch Components On High Thermal Mass Assembly
Apr 14, 2020 | Gerjan Diepstraten
The number of through-hole components on printed circuit boards (PCB) has declined significantly over the last decade. Miniaturization in electronics has resulted in less THT (through-hole technology) and leads with a finer pitch. For this reason, the soldering of these components has also changed from wave soldering to Point-to-point selective soldering. Soldering these small, fine-pitch components is a challenge when surface mount components (SMD) are positioned very close to THT components on the PCB layout. This study, done in cooperation with a large automotive EMS customer, defines the process windows for through-hole technology for fine-pitch components. It determines what is feasible to solder and defines layout design parameter that make soldering possible with SMD areas and other components on the assembly....
Publisher: ITW EAE
ITW EAE is a manufacturer of equipment used in the electronic assembly and semiconductor industries. The group brings together world-class products from Camalot, Despatch, Electrovert, MPM, and Vitronics Soltec.
Lakeville, Minnesota, USA
WSM is published by the Board of Regents of Washington State University.
Pullman, Washington, 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
Product Design and Early Manufacturing Involvement
Apr 01, 2020 | ACI Technologies, Inc.
It happens much too often; manufacturing engineers are brought into a NEW product design phase at the very end of a design and are asked to provide input that should have been provided much earlier. One needs to understand how the circuit board design and quality of the manufacturing process not only effects assembly yield and product reliability, but how it could also affect the results of any testing that is done to circuit packs during prototyping. It is important that any circuit pack (including prototypes) that will be used in reliability, performance and functional testing be designed with the proper features and assembled with a manufacturing process that has been developed to produce a high-quality assembly. If not, the results of any testing might not represent the actual characteristics of the design and provide miss-guidance to future changes....
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
Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider
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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
Offers bare sensors for system integration, offline benchtop tools and online scanners for metrology and inspection applications.
Santa Clara, 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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
Mycronic, formerly MYDATA, is the key manufacturer of assembly machine for electronics. Our product portfolio contains Pick&Place machines, Jet-printing machines and component storage towers.
Täby, STOCKHOLM, Sweden
IPC Apex Expo 2020 Remarks
Mar 12, 2020 | Roland Girouard
IPC's APEX EXPO is always exciting & always fun and, most importantly, always beneficial to those who exhibit and attend. From technical conferences to standards committees to new and exciting things on the show floor - APEX 2020 was indeed a success...
Publisher: SMTnet
Helping businesses find each other.
Portland, Maine, USA
Other, Consultant, Marketing Agency, Publication or Online Resource, Service Provider
One of the world's leading suppliers of integrated production systems, chemistry, equipment, know-how and service for electroplating, semiconductor and printed circuit board manufacturing.
Berlin, Germany
Manufacturer of Assembly Material, Manufacturer of Components, Components / Substrates
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
Design, IPC Standards Certification Center, Consultant, Service Provider, 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, Publication or Online Resource, Service Provider, Software Manufacturer, 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, Publication or Online Resource, Service Provider, Software Manufacturer, 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
Manufacturer of Assembly Equipment, Screen Printing, Turnkey, Distributor, Selective Soldering
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....
Publisher: Nordson ASYMTEK
A leader in automated fluid dispensing, jetting and conformal coating. Products range from benchtop dispensers and stand-alone dispensing workstations to fully automated, in-line conveyorized systems.
Carlsbad, California, USA
Manufacturer of Assembly Equipment, Adhesives / Dispensing, Assembly, Component Packaging
