Electronics Manufacturing Technical Articles

Electronics Manufacturing Technical Articles

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

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1826 SMT / PCB Assembly Related Technical Articles

Coat-and-Print Patterning of Silver Nanowires for Flexible and Transparent Electronics

Feb 19, 2020 | Weiwei Li, Azat Meredov, Atif Shamim

Silver nanowires (Ag NWs) possess excellent optoelectronic properties, which have led to many technology-focused applications of transparent and flexible electronics. Many of these applications require patterning of Ag NWs into desired shapes, for which mask-based and printing-based techniques have been developed and widely used. However, there are still several limitations associated to these techniques. These limitations, such as complicated patterning procedures, limited patterning area, and compromised optical transparency, hamper the efficient fabrication of high-performance Ag NW patterns. Here, we propose a coat-and-print approach for effectively patterning Ag NWs....

Publisher: Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab

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

Research Institute / Laboratory / School

Selective protection for PCBs

Feb 18, 2020 | Scheugenpflug

Glob Top, Dam and Fill & Flit Chip Underfill To protect PCBs from damaging outside influences, they are coated with a thin layer of casting resin or protective finish during the conformal coating process. In addition to sealing the entire circuit board, it is possible to pot only sections or individual components on the substrate. Different methods ranging from "glob top" to "dam and fill" and "flip chip underfill" have been developed for this purpose....

Publisher: Scheugenpflug Inc.

Scheugenpflug Inc.

Producer of bonding, dispensing and potting solutions with outstanding expertise in automation. As part of the Atlas Copco Group, we have a worldwide sales & service network and access to the Group's extensive technology portfolio

Kennesaw, Georgia, USA

Manufacturer

Process Engineering - Why is preparation of adhesive bonding and potting materials necessary?

Feb 14, 2020 | Scheugenpflug

To meet the steady increase in technical requirements for electronic components, potting media properties must be extremely precise. Rheology, viscosity, filler content and curing behavior are only a few of the factors that play a role in their practical use. However, the growing complexity of materials often negatively impacts the ability to process or dispense them. In this case, material preparation and feeding systems specially designed for this purpose are required. These systems optimally prepare the material for the actual application and ensure homogeneous feeding to the dispensing system....

Publisher: Scheugenpflug Inc.

Scheugenpflug Inc.

Producer of bonding, dispensing and potting solutions with outstanding expertise in automation. As part of the Atlas Copco Group, we have a worldwide sales & service network and access to the Group's extensive technology portfolio

Kennesaw, Georgia, USA

Manufacturer

How to achieve optimum results in automated dispensing

Feb 13, 2020 | Scheugenpflug

Efficient bonding, sealing and potting has a major influence on the sustainable function and safety of electronic components. The key to success here lies in the comprehensive view and control of process engineering. Here it pays to seek collaboration with the systems and the material manufacturer during the very early stages of the project. This is because dispensing systems must be selected for compatibility with the workpiece and the adhesive, sealant or potting compound used. And there are also other factors that play an important role in designing the optimum dispensing system:...

Publisher: Scheugenpflug Inc.

Scheugenpflug Inc.

Producer of bonding, dispensing and potting solutions with outstanding expertise in automation. As part of the Atlas Copco Group, we have a worldwide sales & service network and access to the Group's extensive technology portfolio

Kennesaw, Georgia, USA

Manufacturer

Accurately Capturing System-Level Failure of Solder Joints

Feb 05, 2020 | Maxim Serebreni

Consortium Projects - Thermal Cycling Reliability</p> <ul> <li>Consortium projects allow for joint research to investigate the reliability of multiple solder alloys under a variety of environmental stress conditions. </li> <li>Project jointly sponsored by iNEMI and HDP User Group and including CALCE and Universal consortium currently assessing 15 third-generation solder alloys..</li> </ul>...

Publisher: DfR Solutions (acquired by ANSYS Inc)

DfR Solutions (acquired by ANSYS Inc)

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

College Park,

Consultant / Service Provider

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 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.

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

Manufacturer

Analysis of Inspection of DPA Test Requirements Applied To Flip Chip Technologies

Jan 22, 2020 | Gonzalo Fernandez, Ana Collado

Flip chip assembly techniques bring a wide range of benefits:</p> <ul> <li>Reduced parasitic interconnection between the semiconductor die and package.</li> <li>Provides a high final assembly integrity density.</li> <li>Minimize the interconnection length, providing better electrical performances, especially for high speed signals.</li> <li>Reduce the device size and weight,…, etc.</li> </ul> <p>But there is no dedicated inspection requirements nor DPA standard which address all the necessary aspects associated to this construction type or only cover partially the topics to be inspected....

Publisher: ALTER TECHNOLOGY

ALTER TECHNOLOGY

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

Consultant / Service Provider

Ultra-Thin Chips For High-Performance Flexible Electronics

Jan 15, 2020 | Shoubhik Gupta, William Taube Navaraj, Leandro Lorenzelli, Ravinder Dahiya

Flexible electronics has significantly advanced over the last few years, as devices and circuits from nanoscale structures to printed thin films have started to appear. Simultaneously, the demand for high-performance electronics has also increased because flexible and compact integrated circuits are needed to obtain fully flexible electronic systems. It is challenging to obtain flexible and compact integrated circuits as the silicon based CMOS electronics, which is currently the industry standard for high-performance, is planar and the brittle nature of silicon makes bendability difficult. For this reason, the ultra-thin chips from silicon is gaining interest. This review provides an in-depth analysis of various approaches for obtaining ultra-thin chips from rigid silicon wafer. The comprehensive study presented here includes analysis of ultra-thin chips properties such as the electrical, thermal, optical and mechanical properties, stress modelling, and packaging techniques. The underpinning advances in areas such as sensing, computing, data storage, and energy have been discussed along with several emerging applications (e.g., wearable systems, m-Health, smart cities and Internet of Things etc.) they will enable. This paper is targeted to the readers working in the field of integrated circuits on thin and bendable silicon; but it can be of broad interest to everyone working in the field of flexible electronics....

Publisher: Bendable Electronics and Sensing Technologies (BEST)

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

Research Institute / Laboratory / School

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 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

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