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
  • Electronics manufacturing training materials - IPC, solder
  • PCB Rework Tools
807 SMT / PCB Technical Articles

PCB Conformal Coatings Guide - II

Oct 07, 2016 | Sierra Assembly

In the previous post, we discussed the importance of conformal coatings, materials used for coatings, and methods of application. In this post, we shall look at various conformal coating curing methods, and analyze their immediate benefits. ...

Publisher: Sierra Assembly Technology Inc.

Sierra Assembly Technology Inc.

Sierra Assembly Technology Inc. is a leading PCB assembly, PCB design, PCB prototyping, quick turn assembly, box build assembly, cable/ wire harness providing company based in Fontana, CA.

Fontana, California, USA

Manufacturer of Bare PCBs, Manufacturer of Assembled PCBs, Assembly, Design, Turnkey

PCB Laser Depanelizing Using a UV Laser

Oct 06, 2016 | Bob Wettermann

One of the methods gaining in popularity for singulating rigid/flex, rigid and flex circuit boards post assembly is through the use of laser routing. This method has the advantage of speed, positional accuracy, no tooling wear and lastly no induced mechanical stresses on components during the singulating process....

Publisher: BEST Inc.

BEST Inc.

BEST offers professional rework, repair and prototype builds of PCBs. Our experienced instructors teach professional soldering classes as we are an IPC certified training center.

Rolling Meadows, Illinois, USA

Repair/Rework, Soldering, IPC Standards Certification Center, Service Provider, Training Provider

Room Temperature Fast Flow Reworkable Underfill For LGA

Oct 03, 2016 | Dr. Mary Liu and Dr. Wusheng Yin

With the miniaturization of electronic device, Land Grid Array (LGA) or QFN has been widely used in consumer electronic products. However there is only 20-30 microns gap left between LGA and the substrate, it is very difficult for capillary underfill to flow into the large LGA component at room temperature. Insufficient underfilling will lead to the loss of quality control and the poor reliability issue. In order to resolve these issues, a room temperature fast flow reworkable underfill has been successfully developed with excellent flowability. The underfill can flow into 20 microns gap and complete the flow of 15mm distance for about 30 seconds at room temperature. The curing behavior, storage, thermal cycling performance and reworkability will be discussed in details in this paper....

Publisher: YINCAE Advanced Materials, LLC.

YINCAE Advanced Materials, LLC.

Yincae Advanced Materials, LLC is a developer, manufacturer, and supplier of high performance coatings, adhesives, electronic and optoelectronic materials.

Albany, New York, USA

Manufacturer of Assembly Material, Components/Substrates, Contract Manufacturer

Re-Shoring or Near-Shoring Concepts Should be Strongly Considered when the OEM’s Goal is To Deliver Optimum Balance between Landed Cost and Time to Market

Sep 29, 2016 | Brian Graham

The old tactic of outsourcing to a low cost geography simply to deliver lowest cost direct and indirect labor was never a panacea supply chain solution. In fact, when evaluating solutions for lower volume and higher mix products typically found in the medical, industrial and public safety segments of the OEM market, IL & DL costs are only one subset of the total cost to land the product and service the ultimate customer.

In this paper, there will be examination of what actual cost components should be included in a landed cost analysis, the soft costs that an OEM should consider to deliver outstanding performance in quality, logistics and delivery management of the supply chain solution. A detailed comparison using a 'case study' will be presented to demonstrate a total landed cost option versus one that is focused on IL/DL cost....

Publisher: Kimball Electronics, Inc.

Kimball Electronics, Inc.

Kimball Electronics offers complete product life cycle support for electronic manufacturing assemblies in the Medical, Industrial, Automotive, and Public Safety market segments.

Jasper, Indiana, USA

Contract Manufacturer

IPC-CC-830B Versus the 'Real World'

Sep 22, 2016 | Carolyn Taylor, Phil Kinner

Conformal Coatings are often used to increase the reliability of electronic assemblies operating in harsh or corrosive environments where the product would otherwise fail prematurely. Conformal coatings are often qualified to international standards, intended to enable users to better differentiate between suitable conformal coating chemistries, but always on a flat test coupon, which is not representative of real world use conditions.

In order to better correlate international standards with real world-use conditions, three-dimensional Surface Insulation Resistance (SIR) test boards have been manufactured with dummy components representative of those commonly used on printed circuit assemblies......

Publisher: Electrolube

Electrolube

Global specialists in all aspects of formulated chemical products for the electronics industry.

Leicestershire, United Kingdom

Manufacturer of Assembly Material

Making Ovens Smarter

Sep 19, 2016 | Bjorn Dahle

This white paper seeks to set out the value of a ‘smarter’ approach to the reflow process and how a more intelligent oven can offer real added value and performance to the entire line. It also lays out some of the criteria that is important when selecting smart equipment for a smart process, that conforms to, and is ready for, IoM or Industry 4.0...

Publisher: KIC

KIC

KIC's provides products and services designed to improve a variety of thermal monitoring, profiling and process control applications.

San Diego, California, USA

Software Manufacturer

Long Term Thermal Reliability of Printed Circuit Board Materials

Sep 15, 2016 | Eva McDermott, Ph.D., Bob McGrath, and Christine Harrington

This paper describes the purpose, methodology, and results to date of thermal endurance testing performed at the company. The intent of this thermal aging testing is to establish long term reliability data for printed wiring board (PWB) materials for use in applications that require 20+ years (100,000+ hours) of operational life under different thermal conditions. Underwriters Laboratory (UL) testing only addresses unclad laminate (resin and glass) and not a fabricated PWB that undergoes many processing steps, includes copper and plated through holes, and has a complex mechanical structure. UL testing is based on a 5000 hour expected operation life of the electronic product. Therefore, there is a need to determine the dielectric breakdown / degradation of the composite printed circuit board material and mechanical structure over time and temperature for mission critical applications....

Publisher: Amphenol Printed Circuit Board Technology

Amphenol Printed Circuit Board Technology

AAPC is a world leader in the printed circuit industry, building PCB's, Backplanes, Flex and Rigid Flex products to meet our customers demanding needs.

Nashua, New Hampshire, USA

Manufacturer of Assembled PCBs, Contract Manufacturer, Service Provider

Making the Move from Machine Monitoring to SMART Manufacturing and the Implications on Profiling Systems

Sep 12, 2016 | Mark Stansfield

It is hard to open an Industry newsletter or visit an equipment manufacturer’s website without coming across a mention of the Internet of Things (IoT), Industry 4.0, SMART Manufacturing or ‘big data’. The accessibility to obtain data will only increase and this information and its real-time processing will become one of the most important resources for companies in the future. Production machinery will no longer simply processes the product, but the product will communicate with the machinery to tell it exactly what to do. Industry 4.0 has the vision to connects embedded system technologies and SMART production processes to drastically transform industry and production giving way to the SMART factory development. Future development in oven technology will allow machines to be controlled more intelligently and remotely resulting in the lowest cost model for manufacturing flow....

Publisher: Solderstar

Solderstar

SolderStar is one of the world's leaders in thermal management systems, with over a decade of specializing in the design, development and manufacture of thermal profiling equipment for the lead-free electronics industry.

Rochdale, Lancashire, United Kingdom

Soldering, Test Services, OEM, Software Manufacturer

How Clean is Clean Enough – At What Level Does Each of The Individual Contaminates Cause Leakage and Corrosion Failures in SIR?

Sep 08, 2016 | Terry Munson, Paco Solis, Nick Munson, Steve Ring, Evan Briscoe.

In this investigation a test matrix was completed utilizing 900 electrodes (small circuit board with parallel copper traces on FR-4 with LPI soldermask at 6, 10 and 50 mil spacing): 12 ionic contaminants were applied in five concentrations to three different spaced electrodes with five replicas each (three different bare copper trace spacing / five replications of each with five levels of ionic concentration). The investigation was to assess the electrical response under controlled heat and humidity conditions of the known applied contamination to electrodes, using the IPC SIR (surface insulation resistance) J-STD 001 limits and determine at what level of contamination and spacing the ionic / organic residue has a failing effect on SIR....

Publisher: Foresite Inc.

Foresite Inc.

Foresite is a process consulting house and analytial laboratory dedicated to solving product reliability challenges for electronics manufacturers.

Kokomo, Indiana, USA

Cleaning, Test Services, Consultant, Service Provider

PCB-Conformal-Coatings-Guide-I

Sep 06, 2016 | Sierra Assembly

Printed circuit boards are the base of electronic products in a variety of consumer and industrial applications. New PCBs always perform well. However, their performance will deteriorate with time due to exposure to different environmental conditions like condensation, moisture, contamination of the iconic material on the surface, dust and dirt, mildew, alpha particles, etc. To avoid these problems, PCBs are protected with conformal coatings. Let’s see how this is done, and how they protect PCB components....

Publisher: Sierra Assembly Technology Inc.

Sierra Assembly Technology Inc.

Sierra Assembly Technology Inc. is a leading PCB assembly, PCB design, PCB prototyping, quick turn assembly, box build assembly, cable/ wire harness providing company based in Fontana, CA.

Fontana, California, USA

Manufacturer of Bare PCBs, Manufacturer of Assembled PCBs, Assembly, Design, Turnkey

pcb components vacuum pick up

Fluid Dispense Pump Integration