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
  • Inline SMT Stencil Printers
  • Electronics manufacturing training materials - IPC, solder
  • PCB Rework Tools
799 SMT / PCB Technical Articles

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, Consultant, Service Provider, Test Services

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

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

Reliability Study of Low Silver Alloy Solder Pastes

Sep 01, 2016 | Jennifer Nguyen, David Geiger and Murad Kurwa

Sn3.0Ag0.5Cu (SAC305) is currently the most popular near eutectic lead-free alloy used in the manufacturing processes. Over the last several years, the price of silver has dramatically increased driving a desire for lower silver alloy alternatives. As a result, there is a significant increase in the number of alternative low/no silver lead-free solder alloys available in the industry recently. Our previous study showed that many alternative low silver solder paste materials had good printing and wetting performance as compared to SAC305 solder pastes. However, there is lack of information on the reliability of alternative alloy solder joints assembled using alternative low silver alloy solder pastes.

In this paper, we will present the reliability study of lead-free solder joints reflowed using various lead-free alloy solder pastes after thermal cycling test (3000 cycles, 0°C to 100°C). Six different lead-free pastes were investigated. SAC305 solder joints were used as the control. Low and no silver solder pastes and a low temperature SnBiAg solder pastes were also included....

Publisher: Flex (Flextronics International)

Flex (Flextronics International)

Flextronics is a global full-service supplier of a full spectrum of value-added Electronic Manufacturing Services.

Singapore, Singapore

Design, Service Provider

Sustainable Product Design and Supplier Material Disclosure

Aug 25, 2016 | Tedie West, Kerri Doyle

Sustainable product design and the task of bringing new, earth friendly products to market is a top priority for corporate leaders in the manufacturing industry. By not reaching their compliance and sustainability goals, manufacturers risk loss of market share, fines for non-compliance against regulatory directives and possible damage to their brand. Managing material disclosure information from the supply chain is one of their biggest challenges....

Publisher: Siemens PLM Software

Siemens PLM Software

A leading global provider of product lifecycle management (PLM) and manufacturing operations management (MOM) software. Our Smart Innovation Portfolio helps manufacturers optimize their Digital Enterprise and realize innovation.

Plano, Texas, USA

Software Manufacturer

Mechanical stress test for component solder joints and bonding wires

Aug 24, 2016 | MINIMOTOR Benelux

From consumer electronics to systems control, automotive technology to aviation and aerospace – today, electronics are absolutely essential in many sectors. They increasingly replace mechanical components, eliminating wear and tear and thereby extending the service life. What is easily forgotten in this regard is that electronics are also subject to the laws of mechanics. Mechanical test equipment is crucial to test components for the secure hold of welded, soldered or adhesive bonds. A new, mechanically intricate test probe with universal clamping jaws, that can even grasp the individual bonding wires, is in line with the trend toward ever smaller components. Serving as an actuator for these is a micro drive that can be precisely controlled using a miniaturised motion controller to relieve the control unit in the test device....

Publisher: XYZTEC bv

XYZTEC bv

XYZTEC is the market and technology leader in bond testing worldwide. The Condor Sigma is the most advanced bond tester, providing leading customers with fully automated shear, push and pull testing.

Panningen, Netherlands

Adhesives/Dispensing, Inspection, Manufacturer of Test Equipment

Bond Test Measurement Accuracy

Aug 23, 2016 | Bob Sykes

While many things can affect the force measurement accuracy of a bond test, its ultimate limitation is that of the force sensor. With advances in technology, accuracy can be dramatically improved with no cost penalty and no need to select force measurement ranges. How is this accomplished? ...

Publisher: XYZTEC bv

XYZTEC bv

XYZTEC is the market and technology leader in bond testing worldwide. The Condor Sigma is the most advanced bond tester, providing leading customers with fully automated shear, push and pull testing.

Panningen, Netherlands

Adhesives/Dispensing, Inspection, Manufacturer of Test Equipment

Selective Reflow Rework Process

Aug 18, 2016 | Omar García, Enrique Avelar, C. Sanchez, M. Carrillo, O. Mendoza, J. Medina, Zhen (Jane) Feng,Ph.D., Murad Kurwa

The Selective Reflow Rework Process is an approach to improving the high volume rework process, increasing process capabilities and process repeatability by using a standard reflow oven of 12 zones, pick and place machinery, semi-automated printing gear and Solder Paste Inspection (SPI) implementations. This approach was able to reduce the amount of rework equipment by more than half. Our human resource requirements (indirect and direct labor) were cut by more than 50% and our rolled throughput yield increased from 68.9% to 84.14%. The Selective Reflow Rework Process is less reliant upon operators and has become a repeatable, stable rework process....

Publisher: Flex (Flextronics International)

Flex (Flextronics International)

Flextronics is a global full-service supplier of a full spectrum of value-added Electronic Manufacturing Services.

Singapore, Singapore

Design, Service Provider

Innovation ploughing into the automotive industry with the help of PCB’s

Aug 17, 2016 | Technotronix

To stake a claim in upcoming new technologies and increasing improved customer experience, it is now becoming a central point of consideration to bring out the new classy vehicle design, car manufacturing techniques, testing system in the global market. The current vehicle manufacturer’s also aim to maintain equilibrium between deep capital investment and long product cycle to make the car model a success story. With this, the type of printed circuit board to be used in the vehicle is decided with focusing more on the type of material used in the vehicle and the level of electronic manufacturing and design solution needed in the vehicle production. To go into the roots of the automotive industry, it is equally important to get insights into the PCB used in vehicles and the new innovations brought forward by researchers to create a dream vehicle of the series. The below paragraph drives you to the types of PCB used in the automotive sector....

Publisher: Technotronix

Technotronix

TechnoTronix provide PCB Assembly service, PCB Design, PCB Layout, Printed Circuit Board Design Services, PCB Design Solutions, PCB Manufacturing, PCB Assembly and Fabrication.

Anaheim, California, USA

Contract Manufacturer, Manufacturer of Assembled PCBs, Repair/Rework, Test Services, Turnkey

New Approaches to Develop a Scalable 3D IC Assembly Method

Aug 11, 2016 | Charles G. Woychik Ph.D. Sangil Lee, Ph.D., Scott McGrath, Eric Tosaya and Sitaram Arkalgud Ph.D.

The challenge for 3D IC assembly is how to manage warpage and thin wafer handling in order to achieve a high assembly yield and to ensure that the final structure can pass the specified reliability requirements. Our test vehicles have micro-bumped die having pitches ranging from 60um down to 30um. The high density of pads and the large die size, make it extremely challenging to ensure that all of the micro-bump interconnects are attached to a thin Si-interposer. In addition, the low standoff between the die and interposer make it difficult to underfill. A likely approach is to first attach the die to the interposer and then the die/interposer sub-assembly to the substrate. In this scenario, the die/interposer sub-assembly is comparable to a monolithic silicon die that can be flip chip attached to the substrate.

In this paper, we will discuss various assembly options and the challenges posed by each. In this investigation, we will propose the best method to do 2.5D assembly in an OSAT(Outsourced Assembly and Test) facility....

Publisher: Invensas Corporation

Invensas Corporation

Invensas is focused on the development of cutting-edge enabling technologies in advanced semiconductor packaging for advanced mobility and storage products.

San Jose, California, USA

OEM

PCB Molding An Upward Curve Of Innovation In Building Protection Systems

Aug 11, 2016 | Technotronix

Be it a residential building, hospital, shopping mall, hotel, school, educational institution or any kind of a building, the security of the building is a prime facet to get a complete building solution. This also includes protecting the building, its assent and the human life from the airborne toxic industrial chemical, radiological and biological attacks or any accidental release apart from fire, water, earthquake and other security concerns. For these high value security solutions, the upgraded technology for the building safety system is now a top priority, especially in the commercial building sector and residential constructions. To introduce a completely new concept and a unique solution, it is necessary to focus on the dynamic electronic design and manufacturing solution in consultation with the custom PCB experts....

Publisher: Technotronix

Technotronix

TechnoTronix provide PCB Assembly service, PCB Design, PCB Layout, Printed Circuit Board Design Services, PCB Design Solutions, PCB Manufacturing, PCB Assembly and Fabrication.

Anaheim, California, USA

Contract Manufacturer, Manufacturer of Assembled PCBs, Repair/Rework, Test Services, Turnkey

Used PCB Equipment - AdoptSMT

SMT in-printer dispensing