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Transient Solder Separation of BGA Solder Joint During Second Reflow Cycle

As the demand for higher routing density and transfer speed increases,Via-In-Pad Plated Over (VIPPO)has become more common on high-end telecommunications products. The interactions of VIPPO wit .. weiterlesen
Author(s)
Steven Perng,Weidong Xie
Event
IPC APEX EXPO 2017

The EMS Gateway Model - Local to Global,Seamlessly

Choosing an outsourced manufacturing partner that is perfect for a new product and close to your design team is quite different to choosing a partner that can manufacture that same product in v .. weiterlesen
Author(s)
Brenda Martin
Event
IPC APEX EXPO 2017

A New Line Balancing Method Considering Robot Count and Operational Costs in Electronics Assembly

Automating electronics assembly is complex because many devices are not manufactured on a scale that justifies the cost of setting up robotic systems,which need frequent readjustments as models .. weiterlesen
Author(s)
Ryo Murakami,Sachio Kobayashi,Hiroki Kobayashi,Junji Tomita
Event
IPC APEX EXPO 2017

BTC and SMT Rework Challenges

Rising customer demands in the field of PCB repair are a daily occurrence as the rapid electronic industry follows new trends in a blink of an eye. New strategies and technologies are required .. weiterlesen
Author(s)
Joerg Nolte
Event
IPC APEX EXPO 2017

Hand Printing using Nanocoated and other High End Stencil Materials

There are times when a PCB prototype needs to be built quickly to test out a design. In such cases where it is known early on that there will be multiple iterations or that a “one and done” ass .. weiterlesen
Author(s)
Bob Wettermann
Event
IPC APEX EXPO 2017

Rework of New High Speed Press Fit Connectors

More and more people and things are using electronic devices to communicate. Subsequently,many electronic products,in particular mobile base stations and core network nodes,need to handle enorm .. weiterlesen
Author(s)
Lars Bruno
Event
IPC APEX EXPO 2017

Connecting to Embedded Components Using TLPS (Transient Liquid Phase Sintering) Pastes in Via Layers

The electronics industry trend continues to be to continually increase capability and performance within an existing or smaller footprint. Shoehorning all of the required components onto the ex .. weiterlesen
Author(s)
Catherine Shearer
Event
IPC APEX EXPO 2017

Electronic Packaging and Interconnect Tool Box for Secured Smart Systems Packaging

Security has become a vital part of electronic products as they handle sensitive data in uncontrolled environments and as they face more and more content protection issues. The paper will intro .. weiterlesen
Author(s)
Bernard Candaele
Event
IPC APEX EXPO 2017

Hybrid ALD/CVD as a Low-Cost Alternative Protective Coating to Poly-Para-Xylylene and Traditional Liquid Conformal Coatings

A new hybrid ALD/CVD protective coating is being considered as a low-cost alternative to poly-para-xylylene and traditional liquid conformal coatings. All of the typical conformal coatings prot .. weiterlesen
Author(s)
Dr. Lee Hitchens,Mike Khosla
Event
IPC APEX EXPO 2017

UV Broad Spectrum & LED Curable 100% Solids Very Low Viscosity Conformal Coating

Very low viscosity formulations are often required for very thin conformal coating applications. Solvents are used to reduce viscosity of the formulations and accommodate dispensing needs. Solv .. weiterlesen
Author(s)
Aysegul Kascatan Nebioglu
Event
IPC APEX EXPO 2017

Moisture Diffusion Modeling of a Thin Film Acrylic Resin Based Conformal Coating on PCBA

High reliability process automation devices require serious protection from harsh environments which can be a combination of moisture,corrosive gases and liquids,salt sprays,large temperature v .. weiterlesen
Author(s)
Junaid Shafaat
Event
IPC APEX EXPO 2017

Investigation of Characteristics of Lead-Free Powders for Solder Paste Application

Solder paste has been used in the surface mount technology for many years. However,a complete understanding of the effect of key powder characteristics on the paste properties is still not achi .. weiterlesen
Author(s)
Amir H. Nobari Ph.D.,Sylvain St-Laurent Ph.D.
Event
IPC APEX EXPO 2017

Voiding Performance with Solder Pastes Containing Modified SAC Alloys for Automotive Applications in Bottom Terminated Component Assemblies

Voiding is a key concern for components with thermal planes because interruptions in Z-axis continuity of the solder joint will hinder thermal transfer. When assembling components with solder p .. weiterlesen
Author(s)
Brook Sandy-Smith
Event
IPC APEX EXPO 2017

Dissolution in Service of the Copper Substrate of Solder Joints

It is well known that during service the layer of Cu6Sn5 intermetallic at the interface between the solder and a Cu substrate grows but the usual concern has been that if this layer gets too th .. weiterlesen
Author(s)
Keith Sweatman,Wayne Ng,Tetsuya Akaiwa,Takatoshi Nishimura,Michihiro Sato,Christopher Gourlay,Sergey Belyakov
Event
IPC APEX EXPO 2017

Void Reduction in Bottom Terminated Components Using Vacuum Assisted Reflow

Pockets of gas,or voids,trapped in the solder interface between discrete power management devices and circuit assemblies are,unfortunately,excellent insulators,or barriers to thermal conductivi .. weiterlesen
Author(s)
M. Holtzer,M. Barnes,D. W. Lee,D. Heller,T. Cucu,J. Fudala,J. Renda
Event
IPC APEX EXPO 2017

Reduce Pollution of Process Gasses in an Air Reflow Oven

The introduction of lead-free solders resulted in a selection of different chemistries for solder pastes. The higher melting points of lead-free alloys required thermal heat resistant rosin sys .. weiterlesen
Author(s)
Gerjan Diepstraten
Event
IPC APEX EXPO 2017

Optimizing Thermo-Mechanical Reliability of Components with Flat Gull Wing Leads

IPC J-STD-001Fand IPC-A-610F require a minimum Heel Fillet Height (F) for Flat Gull Wing Leads of solder thickness (G) plus lead thickness (T) for Class 3 products.[1]It is shown in this work t .. weiterlesen
Author(s)
Simon Wolfangel,Udo Welzel,Stefan Scheller,Marc Nicolussi,Dietmar Schlenker,Robert Bosch
Event
IPC APEX EXPO 2016

Effect of Alloy and Flux System on High Reliability Automotive Applications

The July 2006 implementation of ROHS exempted automotive applications from converting to lead free technology. Nine years later,all major OEM and Tier 1 automotive manufacturers have converted .. weiterlesen
Author(s)
Mitch Holtzer,Steve Brown,Marcus Reichenberger
Event
IPC APEX EXPO 2016

High Temperature Reliability of Components for Power Computing with SAC305 and Alternative High Reliability Solders with Isothermal Aging at 25 C,50 C,and 75 C

This experiment considers the reliability of a variety of different electronic components under isothermal aging and subsequent thermal cycling (TC) testing. The components are evaluated on 0.2 .. weiterlesen
Author(s)
Thomas Sanders,Sivasubramanian Thirugnanasambandam,Dr. John Evans,Dr. Michael Bozack,Dr. Wayne Johnson,Dr. Jeff Suhling
Event
IPC APEX EXPO 2016

Digital PCB Production Using Industrial Inkjet Printing

From photo film to digital camera,from letters to emails,from books to e-readers,from vinyl to MP3: the whole world is turning digital. Yet,ironically,the core compound driving the digitization .. weiterlesen
Author(s)
Roel de Mondt,Frank Louwet
Event
IPC APEX EXPO 2016

Utilization of Inkjet Technology for Primary Imaging of Printed Circuit Boards

The rules of the game in PCB production are changing with new disruptive technologies. At the company there has been the implementation of a “primary image inkjet-resist” printer for both inner .. weiterlesen
Author(s)
Alexander Stepinski,Henk Jan Zwiers
Event
IPC APEX EXPO 2016

Evaluation of Stretchable Conductive Ink

With increasing popularity and momentum for wearable and printed electronics,stretchable printed ink has become a hot subject for study and application. Circuitry printed from stretchable ink r .. weiterlesen
Author(s)
Weifeng Liu Ph.D.,Jie Lian Ph.D.,William Uy,Zhen Feng Ph.D.,Anwar Mohammed,Murad Kurwa
Event
IPC APEX EXPO 2016

Best Practices for RoHS Compliance in Support of CE Marking

In 2012,The European Directive on Reduction of Hazardous Substances was recast. The new version of the directive now requires products to be adequately validated as RoHS compliant in order to b .. weiterlesen
Author(s)
Randy Flinders
Event
IPC APEX EXPO 2016

Best Practices for Enterprise Supply Chain Data Collection

One of the biggest challenges a corporate environmental compliance team faces is to collect complete and accurate material and substance data in a timely manner from suppliers. This paper will .. weiterlesen
Author(s)
Tord Dennis,James Cramer
Event
IPC APEX EXPO 2016

Successful Material Compliance Reporting Strategies for the Electronic Industry

Growing material regulations compel electronics manufacturers to rethink product compliance. Can a company state with confidence every substance in the final product has been identified,and fro .. weiterlesen
Author(s)
Chuck LePard
Event
IPC APEX EXPO 2016

Reliability of Ball Grid Arrays Converted from Pb-free to Tin-Lead by Robotic Hot Solder Dip (RHSD). Multiple Reball Trial and Test Results

Pb-free Ball Grid Arrays (BGA) present unacceptable reliability risks for defense and space programs,but what are the options when SnPb devices are no longer available? BGA manufacturers expres .. weiterlesen
Author(s)
Charles Dennehy
Event
IPC APEX EXPO 2016

Advanced Rework Applications in a Shrinking World

As electronic assemblies continue to shrink in size,component population densities are increasing. Design engineers are forced to utilize all available board real estate and continuously push t .. weiterlesen
Author(s)
Al Cabral,Dan Lilie
Event
IPC APEX EXPO 2016

Water Soluble Solder Paste,Wet Behind the Ears or Wave of the Future?

Water soluble lead-free solder paste is widely used in today’s SMT processes,but the industry is slowly moving away from water soluble solder pastes in favor of no-clean solder pastes. This shi .. weiterlesen
Author(s)
Tony Lentz
Event
IPC APEX EXPO 2016

Paste Jetting Within a Solder Paste Inspection Process

In the electronics industry,consumer demand drives a large portion of product innovations. Consumers want greater functionality and power,while maintaining a small footprint. Due to this demand .. weiterlesen
Author(s)
Rafael Padilla,Derek Daily,Joe Perault
Event
IPC APEX EXPO 2016

The Impact of Reduced Solder Alloy Powder Size on Solder Paste Print Performance

From the Apple Watch and body cameras for law enforcement to virtual reality hardware and autonomous transportation,the opportunities for electronics to improve our lives are limited only by ou .. weiterlesen
Author(s)
Timonthy O'Neill,Carlos Tafoya,Gustavo Ramirez
Event
IPC APEX EXPO 2016

Development of a Consistent and Reliable Thermal Conductivity Measurement Method,Adapted to Typical Composite Materials Used in the PCB Industry

Most of today’s printed circuit board base materials are anisotropic and it is not possible to use a simple method to measure thermal conductivity along the different axis,especially when a goo .. weiterlesen
Author(s)
François Lechleiter,Yves Jannot
Event
IPC APEX EXPO 2016

High Throw Electroless Copper - Enabling new Opportunities for IC Substrates and HDI Manufacturing

Two new electroless copper baths have been developed to cope with upcoming miniaturization challenges in the high-end IC substrate segment as well as in the evolving HDI board market. The main .. weiterlesen
Author(s)
Tobias Sponholz,Lars-Eric Pribyl,Frank Brüning,Robin Taylor
Event
IPC APEX EXPO 2016

Material Effects of Laser Energy When Processing Circuit Board Substrates during Depaneling

Using modern laser systems for the depanelization of circuit boards can create some challenges for the production engineer when it is compared to traditional mechanical singulation methods. Und .. weiterlesen
Author(s)
Ahne Oosterhof
Event
IPC APEX EXPO 2016

Nondestructive Inspection of Underfill Layers Stacked up in Ceramics-Organics-Ceramics Packages with Scanning Acoustic Tomography (SAT)

Ceramics packages are being used in the electronics industry to operate the devices in harsh environments. In this paper we report a study on acoustic imaging technology for nondestructively in .. weiterlesen
Author(s)
Justin Zheng,Francoise Sarrazin,Jie Lian Ph.D.,Zhen Feng Ph.D.,Lea Su,Dennis Willie,David Geiger,Masafumi Takada,Natsuki Sugaya,George Tint Ph.D.
Event
IPC APEX EXPO 2016

Defect Features Detected by Acoustic Emission for Flip-Chip CGA/FCBGA/PBGA/FPGBA Packages and Assemblies

C-mode scanning acoustic microscopy (C-SAM) is a non-destructive inspection technique showing the internal features of a specimen by ultrasound. The C-SAM is the preferred method for finding “a .. weiterlesen
Author(s)
Reza Ghaffarian Ph.D.
Event
IPC APEX EXPO 2016

AXI Voiding Detection on High Power Transistor

High Power Transistors contain materials and structure that pose unique challenges to AXI technologies. The work discusses traditional AXI imaging and processing techniques and their limitation .. weiterlesen
Author(s)
Tracy Eliasson,Ricardo Corona Torres
Event
IPC APEX EXPO 2016

Elimination of Wave Soldering Process

Wave soldering of pin through hole devices has been around for a very long time. It is a process that everyone says will go away and each year it is still being used. In the industry,wave solde .. weiterlesen
Author(s)
David Geiger,Murad Kurwa
Event
IPC APEX EXPO 2016

Design Improvements for Selective Soldering Assemblies

Selective soldering,along with pin-in-paste reflow and press fit,is the primary assembly method for through-hole components. The reflow process is limited by component dimensions and heat resis .. weiterlesen
Author(s)
Gerjan Diepstraten
Event
IPC APEX EXPO 2016

How to Use the Right Flux for the Selective Soldering Application

The selective soldering application requires a combination of performance attributes that traditional liquid fluxes designed for wave soldering applications cannot fulfill. First,the flux depos .. weiterlesen
Author(s)
Bruno Tolla Ph.D.,Denis Jean,Xiang Wei Ph.D.
Event
IPC APEX EXPO 2016

Thermo-Electric Cooler Module Reliability Improvements for CT Detector Subsystem

Thermo-electric coolers (TEC's) are becoming increasingly popular in the medical device industry,where design space is limited and high heat transfer capacity is needed. For a Computed Tomograp .. weiterlesen
Author(s)
Mahesh Narayanaswami,Reinaldo Gonzalez
Event
IPC APEX EXPO 2016

A Structured Approach for Failure Analysis and Root Cause Determination for a Complex System Involving Printed Wiring Assemblies

Determining the root cause of a failure in a complex system is a demanding task that requires a structured and disciplined approach. From engaging the appropriate subject-matter experts,to veri .. weiterlesen
Author(s)
Wade Goldman,Alisa Grubbs,Edward Arthur
Event
IPC APEX EXPO 2016

Round Robin of High Frequency Test Methods by IPC-D24C Task Group

Currently there is no industry standard test method for measuring dielectric properties of circuit board materials at frequencies greater than about 10 GHz. Various materials vendors and test l .. weiterlesen
Author(s)
Glenn Oliver,Jonathon Weldon,Chudy Nwachukwu,John Coonrod,John Andresakis,David L. Wynants Sr.
Event
IPC APEX EXPO 2016

High Frequency RF Electrical Performance Effects of Plated through Hole Vias

Plated Though Hole (PTH) vias are common in the PCB industry,however their impact on electrical performance can sometimes be unclear. The confusion can be due to several different issues. Some .. weiterlesen
Author(s)
John Coonrod
Event
IPC APEX EXPO 2016

An Interesting Approach to Yield Improvement for the Solder Paste Printing and Reflow Process

Whilst many companies invest time,effort and cost into up front work to fix snags which would lead to issues with yield during production,this paper shows the efforts of the company who looks t .. weiterlesen
Author(s)
Lauri Märtin,Kristjan Piir,Enics Eesti AS,Keith Bryant
Event
IPC APEX EXPO 2016

Tiny With a Big Impact: True of False? Impact of the Component Complexity on the assembly process. Miniaturized Components (01005,03015...) in the Mix with so-called Standard Components (BGA,LED,Pin-in-Paste)

The electronics markets place widely varying demands on products,thus necessitating a great deal of complexity with regard to board design and connector technology. A nearly inexhaustible multi .. weiterlesen
Author(s)
Helmut Öttl,Hans Bell Ph.D.,Rudi Dussler,Nico Fahrner
Event
IPC APEX EXPO 2016

Board Warpage During Reflow Soldering - Need for Board Support?

In the high temperatures during board assembly reflow soldering,the base material becomes soft and there is a severe risk for permanent warpage. There are many parameters that could affect boar .. weiterlesen
Author(s)
Lars Bruno
Event
IPC APEX EXPO 2016

Board Warpage During Reflow Soldering - Need for Board Support?

In the high temperatures during board assembly reflow soldering,the base material becomes soft and there is a severe risk for permanent warpage. There are many parameters that could affect boar .. weiterlesen
Author(s)
Lars Bruno
Event
IPC APEX EXPO 2016

Combining Six Sigma Tools with Lean Performance Measurement to Sustain Continuous Improvement Activities

Sustaining the results of any continuous improvement effort can be challenging. With Lean improvement,constant monitoring,coaching and tweaking is often required to keep the "old ways" from cre .. weiterlesen
Author(s)
Mark A. Nash
Event
IPC APEX EXPO 2016

Lean Six Sigma Approach to New Product Development

In this rapidly moving electronics market,fast to market with new products is what separates top performing companies from average companies. A survey conducted by Arthur D. Little (ADL) [1] re .. weiterlesen
Author(s)
Rita Mohanty
Event
IPC APEX EXPO 2016

Challenges Associated with Non-Clean Liquid Flux Selection to Meet Industry Standards

The selection of a liquid flux for use in wave soldering operations is extremely critical to both the manufacturing assembly process and the long term reliability of electronic assemblies. As i .. weiterlesen
Author(s)
Ursula Marquez de Tino Ph.D.,Richard Kraszewski,Kirk Van Dreel
Event
IPC APEX EXPO 2016