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Improving Yields and Quality: Two Case Studies: Graping and the Head-on-Pillow defect

HoP Mitigation is addressed with respect to solder paste,components,inspection,process and the environment. Graping minimization recommendations are given with data driven suggestions. .. read more
Author(s)
Ronald C. Lasky
Event
IPC APEX EXPO 2013

Gravure Printing of ITO Transparent Electrodes for Applications in Printed Electronics

ITO nanoparticles were successfully printed on glass with the AccuPress Gravure System •A wide range of sheet resistivity values was achieved with different engraving resolutions of the gravure .. read more
Author(s)
Dania Alsaid,Margaret Joyce,Erika Rebrosova,Marian Rebros,Massood Atashbar
Event
IPC APEX EXPO 2013

Printed & Flexible Electronics – Surf’s Up

Printed & Flexible Electronics • Development Waves – 1st,2nd,and 3rd • Essentials • Products and Applications • Technology and Infrastructure Development • Printed & Flexible Electronics Pipeli .. read more
Author(s)
Daniel Gamota
Event
IPC APEX EXPO 2013

Mixed Metals Impact on Reliability

With the adoption of RoHS and implementation of Lead Free solders a major concern is how this will impact reliability. Both commercial and military hardware are impacted by this change even tho .. read more
Author(s)
Rick Gunn
Event
IPC APEX EXPO 2013

Testing Intermetallic Fragility on Enig upon Addition of Limitless Cu

As reliability requirements increase,especially for defense and aerospace applications,the need to characterize components used in electronic assembly also increases. OEM and EMS companies look .. read more
Author(s)
Martin K. Anselm,Brian Roggeman
Event
IPC APEX EXPO 2013

Assessment of Reterminated RoHS Components for SnPb Applications

The banning of Pb in electronic component termination finishes has flushed through the supply chain making it impossible in some cases for hi-reliability users to purchase Pb containing interco .. read more
Author(s)
Chris Hunt,Martin Wickham,Ling Zou,Owen Thomas,Bufa Zhang
Event
IPC APEX EXPO 2013

The Coming of The MultiChip Module

MultiChip Module Status •It isn’t a new idea since back in the 1980’s everyone was trying to combine different components into a single package •It started with Hybrids then different forms of .. read more
Author(s)
Dieter Bergman
Event
IPC APEX EXPO 2013

BVA: Molded Cu Wire Contact Solution for Very High Density Package-on- Package (PoP) Applications

Stacking heterogeneous semiconductor die (memory and logic) within the same package outline can be considered for less complex applications but combining the memory and processor functions in a .. read more
Author(s)
Vern Solberg,Ilyas Mohammed
Event
IPC APEX EXPO 2013

Printed Circuit Structures,the Evolution of Printed Circuit Boards

The Printed Circuit Board (PCB) is the backbone of electronics and a large number of consumer devices. The challenge to put more function in a smaller space requires more components utilizing s .. read more
Author(s)
Kenneth H. Church,Harvey Tsang,Ricardo Rodriguez,Paul Defembaugh,Raymond Rumpf
Event
IPC APEX EXPO 2013

Cost effective 3D Glass Microfabrication for Advanced Electronic Packages

Interposer technologies are gathering more importance in IC packaging as the industry continues miniaturization trends in microfabrication nodes and IC packaging to meet design and utility need .. read more
Author(s)
Jeb H. Flemming,Kevin Dunn,James Gouker,Carrie Schmidt,Roger Cook
Event
IPC APEX EXPO 2013

TOF SIMS Analysis for SnxOy Determination on Lead-Free HASL PCB’s

During the production of Lead-Free Hot Air Solder Leveling (LF HASL),non-wetting issues in several components were found including BGA pad. The common visual aspect of the suspicious pads was t .. read more
Author(s)
José María Servín,Cynthia Gómez
Event
IPC APEX EXPO 2013

Improving Density in Microwave Multilayer Printed Circuit Boards for Space Applications

The need in complexity for microwave space products such as active BFNs (Beam Forming Networks) is increasing,with a significantly growing number of amplitude / phase control points (number of .. read more
Author(s)
David Névo,Olivier Vendier,Jean-Louis Cazaux,Jean-Luc Lortal
Event
IPC APEX EXPO 2013

Behavior of Materials in the Manufacturing Environment

This study was conducted to understand seven materials reliability,behavior of Dielectric constant and Dissipation factor over medium to high frequencies. A modified version of HDPUG design was .. read more
Author(s)
Hardeep Heer
Event
IPC APEX EXPO 2013

Nanomaterials Performance Advantages in Printed Electronics Addressing Implementation Issues

Nanotechnology is a key enabling technology for printed electronics. Low temperature reactivity,reaction speeds,flexibility and fine pitch considerations dictate that nanomaterials should be gi .. read more
Author(s)
Alan Rae
Event
IPC APEX EXPO 2013

Phototonic Curing: Broad Implications in Printed Electronics

•Photonic curing uses high-intensity flash lamps to selectively heat target materials. •The PulseForge tools are based on the patented use of photonic curing and are designed for use in develop .. read more
Author(s)
Kurt A. Shroder
Event
IPC APEX EXPO 2013

Development of Printed Flex Circuits

•Developments of Printed FPCs - PE resist for long FPCs - Flexible Touch Sensor Panel(TSP) application - Single-sided Printed FPCs - Double-sided Printed FPCs - Smart Printed FPCs .. read more
Author(s)
Hirofumi Matsumoto
Event
IPC APEX EXPO 2013

The Effects of Human-Induced Contamination on PCB Assembly Electrical Reliability

With the ever-present pressure toward miniaturization in electronic devices,smaller distances between traces and component terminations are likely to increase the devices’ sensitivity to contam .. read more
Author(s)
Eric Bastow
Event
IPC APEX EXPO 2013

Capillary IC – A New Platform for High Throughput or High Resolution Separations of Ionic Compounds

High pressure capillary IC allows you to: Lower operational costs – water,waste,consumables “Always Ready” Improved system and analytical performance Convenience Rush samples Enables high-resol .. read more
Author(s)
Peter Bodsky
Event
IPC APEX EXPO 2013

Cleanliness Assessment for Class III Lead-Free No-Clean Assemblies

For mission critical electronics or Class III products,such as those used within the military,aerospace and medical industries,highest electronic reliability is a requirement as failure is not .. read more
Author(s)
Umut Tosun,Ravi Parthasarathy,Michael McCutchen
Event
IPC APEX EXPO 2013

CO2 Clean Manufacturing Technology for Electronic Device Fabrication

CO2 technology offers electronic device manufacturers a robust platform for a variety of precision cleaning and machining applications. Surface and substrate contamination such as flux residues .. read more
Author(s)
David Jackson
Event
IPC APEX EXPO 2013

Electrical Test Conditions & Considerations

When testing PCBs it can be quite confusing as to what method to use,parameters are necessary for the Performance Class and what cost to associate in the build to way against the long term reli .. read more
Author(s)
Rick Meraw,Todd Kolmodin
Event
IPC APEX EXPO 2013

Hi Pot Dielectric Breakdown Automated Verification How-To

The Printed Circuit Board (PCB) builds get ever more complex. With this the layer counts climb but the overall thickness remains the same. From this the cores of the build are reduced and the d .. read more
Author(s)
Todd L Kolmodin
Event
IPC APEX EXPO 2013

Two Print Stencils Systems

The Two print stencils process has been a very useful tool in SMT Assembly and Package Assembly. It is also useful in Assemblies that require mixed technologies; including SMT / Through Hole,SM .. read more
Author(s)
William E. Coleman
Event
IPC APEX EXPO 2013

Profiled Squeegee Blade: Rewrites the Rules for Angle of Attack

For centuries,the squeegee blade has been used throughout many applications for depositing viscous materials through screens and stencils to transfer images on to substrates,from cloth material .. read more
Author(s)
Ricky Bennett,Rich Lieske,Corey Beech
Event
IPC APEX EXPO 2013

Evaluating the Accuracy of a Nondestructive Thermo Couple Attach Method for Area Array Package Profiling

The oven recipe,which consists of the reflow oven zone temperature settings and the speed of the conveyor,will determine a specific time-temperature profile for a given PCB assembly. In order t .. read more
Author(s)
S. Manian Ramkumar,Tim Grove
Event
IPC APEX EXPO 2013

Military Applications of Flexible Circuits

1.Conventional Flex 2.Basic Materials 3.Failure Modes 4.HDI Flex Summary,conventional builds Cautions in Design •Average or above Design Expertise Required –PTH to close to edge of part –Panel .. read more
Author(s)
Bradford Saunders
Event
IPC APEX EXPO 2013

Direct Determination of Phosphorus Content in Electroless Nickel Plating Using X-ray Fluorescence (XRF) Spectroscopy

Electroless plating processes are popular because of their performance,reliability and cost effectiveness. The process combines unique deposit properties such as uniform plating build up regard .. read more
Author(s)
Jim Bogert,Ryan Boyle,Volker Rößiger,Wolfgang Klöck
Event
IPC APEX EXPO 2013

Via Filling: Challenges for the Chemistry in the Plating Process

Copper filling of laser drilled blind micro vias (BMV´s) is now the standard production method for high density interconnects. Copper filled BMV´s are used as solder bump sites for IC packaging .. read more
Author(s)
Mike Palazzola,Nina Dambrowsky,Stephen Kenny
Event
IPC APEX EXPO 2013

Sources in A Production Line (SMT) and Solutions against ESD (Electrostatic Discharge) - Requirements Today and In The Future

The structures of electronic components become smaller and smaller. 5 volts or smaller voltage of an electrostatic charge are enough to damage or change the structures in small electronic compo .. read more
Author(s)
Hartmut Berndt
Event
IPC APEX EXPO 2013

Big Ideas on Miniaturisation

The next generation miniaturised SMT devices waiting to make their mark will require the assembly community to re think their processes and toolsets. The feature sizes that are involved in this .. read more
Author(s)
Clive Ashmore,Mark Whitmore,Jeff Schake
Event
IPC APEX EXPO 2013

Low Surface Energy Coatings,Rewrites the Area Ratio Rules

Paste release characteristics are driven by the Area Ratio formula,which is based upon conventional stencil foil materials such as a variety of stainless steel alloys,nickel,etc. The surface en .. read more
Author(s)
Ricky Bennett,Eric Hanson
Event
IPC APEX EXPO 2013

Printing and Assembly Challenges for QFN Devices

Although QFN devices present a challenge to the SMT assembly process with proper stencil design,proper stencil technology selection (Laser,Electroform,Nano-Coat),and proper PCB solder mask layo .. read more
Author(s)
Rachel Short
Event
IPC APEX EXPO 2013

Reliability Performance of Very Thin Printed Circuit Boards with regard to Different any-Layer Manufacturing Technologies

The next generation of smart phones will demand very thin multi-layer boards to reduce the product thickness again. This paper shows three different manufacturing approaches,which can be used f .. read more
Author(s)
Thomas Krivec,Gerhard Schmid,Martin Fischeneder,Gerhard Stoiber
Event
IPC APEX EXPO 2013

Controlling Moisture During Inner Layer Processing

•Two primary failure modes from trapped moisture: •Premature resin decomposition from incomplete resin cross-linking. •Explosive vaporization during high temperature thermal exposure. .. read more
Author(s)
John A. Marshall
Event
IPC APEX EXPO 2013

Micro Trace Resistive Technology

Micro Trace Resistor Technology allows thin film resistors to be built within a printed circuit trace that is less than 100 microns wide. Using standard subtractive printed circuit board proces .. read more
Author(s)
Bruce P. Mahler
Event
IPC APEX EXPO 2013

Effect of Toughening and E-Glass Sizing on Fracture Toughness and Delamination in High Thermal Stability Electrical Laminates

In this work we report results of the fracture toughness of a high thermal stability resin system toughened by The Dow Chemical Company proprietary particulate-type toughening material. Results .. read more
Author(s)
Lameck Banda,Bill Mercer,Mark Wilson,Robert Hearn,Michael Mullins,George Piotrowski,Tab Bates,Shobha Murari
Event
IPC APEX EXPO 2013

QFN Voiding Control Via Solder Mask Patterning On Thermal Pad

•Voiding of QFN a concern due to large thermal pad,low standoff,and many thermal via •Divided thermal pad preferred,with SMD better than NSMD •This work focus on systematic study on effect of S .. read more
Author(s)
Derrick Herron,Yan Liu,Ning-Cheng Lee
Event
IPC APEX EXPO 2013

Fluxless Die Attach by Activated Forming Gas

Eutectic god-tin (Au80Sn20) is widely used as the die-attach material for making radio-frequency (RF) and microwave devices. The metallic bonding is typically achieved by soldering using a gold .. read more
Author(s)
C. Christine Dong,Russell A. Siminski
Event
IPC APEX EXPO 2013

Building HDI Structures using Thin Films and Low Temperature Sintering Paste

Circuit complexity and density requirements continue to push PCB fabrication capability limits. Component pitch and routing requirements are continually becoming more aggressive and difficult t .. read more
Author(s)
Catherine Shearer,James Haley,Chris Hunrath
Event
IPC APEX EXPO 2013

Exploring the High Temperature Reliability Limits for Silicone Adhesives

The thermal stability of silicone polymers,fluids and resins has been well documented and studied extensively. The high temperature performance of silicone adhesives and sealants used for elect .. read more
Author(s)
Carlos Montemayor
Event
IPC APEX EXPO 2013

Plasma Polymerization: A Versatile and Attractive Process for Conformal Coating

The use of plasma processing in the manufacture of electronics is growing as we discover more and more applications for this technology. It is now common for plasma etching and cleaning to be u .. read more
Author(s)
Andy Brooks,Siobhan Woollard,Gareth Hennighan,Elizabeth Duncan,Tim von Werne
Event
IPC APEX EXPO 2013

Mobile Electronics,How to Protect Internal Circuitry from A Harsh Environment

The portable electronics market has driven steep-slope growth for over a decade and continues to deliver amazing handheld electronic devices; manufacturers of these products are facing challeng .. read more
Author(s)
Hector Pulido
Event
IPC APEX EXPO 2013

The Black Swan Effect in Military Applications

#NAME? .. read more
Author(s)
Jack Stradley
Event
IPC APEX EXPO 2013

Evaluating Corrosion Resistance of Ceramic Resistors: Mixed Flowing Gas versus Flower of Sulfur Tests

Multi-layer organic laminates which make up over 90% of the present types of interconnecting substrates in today’s electronics can develop a loss of insulation resistance between two biased con .. read more
Author(s)
Bhanu Sood,Michael Osterman
Event
IPC APEX EXPO 2013

New High-Performance Organophosphorus Flame Retardant

A new non-halogen flame retardant has been developed and is useful for a variety of high performance applications. This non-reactive phosphorus-based material satisfies fire safety needs for a .. read more
Author(s)
Kimberly M. White,Daniel De Schryver,Randy Chaya
Event
IPC APEX EXPO 2013

The Role and Future of

Author(s)
John H. Lau
Event
IPC APEX EXPO 2013

Qualification of Solder Beading and Tombstoning in Passive Devices using Designed Experiments

Solder beading and tombstoning are observed increasingly with chip components as their size decreases. This is even more crucial in today’s packaging,due to the high ratio of passive components .. read more
Author(s)
Vijaykumar Ganeshan,Karthik Thenalur,S. Manian Ramkumar
Event
IPC APEX EXPO 2013

Potential Global Warming Contribution from a Typical Electronics

Examination of historical data for a defunct electronics manufacturing plant in Ontario,Canada has allowed the determination of the potential global warming contribution by the plant for the ye .. read more
Author(s)
Bev Christian,Tracey Forrest
Event
IPC APEX EXPO 2013

Cleaning in an HDI World

Electronic assembly innovations drive more performance using highly dense interconnects. Assembly residues may increase the risk of premature failure or improper functionality. The challenge fo .. read more
Author(s)
Mark Northrup,Joe Russeau,Mike Bixenman
Event
IPC Midwest 2012

QFN Flux Entrapment Case Study

The presentation will discuss the problems that many QFN users are dealing with by having flux trapped under the component that is still gooey and conductive and the effect on circuit performan .. read more
Author(s)
Terry Munson
Event
IPC Midwest 2012