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.
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Event
IPC Midwest 2012