Knowledge Hub
Your Gateway to Technical Knowledge Exchange for the Global Electronics Community
Explore our database of industry knowledge that fuels innovation, learning, and professional growth. Knowledge Hub is a collection of conference technical papers, webinars, presentations, on-demand video and more. You can search by author, title, keyword and type of content. You can also search for keywords and topics in the Tag field. Access to Knowledge Hub is reserved for members.
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Water Vapor Uptake and Release in Printed Boards
Excessive moisture entrapped/absorbed within printed board laminates can expand during soldering operations,causing delamination or other damage. While moisture absorption data is available for
.. read more
Influence of Electroless Copper on IC Reliability
The process of plating through holes (PTH) is inherent to modern PCB manufacturing. In an arena of increasing circuit density and layer counts,the reliability of the PTH process is under consta
.. read more
Effect of Lead-free Soldering on Key Material Properties of FR-4 Printed Circuit Board Laminates
The high temperature exposures associated with lead-free soldering of printed circuit boards (PCBs) can alter the laminate
material properties thereby creating a shift in the performance and re
.. read more
Reliability and Failure Mechanisms of Laminate Substrates in a Pb-free World
The plated thru hole has changed considerably in 50 years of electronic packaging,but in its many forms remains the most
common interconnection in 1st and 2nd level electronic packaging,and is
.. read more
FEA Study of Solder Hole Fill Impact on the Reliability of PTH Solder Joints
This paper is focused on the impact of solder hole fill on the reliability of the plated-through-hole (PTH) solder joints with different board thicknesses. Finite element analysis (FEA) is empl
.. read more
Predictor Model … Round Robin
Solder joints tend to crack after extended thermal cycling,if the component and the circuit board are CTE mis-matched. Predicting this t-cycle lifetime is critical in optimizing product design
.. read more
Novel Low Dk/Df Materials for High Speed PWB
The mobile communication devices such as cell phones require high speed transmission of large volume data as well as reduction in size and weight. When signal is transmitted in high speed and f
.. read more
Future Lead-Free Solder Alloys and Fluxes – Meeting Challenges of Miniaturization
In general,new lead-free solder alloys with the following characteristics are desired in order to enable the continuation of miniaturization trend: (1) alloy with a reduced melting temperature,
.. read more
Effect of Design Variables on the Reliability of Lead Free Area Array Connectors
As the use of area array connectors has become more widespread in electronic assemblies,the need to evaluate their reliability has increased. There is,however,limited information on how best to
.. read more
New Reinforcement Material can Solve Heat and Co-Efficient of Thermal Expansion Challenges of the Printed Circuit Board and IC Substrate
Printed Circuit Boards (PCB) and IC Substrates are the essential building blocks of electronics. As the technology moves rapidly into the future,the electronics industry faces issues with hot s
.. read more
AFFORDABLE MICROWAVE CIRCUIT BOARD SUBSTRATE MATERIAL
While glass fibers are commonly used to reinforce circuit board substrates,they have a high dielectric constant and loss. Cyclic olefin copolymer fibers have a lower dielectric constant and los
.. read more
Lead Free Assembly Impacts on Laminate Material Properties and “Pad Crater” Failures
Printed circuit board (PCB) feature sizes are decreasing to support increasing density thrusts for electronic products and packaging. The transition to lead-free products has changed the stress
.. read more
New Methods to Efficiently Test the Reliability of Plated Vias and to Model Plated Via Life from Laminate Material Data
This paper continues work by Sun Microsystems and the University of Maryland,CALCE[1] to predict plated through via life using laminate material properties,plated copper material properties,and
.. read more
A DOE to assess PCB fabrication material design and process using IST (Interconnect Stress Testing) to improve fine pitch BGA...
During the development of a new medical imaging system,via quality was identified as a potentially source of infantile failures. Premature via failures were precipitated in a critical 14 layer
.. read more
Via Hole Filling Technology for High Density,High Aspect Ratio Printed Wiring Boards Using a High Tg,low CTE Plugging Paste
The continued fast pace towards miniaturization is leading circuit board designers to push the envelope on integration density. This trend is driving fabricators to closely look at methods and
.. read more
LOWERING LAYERS w/HDI for RoHS ROBUSTNESS
A perplexing challenge for RoHS compliance is adapting large,complex and thick,high-layer count multilayers to lead-free assembly. These are typically dense,complex assemblies with large BGAs a
.. read more
The Thermal and Thermo-Mechanical Properties of Carbon Composite Laminate
Carbon Composite raw material property comparison are summarized below:
-Thermal Conductivity – Watts per meter ? Kelvin.
The core material can spread up to 620.0 W/m?K.
-CTE – parts per millio
.. read more
Predicting Plated Through Hole Life at Assembly and in the Field from Thermal Stress Data
Over the past ten years,two new test methods: Interconnect Stress Test [1] and Highly Accelerated Thermal Shock [2] have
been developed to perform thermal cycling testing and in particular,to m
.. read more
Enhancement of CSP Mechanical Strength using Underfill or Bonding Material
Underfill technology has been used to minimize the mismatch of the Coefficient of Thermal Expansion (CTE)
in flip chip technology. An extension of this application has been used to increase the
.. read more
Water Vapor Uptake and Release in Printed Boards
Excessive moisture entrapped/absorbed within printed board laminates can expand during soldering operations,causing delamination or other damage. While moisture absorption data is available for
.. read more
Influence of Electroless Copper on IC Reliability
The process of plating through holes (PTH) is inherent to modern PCB manufacturing. In an arena of increasing circuit density and layer counts,the reliability of the PTH process is under consta
.. read more
Effect of Lead-free Soldering on Key Material Properties of FR-4 Printed Circuit Board Laminates
The high temperature exposures associated with lead-free soldering of printed circuit boards (PCBs) can alter the laminate
material properties thereby creating a shift in the performance and re
.. read more
Reliability and Failure Mechanisms of Laminate Substrates in a Pb-free World
The plated thru hole has changed considerably in 50 years of electronic packaging,but in its many forms remains the most
common interconnection in 1st and 2nd level electronic packaging,and is
.. read more
FEA Study of Solder Hole Fill Impact on the Reliability of PTH Solder Joints
This paper is focused on the impact of solder hole fill on the reliability of the plated-through-hole (PTH) solder joints with different board thicknesses. Finite element analysis (FEA) is empl
.. read more
Predictor Model … Round Robin
Solder joints tend to crack after extended thermal cycling,if the component and the circuit board are CTE mis-matched. Predicting this t-cycle lifetime is critical in optimizing product design
.. read more
Novel Low Dk/Df Materials for High Speed PWB
The mobile communication devices such as cell phones require high speed transmission of large volume data as well as reduction in size and weight. When signal is transmitted in high speed and f
.. read more
Future Lead-Free Solder Alloys and Fluxes – Meeting Challenges of Miniaturization
In general,new lead-free solder alloys with the following characteristics are desired in order to enable the continuation of miniaturization trend: (1) alloy with a reduced melting temperature,
.. read more
Effect of Design Variables on the Reliability of Lead Free Area Array Connectors
As the use of area array connectors has become more widespread in electronic assemblies,the need to evaluate their reliability has increased. There is,however,limited information on how best to
.. read more
New Reinforcement Material can Solve Heat and Co-Efficient of Thermal Expansion Challenges of the Printed Circuit Board and IC Substrate
Printed Circuit Boards (PCB) and IC Substrates are the essential building blocks of electronics. As the technology moves rapidly into the future,the electronics industry faces issues with hot s
.. read more
AFFORDABLE MICROWAVE CIRCUIT BOARD SUBSTRATE MATERIAL
While glass fibers are commonly used to reinforce circuit board substrates,they have a high dielectric constant and loss. Cyclic olefin copolymer fibers have a lower dielectric constant and los
.. read more
Lead Free Assembly Impacts on Laminate Material Properties and “Pad Crater” Failures
Printed circuit board (PCB) feature sizes are decreasing to support increasing density thrusts for electronic products and packaging. The transition to lead-free products has changed the stress
.. read more
New Methods to Efficiently Test the Reliability of Plated Vias and to Model Plated Via Life from Laminate Material Data
This paper continues work by Sun Microsystems and the University of Maryland,CALCE[1] to predict plated through via life using laminate material properties,plated copper material properties,and
.. read more
A DOE to assess PCB fabrication material design and process using IST (Interconnect Stress Testing) to improve fine pitch BGA...
During the development of a new medical imaging system,via quality was identified as a potentially source of infantile failures. Premature via failures were precipitated in a critical 14 layer
.. read more
Via Hole Filling Technology for High Density,High Aspect Ratio Printed Wiring Boards Using a High Tg,low CTE Plugging Paste
The continued fast pace towards miniaturization is leading circuit board designers to push the envelope on integration density. This trend is driving fabricators to closely look at methods and
.. read more
LOWERING LAYERS w/HDI for RoHS ROBUSTNESS
A perplexing challenge for RoHS compliance is adapting large,complex and thick,high-layer count multilayers to lead-free assembly. These are typically dense,complex assemblies with large BGAs a
.. read more
The Thermal and Thermo-Mechanical Properties of Carbon Composite Laminate
Carbon Composite raw material property comparison are summarized below:
-Thermal Conductivity – Watts per meter ? Kelvin.
The core material can spread up to 620.0 W/m?K.
-CTE – parts per millio
.. read more
Predicting Plated Through Hole Life at Assembly and in the Field from Thermal Stress Data
Over the past ten years,two new test methods: Interconnect Stress Test [1] and Highly Accelerated Thermal Shock [2] have
been developed to perform thermal cycling testing and in particular,to m
.. read more
Enhancement of CSP Mechanical Strength using Underfill or Bonding Material
Underfill technology has been used to minimize the mismatch of the Coefficient of Thermal Expansion (CTE)
in flip chip technology. An extension of this application has been used to increase the
.. read more