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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Case Study Comparing the Solderability of a Specific Pb Free No Clean Paste in Vapor Phase and Convection Reflow
To help address the environmental requirements driven by the European Union RoHS Directive,consumer applications have changed the solder alloys for the manufacturing of printed circuit board as
.. weiterlesen
A Novel Thermal Material for Multi-Layer Metal Core Printed Circuit Boards
Today,the metal core printed circuit board (MCPCB) business is booming thanks to the rising popularity of LED TV. The majority of MCPCB is single sided. However,the demand for multi-layer board
.. weiterlesen
Basics of (PCB) Thermal Management for LED Applications
The reader may wonder why „PCB? in the title is between quotes. The original objective of the paper was to lay a firm base for people who are involved in printed circuit board (PCB) design for
.. weiterlesen
Head-In-Pillow: Are we still Snoozing?
-BA flux: Water soluble BA flux has a higher HiP risk relative to NC BA flux,likely due to higher surface oxidation risks.
-Deflux: Washing process using water or DIW in combination with other
.. weiterlesen
Detection of Head-on-Pillow Defects Using 5DX Method
Base on our experience,HiP defect comes in various shapes and
forms. Some of the HiP looks like an ordinary open joint,while others have an eclipse profile. The tough ones to detect are those t
.. weiterlesen
Impregnation of Metal Complex into Epoxy Insulation Materials Using Supercritical Carbon Dioxide and Its Application for Copper Plating
Metal plating of epoxy polymer has been widely applied for industrial products for a long time,especially in the field of Printed Circuit Boards (PCB’s). This technique is one of the most impor
.. weiterlesen
Deposition of Thin Copper in Pre-formed Vias on Thin Flexible Base Materials
This paper reports on further developments for an innovative copper deposition technology that was presented two years ago at this conference. At that time,the innovative technology was describ
.. weiterlesen
A Combination Flame Retardant Curing Agent Material For Non-Halogen PCB Laminates
As interest continues in the development of non-halogen flame retardants for printed circuit boards,the requirements for robust thermal stability and lead-free solder compatibility also continu
.. weiterlesen
A Review of Halogen/Halide-Free Test Methods and Classifications for Soldering Materials in the Electronics Industry
Over the last few years,there has been an increase in the Evaluation and use of halogen-free soldering materials. In addition,
there has been increased scrutiny into the level of halogens and r
.. weiterlesen
Effects of Tin Whisker Formation on Nanocrystalline Copper
Spontaneously forming tin whiskers,which emerge unpredictably from pure tin surfaces,have regained prevalence as a topic within the electronics research community. This has resulted from the RO
.. weiterlesen
Effect of Gold Content on the Reliability of SnAgCu Solder Joints
Electroplated Ni/Au over Cu is a popular metallization for PCB finish as well as for component leads,especially wire-bondable high frequency packages,where the gold thickness requirement for wi
.. weiterlesen
Vapor phase and Convection Reflow: Comparison of Solder Paste Residue Chemical Reliability
Convection soldering remains the most common reflow process in electronic assembly,mostly in air,but sometimes using a nitrogen atmosphere to reduce oxidation.
On the other hand,vapor phase sol
.. weiterlesen
The Effects of Partially Activated No-Clean Flux Residues under Component Bodies and No-Clean Flux Residues Entrapped Under RF Cans on...
With the predominance of no-clean soldering processes and ever decreasing component standoff,the industry has had to consider the reliability of,what may be,partially activated or “gooey” flux
.. weiterlesen
Soldering Process Improvement of Critical SMT Connectors and for the Retention of Press-fit SFP Cages
As Original Design Manufacturers (ODM) adopt the use of finer pitch connectors,with increased pin count on PCB assemblies. It becomes challenging for Electronic Contract Manufacturing Services
.. weiterlesen
Solder Charge Grid Array: Advancements in the Technology of Surface Mount Area Array Solder Joint Attachment
Surface mount area arrays (SMAA) have been in existence for decades and are increasingly becoming more important as printed circuit board (PCB) assemblies become further complex with package mi
.. weiterlesen
A New Approach for Early Detection of PCB Pad Cratering Failures
Pad cratering refers to the initiation and propagation of fine cracks beneath BGA pads in organic substrates or printed circuit boards. These cracks,which usually initiate under the application
.. weiterlesen
Analysis of Electrochemical Migration Kinetics Using Electrochemical Impedance Spectroscopy
The propensity of printed circuit boards to electrochemical migration has been assessed traditionally by using surface insulation resistance technique with a DC bias on standard comb structures
.. weiterlesen
The Effects of Lead-Free Reflow on Conductive Anodic Filament (CAF) Performance of Materials
This paper details the results achieved by the High Density Packaging Users Group (HDPUG) Consortium investigating the hole-wall to hole-wall CAF performance of 20 different Pb-free printed wir
.. weiterlesen
PCB Design Perfection Starts in the Cad Library Part 1 – The 1608 (Eia 0603) Chip Component
The CAD library is the starting point that affects every process from PCB layout through PCB manufacturing and assembly. There are dozens of things to consider when creating a CAD library that
.. weiterlesen
PCB Design Principles for QFN and Other Bottom Termination Components
Although many of the QFN and bottom termination products are small in outline and utilize a plastic encapsulated copper
lead-frame structure they do not resemble the more traditional small outl
.. weiterlesen
DFM Rules for Smartphones: An Analysis of Yield on Extremely Dense Assemblies
Handheld portable products such as smartphones are trending toward smaller form factors while simultaneously increasing in functionality to keep up with consumer demands. This is achieved in pa
.. weiterlesen
A Revolutionary Printing Solution for Heterogeneous Surface Mount Assembly
As consumers the expectation of increased functionality within new products is a given. However there comes a time where this tireless demand for product efficiency starts to stretch the design
.. weiterlesen
Effect of Nano-Coated Stencil on 01005 Printing
The demand for product miniaturization,especially in the handheld device area,continues to challenge the board assembly industry. The desire to incorporate more functionality while making the p
.. weiterlesen
Nano Coated Stencils for Optimized Solder Paste Printing
Cost reduction in electronic assembly and soldering is a key issue for economic survival in the global market. Very promising
ways to reduce failure costs and increase productivity are: reduce
.. weiterlesen
Accurate Quantitative Physics-of-Failure Approach to Integrated Circuit Reliability
Modern electronics typically consist of microprocessors and other complex integrated circuits (ICs) such as FPGAs,ADCs,and memory. They are susceptible to electrical,mechanical and thermal mode
.. weiterlesen
Automated Design Analysis: Reliability Modeling of Circuit Card Assemblies
It is widely known and understood that the overall cost and quality of a product is most influenced by decisions made early in the design stage. Finding and correcting design flaws later in the
.. weiterlesen
Electronic Housings: Considerations,Standards and Practices for Industrial Applications
Circuit housings used in industrial and utility applications have requirements often not needed in the commercial or consumer electronics industries. The device may be used in locations as dive
.. weiterlesen
Transmission Line Characterization through the Enhanced Root Impulse Energy Loss
In today’s PCB industry,the challenges are no longer just on how to control and improve the manufacturing
processes,but also to ensure the fabricated product is compliant to the industry standa
.. weiterlesen
Industry Collaboration Driving Proactive Environmental Improvements
•iNEMI Environmental Vision
•Highlights of Environmental Conscious Electronics Chapter of iNEMI Roadmap
•Key iNEMI Projects
•Environmental Impact of Electronics
–Products
–Services
•Concluding
.. weiterlesen
Low Cost Electrical Specifications for Design and Manufacture of GHz Boards
Test and quality coverage for an assembled printed circuit board is becoming increasingly more expensive and complex as digital electronics moves well into the gigahertz era. Traditional tools
.. weiterlesen
Case Study Comparing the Solderability of a Specific Pb Free No Clean Paste in Vapor Phase and Convection Reflow
To help address the environmental requirements driven by the European Union RoHS Directive,consumer applications have changed the solder alloys for the manufacturing of printed circuit board as
.. weiterlesen
A Novel Thermal Material for Multi-Layer Metal Core Printed Circuit Boards
Today,the metal core printed circuit board (MCPCB) business is booming thanks to the rising popularity of LED TV. The majority of MCPCB is single sided. However,the demand for multi-layer board
.. weiterlesen
Basics of (PCB) Thermal Management for LED Applications
The reader may wonder why „PCB? in the title is between quotes. The original objective of the paper was to lay a firm base for people who are involved in printed circuit board (PCB) design for
.. weiterlesen
Head-In-Pillow: Are we still Snoozing?
-BA flux: Water soluble BA flux has a higher HiP risk relative to NC BA flux,likely due to higher surface oxidation risks.
-Deflux: Washing process using water or DIW in combination with other
.. weiterlesen
Detection of Head-on-Pillow Defects Using 5DX Method
Base on our experience,HiP defect comes in various shapes and
forms. Some of the HiP looks like an ordinary open joint,while others have an eclipse profile. The tough ones to detect are those t
.. weiterlesen
Impregnation of Metal Complex into Epoxy Insulation Materials Using Supercritical Carbon Dioxide and Its Application for Copper Plating
Metal plating of epoxy polymer has been widely applied for industrial products for a long time,especially in the field of Printed Circuit Boards (PCB’s). This technique is one of the most impor
.. weiterlesen
Deposition of Thin Copper in Pre-formed Vias on Thin Flexible Base Materials
This paper reports on further developments for an innovative copper deposition technology that was presented two years ago at this conference. At that time,the innovative technology was describ
.. weiterlesen
A Combination Flame Retardant Curing Agent Material For Non-Halogen PCB Laminates
As interest continues in the development of non-halogen flame retardants for printed circuit boards,the requirements for robust thermal stability and lead-free solder compatibility also continu
.. weiterlesen
A Review of Halogen/Halide-Free Test Methods and Classifications for Soldering Materials in the Electronics Industry
Over the last few years,there has been an increase in the Evaluation and use of halogen-free soldering materials. In addition,
there has been increased scrutiny into the level of halogens and r
.. weiterlesen
Effects of Tin Whisker Formation on Nanocrystalline Copper
Spontaneously forming tin whiskers,which emerge unpredictably from pure tin surfaces,have regained prevalence as a topic within the electronics research community. This has resulted from the RO
.. weiterlesen
Effect of Gold Content on the Reliability of SnAgCu Solder Joints
Electroplated Ni/Au over Cu is a popular metallization for PCB finish as well as for component leads,especially wire-bondable high frequency packages,where the gold thickness requirement for wi
.. weiterlesen
Vapor phase and Convection Reflow: Comparison of Solder Paste Residue Chemical Reliability
Convection soldering remains the most common reflow process in electronic assembly,mostly in air,but sometimes using a nitrogen atmosphere to reduce oxidation.
On the other hand,vapor phase sol
.. weiterlesen
The Effects of Partially Activated No-Clean Flux Residues under Component Bodies and No-Clean Flux Residues Entrapped Under RF Cans on...
With the predominance of no-clean soldering processes and ever decreasing component standoff,the industry has had to consider the reliability of,what may be,partially activated or “gooey” flux
.. weiterlesen
Soldering Process Improvement of Critical SMT Connectors and for the Retention of Press-fit SFP Cages
As Original Design Manufacturers (ODM) adopt the use of finer pitch connectors,with increased pin count on PCB assemblies. It becomes challenging for Electronic Contract Manufacturing Services
.. weiterlesen
Solder Charge Grid Array: Advancements in the Technology of Surface Mount Area Array Solder Joint Attachment
Surface mount area arrays (SMAA) have been in existence for decades and are increasingly becoming more important as printed circuit board (PCB) assemblies become further complex with package mi
.. weiterlesen
A New Approach for Early Detection of PCB Pad Cratering Failures
Pad cratering refers to the initiation and propagation of fine cracks beneath BGA pads in organic substrates or printed circuit boards. These cracks,which usually initiate under the application
.. weiterlesen
Analysis of Electrochemical Migration Kinetics Using Electrochemical Impedance Spectroscopy
The propensity of printed circuit boards to electrochemical migration has been assessed traditionally by using surface insulation resistance technique with a DC bias on standard comb structures
.. weiterlesen
The Effects of Lead-Free Reflow on Conductive Anodic Filament (CAF) Performance of Materials
This paper details the results achieved by the High Density Packaging Users Group (HDPUG) Consortium investigating the hole-wall to hole-wall CAF performance of 20 different Pb-free printed wir
.. weiterlesen
PCB Design Perfection Starts in the Cad Library Part 1 – The 1608 (Eia 0603) Chip Component
The CAD library is the starting point that affects every process from PCB layout through PCB manufacturing and assembly. There are dozens of things to consider when creating a CAD library that
.. weiterlesen
PCB Design Principles for QFN and Other Bottom Termination Components
Although many of the QFN and bottom termination products are small in outline and utilize a plastic encapsulated copper
lead-frame structure they do not resemble the more traditional small outl
.. weiterlesen
DFM Rules for Smartphones: An Analysis of Yield on Extremely Dense Assemblies
Handheld portable products such as smartphones are trending toward smaller form factors while simultaneously increasing in functionality to keep up with consumer demands. This is achieved in pa
.. weiterlesen
A Revolutionary Printing Solution for Heterogeneous Surface Mount Assembly
As consumers the expectation of increased functionality within new products is a given. However there comes a time where this tireless demand for product efficiency starts to stretch the design
.. weiterlesen
Effect of Nano-Coated Stencil on 01005 Printing
The demand for product miniaturization,especially in the handheld device area,continues to challenge the board assembly industry. The desire to incorporate more functionality while making the p
.. weiterlesen
Nano Coated Stencils for Optimized Solder Paste Printing
Cost reduction in electronic assembly and soldering is a key issue for economic survival in the global market. Very promising
ways to reduce failure costs and increase productivity are: reduce
.. weiterlesen
Accurate Quantitative Physics-of-Failure Approach to Integrated Circuit Reliability
Modern electronics typically consist of microprocessors and other complex integrated circuits (ICs) such as FPGAs,ADCs,and memory. They are susceptible to electrical,mechanical and thermal mode
.. weiterlesen
Automated Design Analysis: Reliability Modeling of Circuit Card Assemblies
It is widely known and understood that the overall cost and quality of a product is most influenced by decisions made early in the design stage. Finding and correcting design flaws later in the
.. weiterlesen
Electronic Housings: Considerations,Standards and Practices for Industrial Applications
Circuit housings used in industrial and utility applications have requirements often not needed in the commercial or consumer electronics industries. The device may be used in locations as dive
.. weiterlesen
Transmission Line Characterization through the Enhanced Root Impulse Energy Loss
In today’s PCB industry,the challenges are no longer just on how to control and improve the manufacturing
processes,but also to ensure the fabricated product is compliant to the industry standa
.. weiterlesen
Industry Collaboration Driving Proactive Environmental Improvements
•iNEMI Environmental Vision
•Highlights of Environmental Conscious Electronics Chapter of iNEMI Roadmap
•Key iNEMI Projects
•Environmental Impact of Electronics
–Products
–Services
•Concluding
.. weiterlesen
Low Cost Electrical Specifications for Design and Manufacture of GHz Boards
Test and quality coverage for an assembled printed circuit board is becoming increasingly more expensive and complex as digital electronics moves well into the gigahertz era. Traditional tools
.. weiterlesen