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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A Microvia Damage Model
An electrical model of a thermally damaged microvia has been constructed incorporating observations from electrical test, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy
.. read more
High Resolution Physical Analyses of Microvia - Target Pad Interfaces
Open circuit failure in microvias is an important issue for critical device reliability yet remains poorly understood. Separations at the microvia-target pad interface caused by board-normal
.. read more
Solder Joint Embrittlement Mechanisms,Solutions and Standards
The change to lead-free solders in electronic assemblies created a need to replace tin-lead solderable termination finishes with materials such as pure tin or soft gold,on electronic component
.. read more
Influence of Salt Residues on BGA Head in Pillow
The oxide layers are known as wetting inhibitors in component and PCB metallizations. The oxide acts as barrier that prevent the tin diffusion from happening. Besides,in corrosion studies,the r
.. read more
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
Is the ENIG Process Evil,or is it Maybe QA,Engineer or Sales Guy?
The case of processing issues with Electroless Nickel/Immersion Gold (ENIG) is well documented,even as it endures as a very popular surface finish. Certainly the market says that quality ENIG h
.. read more
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
.. read more
Drop Testing of a Pb-Free Board after Assembly and SnPb-Rework
•Board-level drop shock test was performed on 9 assemblies
–63 parts / board
–Parts representative of military package styles
•Assembled on Pb-free compatible laminate with SAC 305 solder
•Sele
.. read more
Comparison of the Electrochemical and Physical Properties of Nanocrystalline Copper Deposition in the Fabrication of Printed Wiring Boards
Typical electrodeposition of conventional metals produces deposits that are polycrystalline in nature,comprised of many crystal grains separated by grain boundaries. Adding grain refiners to a
.. read more
Copper Tin Intermetallic Crystals and Their Role in the Formation of Microbridges between the Leads of Hand Reworked Fine Pitch...
Wave soldering is a mature manufacturing process that metallurgically joins component and PWB termination features by
passing them together across the flowing surface of a molten solder reservo
.. read more
IPC Solder Products Value Council (SPVC) Lead-Free Technical Subcommittee Report: Take Action Limits (TAL) for SAC305 Lead Free Automated Soldering...
At present there are a large number of materials that have been proposed as replacements for lead containing solder for reflow and wave and selective soldering.
Unlike solder paste in a reflow
.. read more
Bridging Supply Chain Gap for Exempt High-Reliability OEM’s
RoHS exempt high reliability OEMs breathed a sign of relief for not having to go through the grind of revising their processes and material to be RoHS compliant. However,this was short lived be
.. read more
Black Pad and Revisiting Methodologies
Society today relies on electronic devices that influence every aspect of our lives,such as communication,transportation,computing,home appliances,and recreation. The reliability of any electro
.. read more
Effects of Reflow Profile and Thermal Shock on Intermetallic Compound Thickness for SnPb and SnAgCu Solder Joints
During the solder reflow processes many reactions occur. There is the reduction of oxides on the metal surfaces,metal dissolution,wetting to different surfaces,and intermetallic compound format
.. read more
A Method to Evaluate PCBA Suppliers’ Pb Free vs. Leaded Processes for Telecom
The purpose of this program was to evaluate the solder joint reliability,using the IPC-9701 standard as a guideline,of PCBAs that were assembled with conventional leaded and ROHS compliant lead
.. read more
The New Lead Free Assembly Rework Solution Using Low Melting Alloys
This paper describes a new lead-free SMT rework process which avoids component overheating,reduces board warpage and cratering,and prevents adjacent components from thermal damage. In the repla
.. read more
Novel SACX Solders with Drop Test Performance Outperforming Eutectic Tin-Lead
A family of SACX alloys has been developed with significant improvement in drop test performance on NiAu surface finish. Dopants such as Mn,Bi,Ti,Ce,and to a less extent Y for SAC105 have been
.. read more
Deposition of Gold and Silver Surface Finishes Using Organic-Based Solutions
A novel electrochemical plating process for depositing gold and silver surface finishes using environmentally benign,
organic-based solutions as the plating bath is being investigated. The plat
.. read more
A Microvia Damage Model
An electrical model of a thermally damaged microvia has been constructed incorporating observations from electrical test, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy
.. read more
High Resolution Physical Analyses of Microvia - Target Pad Interfaces
Open circuit failure in microvias is an important issue for critical device reliability yet remains poorly understood. Separations at the microvia-target pad interface caused by board-normal
.. read more
Solder Joint Embrittlement Mechanisms,Solutions and Standards
The change to lead-free solders in electronic assemblies created a need to replace tin-lead solderable termination finishes with materials such as pure tin or soft gold,on electronic component
.. read more
Influence of Salt Residues on BGA Head in Pillow
The oxide layers are known as wetting inhibitors in component and PCB metallizations. The oxide acts as barrier that prevent the tin diffusion from happening. Besides,in corrosion studies,the r
.. read more
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
Is the ENIG Process Evil,or is it Maybe QA,Engineer or Sales Guy?
The case of processing issues with Electroless Nickel/Immersion Gold (ENIG) is well documented,even as it endures as a very popular surface finish. Certainly the market says that quality ENIG h
.. read more
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
.. read more
Drop Testing of a Pb-Free Board after Assembly and SnPb-Rework
•Board-level drop shock test was performed on 9 assemblies
–63 parts / board
–Parts representative of military package styles
•Assembled on Pb-free compatible laminate with SAC 305 solder
•Sele
.. read more
Comparison of the Electrochemical and Physical Properties of Nanocrystalline Copper Deposition in the Fabrication of Printed Wiring Boards
Typical electrodeposition of conventional metals produces deposits that are polycrystalline in nature,comprised of many crystal grains separated by grain boundaries. Adding grain refiners to a
.. read more
Copper Tin Intermetallic Crystals and Their Role in the Formation of Microbridges between the Leads of Hand Reworked Fine Pitch...
Wave soldering is a mature manufacturing process that metallurgically joins component and PWB termination features by
passing them together across the flowing surface of a molten solder reservo
.. read more
IPC Solder Products Value Council (SPVC) Lead-Free Technical Subcommittee Report: Take Action Limits (TAL) for SAC305 Lead Free Automated Soldering...
At present there are a large number of materials that have been proposed as replacements for lead containing solder for reflow and wave and selective soldering.
Unlike solder paste in a reflow
.. read more
Bridging Supply Chain Gap for Exempt High-Reliability OEM’s
RoHS exempt high reliability OEMs breathed a sign of relief for not having to go through the grind of revising their processes and material to be RoHS compliant. However,this was short lived be
.. read more
Black Pad and Revisiting Methodologies
Society today relies on electronic devices that influence every aspect of our lives,such as communication,transportation,computing,home appliances,and recreation. The reliability of any electro
.. read more
Effects of Reflow Profile and Thermal Shock on Intermetallic Compound Thickness for SnPb and SnAgCu Solder Joints
During the solder reflow processes many reactions occur. There is the reduction of oxides on the metal surfaces,metal dissolution,wetting to different surfaces,and intermetallic compound format
.. read more
A Method to Evaluate PCBA Suppliers’ Pb Free vs. Leaded Processes for Telecom
The purpose of this program was to evaluate the solder joint reliability,using the IPC-9701 standard as a guideline,of PCBAs that were assembled with conventional leaded and ROHS compliant lead
.. read more
The New Lead Free Assembly Rework Solution Using Low Melting Alloys
This paper describes a new lead-free SMT rework process which avoids component overheating,reduces board warpage and cratering,and prevents adjacent components from thermal damage. In the repla
.. read more
Novel SACX Solders with Drop Test Performance Outperforming Eutectic Tin-Lead
A family of SACX alloys has been developed with significant improvement in drop test performance on NiAu surface finish. Dopants such as Mn,Bi,Ti,Ce,and to a less extent Y for SAC105 have been
.. read more
Deposition of Gold and Silver Surface Finishes Using Organic-Based Solutions
A novel electrochemical plating process for depositing gold and silver surface finishes using environmentally benign,
organic-based solutions as the plating bath is being investigated. The plat
.. read more