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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Implementing Quality and Reliability on the Assembly Line
Many will look to IPC standards for advice or workmanship requirements for electronic assemblies. Some will find a copy of IPC-A-610 Acceptability of Electronic Assemblies and stop there. But I
.. read more
Future Lead-Free Solder Alloys and Fluxes – Meeting Challenges of Miniaturization
Flux technology for lead-free alloys differs considerably from that for eutectic Sn/Pb solder systems,mainly for soldering and cleaning purpose. For most of the lead-free solders,paste handling
.. read more
Application Research of Snap Curing CSP Underfill
CSP underfill commonly acts to protect solder bumps of fine pitch CSP and enhances the reliability. This paper presents four snap curing underfills (=2min@150?or=5min@120?),tested on SnPb assem
.. read more
Impact of Hole-Fill and Voiding on Pin Through-Hole Solder Joint Reliability
In this study,thermal cycling tests for samples of different hole-fill percentages and voiding were conducted,and cross sections of the PTH solder joints were performed to evaluate the solder m
.. read more
Process Development with Temperature Sensitive Components in Server Applications
As the electronics industry prepares for the possibility of Pb-free Printed Circuit Board Assembly (PCBA) processing without the EU RoHS server Pb solder exemption,many studies continue to focu
.. read more
The Advantages of Mildly Alkaline Immersion Silver as a Final Finish for Solderability
The immersion silver process has become the first choice of final finishing for many original equipment manufacturers (OEM) because of its shortened process flow,good conductivity,even depositi
.. read more
Large and Thick Board Lead-Free Wave Soldering Optimization
This paper presents the results of our study on the development and optimization of lead-free wave soldering process for large and thick printed circuit boards (PCB),through multiple designs of
.. read more
The Utilization of X-ray to Effectively Test Quad Flat No-Lead Packages
The Quad Flat No-Lead or QFN packages are increasing in their utilization in the printed circuit board market. This is being driven largely by the shrinking size both in profile and footprint,h
.. read more
Performance of China Alloy SnAgCuCe in Reflow Soldering
Work on assisting China's Ministry of Information Industry (MII) to assess the performance of a solder paste using the China alloy Sn3.0Ag0.5Cu0.019Ce (SACCe) was completed. Two Indium fluxes w
.. read more
Performance of China Alloy SnAgCuCe in Reflow Soldering
Work on assisting China's Ministry of Information Industry (MII) to assess the performance of a solder paste using the China alloy Sn3.0Ag0.5Cu0.019Ce (SACCe) was completed. Two Indium fluxes w
.. read more
The Effect of Filling VIA-In-Pad-On Voiding Rates in PWB Assembly for BGA Components
The debate on the effect of voiding on BGA reliability has continued for years. Many PWB assemblers strive to minimize
voiding,particularly with the advent of lead-free processing and in fine f
.. read more
Effect of Voiding on Lead Free Reliability
This paper had as an aim to correlate the degree of voiding with reliability. Here the a purpose designed test vehicle was
used,in which seven different solder pastes from three manufacturers w
.. read more
Effect of Voiding on Solder Joint Shock and Thermal Cycle Reliability
Solder joint void has been considered a typical phenomenon in electronics assembly. Voids are caused by entrapped gases
produced during flux volatilization during SMT,air entrapment in plated t
.. read more
Dynamics in Lead-Free Wave Soldering
The following report is fundamentally focused on how three popular lead-free alloys react in a wave solder application. The alloys were SAC305,SAC405 and a proprietary,low silver SAC alloy. In
.. read more
Optimizing Your Reflow Profile for Maximum Productivity and Profitability
Successful reflow soldering is a key to productivity and profitability,yet many assemblers may be using a nonoptimized
reflow profile.
Years ago,when IR ovens were the norm and solder pastes we
.. read more
PCB Materials Behaviours towards Humidity and Impact of the Design,Finishes,Baking and Assembly Processes on Assembly Quality and Solder Joint Reliability
As Electrostatic discharge,humidity can have a bad impact on assembly quality. It requires environmental conditions and
process controls but also risks knowledge. To overcome humidity issue,par
.. read more
Lead-Free Solder Bumping Technologies
Electroplated pure tin and tin alloys such as Sn99.3Cu0.7%,Sn98%Bi2% and Sn96.5%Ag3.5% have been identified as
viable drop-in replacements to tin-lead solder. High melting point tin alloys such
.. read more
The Effect of Via-in-Pad Via-Fill on Solder Joint Void Formation
Fabricators,and the copper plating process they choose,can have considerable influence on their customers' solder joint
reliability. In the case of high density assemblies,via-in-pad designs of
.. read more
Capabilities of Tools Used to Measure Voids to Industry Standards
It is stated that some degree of voiding is acceptable and inevitable when soldering electronic components,and
specifically BGAs. There have been many publications which discuss this phenomena,
.. read more
Real-Life Tin-Silver-Copper Alloy Processing
The world is stating to focus on tin-silver copper as the lead-free alloy of choice. This paper discusses the
commercially available tin-silver-copper alloys and their processing and reliabilit
.. read more
Implementing Quality and Reliability on the Assembly Line
Many will look to IPC standards for advice or workmanship requirements for electronic assemblies. Some will find a copy of IPC-A-610 Acceptability of Electronic Assemblies and stop there. But I
.. read more
Future Lead-Free Solder Alloys and Fluxes – Meeting Challenges of Miniaturization
Flux technology for lead-free alloys differs considerably from that for eutectic Sn/Pb solder systems,mainly for soldering and cleaning purpose. For most of the lead-free solders,paste handling
.. read more
Application Research of Snap Curing CSP Underfill
CSP underfill commonly acts to protect solder bumps of fine pitch CSP and enhances the reliability. This paper presents four snap curing underfills (=2min@150?or=5min@120?),tested on SnPb assem
.. read more
Impact of Hole-Fill and Voiding on Pin Through-Hole Solder Joint Reliability
In this study,thermal cycling tests for samples of different hole-fill percentages and voiding were conducted,and cross sections of the PTH solder joints were performed to evaluate the solder m
.. read more
Process Development with Temperature Sensitive Components in Server Applications
As the electronics industry prepares for the possibility of Pb-free Printed Circuit Board Assembly (PCBA) processing without the EU RoHS server Pb solder exemption,many studies continue to focu
.. read more
The Advantages of Mildly Alkaline Immersion Silver as a Final Finish for Solderability
The immersion silver process has become the first choice of final finishing for many original equipment manufacturers (OEM) because of its shortened process flow,good conductivity,even depositi
.. read more
Large and Thick Board Lead-Free Wave Soldering Optimization
This paper presents the results of our study on the development and optimization of lead-free wave soldering process for large and thick printed circuit boards (PCB),through multiple designs of
.. read more
The Utilization of X-ray to Effectively Test Quad Flat No-Lead Packages
The Quad Flat No-Lead or QFN packages are increasing in their utilization in the printed circuit board market. This is being driven largely by the shrinking size both in profile and footprint,h
.. read more
Performance of China Alloy SnAgCuCe in Reflow Soldering
Work on assisting China's Ministry of Information Industry (MII) to assess the performance of a solder paste using the China alloy Sn3.0Ag0.5Cu0.019Ce (SACCe) was completed. Two Indium fluxes w
.. read more
Performance of China Alloy SnAgCuCe in Reflow Soldering
Work on assisting China's Ministry of Information Industry (MII) to assess the performance of a solder paste using the China alloy Sn3.0Ag0.5Cu0.019Ce (SACCe) was completed. Two Indium fluxes w
.. read more
The Effect of Filling VIA-In-Pad-On Voiding Rates in PWB Assembly for BGA Components
The debate on the effect of voiding on BGA reliability has continued for years. Many PWB assemblers strive to minimize
voiding,particularly with the advent of lead-free processing and in fine f
.. read more
Effect of Voiding on Lead Free Reliability
This paper had as an aim to correlate the degree of voiding with reliability. Here the a purpose designed test vehicle was
used,in which seven different solder pastes from three manufacturers w
.. read more
Effect of Voiding on Solder Joint Shock and Thermal Cycle Reliability
Solder joint void has been considered a typical phenomenon in electronics assembly. Voids are caused by entrapped gases
produced during flux volatilization during SMT,air entrapment in plated t
.. read more
Dynamics in Lead-Free Wave Soldering
The following report is fundamentally focused on how three popular lead-free alloys react in a wave solder application. The alloys were SAC305,SAC405 and a proprietary,low silver SAC alloy. In
.. read more
Optimizing Your Reflow Profile for Maximum Productivity and Profitability
Successful reflow soldering is a key to productivity and profitability,yet many assemblers may be using a nonoptimized
reflow profile.
Years ago,when IR ovens were the norm and solder pastes we
.. read more
PCB Materials Behaviours towards Humidity and Impact of the Design,Finishes,Baking and Assembly Processes on Assembly Quality and Solder Joint Reliability
As Electrostatic discharge,humidity can have a bad impact on assembly quality. It requires environmental conditions and
process controls but also risks knowledge. To overcome humidity issue,par
.. read more
Lead-Free Solder Bumping Technologies
Electroplated pure tin and tin alloys such as Sn99.3Cu0.7%,Sn98%Bi2% and Sn96.5%Ag3.5% have been identified as
viable drop-in replacements to tin-lead solder. High melting point tin alloys such
.. read more
The Effect of Via-in-Pad Via-Fill on Solder Joint Void Formation
Fabricators,and the copper plating process they choose,can have considerable influence on their customers' solder joint
reliability. In the case of high density assemblies,via-in-pad designs of
.. read more
Capabilities of Tools Used to Measure Voids to Industry Standards
It is stated that some degree of voiding is acceptable and inevitable when soldering electronic components,and
specifically BGAs. There have been many publications which discuss this phenomena,
.. read more
Real-Life Tin-Silver-Copper Alloy Processing
The world is stating to focus on tin-silver copper as the lead-free alloy of choice. This paper discusses the
commercially available tin-silver-copper alloys and their processing and reliabilit
.. read more