Electronics Forum: edward and dowling (1)

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Tue Nov 06 22:37:35 EST 2012 | davef

Ryan ... "As for bismuth-based lead-free alloys, a lower melting temperature than that of tin-lead is offered together with a cost similar to that of tin [in the area of $3/lb]. Unfortunately, bismuth in soldering alloys tends to create embrittlemen

Industry News: edward and dowling (9)

iNEMI, SMTA, MEPTEC and OregonBio to Co-Host Medical Electronics Symposium

Industry News | 2014-03-27 14:15:48.0

The 9th Annual Medical Electronics Symposium will be held at Marylhurst University near Portland, Oregon, on September 18-19, 2014. SMTA, iNEMI, MEPTEC and OregonBio have joined forces to host this year’s international symposium, which will focus on advances in electronic technologies and advanced manufacturing, specifically targeting medical and bioscience applications.

Surface Mount Technology Association (SMTA)

Volunteers Honored for Contributions to Electronics Industry and IPC More than 80 Awards Presented at IPC Midwest

Industry News | 2012-08-22 15:57:01.0

IPC – Association Connecting Electronics Industries® presented Special Recognition, Distinguished Committee Leadership and Committee Service Awards at IPC Midwest Conference & Exhibition

Association Connecting Electronics Industries (IPC)

Technical Library: edward and dowling (3)

Advantages of Bismuth-based Alloys for Low Temperature Pb-Free Soldering and Rework

Technical Library | 2012-12-20 14:36:09.0

The increased function of personal electronic devices, such as mobile phones and personal music devices, has driven the need for smaller and smaller active and passive components. This trend toward miniaturization, occurring at the same time as the conversion to RoHS-compliant lead-free assembly, has been a considerable challenge to the electronics assembly industry. The main reason for this is the higher reflow process temperatures required for Pb-free assembly. These higher temperatures can thermally damage the PCB and the components. In addition, the higher reflow temperatures can negatively affect the solder joint quality, especially when coupled with the smaller paste deposits required for these smaller components. If additional thermal processing is required, the risk increases even more. First Published at SMTA's International Conference on Soldering and Reliability in Toronto, May 2011

Indium Corporation

PCB Fabrication Processes and Their Effects on Fine Copper Barrel Cracks

Technical Library | 2015-12-23 16:57:27.0

The onset of copper barrel cracks is typically induced by the presence of manufacturing defects. In the absence of discernible manufacturing defects, the causes of copper barrel cracks in printed circuit board (PCB) plated through holes is not well understood. Accordingly, there is a need to determine what affects the onset of barrel cracks and then control those causes to mitigate their initiation.The objective of this research is to conduct a design of experiment (DOE) to determine if there is a relationship between PCB fabrication processes and the prevalence of fine barrel cracks. The test vehicle used will be a 16-layer epoxy-based PCB that has two different sized plated through holes as well as buried vias.

Raytheon

Express Newsletter: edward and dowling (18)

Partner Websites: edward and dowling (786)


edward and dowling searches for Companies, Equipment, Machines, Suppliers & Information

Sm t t t t t t t t t t net
  1 2 3 4 5 6 7 8 9 10 Next
Circuit Board, PCB Assembly & electronics manufacturing service provider

World's Best Reflow Oven Customizable for Unique Applications
SMT feeders

High Precision Fluid Dispensers
SMT feeders

High Throughput Reflow Oven
design with ease with Win Source obselete parts and supplies

"回流焊炉"