Industry News: diffusion of gold in solder (4)

AIM Strengthens Its Support in Mexico with Appointment of SMarTsol Technologies

Industry News | 2012-05-14 13:23:58.0

AIM announces the appointment of SMarTsol Technologies S. de R.L. de C.V. as its representative in Mexico effective immediately.

AIM Solder

Technical Library: diffusion of gold in solder (6)

Eliminating Ni Corrosion in ENIG/ENEPIG Using Reduction-Assisted Immersion Gold in Place of Standard Immersion Gold

Technical Library | 2023-01-10 20:08:36.0

Nickel corrosion in ENIG and ENEPIG is occasionally reported; when encountered at assembly it manifests as soldering failures in ENIG and wire bond lifts in ENEPIG. Although not common, it can be highly disruptive, resulting in missed deliver schedules, supply chain disruption, failure analysis investigations, and liability - all very costly.

Uyemura International Corporation

Dissolution in Service of the Copper Substrate of Solder Joints

Technical Library | 2019-06-20 00:09:49.0

It is well known that during service the layer of Cu6Sn5 intermetallic at the interface between the solder and a Cu substrate grows but the usual concern has been that if this layer gets too thick it will be the brittleness of this intermetallic that will compromise the reliability of the joint, particularly in impact loading. There is another level of concern when the Cu-rich Cu3Sn phase starts to develop at the Cu6Sn5/Cu interface and an imbalance in the diffusion of atomic species, Sn and Cu, across that interface results in the formation at the Cu3Sn/Cu interface of Kirkendall voids, which can also compromise reliability in impact loading. However, when, as is the case in some microelectronics, the copper substrate is thin in relation to the volume of solder in the joint an overriding concern is that all of the Cu will be consumed by reaction with Sn to form these intermetallics.This paper reports an investigation into the kinetics of the growth of the interfacial intermetallic, and the consequent reduction in the thickness of the Cu substrate in solder joints made with three alloys, Sn-3.0Ag-0.5Cu, Sn-0.7Cu-0.05Ni and Sn-1.5Bi-0.7Cu-0.05Ni.

Nihon Superior Co., Ltd.

Express Newsletter: diffusion of gold in solder (1161)

Partner Websites: diffusion of gold in solder (415)

3 Key Benefits of Investing in Solder Training and IPC Certification

| https://www.eptac.com/blog/3-key-benefits-of-investing-in-solder-training-and-ipc-certification

3 Key Benefits of Investing in Solder Training and IPC Certification Looking for solder training standards, manuals, kits, and more

Solder Dictionary of Terms | Nordson EFD

ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms

. Compacting during solder paste dispensing, can be observed in the dispense tip and all other sections of the flow path.   Copper Mirror Test IPC–TM-650 2.3.32

ASYMTEK Products | Nordson Electronics Solutions


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