Industry Directory | Other / Consultant / Service Provider / Distributor / Manufacturer
Ludee Circuits offer RoHS PCB.We could offer leadfree HASL,Entek, flash gold, immersion gold, immersion silver, immersion tin finishing based on standard FR-4, CEM-3 materials, Teflon, Rogers RO4000 series, as well as high Tg S1170 materials.
Industry Directory | Manufacturer
2Layers - 18Layers ;HASL, OSP, Gold plating, immersion Gold/Silver/Tin, removable mask, gold-finger, carbon ink;Conact Person:Rene E-mail:rene@speedingcircuit.com Website:www.speedingcircuit.com
New Equipment | Surface Finish
Technic supplies precious metal and tin and tin alloyed products that are used to preserve as well as enhance soldering and bonding through all levels of interconnection. Technic is well established as a leader in Final Finish Solutions for printed
New Equipment | Assembly Services
PNC Inc. has been manufacturing hi-reliability printed circuit boards since 1968. All Military Spec PC boards are manufactured in the security of our Nutley NJ, USA facility. PNC is certified by the Department of Defense to Military Performance Speci
Industry News | 2013-08-07 09:58:46.0
The SMTA launched an online re-certification program for engineers whose 10-year SMT Processes Certification is expiring.
Industry News | 2012-05-04 09:21:15.0
As printed boards evolve and chip speeds increase, the use of microwave technology in commercial applications, such as cell phone towers and in military products, is expanding.
Technical Library | 2016-07-07 15:37:18.0
How susceptible are the metals used in modern electronics manufacturing to corrosion by common beverages? This is a question of interest, especially to manufacturers, retailers and to a certain extent end customers. In this study the dissolution of aluminum, copper, gold, iron, lead, nickel, SAC305 solder, silver, tin and zinc was examined. Individual foils of these materials were fully immersed in one of sixteen chosen beverages and heated for 3 days at 40°C. The resulting solutions were analyzed using ICP-OES. The data were examined in light of the known pH, conductivity and ionic contents of the beverages, determined in previous work. Conclusions about the relative susceptibility to corrosion of the various metals and the corrosive power of the different beverages are made.
Technical Library | 2018-07-11 22:46:13.0
For a demanding automotive electronics assembly, a highly thermal fatigue resistant solder alloy is required, which makes the lead-free Sn-Ag-Cu type solder alloy unusable. Sn-Ag-Bi-In solder alloy is considered as a high reliability solder alloy due to significant improvement in thermal fatigue resistance as compared to a standard Sn-Ag-Cu alloy. The alloy has not only good thermal fatigue properties but it also has superior ductility and tensile strength by appropriate addition of In; however, initial results indicated a sub-par performance in joint reliability when it is soldered on a printed circuit board (PCB) with Electroless Nickel Immersion Gold (ENIG) surface finish. Numerous experiments were performed to find out appropriate alloying element which would help improve the performance on ENIG PCBs. Sn-Ag-Bi-In solder alloys with and without Cu additions were prepared and then tests were carried out to see the performance in a thermal fatigue test and a drop resistance test.to investigate the impact of Cu addition towards the improvement of joint reliability on ENIG finish PCB. Also, the mechanism of such improvement is documented.
SMTnet Express, April 11, 2019, Subscribers: 31,842, Companies: 10,737, Users: 25,981 Soldering Immersion Tin Credits: Atotech The stimulating impact of the automotive industry has sharpened focus on immersion tin (i-Sn) more than ever before
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc-standards-for-manufacturing-assembly_topic877_post9030.html
) Plating for Printed Ciruit Boards IPC-4553 - Specification for Immersion Silver Plating for Printed Ciruit Boards IPC-4554 - Specification for Immersion Silver Tin for Printed Ciruit Boards IPC-4562
Surface Mount Technology Association (SMTA) | https://www.smta.org/certification/recertification.cfm
. James Hall are divided into 11 modules each with slides and a quiz on the following updated topics: PCB Basics and Surface Finishes like HASL and ENIG Surface Finishes like OSP, Immersion Tin, Immersion Silver Paste, stencils, printing and how they are interrelated Component placement with a focus
