Technical Library | 2021-10-20 18:21:06.0
The solderability of the SAC305 alloy in contact with printed circuit boards (PCB) having different surface finishes was examined using the wetting balance method. The study was performed at a temperature of 260 _C on three types of PCBs covered with (1) hot air solder leveling (HASL LF), (2) electroless nickel immersion gold (ENIG), and (3) organic surface protectant (OSP), organic finish, all on Cu substrates and two types of fluxes (EF2202 and RF800). The results showed that the PCB substrate surface finish has a strong effect on the value of both the wetting time t0 and the contact angle h. The shortest wetting time was noted for the OSP finish (t0 = 0.6 s with EF2202 flux and t0 = 0.98 s with RF800 flux), while the ENIG finish showed the longest wetting time (t0 = 1.36 s with EF2202 flux and t0 = 1.55 s with RF800 flux). The h values calculated from the wetting balance tests were as follows: the lowest h of 45_ was formed on HASL LF (EF2202 flux), the highest h of 63_ was noted on the OSP finish, while on the ENIG finish, it was 58_ (EF2202 flux). After the solderability tests, the interface characterization of cross-sectional samples was performed by means of scanning electron microscopy coupled with energy dispersive spectroscopy.
New Equipment | Solder Materials
Indium Corporation manufactures high quality solder powders and pastes. Powders are available in hundreds of alloys and a full range of sizes. Solder pastes can be made from these powders using a wide variety of flux vehicles to get the best fit for
Industry News | 2009-01-22 21:36:56.0
OSAKA, JAPAN � January 2009 � Nihon Superior Co. Ltd., an advanced soldering and brazing supplier to the worldwide market, introduces SN100C(510) lead-free flux cored solder wire.
.jpg)
New Equipment | Solder Materials
LOCTITE GC 10 is a halogen free, zero halogens added, no-clean, low voiding, Pb-free solder paste specially formulated to provide added long term stability over a wide range of temperature conditions. The enhanced paste stability created through its
Technical Library | 2015-11-25 14:15:12.0
In this study various printed circuit board surface finishes were evaluated, including: organic solderability preservative (OSP), plasma finish (PF), immersion silver (IAg), electroless nickel / immersion silver (ENIS), electroless nickel / immersion gold hi-phosphorus (ENIG Hi-P), and electroless nickel / electroless palladium / immersion gold (ENEPIG). To verify the performance of PF as a post-treatment option, it was added to IAg, ENIG Hi-P, and ENEPIG to compare with non-treated. A total of nine groups of PCB were evaluated. Each group contains 30 boards, with the exception on ENIS where only 8 boards were available.
Place of Origin: Guangdong, China (Mainland) Brand Name: Sunsoar/Customized Model Number: Circuit pcb board Base Material: PI/PET Copper Thickness: 0.5-5 OZ Board Thickness: 0.08mm-6.4mm Min. Hole Size: 0.25mm Min. Line Width: 0.10 Min. Line
New Equipment | Fabrication Services
6 Layer Rigid-Flex PCB Material: FR-4(KB)+Polyimide(DuPont) No of layer: 6 Layer Board thickness: 1.6mm Copper thickness: 35um/1oz Surface finishing: ENIG, gold 0.05-0.1um, Nickel 3-5um Solder mask: Matt Green Other technology: FR-4 Stiffner
New Equipment | Coating Materials
Technic Releases TechniFlex LCL1000F/423M New Flexible Black Soldermask for Direct Imaging Cranston, RI, USA - Technic has announced the release of TechniFlex LCL1000F/423M, an extremely durable, direct imaging, fine pitch, matte black solder mask
New Equipment | Fabrication Services
High frequency RF, Microwave Printed Circuit Board Design, FAB PNC can provide you with your High Frequency RF PCB and Microwave PCB needs. Our advanced Technologies have made us a leader in the RF/Microwave PCB industry processing FR4 and Rogers Ma
Industry News | 2010-09-29 02:16:12.0
STI Electronics, Inc., a full service organization providing training, electronic and industrial distribution, consulting, laboratory analysis, prototyping, and small- to medium-volume PCB assembly, announces that its Fine-Pitch SMT Kit is now available in both lead-free and tin-lead versions. The lead-free component option is available with the ENIG board finish.
