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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
New Equipment | Solder Materials
8 hours), and abandon time (>4 hours) Printing: Suitable for high speed printing up to 150 mm/s Reflow: Solderable on challenging surface finishes (CuNiZn and Copper OSP) Colorless residues for easy post-reflow inspection Careful contr
Electronics Forum | Tue Sep 26 20:19:51 EDT 2000 | Dave F
Never heard of N-Tech. Whose material do they use? Two common materials are: Imidazole (Via Systems) and Entek (Enthone) OSP is a lacquer that fabs apply to boards by either spraying or dipping. What thickness control does your fab use? For inst
Electronics Forum | Thu Aug 31 12:17:56 EDT 2000 | mike weekes
We are considering alternative Board Finishes to our existing HASL process. The HASL effects opens on 25 and 20 mil packages after reflow and we know if the advantages of CuOSP and other alternatives. OUR Concern: Is there a shelf life and handlin
Industry News | 2018-06-03 19:11:33.0
SHENMAO America, Inc. is exhibiting at the 2018 IEEE 68th Electronic Components and Technology Conference (ECTC), taking place May 29 - June 1, 2018 at the Sheraton San Diego Hotel & Marina. SHENMAO plans to showcase its new PF906-S and PF912-S solder alloys, and SMF-WC53 Water-Soluble / Cu-OSP Pad Ball Attach Flux.
Industry News | 2025-09-15 11:21:44.0
SHENMAO TECHNOLOGY is pleased to introduce SMF-WC58, a water-soluble, halogen-free tacky flux developed for ultra-fine bump pitch flip-chip and BGA/CSP attach processes.
Technical Library | 2021-08-25 16:28:36.0
In this study, a Sn–Bi composite solder paste with thermosetting epoxy (TSEP Sn–Bi) was prepared by mixing Sn–Bi solder powder, flux, and epoxy system. The melting characteristics of the Sn–Bi solder alloy and the curing reaction of the epoxy system were measured by differential scanning calorimeter (DSC). A reflow profile was optimized based on the Sn–Bi reflow profile, and the Organic Solderability Preservative (OSP) Cu pad mounted 0603 chip resistor was chosen to reflow soldering and to prepare samples of the corresponding joint. The high temperature and humidity reliability of the solder joints at 85 #14;C/85% RH (Relative Humidity) for 1000 h and the thermal cycle reliability of the solder joints from
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.
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applied to exposed Cu connectors and conductors on
Surface Mount Technology Association (SMTA) | https://www.smta.org/icsr/speaker_forms/Paper-Format-Requirements.doc
experiments in this study were performed on an OSP finished board. Finishes such as OSP which do not have a nickel later represent the worst case scenario with respect to Cu dissolution. An OEM server product was used as the test vehicle throughout this study
Imagineering, Inc. | https://www.pcbnet.com/quote/board-quote-usa/
* Materials FR4(130Tg) FR4(170Tg) FR4(180Tg) from Taiwan or China Copper Weight 1 oz 2 oz 3 oz 4 oz Cu from Taiwan or China Finish Plating ENIG1U" (Immersion Gold) HASL (Leaded
