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
Alloy: SAC 305, Mesh: -325+500, 250 gram Jar. Buy the jar, while supplies last.
Industry Directory | Manufacturer
Global soldering materials manufacturer founded in 1980 headquartered in IL. U.S.A. Products include: RoHS lead free solders + leaded, Metals Recycling Program, Solder Check Up Program, Technical Support. ISO 9001:2015 Certified
Technical Library | 2010-04-29 21:40:37.0
The purpose of this paper is to investigate the effects of reflow time, reflow peak temperature, thermal shock and thermal aging on the intermetallic compound (IMC) thickness for Sn3.0Ag0.5Cu (SAC305) soldered joints.
Technical Library | 2013-07-11 15:22:40.0
This research paper will focus on the effect of various parameters that are used to reball a BGA and their effect on the overall shear strength. Factors that will be looked at include the type of BGA (SAC305 or 63Sn/37Pb), the alloy used to reball (SAC405 or 63Sn/37Pb), the type of flux used (Water Soluble or No Clean), and the environment in which reballing takes place (Nitrogen or Ambient).
New Equipment | Solder Materials
LV05 no clean flux cored wire is designed for use in high throughput, high volume electronics assembly processes. LV05 demonstrates consistent, rapid wetting required for robotic and rework/hand soldering operations while leaving safe post-soldering
Industry News | 2021-06-08 03:45:26.0
SHENMAO America, Inc. is pleased to introduce its PF918-P250Thermal Fatigue Resistance Lead-free Solder Paste. The new paste is formulated with the new SHENMAO Sn/4Ag/3Bi Alloy design with high thermal impact reliability.
Industry News | 2022-03-14 08:20:37.0
SHENMAO America, Inc. is pleased to introduce its PF918-P250 Thermal Fatigue Resistance Lead-free Solder Paste. The new paste is formulated with the new SHENMAO Sn/4Ag/3Bi Alloy, which is designed with high thermal impact reliability for long service life electronic products with high-reliability requirements.
Industry News | 2022-08-26 09:15:23.0
SHENMAO America, Inc. will exhibit at the SMTA Guadalajara Expo & Tech Forum, scheduled to take place Sept. 21-22, 2022, at the Expo Guadalajara in Jalisco, Mexico. The company will showcase its PF918-P250 Thermal Fatigue Resistance Lead-free Solder Paste. The new paste can increase thermal reliability performance by a minimum of 30 percent.
New Equipment | Solder Materials
The MULTICORE portfolio of cored solder wire features the award-winning multiple flux core technology that ensures the even and consistent distribution of flux throughout the solder wire. This mainstay in Henkel’s line of solder products delivers eas
