Industry Directory | Manufacturer
Rommtech-3S is your partner for reliable and cost effective contract manufacturing!have more than 15 years experience in the production of electronic and electromechanical devices � security products, radiators; cash registers manufacturing; igniters
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
New Equipment | Solder Materials
Tokyo, Japan – Koki Company Limited, global manufacturer and supplier of soldering materials, announces the release of new low Ag containing halogen free solder pastes that secures the equivalent joint reliability and heat profile to SAC305, namely S
Electronics Forum | Wed Sep 26 12:16:44 EDT 2012 | bwjm
Hi Guys,recently i am facing an issue. Refer to the attached photo. This PCB is high RF speed, gold immersion single layer. After reflow, my solder seems to have black stains on it. I tried with SAC305 paste water soluble and no-clean, both results a
Electronics Forum | Fri Apr 04 18:16:43 EDT 2014 | garym4569
We are in the process of launching a new product and found reflow solder issue with one of the inductors. I have set oven profile to paste specifications. I just finished profiling with thermocouple under problem component. All other components ex
Used SMT Equipment | Soldering - Wave
Siemens Siplace HS50,S23HM,S20,F5,F3 for sales immediately Dear All: My own SMT factory have the following SMT machines for immediately sales, all of the machines and accessories are working condition: 1#, Printer: MPM UP2000 Hie 2 sets
Industry News | 2018-10-18 08:36:26.0
How the modern solder reflow oven works?
Industry News | 2018-10-18 08:29:16.0
How to Prevent Short Circuits to Ground in QFN Components?
Technical Library | 2023-01-17 17:27:13.0
Reflow profile has significant impact on solder joint performance because it influences wetting and microstructure of the solder joint. The degree of wetting, the microstructure (in particular the intermetallic layer), and the inherent strength of the solder all factor into the reliability of the solder joint. This paper presents experimental results on the effect of reflow profile on both 63%Sn 37%Pb (SnPb) and 96.5%Sn 3.0%Ag 0.5%Cu (SAC 305) solder joint shear force. Specifically, the effect of the reflow peak temperature and time above solder liquidus temperature are studied. Nine reflow profiles for SAC 305 and nine reflow profiles for SnPb have been developed with three levels of peak temperature (230 o C, 240 o C, and 250 o C for SAC 305; and 195 o C, 205 o C, and 215 o C for SnPb) and three levels of time above solder liquidus temperature (30 sec., 60 sec., and 90 sec.). The shear force data of four different sizes of chip resistors (1206, 0805, 0603, and 0402) are compared across the different profiles. The shear force of the resistors is measured at time 0 (right after assembly). The fracture surfaces have been studied using a scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS)
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.
ALPHA® Preforms with solder paste adds solder volume.
SN100C P810 D4????????? ???????????? ??????????????????????????????????? ?????????????? ???http://www.nihonsuperior.co.jp/
Career Center | Rochester, New York USA | Engineering
I have done my undergraduate studies in Mechanical Engineering. I am pursuing my Master's Program in Electronics Packaging. I am currently working as a Research Assistant for RIT-CEMA (Center for Electronics Manufacturing and Assembly). My research
Career Center | Lakewood, California USA | Engineering,Maintenance,Management,Production
Quality conscience, detail oriented, manufacturing engineer, with a hands on approach to overall process improvement and development. Motivated with excellent communication skills and a dedicated team player. Qualifications include: � Safety /Diver
Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder As technology becomes increasingly reliant
SMTnet Express, Septemeber 1, 2016, Subscribers: 26,288, Companies: 14,937, Users: 41,025 Reliability Study of Low Silver Alloy Solder Pastes Jennifer Nguyen, David Geiger and Murad Kurwa; Flex (Flextronics International) Sn3.0Ag0.5Cu (SAC305
Heller Industries Inc. | https://hellerindustries.com/searchqueries/
? Reflow Soldering Problems Overview Causes & Defects – Reflow Soldering Solder Ball Defects Opensor Insufficient Solder Wicking Defects Tombstoning PCB Soldering PCB Bridging Defects PCB Dewetting PCB Nonwetting Circuit Board Voids PCB Delamination
| http://etasmt.com/cc?ID=te_news_industry,23964&url=_print
. Poor solder joint fillet -- ramp up too slow The flux lost its activity once it stayed soaking too long. Reflow zone (above 217°C ~220°C for SAC305 solder paste
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