Industry Directory | Manufacturer
Design and Manufacture Desiccant Dry Cabinets for low humidity storage and baking of moisture sensitive components, PCBs, electronic materials, lab samples, digital media and medical devices.
Industry Directory | Consultant / Service Provider / Manufacturer / Other
Taiwan Dry Tech Corp. manufacturer of Eureka Dry Tech Fast Super Dryers for moisture/humidity proof protective storage of PCB, MSD, IC packages, meets IPC/JEDEC J-STD-033 & IPC-1601.
New Equipment | Rework & Repair Equipment
BEST HeatShield Gel™ is a thermal shield water-based gel designed to be used in the PCB rework/repair or board assembly areas in order to provide thermal protection of electronic components. It is truly a revolutionary means to protect components. It
Please visit our main microsectional analysis page for more information. Process Sciences uses microsection for both failure analysis and process validation. Our cross sections reveal intermetallic layers, defects, and other physical characteristic
Electronics Forum | Mon Sep 18 18:17:56 EDT 2017 | chintan
IS there an IPC standard or equivalent which specifies the maximum thickness of intermetallic compounds (IMC) in a reliable solder joint?
Electronics Forum | Thu Nov 03 13:35:46 EST 2005 | Amol
the copper forms intermetallics with tin to get Cu3Sn and Cu6Sn5. thus intermetallics formation consumes Cu and depends upon the cooling rate, faster the cooling rate, lesser the intermetallic formation
Industry News | 2018-04-09 19:48:04.0
SMTA Europe announces Session 1 Technical Program on Predicting Component Life at the “Electronics in Harsh Environments Conference” to be held in Amsterdam, Netherlands, on April 25th, 2018.
Industry News | 2018-10-18 09:42:39.0
SMT reflow oven process principle and introduction
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 | 2017-06-13 17:14:59.0
For tin-rich solder alloys, 200 C (392 F) is an extreme temperature. Intermetallic growth in tin-copper systems is known to occur and is believed to bear a direct relationship to failure mechanisms. This study of morphological changes with time at elevated temperatures was made to determine growth rates of tin-copper intermetallics. Preferred growth directions, rates of thickening, and notable changes in morphology were observed.Each of four tin-base alloys was flowed on copper and exposed to temperatures between 100 C and 200 C for time periods of up to 32 days. Metallographic sections were taken and the intermetallics were examined. Intermetallic layer thickening is characterized by several distinct stages. The initial growth of side plates is extremely rapid and exaggerated. This is followed by retrogression (spheroidization) of the elongated peaks and by general thick-
A technology that identifies the intermetallic compound formation, enables the system to provide closed loop feedback to the operator and validates the condition of the solder joint. This technology works in conjunction with SmartHeat® and patented C
Events Calendar | Wed Mar 18 00:00:00 EDT 2020 - Wed Mar 18 00:00:00 EDT 2020 | College Park, Maryland USA
CALCE Reliability Science Symposium - Spring 2020
Career Center | Milpitas, California USA | Clerical,Production,Quality Control,Research and Development,Technical Support
Winslow Automation, Inc. (aka Six Sigma), an industry leader in electronic component interconnect technology & related test and failure analysis services, is seeking a ‘hands on’ Materials Engineer to join our Test services team. This individual wi
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
SMTnet Express February 28, 2013, Subscribers: 26214, Members: Companies: 13305, Users: 34373 Effect of Cooling Rate on the Intermetallic Layer in Solder Joints While it has long been known that the Cu6Sn5 intermetallic that plays a critical role
SMTnet Express, January 23, 2014, Subscribers: 26486, Members: Companies: 13559, Users: 35667 Testing Intermetallic Fragility on Enig upon Addition of Limitless Cu by Martin K. Anselm, Ph.D. and Brian Roggeman; Universal Instruments Corp
