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)
Used SMT Equipment | SMT Equipment
Product Name :Panasoinc NPM module Product number: two modules NPM Detailed product introduction 2D inspection head function of NPM tape coating machine: 1, NPM check head resolution: 9 m 2, NPM check head vision: 21.1 * 17.6mm 3, check proc
Used SMT Equipment | SMT Equipment
Product Name :Panasoinc NPM module Product number: two modules NPM Detailed product introduction 2D inspection head function of NPM tape coating machine: 1, NPM check head resolution: 9 m 2, NPM check head vision: 21.1 * 17.6mm 3, check proc
Used SMT Equipment | Screen Printers
DEK Horizon 03i automatic stencil printer Specification ： DEK Horizon 03i High Precision Automatic Solder Paste Printer designed for high precision steel mesh printing or stencil printing in SMT industry. Printing PCB size: 50x50mm to 508x510mm;
Used SMT Equipment | SMT Equipment
Product Name:Panasoinc high speed chip mounter NPM Product number: NPM1 Detailed product introduction NPM multifunction machine, SMT machine, machine with function function function, check the dispensing machine, is a multifunctional equipment
Used SMT Equipment | SMT Equipment
Product Name:Panasoinc high speed chip mounter NPM Product number: NPM1 Detailed product introduction NPM multifunction machine, SMT machine, machine with function function function, check the dispensing machine, is a multifunctional equipment
Events Calendar | Mon Apr 12 00:00:00 EDT 2021 - Mon Apr 12 00:00:00 EDT 2021 | ,
Europe Chapter Webinar: Tombstoning Components during Reflow Soldering - Causes & Cures
Used SMT Equipment | Flexible Mounters
Contact Systems Pick and Place Machine For Sale! Just came out of company in good working condition!! Includes about "80 feeders" of various sizes (TS Smart) and 4 feeder carts shown in pictures See attached pictures and information below Eq
Used SMT Equipment | AOI / Automated Optical Inspection
Hello and thank you for your interest in our MVP Machine Vision Products AOI Machines For Sale. We have a total of (4) MVP Automated Optical Inspection Machines and (2) Inspection Repair Stations.. They were taken off line due to company closer. All
Parts & Supplies | SPI / Solder Paste Inspection
Koh Young Calibration jig SPI /AOI CALIBRATION FEE CALIBRATION FEE NXT/XPF Feeder Calibration Jig ..NXT/XPF-FCS YV feeder calibration jig ..YV feeder calibration jig CL Feeder calibration ..YMH CL YAMAHA SS feeder calibration jig SS
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