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 | 2023-09-07 14:38:31.0
A repeat customer specializing in high-technology interconnect, sensor, and antenna solutions, partnered with us to dispense small volumes of solder paste (Indium 10.1 SAC305 T6SG 78%m) onto backplane connectors – gold pads 0.175mm x 0.225mm. We performed a test requiring 0.200mm diameter or smaller dots to demonstrate the dispensing capability required.
Training Courses | | | IPC/WHMA-A-620 Specialist (CIS)
The Certified IPC/WHMA-A-620 Specialist (CIS) training focuses on cable and wire harness fabrication and installation.
New Equipment | Rework & Repair Equipment
Flat Shockproof Vulcan Spudger SH-80 Double Beveled and Conical Ends. (6" x 1/4") The unique Beau Tech spudgers are made of special vulcanized fiber which has the most desirable mechanical, electrical, and thermal properties for appl
New Equipment | Rework & Repair Equipment
The unique Beau Tech spudgers are made of special vulcanized fiber which has the most desirable mechanical, electrical, and thermal properties for applications on printed circuit boards. Beau Tech spudgers have many advantages compared with nylon/fib
Industry News | 2003-06-04 09:19:23.0
With increasing demand for fine pitch placements and a growing amount of fast turnaround high-tech low-volume prototype work, Speedboard has invested in additional SMT/BGA placement/rework equipment.
Industry News | 2020-02-25 12:51:11.0
MIRTEC will exhibit at the SMTA Dallas and Houston Expo & Tech Forums. The Dallas Expo is scheduled to take place Tuesday, March 24, 2020 at the Plano Event Center in Plano, TX, and the Houston Expo will be held Thursday, March 26, 2020 at The Stafford Centre in Stafford, TX.
Industry News | 2003-03-11 08:45:00.0
CAMtastic DXP is the latest version of Altium's complete CAM verification and editing system that bridges the gap between PCB design and manufacturing and facilitates communication between board designers, fabrication engineers, and their clients.
Technical Library | 2021-01-03 19:24:52.0
Reflow soldering is the primary method for interconnecting surface mount technology (SMT) applications. Successful implementation of this process depends on whether a low defect rate can be achieved. In general, defects often can be attributed to causes rooted in all three aspects, including materials, processes, and designs. Troubleshooting of reflow soldering requires identification and elimination of root causes. Where correcting these causes may be beyond the reach of manufacturers, further optimizing the other relevant factors becomes the next best option in order to minimize the defect rate.
Industry News | 2018-01-28 19:18:11.0
MIRTEC, “The Global Leader in Inspection Technology,” will premier its complete line of 3D AOI and SPI Inspection Systems in Booth #1327 at the 2018 IPC APEX EXPO. The premier technical conference and exhibition for the electronics manufacturing industry will take place February 27th- March 1st, 2018 at the San Diego Convention Center.
