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 | Soldering - Selective
• Less then 100 hours • Stand-alone Machine • 2 Spray Nozzles/Programable • Dual Solder pots / Dual Heads – Loaded with SAC305 • Heads can run 4 different assembles • Pot level detection / Upgraded self-feeder • Automatic solder refill / Autom
Parts & Supplies | Assembly Accessories
Detailed Product Description Features: 7 Channel Brand: KIC Part Name: X5 Reflow Profiler Model: X5 Condition: Original New Leadtime: 7days KIC X5 Thermal Profiler with SPC software and RF capability For Reflow Track More Data Points With 7,
Parts & Supplies | SPI / Solder Paste Inspection
Quick programming, friendly programming interface Multiple measurement methods True one-button measurement Eight-way motion button, one-click focus Adjustable scanning pitch Solder paste 3D simulation function Powerful SPC function MARK
Industry News | 2023-03-16 14:31:59.0
The SMTA is pleased to announce the Best Papers from SMTA International 2022. The winners were selected by members of the conference technical committee. For these exceptional achievements, a plaque is given to primary authors of all winning papers.
Events Calendar | Wed Feb 21 00:00:00 EST 2024 - Wed Feb 21 00:00:00 EST 2024 | Menomonee, Wisconsin USA
Wisconsin Chapter In-Person PCBA Profile Workshop
Industry News | 2022-01-10 16:55:15.0
The SMTA Capital Chapter Officer team is excited to provide our members with a free technical webinar on "Use of Photonic Soldering to Rework Chip Components" presented by Dr. Vahid Akhavan, Global Application Engineer at NovaCentrix. The presentation will take place on January 20th at 12:00am EST.
Industry News | 2015-01-07 15:52:18.0
The SMTA is pleased to announce the Best Papers from SMTA International 2014. As speakers at SMTA International, individuals make contributions to the industry by sharing their research and findings. To reward exceptional achievement, $1,000 awards and plaques are given for the Best of Conference Presentation, Best of Proceedings Paper, and the Best International Paper.
Industry News | 2019-01-30 08:13:02.0
The SMTA is pleased to announce the Best Papers from SMTA International 2018. As speakers at SMTA International, individuals make contributions to the industry by sharing their research and findings. For these exceptional achievements, a cash award and plaque are given to all winners.
Industry News | 2011-04-20 21:19:17.0
IPC – Association Connecting Electronics Industries® has announced the winners of this year's Best U.S. and International Papers at IPC APEX EXPO™, held April 12–14, 2011, in Las Vegas. The event's Technical Program Committee selected the winners through a ballot process.
