Industry News | 2018-11-06 10:44:06.0
Koh Young Technology reached an impressive milestone recently when the 13,000th inspection system Zenith 2 Automatic Optical Inspection (AOI) was delivered to wenglor sensoric GmbH, Germany. The Zenith series measures the true profilometric shape of components, solder joints and even foreign material on assembled PCBs with true three-dimensional accuracy and with comprehensive IPC-610 comparison.
Automated 2D & 3D inspection Unsurpassed image quality High defect detection Low false calls Fast throughput Quick set-up Nordson YESTECH's versatile X3 Automated X-Ray Inspection Systems (AXI) offers complete inspection of sol
Technical Library | 2016-01-21 16:52:27.0
Solder paste has long been viewed as "black magic". This "black magic" can easily be dispelled through a solder paste evaluation. Unfortunately, solder paste evaluation can be a challenge for electronic assemblers. Interrupting the production schedule to perform an evaluation is usually the first hurdle. Choosing the solder paste properties to test is simple, but testing for these properties can be difficult. Special equipment or materials may be required depending upon the tests that are chosen. Once the testing is complete, how does one make the decision to choose a solder paste? Is the decision based on gut feel or hard data?This paper presents a process for evaluating solder pastes using a variety of methods. These methods are quick to run and are challenging, revealing the strengths and weaknesses of solder pastes. Methods detailed in this paper include: print volume, stencil life, response to pause, open time, tack force over time, wetting, solder balling, graping, voiding, accelerated aging, and others.
Technical Library | 2022-10-31 17:30:40.0
This paper presents a quantitative analysis of solder joint reliability data for lead-free Sn-Ag-Cu (SAC) and mixed assembly (SnPb + SAC) circuit boards based on an extensive, but non-exhaustive, collection of thermal cycling test results. The assembled database covers life test results under multiple test conditions and for a variety of components: conventional SMT (LCCCs, resistors), Ball Grid Arrays, Chip Scale Packages (CSPs), wafer-level CSPs, and flip-chip assemblies with and without underfill. First-order life correlations are developed for SAC assemblies under thermal cycling conditions. The results of this analysis are put in perspective with the correlation of life test results for SnPb control assemblies. Fatigue life correlations show different slopes for SAC versus SnPb assemblies, suggesting opposite reliability trends under low or high stress conditions. The paper also presents an analysis of the effect of Pb contamination and board finish on lead-free solder joint reliability. Last, test data are presented to compare the life of mixed solder assemblies to that of standard SnPb assemblies for a wide variety of area-array components. The trend analysis compares the life of area-array assemblies with: 1) SAC balls and SAC or SnPb paste; 2) SnPb balls assembled with SAC or SnPb paste.
Career Center | Milpitas, California USA | Engineering,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 individuals specializing in materials lab testing to join our team. We have openin
Industry News | 2010-10-23 15:38:23.0
Circuit Technology Inc., an IPC master training organization, announces the launch of its redesigned Web site located at www.circuittechnology.com
Technical Library | 2023-09-26 19:14:44.0
The transition from tin-lead to lead free soldering in the electronics manufacturing industry has been in progress for the past 10 years. In the interim period before lead free assemblies are uniformly accepted, mixed formulation solder joints are becoming commonplace in electronic assemblies. For example, area array components (BGA/CSP) are frequently available only with lead free Sn-Ag-Cu (SAC) solder balls. Such parts are often assembled to printed circuit boards using traditional 63Sn-37Pb solder paste. The resulting solder joints contain unusual quaternary alloys of Sn, Ag, Cu, and Pb. In addition, the alloy composition can vary across the solder joint based on the paste to ball solder volumes and the reflow profile utilized. The mechanical and physical properties of such Sn-Ag-Cu-Pb alloys have not been explored extensively in the literature. In addition, the reliability of mixed formulation solder joints is poorly understood.
New Equipment | Selective Soldering
SelPot-400 Inline Selective Soldering Module SelPot-400 is a single rail in-line selective soldering machine with an independent control system. It’s equipped with a X/Y/Z servo table and soldering pot, an inline N2 heating system, and has the advan
SUPERIOR VISION & X-RAY 2000 Advanced Inspection of Your Printed Wiring Assemblies (PWA) Including Ball Grid Array (BGA) and Other Hidden Features Photon Dynamics Superior Vision & X-ray (SVX) 2000 completely inspects PWAs inside and out. Using adv
Industry News | 2017-01-24 10:55:12.0
BP 256 is YINCAE’s new ball attach adhesive product
