Industry News | 2011-04-07 11:31:09.0
Practical Components announces that its dummy components have been invited to be part of the "Future Proof Assembly Line" at the upcoming National Electronics Week exhibition, which is scheduled to take place April 12-13, 2011 at NEC Birmingham, United Kingdom.
Industry News | 2011-06-16 15:01:31.0
Kyzen announces that Dr. Mike Bixenman will host an upcoming IPC Webinar titled “Cleaning Highly Dense Circuit Assemblies and Advanced Packages” on Tuesday, July 19, 2011 from 10-11 a.m. CST.
Industry News | 2011-07-26 21:41:43.0
Kyzen announces that Dr. Mike Bixenman hosted an informative IPC Webinar titled “Cleaning Highly Dense Circuit Assemblies and Advanced Packages” on Tuesday, July 19, 2011.
Industry News | 2009-08-19 19:55:21.0
EAST WINDSOR, CT — August 2009 — High-Tech Conversions Inc., a manufacturer of high-quality wiping products and a supplier of consumable items used in cleanrooms, assembly lines, laboratories and manufacturing, announces that its GREEN MONSTER formulation has the abrasion resistance to withstand the high friction caused by the wiping action, the integrity to resist fibers from being pulled off by sticky solder paste, and the toughness to withstand the harsh scraping and grating action caused by the stencil’s apertures.
Industry News | 2012-02-15 03:10:09.0
In a significant technology breakthrough set to upend former industry perceptions of closed loop printing processes, DEK announces the development and commercial launch of its revolutionary new closed loop innovation, ProDEK.
Industry News | 2012-02-15 21:13:52.0
In a significant technology breakthrough set to upend former industry perceptions of closed loop printing processes, DEK announces the development and commercial launch of its revolutionary new closed loop innovation, ProDEK.
Technical Library | 2012-10-18 21:58:51.0
First published in the 2012 IPC APEX EXPO technical conference proceedings. In this paper, we report on a comprehensive study regarding the morphology evolution and voiding of SnAgCu solder joints on the central pad of two different packages – QFN and an Agilent package called TOPS – on PCBs with a Ni/Au surface finish.
Technical Library | 1999-07-21 09:04:04.0
A high volume manufacturer of printed circuit boards (PCBs) had attempted for many years to locate an adhesive that was robust enough to meet their manufacturing needs. This proved to be a challenge because they needed the adhesive to accommodate a wide range of different dispensing equipment and board designs. The two key performance criteria required from the adhesive were dispensability and adhesion...
Technical Library | 2018-05-09 22:15:29.0
Creep corrosion on printed circuit boards (PCBs) is the corrosion of copper metallization and the spreading of the copper corrosion products across the PCB surfaces to the extent that they may electrically short circuit neighboring features on the PCB. The iNEMI technical subcommittee on creep corrosion has developed a flowers-of-sulfur (FOS) based test that is sufficiently well developed for consideration as an industry standard qualification test for creep corrosion. This paper will address the important question of how relative humidity affects creep corrosion. A creep corrosion tendency that is inversely proportional to relative humidity may allow data center administrators to eliminate creep corrosion simply by controlling the relative humidity in the data center,thus, avoiding the high cost of gas-phase filtration of gaseous contamination. The creep corrosion relative humidity dependence will be studied using a modified version of the iNEMI FOS test chamber. The design modification allows the achievement of relative humidity as low as 15% in the presence of the chlorine-releasing bleach aqueous solution. The paper will report on the dependence of creep corrosion on humidity in the 15 to 80% relative humidity range by testing ENIG (gold on electroless nickel), ImAg (immersion silver) and OSP (organic surface preservative) finished PCBs, soldered with organic acid flux.
Technical Library | 2023-05-02 19:06:43.0
As 0402 has become a common package for printed circuit board (PCB) assembly, research and development on mounting 0201 components is emerging as an important topic in the field of surface mount technology for PWB miniaturization. In this study, a test vehicle for 0201 packages was designed to investigate board design and assembly issues. Design of Experiment (DOE) was utilized, using the test vehicle, to explore the influence of key parameters in pad design, printing, pick-andplace, and reflow on the assembly process. These key parameters include printing parameters, mounting height or placement pressure, reflow ramping rate, soak time and peak temperature. The pad designs consist of rectangular pad shape, round pad shape and home-based pad shape. For each pad design, several different aperture openings on the stencil were included. The performance parameters from this experiment include solder paste height, solder paste volume and the number of post-reflow defects. By analyzing the DOE results, optimized pad designs and assembly process parameters were determined.
COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.
2481 Hilton Drive
Gainesville, GA USA
Phone: (770) 538-0411
