Technical Library | 2020-01-28 00:23:58.0
This paper explores new advances in the reflow soldering process including vacuum technology and warpage mitigation systems. The first topic for discussion will be the implementation of a vacuum process directly in a conventional inline soldering system. The second topic presented is the mitigation of warpage on substrates or wafers.
Technical Library | 2019-07-10 23:36:14.0
Pockets of gas, or voids, trapped in the solder interface between discrete power management devices and circuit assemblies are, unfortunately, excellent insulators, or barriers to thermal conductivity. This resistance to heat flow reduces the electrical efficiency of these devices, reducing battery life and expected functional life time of electronic assemblies. There is also a corresponding increase in current density (as the area for current conduction is reduced) that generates additional heat, further leading to performance degradation.
Technical Library | 2024-03-19 07:58:40.0
Introduction of Solder Paste Jet Dispensing Machine Step into the future of manufacturing with the Solder Paste Jet Dispensing Machine, meticulously crafted in Japan under the esteemed I.C.T brand. This cutting-edge equipment represents the pinnacle of precision engineering, delivering unrivaled performance and reliability. Let's dive into its exceptional features and applications. Transmission Structure System of Solder Paste Jet Dispensing Machine At the heart of this Solder Paste Jet Dispensing Machine lies a meticulously designed transmission structure system. Powered by X Y linear motor drive control, it achieves unprecedented precision in positioning. With a reciprocating position accuracy of 3σ±5um and a dynamic position accuracy of 3σ±3um across the X, Y, and Z axes, it ensures flawless execution of tasks with minimal deviation. The load-type gantry structure further enhances stability and accuracy, guaranteeing consistent performance even during high-speed operations. Advanced Function Configuration Flexibility and customization are the hallmarks of the Solder Paste Jet Dispensing Machine. It features a customizable platform tailored to meet the specific needs of diverse applications, ensuring optimal performance and efficiency. Additionally, the machine boasts advanced functionalities such as automatic correction of substrate warp height and real-time penetration monitoring. Equipped with dual cameras, it provides precise feedback for adjustments during the filling process, ensuring unmatched precision and quality. Function configuration.jpg Vision Non-stop Experience uninterrupted precision with the Vision Non-stop functionality of this machine. Capable of detecting 100 chips per second, it automatically identifies position and height deviations, enabling real-time compensation for coating actions. Dual compensation for path and glue amount further optimizes efficiency, minimizing waste and maximizing productivity. With its ability to print solder paste dots as small as 110um, it's perfectly suited for high-precision applications in ICs, BGAs, and beyond. Versatility in Configuration Options and Applications Adaptability is key in modern manufacturing, and the Solder Paste Jet Dispensing Machine delivers on all fronts. Offering a range of configuration options, including different valves tailored to various material viscosities and fluidity, it ensures optimal performance across diverse production scenarios. From semiconductor packages to LED back-end Mini-LED production, its versatility knows no bounds, making it an indispensable asset in a wide range of industries. Explore the Future of Manufacturing with I.C.T Join the ranks of industry leaders embracing the future of manufacturing with I.C.T's Solder Paste Jet Dispensing Machine. With its unrivaled precision, speed, and reliability, it's set to revolutionize your production processes and propel your business to new heights of success. Don't just keep up with the competition--surpass it with I.C.T's cutting-edge solutions. Unlock the Potential of Precision Manufacturing Delve deeper into the transformative power of precision manufacturing and discover how the Solder Paste Jet Dispensing Machine can unlock new possibilities for your business. From reducing production costs to improving product quality, the benefits are endless. Partner with I.C.T today and embark on a journey towards manufacturing excellence. Conclusion In conclusion, our Solder Paste Jet Dispensing Machine embodies the fusion of Japanese precision and I.C.T reliability, offering unparalleled efficiency in solder paste dispensing. With its advanced features and customizable options, it caters to the diverse needs of modern manufacturing processes. Experience the pinnacle of dispensing technology with our Solder Paste Jet Dispensing Machine. Overseas Technical Support by I.C.T At I.C.T, our commitment to customer satisfaction extends beyond the initial purchase. We provide comprehensive overseas technical support, including machine installation, debugging, and customer training. Our dedicated team ensures that your production line runs smoothly from the first product off the line to the seamless delivery of the machine. Partner with I.C.T today and elevate your manufacturing precision with our Solder Paste Jet Dispensing Machine. Contact us now to learn more about our solutions and take your production processes to new heights of efficiency and reliability.
Technical Library | 2023-09-23 22:29:02.0
Moisture trapped within components and PBs presents a serious problem during the fabrication and assembly process. Too much moisture can lead to board failures when it is turned to steam during the reflow process.
Technical Library | 2020-11-24 23:12:27.0
In a lead-free reflow process, temperatures are higher, and materials use outgasses more than in a leaded reflow process. The trends toward higher density populated boards and more pin-in-paste technology also increase solder paste use. More components and more solder paste result in more outgassing of chemistry during the reflow process. Some assemblies report condensation of vapors when the cold printed circuit board enters the oven. Little is known about the interaction between these condensed materials in terms of the interaction between these condensed materials and the reliability of the assembly. Apart from the question of reliability, a printed circuit board contaminated with a small film of residues after reflow soldering is not desirable.
Technical Library | 2023-11-14 19:24:08.0
In PCB circuit assemblies the trend is moving to more SMD components with finer pitch connections. The majority of the assemblies still have a small amount of through hole (THT) components. Some of them can't withstand high reflow temperatures, while others are there because of their mechanical robustness. In automotive applications these THT components are also present. Many products for cars, including steering units, radio and navigation, and air compressors also use THT technology to connect board-to-board, PCB's to metal shields or housings out of plastic or even aluminium. This is not a simple 2D plain soldering technology, as it requires handling, efficient thermal heating and handling of heavy (up to 10 kg) parts. Soldering technology becomes more 3D where connections have to be made on different levels. For this technology robots using solder wire fail because of the spattering of the flux in the wires and the long cycle time. In wave soldering using pallets the wave height is limited and pin in paste reflow is only a 2D application with space limitations.
Technical Library | 2019-05-01 23:18:27.0
Moisture can accelerate various failure mechanisms in printed circuit board assemblies. Moisture can be initially present in the epoxy glass prepreg, absorbed during the wet processes in printed circuit board manufacturing, or diffuse into the printed circuit board during storage. Moisture can reside in the resin, resin/glass interfaces, and micro-cracks or voids due to defects. Higher reflow temperatures associated with lead-free processing increase the vapor pressure, which can lead to higher amounts of moisture uptake compared to eutectic tin-lead reflow processes. In addition to cohesive or adhesive failures within the printed circuit board that lead to cracking and delamination, moisture can also lead to the creation of low impedance paths due to metal migration, interfacial degradation resulting in conductive filament formation, and changes in dimensional stability. Studies have shown that moisture can also reduce the glass-transition temperature and increase the dielectric constant, leading to a reduction in circuit switching speeds and an increase in propagation delay times. This paper provides an overview of printed circuit board fabrication, followed by a brief discussion of moisture diffusion processes, governing models, and dependent variables. We then present guidelines for printed circuit board handling and storage during various stages of production and fabrication so as to mitigate moisture-induced failures.
Technical Library | 2021-09-29 13:35:21.0
In PCB circuit assemblies the trend is moving to more SMD components with finer pitch connections. The majority of the assemblies still have a small amount of through hole (THT) components. Some of them can't withstand high reflow temperatures, while others are there because of their mechanical robustness. In automotive applications these THT components are also present. Many products for cars, including steering units, radio and navigation, and air compressors also use THT technology to connect board-to-board, PCB's to metal shields or housings out of plastic or even aluminium. This is not a simple 2D plain soldering technology, as it requires handling, efficient thermal heating and handling of heavy (up to 10 kg) parts. Soldering technology becomes more 3D where connections have to be made on different levels. For this technology robots using solder wire fail because of the spattering of the flux in the wires and the long cycle time. In wave soldering using pallets the wave height is limited and pin in paste reflow is only a 2D application with space limitations. Selective soldering using dedicated plates with nozzles on the solder area is the preferred way to make these connections. All joints can be soldered in one dip resulting in short cycle times. Additional soldering on a small select nozzle can make the system even more flexible. The soldering can only be successful when there is enough thermal heat in the assembly before the solder touches the board. A forced convection preheat is a must for many applications to bring enough heat into the metal and board materials. The challenge in a dip soldering process is to get a sufficient hole fill without bridging and minimize the number of solder balls. A new cover was designed to improve the nitrogen environment. Reducing oxygen levels benefits the wetting, but increases the risk for solder balling. Previous investigations showed that solder balling can be minimized by selecting proper materials for solder resist and flux.
Technical Library | 2008-03-18 12:36:31.0
This paper examines the construction of a notebook mainboard with more than 2000 components and no wave soldering required. The board contains standard SMD, chipset BGAs, connectors, through hole components and odd forms placed using full automation and soldered after two reflow cycles under critical process parameters. However, state of the art technology does not help if the process parameters are not set carefully. Can all complex BGAs, THTs and even screws be soldered on a single stencil? What will help us overcome bridging, insufficient solder and thombstoning issues? This paper will demonstrate the placement of all odd shape components using pin-in-paste stencil design and full completion of the motherboard after two reflow cycles.
Technical Library | 2008-05-14 15:44:58.0
This paper will review some basic past and present flux chemistries that affect flux collection methodology. It will also review some of the most common flux collection methods, self-cleaning techniques, and maintenance goals. And, finally, data will be presented from high volume production testing of an advanced flux management system.
