Heat transfer fluid used in ibl vapor phase reflow soldering machine 12. Higher temp vapor phase reflow soldering process ht 260. Pcb leaves the vapor zone, the remaining condensed fluid on the pcb evaporates, due to the residual heat of the board. The machines feature a standardized smema interface for easy inline integration. Ibls cx600cx800 is fully automated inline vapor phase soldering solution. Conversely, vp reflow profiling can be classified by process type to the point. Fundamentals and benefits of vapor phase reflow soldering. At a multi vacuum treatment in combination with an excellent vapor phase reflow process, voiding level is going down to nearly zero at all components.
Introduction reflow process overview selection of solder paste. Vapor phase soldering is a method of reflow technology developed by att labs in nj back in the 80s. Solderstar is a manufacturer of temperature profiling systems and software. Light double sided, heavy double sided, light layer, heavy multilayer. Galden high temperature vapor phase reflow fluid hs260, hs240, ls230 galden, smt, soldering, solvay, solvay solexix, vapor phase reflow fluid galden ls hs is a line of fully fluorinated fluids specifically designed for the vapor phase soldering process. During conventional reflow in order to ensure that the hidden central joints of these delicate devices are heated sufficiently, the temperature may have to be raised as much as 50. Jul 31, 20 in reflow soldering, the pads of the printed circuit boards are first covered with solder paste, which is a mixture of tiny beads of pure solder, little spheres, and solder flux. The design of the conventional convection reflow systems incorporates a belt transportation system utilizing multiple process lanes. Whereas the liquid layer solely exists to provide an appropriate vapor, the vapor layer is where the action happens in vapor phase soldering units. The technology vapor phase soldering, also well known as condensation soldering, uses for the heatingup process of the assemblies the thermal energy which is emitted by phase change of the heat transfer medium from gaslike to liquid state. Vapor phase reflow soldering machine for hobby and laboratory single pieces up to small quantities. Thermal profiler temperature profiling and wave solder optimizer. Heat transfer in condensation soldering is up to ten times higher than in convection soldering. In condensation reflow soldering, or vapor phase soldering, soldering is accomplished using a hot vapor.
The recommended solder void criteria for vapor phase are 5% on a single void and 10% total voids. Vapor phase inline system for high volume throughput. This method allows the user to carefully control the volume of the soldering medium vapor, while reflow soldering pcbas inside a hermetically sealed chamber. Temperature of soldering liquid increases to boiling point temperature and keeps liquid.
Oct 28, 20 this is a video by amtech electrocircuits to briefly overview the advantages of vapor phase reflow over the widely used convection reflow technology. Therefore its important to consider the process holistically, rather than each element of the process separately. Datapaq reflow tracker thermal profiling system fluke. There are several different reflow methods to liquefy solder in a controlled way and not all of them can literally be called ovens. Vapor phase soldering transfers heat at about 100400 wm 2 k, which is considerably higher than 1060 wm 2 k of heat transferred by convection reflow soldering. Two independent stations for loading and unloading of.
Perhaps the largest challenge is the risk that the high temperatures of tooling and soldering could cause damage to the structure of different components being mounted to the board or even the board itself. The reflow process convection vs vapor phase hawker richardson. Our unique dataloggers can be used for reflow, wave, selective and vapour phase soldering and provides a common software platform to streamline the capture and analysis of profiling information from the shop floor. The profile planner is an microsoft excel workbook application that allows you to match solder paste specifications and oven specifications. It is important that the vapor be inert, so there is not a negative reaction with the boards being soldered.
This makes it particularly suitable for processing large or highmass boards in a stable process atmosphere. Decisive for vapor phase soldering is the appropriate control and regulation of the energy transmission. Asscon vp800 vaporphase soldering system description. Thanks to its multichamber design, the system can also be used for implementing closetoproduction process qualifications. Ultimately, whichever solder paste is utilised, both the reflow solution and the paste needs to be configured to minimise both voiding and insufficient wetting. Boards will only be heated as high as the condensing vapor temperature. In reflow soldering, the pads of the printed circuit boards are first covered with solder paste, which is a mixture of tiny beads of pure solder, little spheres, and solder flux. Vapor phase soldering was the process of choice in reflow soldering as it provided the easiest way of heat transfer for the newly developed smd technique. Smt reflow soldering ovens and vapor phase soldering systems solder reflow ovens and vapor phase reflow soldering systems for all levels of smt pcb assembly, from prototyping to full production. Solderstar produce thermal profiler solutions for reflow soldering, selective solder machine profiling and. Thermal profiling solutions for reflow, wave,selective and. There is a lot you can do with a quick visual of the board and parts.
Dedicated software allows vapour phase machines to be defined, enabling the process to be controlled to the same extent as conventional reflow ovens. The inert environment and consistency of heat transfer allow vp to be more forgiving with leadfree component terminations. Vapor phase reflow soldering is an advanced soldering technology. Ibl offers economic, individual solutions for every need in the region of reflow soldering. This helps to prevent oxidation and mitigates failed or defective joints. Vapour phase ovens are smaller than convection ovens, thus they save space in production. Soldering profile optimization for vapour phase reflow. Higher uph and lower coo are the key advantages of convection reflow in comparison vapor phase soldering. Conclusion the vapor phase soldering process transfers heat at about 100 to 400wm2 k, considerably higher than 10 to 60wm2 k of heat transferred by convection reflow soldering. Carrier sizes from 680 x 650 x 80 mm up to 825 x 650 x 80 mm. The vacuum vapor phase reflow soldering process reflow solder joints and soldered areas contain voids due to the air and flux in the solder paste.
In the last process step the soldered and dry pcb is cooled in a cooling zone. Atf vp 400 vapor phase reflow oven interelectronic. The soldering of smt boards was very convenient when using vapor phase because of its excellent heat transfer capabilities. Then, vapor phase soldering was the preferred reflow soldering. Vapour phase is a perfect choice and together with solderstar profiling systems and its dedicated software, it allows vapour phase machines to be defined, enabling the process to be controlled to the same extent as a conventional reflow oven. To help you understand the correlation between reflow profile and defects better. Vapor phase reflow fluid product categories atek supplies. The temperature of the saturated vapor zone is the same as the boiling point of the vapor phase liquid. Smt board assembly process intel manufacturing enabling guide 5 march 2016 introduction this chapter addresses the surface mount technology smt board assembly process for reflow soldering smt components to boards, as well as rework soldering for removing and replacing individual components on alreadyassembled boards. Components such as qfps, bgas, flipchips as well as hybrids are processed defect. The vapor comes from boiling perfluoropolyether, an inert heat transfer liquid. The vapor phase process is the ideal solution to reflow temperature control issues in small batch production runs. The asscon vp800 system has been developed especially for laboratories and prototyping. The sv540 combines a slim design for a small footprint with a 2chamber system.
Asscon vp800 vapor phase soldering system description. However, there may be leds, lcds, or other components that cannot be immersed into the vapor. This configuration maximizes total uph in high volume applications. In a vapor phase oven, limitations of the physical temperature reliably prevent overheating of any part in the soldering process. Smt assembly lines smt assembly lines turnkey solutions consisting of stencil printers, pick and place, and reflow soldering for all levels of smt production.
Thermal profiling solutions for reflow wave soldering. Leaded leadfree ls 200 ls 215 ls 230 hs 235 hs 240 high quality reflow soldering with vapor phase the new approach of vapor phase technology. Solder reflow ovens and vapor phase reflow soldering systems for all levels of smt pcb assembly, from prototyping to full production. A typical vapor phase soldering process consists of several temperature zones created by saturated vapor from a boiling liquid. Vaporphase vp soldering was once considered the preferred reflow. Vapor phase reflow the soldering process has always presented challenges in large scale pcb applications.
As the circuit passes through the zone the vapor condenses on the solder paste, pad, and termination resulting in heat transfer and reflow of the solder paste. Vapor phase reflow soldering machine for hobby and. Moreover, the heat transferred by vapor phase is uniform on all components of the pcb, reducing stresses during soldering. The process conditions are highly repeatable providing consistency from batch to batch with. Vapor phase soldering and optimized reflow technology for lead free soldering. Vapor phase soldering vps, also known as condensation soldering, has gone through changes in popularity. Manufacturer of thermal profilers, wave solder optimizers, selective solder profiling fixtures and and vapour phase temperature profiling.
High freq multilayer highq capacitors johanson technology. Comparison of solder paste residue chemical reliability emmanuelle guene, annemarie laugt, celine puechagut, aurelie ducoulombier inventec performance chemicals bry sur marne, france abstract convection soldering remains the most common reflow process in electronic assembly, mostly in air, but sometimes. Thermal profiling solutions for reflow, wave,selective. It was the process of choice in the early 1980s, but its use declined considerably for two reasons. Today, the soldering procedure can be individually regulated, and may include a vacuum module for voidfree soldering.
Going lead free with vapor phase soldering lead free is still a challenge for major industries andreas thumm ibllottechnik gmbh koenigsbrunn, germany a. Therefore, only 5 generic parameters has to be set at the asscon process. The vp 7000 vacuum systems are based on advanced paten. Solutions for reflow reflow profiling systems, fixtures and analysis software solutions for waveselective through hole solder machine process control systems solutions for vapour phase lowmass profiling solution for the vapour phase process smartlinex. The vapor phase ovens were pretty long and heavy though. All components are typically available in lead free quality. Vph, also called condensation heating, is therefore a very versatile method of heat transfer. Thermal profiling solutions for reflow, wave,selective and vapor phase soldering. Based in milwaukie, oregon, the company is a pioneer in the design, development, and manufacture of advanced thermal profiling systems and software used to monitor and analyze process temperatures in various industries including electronics, solar, baking, among others.
The advantages and disadvantages of vapour phase soldering. The method is applicable with even the most complex smt components like qft, bga, flip chips, and ceramic assemblies. In contrast with the convection reflow oven, the vapor phase reflow oven has a much smaller footprint, and the pcb assembly moves vertically up and down instead of sideways. Previous concerns about the environmental impact of early vapor phase reflow machines have been addressed, with the eradication of the use of cfcs to ensure safe operation and adherence to local legislation. Presentation overview basics of lead free vp reflow vapor phase history vapor phase explained reflow soldering development challenges and solutions convection versus vapor phase vapor phase profiling vapor phase samples conclusions questions 1. Ibl technologies speeds up vapor phase soldering with advanced batch systems at apex. It provides precise, high quality results at medium to high volume throughput. Solderstar unit passing through an ibl vapour phase machine with vacuum. The reflow process convection vs vapor phase hawker. When compared therefore to convection and wave soldering machinery, the advantages of vapor phase reflow soldering are numerous. The saturated vapor condenses and transfers its latent heat of vaporization to the surface of the parts. Unlike convection, this type of ovens uses condensation or vapor phase for soldering. Vapor phase reflow soldering machine for hobby and laboratory single pieces up to small quantities mini condensit profiler the imdes mini condensit profiler is designed for reflow soldering laboratory and prototype, single pieces and small quantities pcb s. Profile planner reflow profiling software description.
Key advances in void reduction in the reflow process using. This fluid does not have any environmental concerns. Smds offered by api include packages with gullwing leads, flat packs, surface mount packages such as our popular sm3, 0. Autoseeker reflow thermal profile optimisation software. Vapor phase reflow vapor phase reflow offers the simplest and most reliable method of soldering with soldering occurring in the narrowest of process windows. The datapaq reflow tracker temperature profiling system travels through the process, enabling you to monitor wave and reflow soldering, as well as vapor phase, selective soldering and rework stations. What i did was to generate a small array of generic profiles. Reflow soldering is the most common process used by manufacturers and repair shop to mount electronic components on a printed board circuits and reflow is the stage of reflowing solder where the solder or solder paste changes its state from solid to liquid at the high heat temperature to make solder joint on pcb printed board circuits. Unique feature is the temperature profile control software. A generic reflow profile is a great idea but the problem is hitting it with different board designs. An exact energy yield has to be generated and transferred, which the assembly needs for the requested temperature profile. Asscon vapor phase reflow soldering systems set standards in soldering technology. With the adjustable solder automatic it allows the highest soldering quality. Vps has emerged in t soldering profile optimization for vapour phase reflow technology ieee conference publication.
Comprised of specifically designed thermocouples, data loggers, protective thermal barriers and insight software, this system will help you. Smt quick tips selecting a reflow oven ddm novastar inc. See figure 7 for an example profile and table 1 for parameters. Loading and unloading conveyors with buffer function. Solderstar is one of the worlds leading thermal profiling solution providers, with over a decade of specialising in the design, development and manufacture of profiling systems within the electronics manufacturing industry. Aug 10, 2016 vapor phase reflow soldering is an advanced soldering technology. The solder include both water soluble and no clean leadfree paste. Profile optimisation, wave solder process control, vapour phase soldering. Vapour phase soldering vps is an alternative method for widespread reflow soldering technologies e.
The datapaq reflow trackertemperature profiling system travels through the process, enabling you to monitor wave and reflow soldering, as well as vapor phase, selective soldering and rework stations. Temperature profiling is unnecessary with vapor phase reflow. Match solder paste specifications and oven configurations to provide robust process profiles. Metal core boards were one of the first assemblies we started processing in vapor phase and continued to process in the early 1980s when vapor phase was the principle reflow technique. When low void or void free soldering is needed, it can be achieved with vacuum solder processes.
Wave the waveshuttle pro provides the perfect platform for indepth wave solder machine setup and monitoring. Phil i remember in the early days of convection ir when we would see an application like this we would go, oh, just use vapor phase. The need for nitrogen to be used in convection reflow is becoming a requirement more than an option, and nitrogen is costly. Asscon vapor phase reflow product categories atekllc. Benefits of vapor phase soldering final temperature of all components exactly defined by temperature of the vapour overheating of components, delamination etc. During vapor phase heating vph, parts are directly immersed in a heated vapor blanket.
1549 942 794 837 747 28 423 714 1329 1476 1116 304 209 602 69 186 1428 108 1050 636 263 1489 1381 1321 1474 1122 1206 324 562 731 1361