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Here you can find knowledge about High Anti-Oxidation Solder Bar, including but not limited to usage methods, installation techniques, troubleshooting and more. Focused on SMT soldering processes. If you can't find what you need, please contact us anytime.
The Jiajinyuan R&D team has been continuously optimizing the formulation system in response to solder performance bottlenecks, and has developed 12 major halogen-free and lead-free solder series covering the full temperature range of high, medium, low and ultra-low temperatures. Its domestic high-end solders have achieved breakthroughs in key indicators such as QFN/DFN solder wetting rate, low void rate for automotive lamps, and no solder balls in laser welding.
Published: 2015-01-08Leveraging its solder ODM R&D capabilities, JJY has developed solder pastes and preformed solder sheets with low voiding rate, zero halogen, and high-temperature reflow resistance for scenarios such as medical equipment, new energy vehicle electronic control, and high-reliability industrial modules. Their solder joint thrust reaches over 85MPa, and the IMC layer thickness is controlled within the range of 1.2～1.8μm, meeting the dual certification requirements of ISO 13485 and AEC-Q200.
Published: 2014-09-13Wave soldering of thick-copper PCBs is prone to solder joint voids, poor wetting, and uneven heat absorption caused by copper thickness. Using Jiajinyuan high-wettability solder bars can significantly improve solder climb height and the consistency of fillet formation, with particularly pronounced process advantages in structures with copper thickness above 2oz, large-area copper foils, and multilayer thick-copper constructions.
Published: 2014-08-25High-frequency board welding is extremely sensitive to solder paste voiding rate. Dielectric parameter fluctuations caused by voids directly degrade signal integrity. Jiajinyuan low-void solder paste, by optimizing metal content, flux volatilization gradient and reflow wetting dynamics, stably controls the voiding rate of BGA solder joints within 3.2% in 5G RF module tests, significantly suppressing insertion loss drift in high frequency bands.
Published: 2013-05-22Nitrogen reflow involves introducing high-purity nitrogen into the reflow oven to significantly reduce the oxygen content in the chamber to below 100 ppm, thereby inhibiting the oxidation reaction of metal components such as tin, silver, and copper in the solder paste at high temperatures, improving the brightness and wettability of solder joints, and reducing void rate and cold solder risks. It is a key process method for the stable mass production of Jia Jinyuan series reflow ovens in the soldering of fine-pitch devices such as QFN and BGA.
Published: 2013-04-16For reworking oxidized PCB pads, two issues must be addressed simultaneously: the surface oxide layer and poor wetting. Jia Jinyuan high-activity flux can effectively reduce CuO and lower interfacial tension. Combined with light mechanical scraping and nitrogen-protected reflow, it raises the first-pass rework yield of oxidized pads to over 92%, significantly outperforming the 65% achieved by traditional rosin-based flux.
Published: 2012-09-29Poor wetting of oxidized old pads during rework soldering is a high-frequency production line failure. Jia Jinyuan JY-808 high-activity flux can effectively reduce the CuO layer and lower surface tension. Combined with precise temperature-controlled soldering tip operation in a 350°C nitrogen environment, it increases the spread rate of solder paste on oxidized copper pads from less than 40% to over 92%, significantly shortening the rework cycle and reducing missed detection of cold solder joints.
Published: 2012-07-22Automotive electronic solder is prone to microcracks and interfacial delamination during high-low temperature cycling. The sample testing service provided by JJY can realistically simulate solder joint reliability under conditions of -40℃ to 125℃ and 500 cycles, helping production lines quickly verify the compatibility of solder with PCB pads and component terminals, and avoid functional failures after batch soldering.
Published: 2012-03-11
Excessively high activity of solder paste can cause welding hazards such as solder joint voids, component corrosion, solder ball splashing, and whitening residue on the PCB surface. This is especially true in high-temperature and high-humidity environments, where the risk of ionic contamination is exacerbated, directly affecting the SMT line's first-pass yield and the product's long-term reliability.
Published: 2012-02-20Automotive electronic solder must maintain zero solder joint cracking under wide temperature range from -40℃ to 150℃, high vibration and long-life operating conditions. Jiajinyuan's high-reliability formula precisely controls the ratio of silver, copper and bismuth ternary metals as well as the residual amount of active flux, increasing the thermal fatigue resistance life of solder joints by 3.2 times and reducing the drop impact failure rate to below 0.008%, fully meeting the AEC-Q200 automotive grade requirements.
Published: 2011-12-18Our technical team is always ready to provide professional solder material selection advice and SMT process solutions.