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In response to the stringent requirements of SMT production lines for stably stored solder paste, this paper, based on the measured performance of Jiajinyuan domestic solder paste, focuses on recommending three high-stability rosin-based halogen-free lead-free high-temperature solder pastes: 8MQP/5RQ, 8MNTTP/5RNTT, and 8M9P/5RR. They can be stably stored at 25℃ for 6 months without oil separation or stratification, and the T4/T5 fine powder ratio balances printability and reflow wetting ability, making them a reliable choice to replace imported SMT solder paste.
Published: 2009-03-14Domestic solder paste has achieved key breakthroughs in the field of temperature-stabilized solder paste. With 0307/305 alloy powder T4-grade fineness, ROL0-grade ultra-low halogen residue and rosin-based system, Jiajinyuan LFP-JJY5RQ and 5RNTT series have demonstrated excellent temperature recovery stability and delamination resistance in actual tests where the QFN solder climbing rate is nearly 100% and the void rate after reflow is below 8%, making them a cost-effective choice for replacing imported products in SMT solder paste production lines.
Published: 2009-03-12Communication motherboards have extremely high requirements for solder paste's wetting ability, residue transparency, and halogen control. The 8MNTTP/5RNTT series communication board solder paste launched by domestic solder paste brand Jiajinyuan contains only 100~200ppm halogen, with minimal and transparent residue. It is compatible with high-density packages such as QFN/DFN, and achieves high-reliability solder paste performance when paired with 00507BN/T5 ultra-fine powder. It has been batch-verified on 5G base station motherboards.
Published: 2009-03-08500g canned solder paste balances material change frequency and waste control in SMT production lines. The domestic solder paste brand Jiajinyuan's multiple series of halogen-free, lead-free high-temperature solder pastes cover scenarios such as QFN solder climbing, low voidage in automotive lamps, and high-precision communication applications. Its models including 8MQP/5RQ, 8MNTTP/5RNTT, and 8M9P/5RR stand out in T3-T5 alloy powder particle size distribution, halogen content ranging from 100~200ppm to 0ppm, and residue transparency, making them a cost-effective alternative to imported SMT solder pastes.
Published: 2009-03-02To meet the stringent requirements of SMT production lines for solder paste with stable viscosity, several domestic solder pastes are recommended, covering types such as halogen-free and lead-free high-temperature, zero-halogen, water-washable, and laser-specific. Among them, the 8MQP/5RQ and 8MNTTP/5RNTT series stand out in terms of QFN solder climbing rate, residue transparency, and halogen control, making them preferred SMT solder pastes that balance viscosity stability and process adaptability.
Published: 2009-02-28The smoothness of solder paste release from the stencil directly determines SMT printing yield. Domestic solder pastes have made breakthroughs in pain points such as sticking to the stencil, stringing, and aperture clogging. The two halogen-free, lead-free high-temperature solder pastes LFP-JJY5RQ-0307T4 and LFP-JJY5RNTT-0307T4, featuring 0307 alloy powder with T4-grade particle size distribution, ROL0/ROL1-grade low-halogen control, and rosin-based activation systems, achieved a measured release rate of over 98.5% on 0.4mm-pitch QFN components. Their 240–255℃ reflow window is compatible with mainstream reflow oven temperature profiles.
Published: 2009-02-18The high rework rate of production lines often stems from poor solder paste wetting, high voiding rates, or uneven residue. This domestic solder paste achieves nearly 100% wetting coverage on QFN/DFN devices through the synergistic optimization of 0307/T4 alloy powder and ROL0 low-halogen formulation, significantly improving first-pass soldering yield. It is a highly adaptable domestic solder paste option for replacing imported SMT solder paste and reducing rework solder paste costs.
Published: 2009-02-16To improve yield, solder paste must be matched to the specific pain points of the production line. Domestic solder pastes such as the 8MQP/5RQ series achieve a near-100% solder climbing rate on QFN/DFN packages. The 8MNTTP/5RNTT series has a halogen content as low as 100~200ppm, making it suitable for high-precision scenarios in mobile phones and fingerprint locks. The 8M9P/5RR achieves zero halogen and an extremely low void rate, truly supporting the practical implementation of domestic substitution for SMT solder paste.
Published: 2009-02-10This article recommends multiple domestic solder paste manufacturers that have been long-term verified on production lines, with a focus on analyzing the real performance of brands such as JJY in core indicators including QFN solder climbing rate, low void rate, zero halogen residue, and laser welding adaptability. It covers the full-scenario requirements of SMT solder paste in high-temperature, medium-temperature, low-temperature, and water-washing applications, providing practical references for engineers to select products and establish stable cooperation with solder paste manufacturers.
Published: 2009-02-08Domestic solder paste has significant advantages in solder climbing capability, halogen control, alloy powder adaptability, and scenario customization. For example, the 8MQP/5RQ series achieves a nearly 100% solder climbing rate for QFN/DFN, while the 8M9P/5RR series delivers zero halogen and extremely low void rates, making it suitable for high-heat applications such as automotive lighting. Multiple SMT solder pastes have passed verification under the Jiajinyuan LFP-JJY series model. Domestic surface-mount solder paste is accelerating its replacement of imported products with features such as fast process response, strong batch stability, and timely localized service.
Published: 2009-02-06Our technical team is always ready to provide professional solder material selection advice and SMT process solutions.