sintering conductive copper paste

Product Name sintering conductive copper paste Product Overview This product is a high-temperature sintering conductive copper paste specially used for internal electrodes of LTCC electronic components. It is refined from high-purity copper powder, special inorganic binders, functional organic solvents and additives. Adapted to LTCC multi-layer ceramic substrate technology, it adopts nitrogen-protected high-temperature sintering and curing process. After forming, the conductive layer is dense and uniform with excellent adhesion, featuring good temperature resistance, electroplating performance and solderability. It is a dedicated conductive material for the core internal electrodes of LTCC radio frequency components, ceramic packaging devices and multi-layer ceramic circuits, with stable performance and suitability for industrial mass production. Technical Parameter 浆料粘度 / Viscosity 230 Pa·s(测试条件:常温,标准转速) 适配丝网印刷施工 施工方式 / Construction Method 丝网印刷 / Screen Printing 适配常规LTCC印刷工艺固化烧结条件 / Curing & Sintering Condition 氮气保护氛围,850°C,保温10分钟850°C for 10 minutes under nitrogen protection 杜绝铜层高温氧化,保障导电性能 成型后耐温等级 / Temperature Resistance After Forming 长期耐温200°C / Long-term temperature resistance: 200°C 高温工况下性能稳定 表面特性 / Surface Performance 可电镀,可焊锡 / Electroplatable & Solderable 便于后续封装,焊接制程 细度Fineness ≤8μm 粘度Viscosity 120-260Pa.s Product Features •Excellent High-temperature Sintering Stability: Adopting exclusive nitrogen-protected sintering process at 850°C, the formed copper electrode is dense and non-oxidized with excellent and consistent conductivity, effectively avoiding electrode failure and resistance drift during high-temperature processing. Perfect Adaptation to LTCC Process: The precise viscosity of 230 Pa·s with ideal fluidity and thixotropy is suitable for LTCC precision screen printing, delivering clear and regular printed patterns •without paste overflow or breakage, compatible with multi-layer lamination process. •Superior Comprehensive Performance: The cured layer can withstand long-term high temperature of 200°C with good thermal aging resistance. It supports subsequent electroplating and soldering processes with strong compatibility, meeting the full-process requirements of subsequent device packaging and assembly. •High Adhesion and Reliability: It has excellent bonding force with LTCC ceramic substrates, no delamination or falling off after sintering, and resists thermal and cold shock, ensuring long-term stable operation of precision electronic components. •Good Industrial Adaptability: Stable process parameters and simple operation adapt to assembly line mass production with high yield and controllable production cost. Application Fields Customized for LTCC multi-layer ceramic electronic components, this product is mainly used for the preparation of internal conductive electrodes of various LTCC precision devices, and widely applied in communication, radio frequency, vehicle electronics, smart home, precision sensing and other fields. Typical applications include the fabrication of internal conductive electrodes for LTCC ceramic filters, LTCC antennas, LTCC multi-layer ceramic capacitors, ceramic inductors, ceramic packaging substrates, micro precision ceramic electronic devices, serving as the core conductive material for high-end miniaturized and high-reliability ceramic electronic components. User Guide •Storage Environment: Store in a sealed, cool, dry and dark constant temperature environment with temperature controlled at 5~25°C. Keep away from heat sources, fire sources, strong acids, strong alkalis and flammable and explosive chemicals. Avoid high-temperature exposure and low-temperature freezing. •Storage Requirements: Seal the unused paste immediately after opening to prevent oxidation, drying and deterioration caused by air ingress, and avoid impurity mixing which affects printing and sintering performance. •Shelf Life: 6 months for unopened original sealed packaging; it is recommended to use up within 1 month after opening to ensure optimal construction and conductive performance. •Notes: Avoid severe vibration during storage and use. Stir thoroughly before use to ensure uniform viscosity and composition of the paste.