激光烧结厚膜正温度系数热敏电阻浆料的研究

蔡志祥; 李祥友; 胡乾午; 曾晓雁

中国激光, 2009, 36 (4): 1011, 网络出版: 2009-04-27

激光烧结厚膜正温度系数热敏电阻浆料的研究

Study of Laser Sintering of Thick-Film Positive Temperature Coefficient Thermistor Paste

论文大纲

蔡志祥 ^*李祥友胡乾午曾晓雁

作者单位

华中科技大学光电子科学与工程学院武汉光电国家实验室(筹)激光部，湖北武汉 430074

摘要

采用激光烧结厚膜电子浆料技术，在三氧化二铝陶瓷基板上制备厚膜正温度系数(PTC)热敏电阻。研究了激光工艺参数以及后续热处理温度对PTC热敏电阻线宽、形貌和性能的影响规律。激光烧结制得的厚膜PTC热敏电阻最小线宽为40 μm，电阻温度系数(TCR)可达2965×10-6/℃，其性能与传统的炉中烧结相当。激光功率密度和后续热处理温度对PTC热敏电阻方阻和电阻温度系数影响较大，并都存在一个最佳值。

Abstract

Thick-film positive temperature coefficient (PTC) thermistor on Al2O3 ceramic substrate was prepared by laser sintering of thick-film electronic paste. The effects of laser processing parameters and the temperature of post heat processing on thick-film PTC thermistor width, surface microstructure and performance were studied. The minimum linewidth of thick-film PTC thermistor by laser sintering is 40 μm. The temperature coefficients of resistivity (TCR) of PTC thermistor is around 2965×10-6/℃, and the performance is equivalent to traditional oven-fired electrical paste. The laser power density and the temperature of post heat processing have great effect on the sheet resistivity and TCR of PTC thermistor, and there exist optimum values for these parameters.

参考文献

[1] . . A characterization of thick-film PTC resistors[J]. Sensors and Actuators A, 2005, 117: 256-266.

[2] 季凌飞, 杜新宇, 付宗义等. 多种功能陶瓷的激光烧结技术[J]. 中国激光, 2007, 34(s1): 31～35

Ji Lingfei, Du Xinyu, Fu Zongyi et al.. Laser sintering technique for functional ceramics [J]. Chinese J. Lasers, 2007, 34(s1): 31～35

[3] 付宗义, 季凌飞, 蒋毅坚. 激光烧结锆钛酸钡压电陶瓷[J]. 中国激光, 2007, 34(s1): 125～127

Fu Zongyi, Ji Lingfei, Jiang Yijian. Laser sintering of Ba(Ti0.95Zr0.05)O3 piezoelectric ceramics [J]. Chinese. J. Lasers, 2007, 34(s1): 125～127

[4] . Chung, S.Ko. Damage-free low temperature pulsed laser printing of gold nanoinks on polymers[J]. ASME J. Heat Transfer, 2005, 127: 724-732.

[5] Edward Kinzel, Hjalti Sigmarsson, Xianfan Xu et al.. Selective laser sintering of microwave components[C]. Proceedings of International Symposium on Microelectronics, International Microelectronics and Packaging Society(IMAPS), Philadelphia, USA, 2005, 691～699

[6] 李祥友，祁小敬，曾晓雁. 玻璃基板激光微细熔覆柔性布线技术研究[J]. 中国激光，2005，32(5):713～717

Li Xiangyou, Qi Xiaojing, Zeng Xiaoyan. Study of conductor fabrication by laser micro-cladding electronic pastes on glass substrate [J]. Chinese J. Lasers, 2005, 32(5):713～717

[7] 李慧玲，曾晓雁. 搭接量对激光微细熔覆柔性直写厚膜电阻组织性能的影响[J]. 中国激光，2005，32(11):1554～1560

Li Huiling, Zeng Xiaoyan. Effect of overlapped spaces on structure property of thick-film resistors flexibly and directly fabricated by laser micro-cladding [J]. Chinese J. Lasers, 2005, 32(11):1554～1560

[8] . 激光微细熔覆快速原型制造厚膜电感元件[J]. 电子元件与材料, 2006, 25(8): 46-49.

. Study on thick film inductors fabricated by laser micro-cladding and rapid prototype[J]. Electronic Components & Materials, 2006, 25(8): 46-49.

[9] 王少飞，曹宇，王小宝等. 激光微细熔覆快速制造微加热器阵列[J]. 中国激光，2007，34(11):1567～1570

Wang Shaofei, Cao Yu, Wang Xiaobao et al.. Microheater array fabrication by laser micro-cladding method [J]. Chinese J. Lasers, 2007, 34(11):1567～1570

[10] 代青龙, 王小宝, 蔡志祥等. 激光微熔覆法制备空芯薄膜电感的研究[J]. 中国激光, 2007, 34(s1): 231～234

Dai Qinglong, Wang Xiaobao, Cai Zhixiang et al.. Study of thin film inductor with air core fabricated by laser micro-cladding method [J]. Chinese J. Lasers, 2007, 34(s1):231～234

[11] 李祥友，蔡志祥，曹宇等. 基于微细笔和激光微熔覆的设备研制[J]. 应用激光, 2007，27(2):81～84

Li Xiangyou, Cai Zhixiang, Cao Yu et al.. Equipment manufacture based on laser micro-cladding & micropen[J]. Applied Laser, 2007, 27(2):81～84

蔡志祥, 李祥友, 胡乾午, 曾晓雁. 激光烧结厚膜正温度系数热敏电阻浆料的研究[J]. 中国激光, 2009, 36(4): 1011. Cai Zhixiang, Li Xiangyou, Hu Qianwu, Zeng Xiaoyan. Study of Laser Sintering of Thick-Film Positive Temperature Coefficient Thermistor Paste[J]. Chinese Journal of Lasers, 2009, 36(4): 1011.

激光烧结厚膜正温度系数热敏电阻浆料的研究

关于本站 Cookie 的使用提示

全站搜索

激光烧结厚膜正温度系数热敏电阻浆料的研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索