摘要
重点研究印刷工艺、烧结工艺、激光调阻工艺中影响电阻稳定性的因素。在印刷工艺环节中,发现不同厂家生产的电阻浆料的电阻阻值稳定性有所不同,而对于同一厂家生产的电阻浆料印刷试验片,电阻厚度越厚,电阻稳定性越好。在烧结工艺过程中,正常曲线下烧结的电阻实验片降温速率慢,电阻稳定性越好。同时在烧结气流量稳定的情况下,电阻浆料充分参与氧化还原反应,电阻稳定性好。激光调阻工艺中,激光功率,激光频率以及光斑重复率都对电阻稳定性有一定的影响。总之,在生产过程中确保印刷、烧结、激光调阻工艺参数精益求精,使厚膜电阻达到较高的稳定性,进而才能提高产品合格率。
Focus on the factors affecting the stability of the resistors in the printing process,sintering process,and laser trimming process.In the printing process,it was found that the resistance resistance of the resistance paste produced by different manufacturers was different,and for the resistance paste printing test piece produced by the same manufacturer,the thicker the resistance,the better the resistance stability.During the sintering process,the temperature drop rate of the sintered test piece under the normal curve is slow,and the resistance stability is better.At the same time,in the case of stable flow rate of the sintering gas,the resistive slurry fully participates in the redox reaction,and the resistance stability is good.In the laser trimming process,the laser power,laser frequency and spot repetition rate all have a certain influence on the resistance stability.In short,in the production process to ensure that the printing,sintering,laser adjustment process parameters are refined,so that the thick film resistance to achieve higher stability,in order to improve product qualification.
作者
王丽莎
刘利
任荣
薛静蓉
Wang Lisha;Liu Li;Ren Rong;Xue Jingrong(Shanxi Huajing Micro-Electronic Co.Ltd.,Xi’an Shaanxi,710065)
出处
《电子测试》
2019年第21期81-83,52,共4页
Electronic Test
关键词
厚膜电阻
稳定性
影响因素
Thick film resistors
stability
Influencing factors
