A study for the effects of milling condition on the characteristics of ultra-thin multilayer ceramic capacitors

• Main Authors: HUANG, CHIEN-CHENG, 黃建程
• Other Authors: TSAI, CHENG-HSIEN
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/ruwhuj

碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系碩士在職專班 === 105 === Nowadays the MLCC industry is heading to the technologies of small size, thinner film, and higher stacking layers. Due to the difficulties of the process technology, the products are frequently have low yield rate and quality issues while manufacturing. This research will discuss the front process of a MLCC, slurry making. By introducing the different milling speed to find out the influence to MLCC characteristics, and finalize the optimal milling condition from the results of the MLCC electrical properties measurement and accelerated life test. From the results, it showed that the milling speed of 8 m/s gets the more homogeneous particle size distributed slurry, and there is no abnormal particle growth after sintering the samples. From measuring the properties of the capacity (Cap.) and the dissipation factor (Df), the stats were better and well-distributed. And from measuring the properties of the insulation resistance (I.R.) and breakdown voltage (BDV), it also performed better than that by other milling conditions, which obviously improved the product reliability, and raise the yield of MLCC electrical properties to 91.5 % from it was originally, 79.6 %.