WANG Wei1, XIONG Bin1, WANG Yue-lin1, et al. Research on wafer-lever vacuum package by glass frit at low temperature[J]. 2012, 31(1): 62-64. DOI: 10.13873/j.1000-97872012.01.029.
低温玻璃浆料圆片级真空封装的研究
摘要
研究了玻璃浆料在低温下真空封装MEMS器件的工艺。封装过程中
采用了丝网印刷技术
丝网的线宽设计为100μm
印刷后玻璃浆料线宽为160μm左右
从而能够减小封装器件的尺寸
节省成本;另外
对玻璃浆料键合工艺做了研究
找到了较好的工艺条件
采用该工艺(预烧结温度425℃
键合温度430℃)
得到的封装结构具有较高的封接强度(剪切力>20 kgf)和良好的真空度
测得的漏率为10-9 cm3/s。
Abstract
Glass frit packaging is important for MEMS devices vacuum packaging.Screen printing is applied in package
and the width of screen is designed as 100 μm to reduce the manufacturing costs.Detail process characterization of glass frit bonding are also discussed.The packaging structure has high bonding strength(shear is more than 20 kgf)and leakage rate is 10-9cm3/s.