Optimisation of silver paste for flexography printing on LTCC substrate

详细信息	查看全文 | 推荐本文 |

• 作者：Rita Faddoul^a ; ^{rita.faddoul@lgp2.grenoble-inp.fr} ; Nadè ; ge Reverdy-Bruas^a ; ¹ ; ^{nadege.reverdy@pagora.grenoble-inp.fr} ; Anne Blayo^a ; Thomas Haas^b ; Christian Zeilmann^b
• 刊名：Microelectronics Reliability
• 出版年：2012
• 期刊代码：128_00262714
• 类别：et
• 出版时间：July, 2012
• 卷：52
• 期：7
• 页码：1483-1491
• 文件大小：3260 K

摘要

The originality of this work consists in printing on ceramic tapes conductive silver tracks that reach a low resistivity by flexography process. Flexography is a solution for the mass production of multimaterial microdevices offering a huge potential of commercialisation in the near future. In order to test the flexography printing process for microelectronic application on Low Temperature Cofired Ceramic (LTCC) tapes, a screen printing paste was optimised to reach flexography printing requirements. Ink with 30%silver per weight was prepared and printed by flexography, roll to roll (R2R) process, on LTCC substrates. Three to five print passes were performed. Printed lines were sintered during 10 min at a peak temperature of 850 掳C under normal air atmosphere. Conductive lines, with a mean width of 190 渭m, a mean thickness of 1.50 渭m and a resistivity of 2.8 脳 10^鈭? 惟 m close to bulk silver resistivity, were achieved after sintering.