Autor: |
Michael W. Putty, Shih-Chia Chang, David Byrum Hicks |
Rok vydání: |
2005 |
Předmět: |
|
Zdroj: |
Proceedings of the International Solid-State Sensors and Actuators Conference - TRANSDUCERS '95. |
DOI: |
10.1109/sensor.1995.717290 |
Popis: |
Polyimide, polymethylmethacrylate (PMMA) and polyester-based polymers were investigated as potential electroplating mold materials. They showed high tensile stress (/spl equiv/10/sup 8/ dyne/cm/sup 2/) after heat treatment at temperatures /spl ges/ 200/spl deg/C. Conventional reactive ion etching techniques together with a trilevel masking scheme was used to delineate the polymer layers. The etch mask used was either spin-on glass or aluminum, and the etch gas was oxygen. With proper power density and etch gas pressure, aspect ratios >5 were obtained. Compatibility issues between RIE and the etch mask materials, as well as between RIE and the plating base materials are discussed. |
Databáze: |
OpenAIRE |
Externí odkaz: |
|