Selective Doping of Chemically Sensitive Layers on a Multisensing Chip

Autor: Jing Li, Jiří Janata, Karel Domanský
Rok vydání: 1997
Předmět:
Zdroj: Journal of The Electrochemical Society. 144:L75-L78
ISSN: 1945-7111
0013-4651
DOI: 10.1149/1.1837558
Popis: A method of selectively doping the polyaniline gates of chemically sensitive field-effect transistors (CHEMFETs) has been demonstrated. Activated and inactivated gates located on the same chip were exposed to a solution containing palladium. The activated gate was doped by palladium by the electroless relaxation process but the inactivated gate was not modified. High selectivity of the doping process was proved by exposing the devices to hydrogen. The method has potential applications in manufacturing single-chip heterogeneous microsensor arrays.
Databáze: OpenAIRE