Accession Number : ADA130564

Title :   Field Effect Transistor Sensitive to Dipolar Molecules.

Descriptive Note : Interim technical rept.,

Corporate Author : UTAH UNIV SALT LAKE CITY DEPT OF BIOENGINEERING

Personal Author(s) : Blackburn,Gary F ; Levy,Max ; Janata,Jiri

PDF Url : ADA130564

Report Date : 30 Jun 1983

Pagination or Media Count : 14

Abstract : A field effect transistor with metal gate suspended above the gate insulator has been fabricated. Fluid samples can freely penetrate into the gap formed between the metal and the insulator. If the molecules carry an electrical dipole, they will alter the surface potential on these two materials giving rise to a change in the drain current of the transistor. Our preliminary results confirm this mechanism for dipolar molecules such as methanol and methylene chloride. (Author)

Descriptors :   *Field effect transistors, *Gates(Circuits), *Sensitivity, *Energy gaps, Fabrication, Insulation, Mesh, Schematic diagrams, Dipole moments, Fluids, Penetration

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE