The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1993
Filed:
Dec. 03, 1991
Gregory J Dunn, Tewksbury, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A method of fabricating a field-effect device having a gate dielectric of reoxidized nitrided oxide (RNO) provides an inversion layer mobility much higher than that of conventional RNO devices. A conductivity structure such as a metal oxide semiconductor field-effect transistor (MOSFET) is formed in a semiconductor substrate and provided with a gate dielectric of RNO. The formation of the device may or may not make use of rapid thermal processing techniques. Once formed, the device is irradiated with ionizing radiation. A voltage potential may be maintained across the gate dielectric during irradiation to further improve the inversion layer mobility. Post-radiation annealing is then performed at a controlled temperature.