Accession Number:

ADA326761

Title:

In-Situ Testing of Radiation Effects on VLSI Capacitors Using the NPS Linear Accelerator.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Salsbury, Duane

Report Date:

1996-12-01

Pagination or Media Count:

109.0

Abstract:

The study of radiation effects on VLSI components is a very heavily researched topic. There are several reasons for this research, one of which is the application of VLSI components to space related vehicles. One component essential to Analog VLSI elements is the capacitor. The purpose of this paper is to better define the actual effects of radiation on the MOS VLSI capacitor. The radiation testing is conducted using the NPS electron linear accelerator. The data is taken while the capacitor is being exposed to an accumulating dose of electron radiation. The capacitance values are monitored using the parameter changes of a specially designed low pass filter circuit. The 3 dB breakpoint frequency of this filter is used to calculate the actual capacitance. The capacitance value is then related to the accumulated radiation dose in Rads. The results are very important and needed, especially if off-the-shelf components are to be utilized in the design of spacecraft systems.

Descriptors:

• *VERY LARGE SCALE INTEGRATION
• *RADIATION EFFECTS
• *CAPACITORS
• SPACE ENVIRONMENTS
• SPACE SYSTEMS
• OFF THE SHELF EQUIPMENT
• THESES
• CHIPS(ELECTRONICS)
• TRAPPING(CHARGED PARTICLES)
• METAL OXIDE SEMICONDUCTORS
• PHOTOIONIZATION
• SOLAR RADIATION
• ELECTRON IRRADIATION
• LOW PASS FILTERS
• RADIATION DOSAGE
• CAPACITANCE
• ELECTRON ACCELERATORS
• LINEAR ACCELERATORS

Subject Categories:

• Electrical and Electronic Equipment
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE