Document Type


Date of Award

Summer 9-30-1973

Degree Name

Master of Science in Electrical Engineering - (M.S.)


Electrical Engineering

First Advisor

Raj Pratap Misra

Second Advisor

Roy H. Cornely

Third Advisor

Robert R. Meola


An investigation of semiconductor surface-related phenomena has been undertaken to correlate 1/F noise with drain breakdown in P-channel enhancement MOSFET's. Increases in the intensity of drain current fluctuations at 10Hz and at 1KHz, particularly at the higher frequency, was observed following accelerated life-testing for threshold voltage drift. It was also concluded that mobile ions near the oxide-semiconductor interface produce a sharp increase in fast trapping centers. It was also found that 1/F noise intensity consistently peaked at the threshold of drain breakdown and that it steadily decreased with further increases in drain current. Of all the transistors tested, those with relatively low noise intensity were found to exhibit sharper breakdown characteristics and higher breakdown voltages while those transistors with high noise showed soft breakdown characteristics. It was therefore concluded that the low noise MOS transistors are superior to those with relatively high noise and that the 1/F noise-drain current characteristics may be used in nondestructive testing to determine the approximate drain breakdown voltage.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.