THE LARGE AREA PN JUNCTION AS A THREE TERMINAL CIRCUIT ELEMENT
Abstract
A study is made of the large area pn junction as a passive, distributed, 3 terminal device. The analysis assumes a direct analogy between electronic action in the large area pn junction and that in a distributed RC transmission line. Most previous work assumes that a uniform RC line is an adequate representation of the device. However, in typical integrated circuits, the dc voltage level at one end of the large area pn junction invariably differs from that at the other end. The total dc reverse bias across the junction is not constant along the junction interface. This causes the depletion layer capacitance to be nonuniform along the interface. The analysis which follows takes this variation into account. It is shown that for a broad range of bias conditions, the uniform line representation does not introduce sufficient error to justify the more complicated description. The analysis, valid for small excursions from the dc bias levels, used solutions of the transmission line equations to arrive at expressions for the terminal properties of the large area pn junction. A two dimensional analysis is used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 13, 1961
- Accession Number
- AD0277371
Entities
People
- G. Hachtel
- L.o. Hill
Organizations
- University of California, Berkeley