Ultra fast shift register using resonant tunnel diodes
US5930323A · kind A · utility
24Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Aug 26, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5614
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A high speed digital static shift register includes a series-connected pair of resonant tunneling diodes (RTDs) 22, 24 to achieve a bistable operating state. A clocked switch 20 provides the means of setting the binary state of this bistable pair. In order for one bistable pair to drive a following pair, a method of providing isolation and gain using a buffer amplifier 26 between the two pairs of RTDs is also provided. In one embodiment, the buffer amplifier comprises enhancement FET 30 and depletion load FET 28.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.