Charge coupled device with diode reset for floating gate output
US4090095A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1977 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D44/454
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An output electrode of a charge coupled device (CCD) register comprises a conductor which is insulated from the substrate over the major portion of its length and which is connected at one end to a diffusion in the substrate of opposite conductivity type than the substrate. A voltage source capacitively coupled to the output electrode supplies a voltage which varies between two levels. In response to one of these levels, the output electrode assumes a potential such that charge signal may accumulate in the region of the substrate beneath the output electrode and at which the semiconductor junction between the diffusion and the substrate is reversed biased. In response to the transition of the voltage from the one to its other level, the junction becomes forward biased and clamps the output electrode to the substrate potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.