Large-format photosensitive device and a method of utilization
US4799094A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1985 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Dec 16, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
Abstract
A large-format photosensitive device for detection of radiographic images comprises a semiconductor substrate of lightly n-doped hydrogenated amorphous silicon. On one face of the substrate are supported rectangular picture frame-like pads disposed in a matrix array, each having a central opening and formed of material which provides a rectifying junction with the semiconductor substrate, a layer of insulating material, and a control grid capacitively coupled to the pads. On the other face of the substrate are supported an array of drain electrodes located opposite the central openings of the pads, ladder-type source electrodes which circumscribe the drains, a layer of insulating material, and a conductive pattern for interconnecting all of the drains in a common row of all the columns in the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.