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The electrostatic-focusing Spindt-type field emitter array (FEA) pitch was optimized for an FEA-high-gain avalanche rushing amorphous photoconductor (HARP) image sensor. Simulation results showed that a narrow FEA pitch of less than 2.2 µm deteriorates the electrostatic focusing effect.
NHK, the Japan Broadcasting Corporation, has developed many camera technologies for broadcasting. This article focuses on three of their latest innovations: an 8,000-pixel by 4,000-line high-resolution camera, a high-speed camera that captures images at up to 1 million frames per second, and a high-sensitivity camera that is 50 times more sensitive than conventional broadcasting charge-coupled device...
flat image sensor consisting of a Spindt-type field emitter array (FEA) and a high-gain avalanche rushing amorphous photoconductor (HARP) target has been studied with the aim of developing ultrahigh-sensitivity compact television cameras . This image sensor is called an FEA-HARP sensor. The output signal current of the FEA-HARP sensor is obtained by reading out holes that have accumulated on the HARP...
A flat type image sensor consisting of a field emitter array (FEA) and a high-gain avalanche rushing amorphous photoconductor (HARP) target is developed as the low light imaging compact camera. In this paper, the structure and fundamental characteristics of a prototype 2/3-inch HEED-HARP image sensor are described.
In this paper, an active-matrix planar-type cold electron emitter array development is studied to fulfill the requirement of high-speed response. This emitter array adopts a novel MIS emitter which is termed HEED (High-efficiency Electron Emission Device) and fabricated on a MOS transistor array formed on a silicon wafer with scan driver circuits. HEED's driving voltage is relatively low (about 20V)...
For practical advantages of the HEED (high-efficiency electron emission device) such as a low driving voltage, a high emission current density, especially application to an ultra high sensitive compact image sensor can be expected. A prototype active-matrix HEED image sensor integrated with scanning driver circuits was developed with a HARP (high-gain avalanche rushing amorphous photoconductor) target...
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