Electronic components matrix of enhanced reliability and method for locating a fault in the matrix

摘要

Enhancement of the reliability of an imaging device comprising several pixels is provided, each of the pixels comprising several first blocks of electronic components organized as a matrix and joined by links to row buses and column buses of the matrix allowing the powering and control of each of the first blocks for its nominal operation. Each of the pixels moreover comprises, associated with the first block, programmable means for disconnection of the first block from the at least one of the buses. Locating of a fault in a device is also provided, the fault occurring in one of the first blocks and leading to a generalized fault in several first blocks.

主权项

1. An electronic imaging device comprising several pixels, each of the pixels comprising a first block of electronic components organized as a matrix and joined by links to row buses and column buses of the matrix allowing the powering and control of each of the first blocks for its nominal operation comprising an acquisition phase, a read-out phase and a reset to zero phase, each of the pixels further comprising, associated with the first block, programmable means of disconnection of the first block from at least one of the buses, each of the programmable means for disconnection comprising a second block of programmable electronic components and at least one switch, piloted by the second block and making it possible to isolate the first associated block from the at least one of the buses, wherein the second block is intended to be programmed outside of the nominal operation to retain the order to isolate the first associated block in the device memory.