摘要:
Diffusion self-aligned MOS transistors are applied to a solid state image sensing device so as to form in a self-alignment manner control regions (80) in which reading of signal charges from photosignal detecting regions (70) formed on a semiconductor (1) to charge transfer regions (30) is controlled.
摘要:
The invention relates to a charge-coupled device, more particularly a sensor of the so-called accordion principle, in which the charge packets are stored with a very high density and, in order to prevent signal mixing, are transported with a lower density. The logic circuits required for driving the sensor is integrated in the chip itself.
摘要:
In a solid state image sensing device of p-conductivity type well, photo-electro converting region (1) are configurated to have larger area as depth increases, so that excessive electric charges generated in the p-conductivity type well are easily transferred from expanded peripheral parts (7) at the bottom (1b) to channel (3), without being undesirably transferred downward through thin p-conductivity type region (6) to substrate (4), and smear electric charges which has been generated in a thin p-conductivity type well under the photo-electro converting region (1) in the conventional device is suppressed, to effectively decrease the smear phenomenon.
摘要:
@ The invention relates to a charge-coupled image sensor of the line transfer type comprising a number of parallel lines (2-6) which are each constituted by an n-phase CCD. An electrode (12-16) of each CCD is arranged parallel to this CCD separately for each CCD. The other (n-1) electrodes (17-20) extend transversely to the charge transport direction over all CCD's. The first-mentioned electrode (12-16) is used as a selection gate and is moreover used, depending upon the applied voltage, as an integration gate or as a blocking gate during the integration period.
摘要:
A charge coupled device includes a transfer channel (32) having an n-type region (32A) formed in the surface area of a p-type silicon substrate (30) and a plurality of electrodes formed over and insulated from the transfer channel (32) and arranged in the direction in which the transfer channel extends. The charge coupled device further includes an n + -type region (32B) formed in the n-type region (32A) with an impurity concentration higher than that of the region (32A).
摘要:
In a charge transfer device (Figure 1) an auxiliary charge store and gate (G A ) is provided adjacent to the devices input (9) - ie adjacent to the device source (S), or to the device first store (beneath G s ), or to both. In order to provide background subtraction, charge is transferred back and forth. under auxiliary gate control, between the device input (9) and the auxiliary store (beneath G A ) many times during each period of charge integration and a fixed increment of charge is removed for each such transfer. The total charge subtracted each integration period is dependent on the number of transfers; this latter is determined by the frequency of a control signal applied to the auxiliary gate (G A ). This frequency may be set manually, or may be servoed by output circuitry in order to set an automatic adaptive threshold.
摘要:
In a CCD, especially in an image sensor device, the information density can be doubled in that the electrodes (21, 22, 31, 32...) are switched separately between a clock signal and a reference signal. Clock signals and reference signals are obtained as output signals of a shift register (13) controlled by a multi-phase clock, which is realized, for example, in C-MOS technology. Information at the input terminal (107) of the first stage (101) of the shift register (13) determines, after having been passed on or not having been passed on depending upon the clock pulse signals of the register clock, the output signal of the next stages (101) of the shift register (13) and hence the voltage variation at the electrodes (21, 22, 31, 32...) connected to the outputs (113) of the stages (101).