摘要:
A method comprising a computational procedure for obtaining capacitances for three-dimensional geometries which include multiple regions with different dielectric constants. The methodology is not limited to uniform dielectrics. The dielectric regions can also consist of non-uniform and/or anisotropic materials.
摘要:
A scalable and compact computer system of three-dimensional subsystems each having capacitive couplers on its external surfaces for transmitting and receiving electrical signals to and from adjacent subsystems. Each surface having an electrically non-conducting substrate, one or more electrically conducting pads on the substrate, and electrical leads for coupling the pads to the subsystem's circuits. Two adjacent pads, each from a different subsystem, form a capacitive coupler to carry the signals between the subsystems. The pads are covered by a low-loss dielectric material having a large dielectric constant for improved signal transmission. A differential signal may be supported using two capacitive couplers to respectively carry the positive and negative signals of the differential signal. The subsystems might be replaced or left in place when they failed. Additional subsystems might be added to the system to expand its capacity.
摘要:
Disclosed is an interlaced serial-parallel-serial (SPS) charge coupled device (CCD) memory with improved clocking. By performing the interlacing as well as the serial-parallel-serial function with only seven clock pulses, less metallurgy and consequently less space per bit on a semiconductor chip is required. By reducing the number of clock requirements, the supporting logic circuitry is simplified permitting a larger portion of the semiconductor chip area to be used for data bit storage.
摘要:
A charge coupled device analog multiplier is used to weigh the sampled and delayed signals for a transversal filter. The digital filter coefficients for the analog multiplier can be electrically programmed and therefore dynamic time-varying systems, such as matched filters, can be designed with reduced circuit complexity. The digital filter includes means for sampling without destroying an analog signal at various points and providing voltages proportional to each sampled signal. The voltages are separately applied to a charge coupled device analog multiplier which accepts the voltages and provides means for multiplying the digital filter coefficient by the analog voltage. The multiplied sample signal is then dumped into a means for summing all of the weighted sample signals to produce an analog signal modified by the digital filter coefficients.
摘要:
A method and apparatus for thermal modeling of on-chip interconnects using electromagnetic tools to determine a temperature profile across the interconnect structure and the temperature at each node of an equivalent thermal circuit derived from an electrical model.
摘要:
A serial digital-to-analog converter using charge-coupled device technology. The converter comprises, in tandem, an input charge source diffusion, an input charge storage gate, a pair of charge splitting gates and an output charge collecting diffusion. The diffusions and the charge storage and the charge splitting gates are separated from each other by respective control gates.