摘要:
A semiconductor integrated circuit adaptable to any logic circuits using a common mask with the exception of a mask of metallic wirings so as to drastically improve performance of custom LSIs. The semiconductor integrated circuit comprises a logic circuit having a plurality of input terminals and at least one output terminal. The logic circuit includes a plurality of circuit blocks of the same circuit construction. Each of the circuit blocks has at least two stages of inverter formed by MOS semiconductor devices and at least one layer of a wiring pattern having a different pattern. The output signal of each block is defined by a predetermined function of an input signal.
摘要:
In an integrated circuit combining a gate array with memory on a single semiconductor substrate, the interconnecting lines are routed in multiple metalization layers. In each layer having both memory and gate-array interconnecting lines, the memory interconnecting lines are routed over the memory area, and the gate-array interconnecting lines are routed in a different direction over the gate-array area. In layers having only gate-array interconnecting lines, some of these lines pass over the memory area, being routed directly above power-supply lines or shield lines provided in the layer just below.
摘要:
A gate array cell architecture is provided with routing tracks at variable track pitches, thereby increasing the density of the architecture. Orientation of the devices in the gate cells perpendicularly to the routing tracks in the second metallization layer provides an increased porosity in this layer. The orientation allows an N channel device to be made smaller than a P channel device within a gate cell, to provide balanced devices. The perpendicular orientation also provides more contact points for source or drain. When the mulitple contacts are used to connect the device to a power source, the multiple contacts reduce the effective resistance and increase the reliability of the devices.
摘要:
In a semiconductor device in which power is supplied from an external power supply system, a first power supply system (11, 12) is connected to first terminals (1, 2) of power supply and ground and a digital inner circuit (8). The inner circuit (8) includes a clock signal generating circuit, a driver for the clock signal, and circuits operating in response to the clock signal. A second power supply system (13, 14) is connected to second terminals (3, 4) of power supply and ground, the input terminal (6), the output terminal (5), and a digital interface circuit (9). The second power supply system (13, 14) is independent of the first power supply system (11, 12). The interface circuit (9) includes a MOS transistor (7) for pulling up or down the input terminal (6) and an output circuit which includes a MOS transistor driving a output terminal. The first power supply system (11, 12) is separated from the second power supply system (13, 14), and the inner circuit (8) is connected to the interface circuit (9) through only signal lines.
摘要:
Disclosed is a BiMOS integrated circuit, which has: a bipolar transistor for output pull-up; a BiMOS hybrid gate buffer section which comprises a MOS transistor for output pull-down which is longitudinally connected to the bipolar transistor, and a MOS transistor for base drive which comprises an output which is connected a base of the bipolar transistor to drive the base and a gate which is connected to an input; and a logical section which comprises at least a CMOS gate, the logical section having an output which is connected to the input; wherein the base drive MOS transistor has an input capacitance less than that of the output pull-down MOS transistor.
摘要:
A semiconductor device formed on a semiconductor chip includes a signal processing unit composed of a plurality of signal processing cells arranged side by side in a horizontal direction, and a plurality of input/output cells each connected to a corresponding one of the signal processing cells in a one-to-one relation. The signal processing unit is located near to one corner of the semiconductor chip, and the input/output cells are uniformly distributed and located along two sides defining the above mentioned corner. Each of the signal processing cells is configured to make it possible that a wiring conductor connecting between the signal processing cell and a corresponding one of the input/output cells is taken out either in an upward vertical direction or in a downward vertical direction from the signal processing cell, in accordance with the side of the semiconductor chip along which the corresponding input/output cell is located.