摘要:
On the surface of an insulating film formed on the surface of a semiconductor substrate on which an MOS type semiconductor device to be protected is formed, there are formed a first polycrystal silicon member having input and output terminals and a resistivity lower than 1 K.OMEGA./.quadrature. and a second polycrystalline silicon member having a resistivity lower than 1 K.OMEGA./.quadrature. and being maintained at a fixed potential. This second polycrystalline silicon member faces at least a part of the first silicon member with polycrystalline silicon of a resistivity higher than 100 K.OMEGA./.quadrature. interposed therebetween. The input terminal of the first polycrystalline silicon member is connected to an input pad of the MOS type semiconductor device to be protected and the output terminal of the first polycrystalline silicon member is connected to an input gate of the semiconductor device to be protected. The input gate of the semiconductor device is protected by utilizing the punch-through effect in the interior of the polycrystalline silicon having a resistivity higher than 100 K.OMEGA./.quadrature..
摘要:
In a solid-state imaging device having, in one major surface region of a semiconductor substrate, photoelectric conversion elements which are disposed in a two-dimensional array, vertical switching metal-insulator-semiconductor field effect transistors and horizontal switching metal-insulator-semiconductor field effect transistors which select the photoelectric conversion elements, and vertical and horizontal scanning circuits which turn the switching transistors "on" and "off," a solid-state imaging device characterized in that the vertical switching metal-insulator-semiconductor field effect transistors which are not selected are placed into a deeper cutoff state, i.e., the major surface regions of the semiconductor substrate corresponding to gate electrodes of these vertical switching metal-insulator-semiconductor field effect transistors are placed at an accumulation level.
摘要:
A MOS type field effect transistor has an electrode, which is in the neighborhood of, but not in contact with, the drain diffusion region and is electrically connected with the surface portion of the semiconductor substrate in which the MOS type field effect transistor is formed, and whose potential is held at the rear surface potential of the semiconductor substrate, i. e., the substrate bias potential.
摘要:
A semiconductor device which is provided, for the purpose of eliminating parasitic MOSFETs formed between at least two circuit elements (such as MOSFET, TRANSISTOR, RESISTOR, and the like) on a semiconductor substrate, with a high impurity concentration layer of the same conduction type as the substrate in a manner such that the layer is not only in the semiconductor substrate between said circuit elements but is also partially overlapped by the circuit element regions.
摘要:
An electronic circuit device has a high-density mount board (2), on which are disposed a microcomputer (3) and random access memory (7) which are connected to each other through an exclusive memory bus (12) for high-speed data transfer, a programmable device (8) which is a variable logic circuit represented by FPGA, and an electrically-rewritable nonvolatile memory (16) which can store the operation program of the microcomputer. The high-density mount board has external mounting pins on the bottom surface so that it can be mounted on a mother board in the same manner as a system on-chip multi-chip module. With an intended logic function being set on the programmable device, a hardware-based function to be realized by the electronic circuit device can be simulated. With an operation program being written to the nonvolatile memory, a software-based function to be realized can be simulated. Consequently, the device facilitates the debugging at early stages of system development, configures a prototype system, and contributes to the time reduction throughout the system development, prototype fabrication and large-scale production.
摘要:
This portable terminal comprises, a first panel at least having a display, a second panel at least having a keyboard and a hinge unit attached on both the first panel and the second panel, wherein the hinge unit comprises both rotating mechanism around a center axis of said hinge unit and sliding mechanism in the longitudinal direction along the center axis of the hinge unit. The panels are electrically connected by interconnection scheme having both sliding contacts and rotating contacts. The scheme saving net numbers of keys is realized by the introduction of a convertible key concept corresponding to state of either that the portable terminal is used in a slid form as a wireless voice telephone or that it is used in a rotated form as a terminal making text data like a personal computer.
摘要:
An electronic circuit device has a high-density mount board (2), on which are disposed a microcomputer (3) and random access memory (7) which are connected to each other through an exclusive memory bus (12) for high-speed data transfer, a programmable device (8) which is a variable logic circuit represented by FPGA, and an electrically-rewritable nonvolatile memory (16) which can store the operation program of the microcomputer. The high-density mount board has external mounting pins on the bottom surface so that it can be mounted on a mother board in the same manner as a system on-chip multi-chip module. With an intended logic function being set on the programmable device, a hardware-based function to be realized by the electronic circuit device can be simulated. With an operation program being written to the nonvolatile memory, a software-based function to be realized can be simulated. Consequently, the device facilitates the debugging at early stages of system development, configures a prototype system, and contributes to the time reduction throughout the system development, prototype fabrication and large-scale production.
摘要:
A wiring substrate is manufactured in short TAT.Wirings of the wiring substrate are formed by an exposure treatment using a photomask which has shade patterns each containing at least nano particles and a binder.
摘要:
CMOS logic LSI comprises, as a part thereof, n-channel MISFET's (Qn), p-channel MISFET's (Qp) and a first-layer wiring (11) to a third-layer (13) formed on a main surface of a silicon substrate (1), and as another part, a fourth-layer wiring (14) to a seventh-layer wiring (17) formed on a main surface of a glass substrate (30) different from the silicon substrate (1). The main surface of the silicon substrate (1) and the main surface of the glass substrate (30) are arranged in face-to-face relation with each other, and a plurality of microbumps (20A) formed at the uppermost portion of the silicon substrate (1) and a plurality of microbumps (20B) formed at the uppermost portion of the glass substrate (30) are electrically connected, thereby constituting the CMOS logic LSI as a whole.
摘要:
A semiconductor device including a nonvolatile memory unit and a variable logic unit mounted on a chip is configured to achieve higher speed operation at a lower voltage. The semiconductor device includes a nonvolatile memory unit comprising a plurality of rewritable nonvolatile memory cells and a variable logic unit whose logical functions are determined, according to logic constitution definition data to be loaded into storage cells thereof. A nonvolatile memory cell essentially has a split gate structure composed of a selecting MOS transistor and a memory MOS transistor and constructed such that the dielectric withstand voltage of the gate of the selecting MOS transistor is lower than that of the memory MOS transistor or the gate insulation layer of the selecting MOS transistor is thinner than that of a high-voltage-tolerant MOS transistor. Because the selecting MOS transistor has a high Gm, a sufficiently great current for reading can be obtained.