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4578694 |
Inverter circuit provided with gate protection
An integrated circuit serving as an E/D type inverter circuit and provided with a gate-protection circuit. The inverter circuit is constructed of an E type MOSFET having a gate coupled to an input...
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4551779 |
Semiconductor switching circuit with an overcurrent protection
A semiconductor switching circuit using power MOS transistor as a switching element a drain thereof being connected to a DC power supply through a load and a source thereof being grounded. The...
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4527213 |
Semiconductor integrated circuit device with circuits for protecting an input section against an external surge
A semiconductor integrated circuit device has circuits for protecting an input section against an external surge. The device comprises an input terminal, a first resistor connected at one end to...
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4509067 |
Semiconductor integrated circuit devices with protective means against overvoltages
An additional N + region is provided in a P type substrate adjacent to a protective N + resistor region with an insulating layer and metal layer interposed between the N + region and the N + ...
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4481521 |
Insulated gate field effect transistor provided with a protective device for a gate insulating film
An improved protective device for the gate insulation of an integrated-gate field effect transistor (IGFET) is disclosed that does not breakdown under spike-like input voltages. The protective...
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4456939 |
Input protective circuit for semiconductor device
An input protective circuit of MIS type device is used by applying reverse bias voltage to a semiconductor substrate and a variable-conductivity element is connected between the input terminal of...
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4447747 |
Waveform generating apparatus
Waveform generating apparatus for synthesizing a non-linear waveform by sampling voltage levels along a series string of resistances. The series string of resistances is a linear resistance...
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4437135 |
Semiconductor integrated circuit device
In the past, it has been a problem in integrated circuits using MOSFETs that the gate insulating film of a transmission gate MOSFET is broken down when an abnormally high voltage such as is caused...
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4408245 |
Protection and anti-floating network for insulated-gate field-effect circuitry
A first IGFET functioning as a pull-up or pull-down transistor is formed in parallel with one of a pair of gated diodes. The first IGFET-diode combination is connected to the gate electrode of a...
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4400711 |
Integrated circuit protection device
Disclosed is a protection circuit which may be used, for example, in a television receiver to protect circuitry formed within an integrated circuit from damage due to excessively high voltage...
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4385337 |
Circuit including an MOS transistor whose gate is protected from oxide rupture
A protected MOS transistor circuit includes an input MOS transistor and a depletion mode MOS transistor having a drain-source current path connected between ground and the gate of the input MOS...
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4342045 |
Input protection device for integrated circuits
A new input protection device for integrated circuits in which the metal-semiconductor contact between a metal line from a metal input pad and doped semiconductor region in the substrate leading to...
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4288829 |
Protective circuit on insulating substrate for protecting MOS integrated circuit
A MOS integrated circuit comprises a MOS IC body including at least one MOS transistor made of an island-like semiconductor layer formed on an insulating substrate, and a protective circuit...
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4282556 |
Input protection device for insulated gate field effect transistor
An input protection device comprising at least one pair of N and P type MOSFETs having their conduction paths series connected between a source of operating potential and the input of the circuit...
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4101922 |
Field effect transistor with a short channel length
A field effect transistor with a MIS gate arrangement having a source and drain formed in a semiconductor body and including an electrically conductive region additionally provided which lies...
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4061928 |
Circuit arrangement for the protection of inputs of integrated MOS circuits
A circuit arrangement for the protection of inputs of integrated MOS circuits against excessive voltages, for example as a consequence of static charges, includes a first circuit means connected to...
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4057844 |
MOS input protection structure
A breakdown preventing protection structure for an insulated gate field effect semiconductor device is disclosed for limiting input voltages to levels not substantially exceeding the supply...
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4037140 |
Protection circuit for insulated-gate field-effect transistors (IGFETS)
The gate of an IGFET, which is directly connected to the input terminal of a circuit is protected by means of first and second diodes connected between the gate and first and second points of...
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3947727 |
Protection circuit for insulated-gate field-effect transistors
Two current-carrying paths are connected in parallel between a signal input terminal and an internal node to which are connected the gate electrodes of insulated-gate field-effect transistors to be...
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3886001 |
Method of fabricating a vertical channel FET resistor
A large value resistor is formed during the standard processing steps in the fabrication of a monolithic integrated circuit device, the resitor being formed by a vertical channel FET, the channel...
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3787717 |
OVER VOLTAGE PROTECTION CIRCUIT LATERAL BIPOLAR TRANSISTOR WITH GATED COLLECTOR JUNCTION
An over voltage protection circuit, especially adapted for the protection of field effect transistor gate dielectric material and other circuit structures against high voltage, high peak current,...
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3777216 |
AVALANCHE INJECTION INPUT PROTECTION CIRCUIT
A circuit is provided for protecting an insulated gate field-effect transistor (IGFET) circuit from damage caused by spurious, high voltage input resulting primarily from static charge. The...
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3676742 |
MEANS INCLUDING A SPARK GAP FOR PROTECTING AN INTEGRATED CIRCUIT FROM ELECTRICAL DISCHARGE
An integrated circuit chip has one or more semiconductor devices and one or more bonding pads on the chip. The one or more bonding pads are electrically coupled to the semiconductor devices. A...
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3473094 |
INTEGRATED ARRANGEMENT FOR INTEGRATED CIRCUIT STRUCTURES
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3407339 |
Voltage protection device utilizing a field effect transistor
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