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7619863 |
Gated thyristor and related system and method
An embodiment of a protection circuit, comprising a first PNP-type bipolar transistor and a second NPN-type bipolar transistor, the base of the first transistor being connected to the collector of...
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7619862 |
Electrostatic discharge protection circuit for high voltage input pad
An electrostatic discharge protection circuit includes a high-voltage supply terminal (VDD), an input/output (IO) pad, and a first shunting transistor that can discharge electrostatic charges...
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7616417 |
Semiconductor device including protection circuit and switch circuit and its testing method
In a semiconductor device including a semiconductor element to be protected having first and second electrodes, and a protection circuit coupled between the first and second electrodes, a switch...
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7616416 |
System to protect electrical fuses
A method and system is disclosed for protecting electrical fuse circuitry. A electrical fuse circuit with electrostatic discharge (ESD) protection has at least one electrical fuse, a programming...
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7616415 |
Electrostatic discharge protection circuit and electrostatic discharge protection method of a semiconductor memory device
An electrostatic discharge (ESD) protection circuit protects a gate oxide of elements in an internal circuit against ESD. During an ESD test, if the sum of driving voltages of ESD protectors...
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7616414 |
ESD protection circuit for high speed signaling including T/R switches
An ESD protection circuit for a transistor having a drain and source coupled to high-speed signaling pins of an integrated circuit includes a first string of clamping elements and a second string...
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7609502 |
Protective device
A protective device for transmitting electromagnetic signals of a desired frequency band from a source to a load comprises an outer conductor, an inner conductor extending coaxially within the...
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7609495 |
Electrostatic discharge (ESD) protection arrangement and ESD protection method
AN ESD protection arrangement is provided which comprises an ESD protection device coupled between a terminal pad of an integrated semiconductor circuit and a supply voltage rail and a compensation...
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7609494 |
Voltage protection system and method for a powered device
A powered device includes a voltage protection circuit, two outputs, a switch, and a snubber circuit. The two outputs of the integrated circuit may be coupled to an external transformer. The...
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7609493 |
ESD protection circuit and method for lowering capacitance of the ESD protection circuit
An electrostatic discharge (ESD) protection circuit and a method for reducing capacitance in the ESD protection circuit. A pair of gated diodes are connected in series, wherein the anode of one of...
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7608894 |
Electrostatic discharge protection device
An electrostatic discharge (ESD) protection device for providing an ESD path between two circuitries is provided. Each circuitry has a power supply terminal and a ground terminal. The protection...
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7606016 |
Power amplifier protection
A power amplifier protection circuit that includes protection circuitry to variably shunt an input radio frequency (RF) signal to AC ground, turn off bias to an output transistor of a power...
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7606013 |
Electro-static discharge protection circuit
An electrostatic-discharge protection circuit having a low level of current leakage from a first power supply to a second power supply. An example protection circuit includes a timing element that...
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7606012 |
Semiconductor device and designing method for the same
A semiconductor device has a semiconductor circuit provided on a semiconductor substrate. The semiconductor circuit has a source, a drain, a gate and a wiring connected to one of the source, the...
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7605431 |
Electrostatic discharge protection apparatus for semiconductor devices
The present invention provides several embodiments with layout patterns for ESD protection. An apparatus with a layout pattern may be configured to protect I/O pads or the power rail. The layout...
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7599160 |
Electrostatic discharge protection circuits
An electrostatic discharge (ESD) protection circuit is provided. A transistor is coupled between a node and a ground, and has a gate coupled to the ground. A diode chain is coupled between the node...
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7599159 |
Voltage-resistant MOS switch
A voltage-resistant switch comprising a first switching contact and a second switching contact, and an MOS switching transistor having a source terminal, a drain terminal and a gate terminal,...
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7598843 |
Very high frequency transponder, in particular a UHF transponder, including a protection against electrostatic discharges
The UHF transponder includes protection against electrostatic discharge (ESD) formed by the modulation transistor (T 1 ) and additional control means ( 20 ) for said transistor which fulfils two...
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7595968 |
Circuit to reduce internal ESD stress on device having multiple power supply domains
An ESD protection circuit is designed on an integrated circuit ( 100 ) having a first power supply bus ( 106 ) and a second power supply bus ( 108 ). The circuit includes a first logic gate ( 116,...
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7593206 |
Lightening conductor
A lightening conductor ( 10 ) for lightning protection of structures ( 37 ), particularly of mobile structures ( 37 ), comprises a conduit ( 18 ) connected to a mast ( 12 ) and provided for...
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7593204 |
On-chip ESD protection circuit for radio frequency (RF) integrated circuits
Methods and apparatus for ESD protection of pseudomorphic high electron mobility transistor (pHEMT) circuitry are described. In one method, an ESD surge is detected at a trigger circuit. An ESD...
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7593203 |
Selective deposition of embedded transient protection for printed circuit boards
Protection for sensitive components on a printed circuit board by selectively depositing transient protection material on one or more layers of the printed circuit board is disclosed.
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7593202 |
Electrostatic discharge (ESD) protection circuit for multiple power domain integrated circuit
An integrated circuit ( 300/400 ) includes first and second power domains and a bank of input/output (I/O) cells ( 305/405 ) coupled to the first and second power domains. The bank of I/O cells (...
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7593201 |
Semiconductor integrated circuit
A protection circuit with suppressed erroneous operation due to power source fluctuation has a first resistor and a capacitor connected in series between a power source line and a ground line, an...
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7589945 |
Distributed electrostatic discharge protection circuit with varying clamp size
An integrated circuit includes a first I/O cell disposed at a substrate, the first I/O cell including a first electrostatic discharge (ESD) clamp transistor device. The first ESD clamp transistor...
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7589944 |
Electrostatic discharge protection structures for high speed technologies with mixed and ultra-low voltage supplies
An electrostatic discharge (ESD) protection circuit in a semiconductor integrated circuit (IC) having protected circuitry. In one embodiment, the ESD protection circuit includes a pad adapted for...
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7589577 |
Circuit adjustable after packaging having a voltage limiter and method of adjusting same
A circuit adjustable after packaging includes a functional circuit supplied with a power potential and a reference potential and has at least one parameter adjustable by programming at least one...
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7589562 |
I/O cell capable of finely controlling drive strength
Disclosed is an I/O cell for providing an output pad with an output signal, including a first drive circuit for providing the output pad with an output signal having a drive strength which is equal...
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7586721 |
ESD detection circuit
An ESD detection circuit which includes: a triggering circuit for generating an ESD trigger signal when the ESD detection circuit is in ESD mode; a bias circuit for providing at least a first bias...
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7586720 |
Electrostatic discharge protection device
A compact ESD protection device is described that uses the reverse breakdown voltage of a base-emitter junction as a trigger diode to switch a transistor that shunts the forward bias ESD current to...
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7586716 |
Regulator with shunt over-current by-pass
Controlling the supply voltage with high precision irrespective of variations in threshold. A bypass transistor is connected between power supply terminals and provides a bypass path of an...
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7583486 |
Semiconductor device having protection diode
A semiconductor device includes: a semiconductor element; a protection diode for protecting the semiconductor element from a first reverse voltage applied to the semiconductor element; and a...
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7583485 |
Electrostatic discharge protection circuit for integrated circuits
An electrostatic discharge (ESD) protection circuit for an integrated circuit (IC) that provides ESD protection during an ESD event is disclosed. The electrostatic discharge (ESD) protection...
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7583484 |
Circuit and method for ESD protection
A sensor for electrostatic discharge (ESD) protection includes a voltage divider and a device coupled thereto. The sensor is coupled to an input terminal of the sensor, wherein a voltage drop...
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7582937 |
ESD protection circuit
An ESD protection circuit includes a substrate, diode device, first snapback device, ring structure, second snapback device and a control circuit. The diode device is formed in the substrate. The...
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7580233 |
Protecting circuits from electrostatic discharge
Circuits and methods for protecting a circuit from an electrostatic discharge (ESD) event are disclosed herein. One such method includes detecting when a circuit to be protected is powering up and...
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7579658 |
Devices without current crowding effect at the finger's ends
ESD protection devices without current crowding effect at the finger's ends. It is applied under MM ESD stress in sub-quarter-micron CMOS technology. The ESD discharging current path in the NMOS or...
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7576964 |
Overvoltage protection circuit of output MOS transistor
An overvoltage protection circuit is for a circuit of an output MOS transistor and a load connected in series between a first power supply and a second power supply. The overvoltage protection...
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7576961 |
Electrostatic discharge protection circuit using triple welled silicon controlled rectifier
Provided is an electrostatic discharge (ESD) protection circuit using a silicon controlled rectifier (SCR), which is applied to a semiconductor integrated circuit (IC). A semiconductor substrate...
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7573691 |
Electrical over stress robustness
Protection is provided against electrical surges resulting from Electrical Over Stress conditions, e.g., when interfacing circuits with powered connections. An EOS shunt is activated for as long as...
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7573687 |
Power semiconductor device
A power semiconductor device includes a power semiconductor element, a protection circuit, an inspection terminal, and an electrical conductor. The protection circuit includes multiple zener diodes...
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7573102 |
ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad
In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a...
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7570468 |
Noise immune RC trigger for ESD protection
An ESD protection circuit incorporates an ESD shunt device triggered by an ESD trigger network. In non-powered situations, a first RC time constant in the ESD trigger network, corresponds with the...
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7570467 |
Electrostatic protection circuit
An electrostatic protection circuit being an integrated circuit on a semiconductor substrate and including a first power supply terminal having a predetermined potential VDD, a second power supply...
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7570466 |
Dual mode negative voltage switching
A negative switch may enable switching of two different negative voltages. The switch may include a negative cascode bias generator which biases the gate of a cascade protection device. When the...
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7567414 |
Nanotube ESD protective devices and corresponding nonvolatile and volatile nanotube switches
Nanotube ESD protective devices and corresponding nonvolatile and volatile nanotube switches. An electrostatic discharge (ESD) protection circuit for protecting a protected circuit is coupled to an...
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7566595 |
Method of making and using guardringed SCR ESD protection cell
Methods and circuits are disclosed for protecting an electronic circuit from ESD damage using an SCR ESD cell. An SCR circuit is coupled to a terminal of an associated microelectronic circuit for...
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7564665 |
Pad ESD spreading technique
A system, e.g. an integrated circuit or part, may include a plurality of pads, e.g. digital I/O pads, each comprising a physical pad and associated pad circuit. In case of an ESD event affecting...
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7564664 |
ESD protection circuit for a high frequency circuit
An ESD protection circuit is disclosed. In one embodiment, the ESD circuit is coupled to at least one signal transmission line and a positive and negative supply voltage of an integrated circuit,...
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7564663 |
Active limiter with integrated sensor
An integrated circuit includes a first RF port and a second RF port. A limiter section is disposed between the first RF port and the second RF port and a detector section coupled to an RF signal...
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