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Match Document Document Title
7417838 Semiconductor integrated circuit  
An integrated circuit formed on a semiconductor chip includes voltage regulators for stepping down an externally-supplied power voltage to produce an internal power voltage, and internal circuits...
7417837 ESD protection system for multi-power domain circuitry  
The present invention discloses an IC implemented with ESD protection system. In one embodiment, the includes a first device in a first power domain, and a second device in a second power domain. A...
7414821 Semiconductor integrated circuit device  
Into an internal circuit to operate in a high-frequency band, there is incorporated a protective circuit of a multistage connection which is constructed to include a plurality of diode-connected...
7411767 Multi-domain ESD protection circuit structure  
A multi-domain ESD protection circuit structure is described. The preferred embodiment of the present invention selects power lines of an internal circuit as ESD buses. The power lines of the...
7408752 On-chip ESD protection circuit for compound semiconductor heterojunction bipolar transistor RF circuits  
A low loading capacitance on-chip electrostatic discharge (ESD) protection circuit for compound semiconductor power amplifiers is disclosed, which does not degrade the circuit RF performance. Its...
7408751 Self-biased electrostatic discharge protection method and circuit  
A self-biased electrostatic discharge (ESD) protection circuit for protecting an integrated circuit operating in a normal voltage range that includes both positive and negative voltage levels is...
7405915 Protection circuit against electrostatic discharge in semiconductor device  
An electrostatic discharge protection circuit for use in a semiconductor device includes an electrostatic signal discharge unit for discharging an electrostatic signal; a first electrostatic...
7405914 Electrostatic discharge protection circuit  
An electrostatic discharge (ESD) protection circuit for the protection of an electronic circuit from an ESD event. The electronic circuit, in operation, is provided with a supply voltage and a...
7405913 Semiconductor device having transistor with high electro-static discharge capability and high noise capability  
A semiconductor device in includes a transistor and a surge absorption element such as Zener diode, that are formed on the same substrate and connected in parallel. The surge absorption element has...
7403362 Latch-up restistant ESD protection circuit and method thereof  
The present invention is to provide a latch-up resistant electrostatic discharge (ESD) protection circuit and method thereof, which comprises a clamping circuit being able to discharge when...
7403361 Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit  
In a level conversion circuit mounted in an integrated circuit device using a plurality of high- and low-voltage power supplies, the input to the differential inputs are provided. In a level-down...
7400485 Surge absorber  
A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a resistor portion. The inductor...
7400480 Electrostatic discharge protection circuit  
Integrated circuits are provided that have sensitive circuitry such as programmable polysilicon fuses. Electrostatic discharge (ESD) protection circuitry is provided that prevents damage or...
7397642 ESD protection circuit  
An ESD protection circuit is disclosed. The ESD protection circuit includes a stacked MOS circuit, and a trigger current generator. The object of the stacked MOS circuit is to be the first...
7397641 Apparatus and method for improved triggering and oscillation suppression of ESD clamping devices  
An apparatus for protecting an integrated circuit from electrostatic discharge (ESD) includes an RC trigger device configured between a pair of power rails, a first control path coupled to the RC...
7397280 High-voltage tolerant power-rail ESD clamp circuit for mixed-voltage I/O interface  
A circuit for electrostatic discharge (ESD) protection includes a resistor a capacitor connected in series with the resistor, a first transistor including a gate, the gate being connected to a...
7394638 System and method for a whole-chip electrostatic discharge protection that is independent of relative supply rail voltages and supply sequencing  
The embodiments of the present invention introduced and taught herein are directed to a whole-chip ESD protection arrangement that is independent of relative supply rail voltage and supply...
7394631 Electrostatic protection circuit  
An electrostatic protection circuit including: a first power supply terminal 110 ; a second power supply terminal 112 ; an input-output terminal 111 for an external connection; a P-type MOSFET...
7394630 Electrostatic discharge protection device for mixed voltage interface  
An electrostatic discharge protection circuit that includes at least two transistors connected in a stacked configuration, a first diffusion region of a first dopant type shared by two adjacent...
7391595 System and method for breakdown protection in start-up sequence with multiple power domains  
During start-up of a circuit having a high voltage supply and a low voltage supply, a backup bias generator (BBG) is used to avoid burnout and exceeding a breakdown voltage. The high voltage supply...
7388734 Integrated circiut arrangement  
Integrated circuit arrangement having first and second signal input pads, to which a differential input signal is applied, and first and second signal outputs, at which a differential output signal...
7385793 Cascode active shunt gate oxide project during electrostatic discharge event  
A method and apparatus to provide electrostatic discharge (ESD) protection to electronic circuits using a gate clamp circuit.
7382593 Method of linearizing ESD capacitance  
An ESD protection circuit for an input/output pad of an IC is disclosed with discharge paths to both a power rail and ground. The ESD circuit is arranged with NMOS and PMOS transistors arranged...
7382592 System and method of electrostatic discharge protection for signals at various voltages  
System and method for protecting an integrated circuit. The system includes a first transistor coupled to a first voltage and a second voltage, a second transistor coupled to the gate of the first...
7382591 Cascode protected negative voltage switching  
A double cascode protected switchable voltage source may be used to selectively provide positive or negative voltage sources, for example, to a flash memory. The positive supply may be connected...
7379283 ESD protection circuit with a low snapback voltage that is protected from fast non-ESD voltage spikes and ripples  
A three-terminal snapback device is utilized with a control circuit to provide a low snapback voltage that is protected from non-ESD voltage spikes and ripples. In response to a fast edge, the...
7379281 Bias for electrostatic discharge protection  
An electrostatic discharge protection circuit adapted to reduce an electrostatic discharge event on a line of an integrated circuit. The protection circuit includes an NMOS transistor having a...
7375543 Electrostatic discharge testing  
The present invention provides a system and method for electrostatic discharge (ESD) testing. The system includes a circuit that has a switch coupled to an input/output (I/O) circuit of a device...
7372681 Electrostatic discharge (ESD) protection device with simultaneous and distributed self-biasing for multi-finger turn-on  
An electrostatic discharge (ESD) protection circuit for a semiconductor integrated circuit (IC) that protects core circuitry of the IC during normal operations, and shunts ESD events during...
7372680 Electromagnetic field preventing and protecting circuit of organic electroluminescent display device having a separated structure  
A display device having an electromagnetic field preventing and protecting circuit having a separated structure for enabling easy repairing in case abnormal characteristics are generated by static...
7372679 Method and apparatus for RC triggered electrostatic discharge power clamp with hysteresis  
An Electrostatic Discharge (ESD) protection device extends the protection range of an ESD clamp circuit through hysteresis of the associated ESD clamp control circuit. Once the ESD clamp circuit is...
7369384 Regulator and electronic apparatus therewith  
To reduce the electric power wasted in an overvoltage protection circuit, a regulator IC 100 incorporates an overvoltage protection circuit 105 that stops the output operation of the regulator...
7369379 Methods, circuits, and applications using a resistor and a Schottky diode  
A combination of a current limiting resistor and a clamping Schottky diode prevent substantial forward biasing of a pn junction associated with a pad in a snapback device during normal operation,...
7362555 ESD protection circuit for a mixed-voltage semiconductor device  
An ESD protection circuit is implemented for a semiconductor device having a first circuit system operating with a first power supply voltage and a first complementary power supply voltage, and a...
7362554 Electrostatic discharge (ESD) clamp using output driver  
Electrostatic discharge (ESD) clamp using output driver. An electrostatic discharge (ESD) protection device for an output driver having a p-channel transistor and n-transistor pair connected...
7359170 RF circuit electrostatic discharge protection  
A padring formed on a semi conductive substrate die provides Electro Static Discharge (ESD) protection for a Radio Frequency (RF) circuit also formed on the semi conductive substrate die. The...
7359169 Circuit for protecting integrated circuits against electrostatic discharges  
A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in...
7352548 Composite integrated semiconductor device  
A composite integrated semiconductor device. In one embodiment, an input surge/noise absorbing circuit absorbs surge from an input signal, an attenuating/level-shifting circuit attenuates or...
7352547 Semiconductor integrated circuit device  
A semiconductor integrated circuit device of the invention includes: a first power supply system including a first circuit connected with a first power supply line; a second power supply system...
7352031 Electrostatic-breakdown-preventive and protective circuit for semiconductor-device  
A compact electrostatic-breakdown-preventive and protective circuit for a semiconductor-device capable of performing high-speed operations includes first and second protective transistors. The...
7349189 Electrical surge protection using in-package gas discharge system  
The present invention comprises using an electrode ( 107 ) arranged with a small gap or opening ( 108 ) placed in parallel with an electrically sensitive component ( 105 ) and housed with a gas...
7345861 Capacitor circuit with surge protection  
A capacitor circuit with surge protection that is selectively connected between a voltage source and a device includes a first capacitance element has one end that communicates with a first...
7345555 Writing pattern structure of differential transmission paths  
A wiring pattern structure having differential transmission paths electrically connects an integrated circuit element and a connector, which are arranged on a printed wiring board. Each of the...
7342765 Current insulation device for fuel systems  
An electrical insulating device for a linear component forming part of a fuel system subjected to risks of possible external electrical discharges formed by a part ( 13 ) made of insulating...
7342760 Circuit arrangement for protection against electrostatic discharge and voltage regulating device having a circuit arrangement  
A circuit arrangement for protection against electrostatic discharge for a field-effect transistor is disclosed. The arrangement includes a first and a second controllable path each having a...
7342433 Apparatus and method for enhanced transient blocking  
An apparatus and method for enhanced transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion...
7342281 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...
7339772 Hot-swap protection circuit  
Embodiments of the present invention provide methods and circuitry for protecting a circuit during hot-swap events. Hot swap protection circuitry includes as overcurrent detection circuit which...
7339771 Electrostatic protection circuit  
An electrostatic protection circuit to prevent damage to a protected circuit due to electrostatic discharge applied to an input/output terminal, comprises one or more diodes connected in series and...
7339770 Electrostatic discharge protection circuit having a ring oscillator timer circuit  
An electrostatic discharge protection circuit is provided having a first electrically conductive element (such as a current sinking transistor) to couple between a power source and a first node....
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