Abstract: An electrostatic discharge (ESD) protection structure including a P-type substrate, a P-type structure, an N-type buried layer, an element active region, a P-type guard ring, and an N-type structure is provided. The P-type structure is formed in the P-type substrate and serves as an electrical contact of the P-type substrate. The N-type buried layer is formed in the P-type substrate. The element active region is formed on the N-type buried layer. The P-type guard ring is formed on the N-type buried layer and surrounds the element active region. The N-type structure is formed on the N-type buried layer and disposed between the P-type guard ring and the P-type structure.

Abstract: A power detection circuit is provided. The protection circuit is coupled to a pad and includes a trigger circuit and a discharge circuit. The trigger circuit includes a first transistor of a first conductivity type and a second transistor, also of the first conductivity type, which are coupled in series between the pad and a ground terminal. The trigger circuit detects whether a transient even occurs on the pad. The discharge circuit is coupled between the bonding pad and the ground terminal and controlled by the trigger circuit. In response to the transient event occurring on the bonding pad, the trigger circuit generates a trigger voltage to trigger the discharge circuit to provide a discharge path between the pad and the ground terminal.

Abstract: A semiconductor layout including a semiconductor layer and a dummy layer is provided. The semiconductor layer includes a layout pattern. The dummy layer includes a dummy pattern. A check circuit calculates the layout pattern and the dummy pattern to generate a calculated value. The check circuit compares the calculated value to the predetermined value to determine whether the layout pattern has been modified.

Abstract: A power detection circuit is provided. The protection circuit is coupled to a pad and includes a trigger circuit and a discharge circuit. The trigger circuit includes a first transistor of a first conductivity type and a second transistor, also of the first conductivity type, which are coupled in series between the pad and a ground terminal. The trigger circuit detects whether a transient even occurs on the pad. The discharge circuit is coupled between the bonding pad and the ground terminal and controlled by the trigger circuit. In response to the transient event occurring on the bonding pad, the trigger circuit generates a trigger voltage to trigger the discharge circuit to provide a discharge path between the pad and the ground terminal.

Abstract: An electrostatic discharge (ESD) protection circuit including a detection circuit, a voltage-divider element, and a discharge element is provided. The detection circuit is coupled between a first power line and a second power line. In response to an ESD event, the detection circuit enables a turn-on signal. The voltage-divider element is coupled between the first power line and a third power line and receives the turn-on signal. The discharge element is coupled between the second and third power lines. In response to the turn-on signal being enabled, the first discharge element discharges an ESD current.

Abstract: An electrostatic discharge (ESD) protection structure including a P-type substrate, a P-type structure, an N-type buried layer, an element active region, a P-type guard ring, and an N-type structure is provided. The P-type structure is formed in the P-type substrate and serves as an electrical contact of the P-type substrate. The N-type buried layer is formed in the P-type substrate. The element active region is formed on the N-type buried layer. The P-type guard ring is formed on the N-type buried layer and surrounds the element active region. The N-type structure is formed on the N-type buried layer and disposed between the P-type guard ring and the P-type structure.

Abstract: An electrostatic discharge (ESD) protection circuit including a detection circuit, a voltage-divider element, and a discharge element is provided. The detection circuit is coupled between a first power line and a second power line. In response to an ESD event, the detection circuit enables a turn-on signal. The voltage-divider element is coupled between the first power line and a third power line and receives the turn-on signal. The discharge element is coupled between the second and third power lines. In response to the turn-on signal being enabled, the first discharge element discharges an ESD current.

Abstract: An electrostatic discharge protection (ESD) circuit is provided for a semiconductor element. The semiconductor element includes first and second drain/source electrodes and is surrounded by a deep well region. The ESD circuit includes a first control circuit and a first discharge circuit. The first control circuit is electrically connected between the first drain/source electrode and a power terminal and includes a first control terminal electrically connected to the deep well region and generates a first control signal. The first discharge circuit is controlled by the first control signal. When an electrostatic discharge event occurs on the first drain/source electrode, the first control circuit generates the first control signal according to potential states of the deep well region and the first drain/source electrode, and the first discharge circuit provides a first discharge path between the first drain/source electrode and the power terminal according to the first control signal.

Abstract: A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.

Abstract: A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.

Abstract: A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.

Abstract: A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.

Abstract: A method of accessing data from distributed field equipments by a host through a set of intelligent network gateways is disclosed. The intelligent network gateways link the host on a local area network to the field equipments that are connected to a control network. Initially, configuration software residing in the host is employed to install the intelligent network gateways and the field equipments as a set of virtual equipment data servers, which are capable of continuously accessing, updating, and storing data from the field equipments. The virtual equipment data servers always possess the field equipments' most recent data and are able to communicate to any application program with a standard communication protocol. The method and apparatus facilitate the integration of a variety of field equipments with high-speed data links in a factory environment.

Abstract: A method of accessing data from field equipments by the host through intelligent network gateways which link field equipments over control network and the host over local area network is disclosed. A configuration software in the host is used to install intelligent network gateways and field equipments as virtual equipment data servers. After finishing installation, the virtual equipment data servers accessupdate store data of the field equipments continuously. Now, the virtual equipment data servers always possess the last field equipment data and can link any application program with a standard communication protocol. The application can integrate easily and high speed access data of a various of field equipments in the factory with only one standard communication protocol through distributed virtual equipment data servers.