A method for reducing influence of a remote reference power noise on signal quality is provided. A remote reference power plane connected to a power module is identified according to a schematic diagram of signal design, and a noised power plane is determined. A position of the noised power plane is found in a PCB, and whether the noised power plane is remote referenced by a high-speed signal is judged. Placement positions and number of connection capacitors are determined according to a layout and routing position of the high-speed signal and a width of the noised power plane. Two capacitors with fixed capacitance values are placed at the placement positions of the connection capacitors. Connection capacitors are added to a position of a noised remote reference power plane of a signal line for connecting the power plane and the ground.

Populating printed circuit boards with components on a pick-and-place variant set-up is provided. Each set-up includes a number of components, stocks of which are brought to setting-up tables on the pick-and-place line, and a set-up family is associated with each set-up, the family system, a fixed set-up and multiple printed circuit board types which can be populated using the set-up. The fixed set-up is optimized with respect to a weighted parameter, before determining, by means of a simulation, how well variant set-ups, with which the remaining components of predefined pick-and-place orders are associated, can be implemented on the setting-up tables and brought to the pick-and-place line. The quality of each different weighting is determined in order to determine an optimized weighting.

Populating printed circuit boards with components on a pick-and-place variant set-up is provided. Each set-up includes a number of components, stocks of which are brought to setting-up tables on the pick-and-place line, and a set-up family is associated with each set-up, the family system, a fixed set-up and multiple printed circuit board types which can be populated using the set-up. The fixed set-up is optimized with respect to a weighted parameter, before determining, by means of a simulation, how well variant set-ups, with which the remaining components of predefined pick-and-place orders are associated, can be implemented on the setting-up tables and brought to the pick-and-place line. The quality of each different weighting is determined in order to determine an optimized weighting.

In a component mounting system, recovery processing is repeated until a recovery count number Nr is larger than or equal to a defined count number Nth in a case where a pickup defect of a component occurs, an elapsed time is measured from error stoppage of a component mounting machine to canceling of the error stoppage in which the component mounting machine is error-stopped when the recovery count number Nr is larger than or equal to the defined count number Nth, the defined count number Nth is increased within a range in which the defined count number does not exceed the upper limit value Nmax in a case where the elapsed time is shorter than a defined time Tth, and the defined count number Nth returns to an initial value in a case where the elapsed time is longer than or equal to the defined time Tth.

In a component mounting system, recovery processing is repeated until a recovery count number Nr is larger than or equal to a defined count number Nth in a case where a pickup defect of a component occurs, an elapsed time is measured from error stoppage of a component mounting machine to canceling of the error stoppage in which the component mounting machine is error-stopped when the recovery count number Nr is larger than or equal to the defined count number Nth, the defined count number Nth is increased within a range in which the defined count number does not exceed the upper limit value Nmax in a case where the elapsed time is shorter than a defined time Tth, and the defined count number Nth returns to an initial value in a case where the elapsed time is longer than or equal to the defined time Tth.

A production management system is configured so as to make it possible to produce component mounting boards to the same specifications in two lanes of a component mounting machine using one set of NC data by arranging feeders of two feeder set bases in the same manner and setting the mounting order of the components to the circuit boards in the two lanes to be the same in a same-direction production mode in which circuit boards are conveyed in the same front/back direction in the two lanes. In addition, the arrangement of the feeders and the mounting order of the components are optimized so that the difference in production times in the two lanes in the same-direction production mode is minimized.

The present application discloses a device for judging whether splicing of carrier tapes, which house multiple electronic components at a specified interval, wound around different reels is allowed. The device is provided with a data management section and a judging section. In the device, the data management section creates an association between and memorizes the reel ID, the type of electronic components housed in the carrier tape wound around the reel, the remaining quantity of electronic components housed in the carrier tape wound around the reel, and the possible winding quantity of electronic components to the reel. Also, in the device, the judging section, in a case in which the total of the remaining quantities of electronic components of two reels exceeds the possible winding quantity of the reel to be wound onto, judges that splicing of the carrier tapes is not allowed.

The present application discloses a device for judging whether splicing of carrier tapes, which house multiple electronic components at a specified interval, wound around different reels is allowed. The device is provided with a data management section and a judging section. In the device, the data management section creates an association between and memorizes the reel ID, the type of electronic components housed in the carrier tape wound around the reel, the remaining quantity of electronic components housed in the carrier tape wound around the reel, and the possible winding quantity of electronic components to the reel. Also, in the device, the judging section, in a case in which the total of the remaining quantities of electronic components of two reels exceeds the possible winding quantity of the reel to be wound onto, judges that splicing of the carrier tapes is not allowed.

An Ethernet power supply receives a DC voltage through a bus positive terminal and a bus negative terminal, and is coupled to a load device. The Ethernet power supply includes a first control module and a second control module. The first control module provides a first control signal through the bus negative terminal to confirm whether the load device is a valid load. The second control module is used to connect or disconnect a coupling relationship between the bus positive terminal and the first control module according to whether the load device is connected to the Ethernet power supply.

In the automatic assembling system, a part mounting cell includes a solder mounting unit that solders an electronic part to a printed circuit board, and a printed-circuit-board information acquisition unit that acquires printed circuit board information including at least one of position information on an alignment mark disposed at a specific position on the printed circuit board, mounting position information on the electronic part on the printed circuit board, and warpage information on the printed circuit board. The manufacturing management device includes a compensation data generation unit that generates, based on the printed circuit board information, compensation data for compensating for a program to be executed in a downstream process cell. The downstream process cell includes a downstream process execution unit that executes a downstream process based on the compensation data generated by the compensation data generation unit.