Abstract:
In an image recognition method, the image of a cream solder 9 printed on a rectangular electrode 16 having a solder leveler formed is picked up and recognized to identify the cream solder 9. An illuminating unit having white light source parts 35W arranged in the radial oblique directions of 45 ° is used to apply white color illumination lights from a light applying direction in which an angle of θ 1 formed by the light applying direction and a horizontal plane in a vertical plane is 45 ° or smaller and from a light applying direction in which an angle of θ 3 formed by the light applying direction and the boundary of the electrode 16 in a horizontal plane is 75 ° or smaller. Thus, regularly reflected lights from a solder leveler forming surface 16a with a glossiness are not received by an upper camera to identify a solder surface 9a and the solder leveler forming surface 16a with good accuracy.
Abstract:
In an electronic components mounting process fabricating a mount circuit board due to an electronic components mounting system formed of a plurality of electronic components mounting apparatuses by connecting them to each other, data of solder paste position which is printed on the circuit board is transmitted as feedforward data to an electronic components placement apparatus and a placement state inspecting apparatus. A control parameter which controls a placing position in a components placement operation due to the electronic components placement apparatus and an inspection parameter which indicates a standard position of the components in a placement state inspection are updated on the basis of the soldering position data. Therefore, it is possible to achieve a precise mounting by effectively and properly using inspection information obtained from each process.
Abstract:
To provide an electronic component mounting system and an electronic component mounting method which can prevent a mounting failure due to positional error in a height direction of a substrate and ensure mounting quality. The electronic component mounting system includes a plurality of electronic component mounting devices connected to one another and mounts an electronic component on a substrate to manufacture a mounting substrate. A print test device for testing the substrate after solder printing measures a height position of a height measurement point set on the upper surface of the substrate 4 by a height measuring machine 22 and outputs a measurement result as substrate height data. In a component placing step using an electronic component placing device, a control parameter for controlling a component placing operation of the placing head 32 is updated. Accordingly, it is possible to correct a variation of the height position of an individual substrate and to prevent a mounting failure due to positional error in the height direction of the substrate.
Abstract:
Regarding electronic component mounting in which an electronic component having plural solder bumps for external connection on its lower surface is mounted on a board, in an electronic component mounting operation of previously measuring the height position of solder paste on the board on which the solder paste has been printed, and mounting the electronic component on the board on which the solder paste has been printed by a loading head, whether the transfer of the solder paste to the solder bumps is necessary or not is judged on the basis of the measurement result of the height of the solder paste. In case that it is judged that the transfer is necessary, the transfer of the solder paste is executed, and thereafter the electronic component is mounted on the board. Hereby, it is possible to prevent the poor joint in case that a thin-sized semiconductor package which causes easily warp deformation is mounted on the board by solder-joint.
Abstract:
To provide an electronic component mounting system, an electronic component placing device, and an electronic component mounting method, which can prevent waste due to the place of an electronic component onto a unit substrate having a print failure. In the electronic component mounting method for mounting an electronic component on a multi-substrate in which a plurality of unit substrates are formed on the same substrate, the quality of a print state of a solder printed on electrodes formed on the plurality of unit substrates is determined by the test of the print state of the solder and a determination result is output to an electronic component placing device as solder test data in every unit substrate. In a component placing steps, a component placing mechanism is controlled based on the solder test data such that a component placing operation is performed only on the unit substrate in which the print state of the solder is determined to be good. Accordingly, it is possible to prevent waste due to the place of an electronic component onto a unit substrate having a print failure.
Abstract:
To provide an electronic component mounting system and an electronic component mounting method which can prevent a mounting failure due to positional error in a height direction of a substrate and ensure mounting quality. The electronic component mounting system includes a plurality of electronic component mounting devices connected to one another and mounts an electronic component on a substrate to manufacture a mounting substrate. A print test device for testing the substrate after solder printing measures a height position of a height measurement point set on the upper surface of the substrate 4 by a height measuring machine 22 and outputs a measurement result as substrate height data. In a component placing step using an electronic component placing device, a control parameter for controlling a component placing operation of the placing head 32 is updated. Accordingly, it is possible to correct a variation of the height position of an individual substrate and to prevent a mounting failure due to positional error in the height direction of the substrate.
Abstract:
One objective of the present invention is to provide an electronic component mounting system and an electronic component mounting method that can prevent a mounting defect due to a positioning error in the direction of the thickness of a substrate, and that can deliver a specific mounting quality. According to an electronic component mounting system, which is constituted by coupling a plurality of apparatuses used for mounting electronic components, the height measurement device 22 of a printing inspection apparatus measures the heights at height measurement points, designated on the upper face of a substrate, and outputs the measurement results as substrate height data. Then, once the substrate has been delivered to an electronic component placing apparatus, the substrate height measurement apparatus again measures the height of the substrate at specific height measurement points to obtain substrate height correction data, and based on the initial substrate height data and the substrate height correction data, updates a control parameter for controlling the component placing operation performed by a loading head. In this manner, discrepancies in the positions of the heights of individual substrates can be accurately corrected, and mounting defects due to positioning errors in the direction of the heights of the substrates can be prevented.
Abstract:
To provide an electronic component mounting system, an electronic component placing device, and an electronic component mounting method, which can prevent waste due to the place of an electronic component onto a unit substrate having a print failure. In the electronic component mounting method for mounting an electronic component on a multi-substrate in which a plurality of unit substrates are formed on the same substrate, the quality of a print state of a solder printed on electrodes formed on the plurality of unit substrates is determined by the test of the print state of the solder and a determination result is output to an electronic component placing device as solder test data in every unit substrate. In a component placing steps, a component placing mechanism is controlled based on the solder test data such that a component placing operation is performed only on the unit substrate in which the print state of the solder is determined to be good. Accordingly, it is possible to prevent waste due to the place of an electronic component onto a unit substrate having a print failure.
Abstract:
The present invention relates to a porous, selectively adsorptive material selected from an Al, Ti or Zr type oxide and having a mean pore diameter of not greater than 5 nm, and a porous, selectively adsorptive material comprising an Si oxide and having a mean pore diameter of 1 to 5 nm. The material of the present invention has particularly excellent selective adsorptivity of Nox in an alumina type material.