Detector for detecting position of ic device and method for the same

An apparatus for detecting an attitude of electronic components, the electronic components including a first electronic component and a second electronic component each configured such that a plurality of terminals are regularly arranged in an X-Y plane, the apparatus comprising:

• an imaging device fixed to a site at which the imaging device can image a whole of the plurality of terminals of the first electronic component but can image only a part of the plurality of terminals of the second electronic component, the part including a corner part of the plurality of terminals of the second electronic component;
• a storage configured to store at least a first model image of a part or whole of the plurality of terminals of the first electronic component and a second model image of the part, including the corner part, of the plurality of terminals of the second electronic component;
• a first image processor configured to extract a binarized image of the plurality of terminals of the second electronic component from an image acquired by the imaging device;
• a second image processor configured to perform image matching between each terminal in the binarized image of the second electronic component and each terminal in the second model image and extract attitude candidates of image matching;
• a third image processor configured to extract a coordinate of an endmost part of the plurality of terminals in the X-axis direction and a coordinate of an endmost part of the plurality of terminals in the Y-axis direction from the binarized image of the second electronic component and obtain coordinates of the corner part of the plurality of terminals in the binarized image from the coordinate of the endmost part in the X-axis direction and the coordinate of the endmost part in the Y-axis direction;
• and
• a fourth image processor configured to select an attitude candidate from among the attitude candidates and output the attitude candidate as a detected attitude of the second electronic component, the attitude candidate being selected such that the coordinates of the corner part in the second model image in the attitude candidate are closest on the X-Y plane to the coordinates of the corner part of the plurality of terminals in the binarized image.