Inspection device and inspection method for detecting formation of a solder bridge over adjacent electrodes
AssigneeFuji Corporation
InventorsMikiya Suzuki, Yuta Yokoi
Life of this patent
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Abstract
The present disclosure provides an inspection device for use in a mounting system including a mounting device for disposing a component on a board, including a control section configured to extract a mass area included in a captured image resulting from imaging a processing target object where a viscous fluid is formed at a predetermined part, obtain a center of gravity of the mass area so extracted, and determine whether the center of gravity is included in a normal range of the predetermined part as a reference of the captured image to thereby determine whether a bridge has occurred where the viscous fluid is formed over adjacent predetermined parts.
Claims3
An inspection device for use in a mounting system including a mounting device for disposing a processing target object on a board, comprising:
- a processor;
- and
- a memory storing instructions executable by the processor,
- wherein the processor is configured to:
- capture an image by imaging the processing target object;
- extract a mass area included in the captured image of the processing target object where a viscous fluid is formed at a predetermined part;
- obtain a location of a center of gravity of the mass area;
- determine whether the location of the center of gravity is within boundaries of an area of the predetermined part relative to a reference image of the predetermined part with the viscous fluid present;
- detect a brightness difference between a plurality of detection lines crossing between an inside area of the predetermined part and an outside area of the predetermined part;
- detect a state of disposition of the processing target object based on detection lines of the plurality of detection lines that satisfy a predetermined tolerance ratio;
- determine, based on the location of the center of gravity and the state of disposition of the processing target object, whether a bridge has occurred, wherein the bridge is a formation of the viscous fluid over adjacent predetermined parts;
- and
- execute a discard process of discarding the processing target object in response to determining that the bridge has occurred.
An inspection method for use in a mounting system including a mounting device for disposing a processing target object on a board, comprising:
- capturing an image by imaging the processing target object;
- extracting a mass area included in the captured image of the processing target object where a viscous fluid is formed at a predetermined part;
- obtaining a location of a center of gravity of the mass area;
- determining whether the location of the center of gravity is within boundaries of an area of the predetermined part relative to a reference image of the predetermined part with the viscous fluid present;
- detecting a brightness difference between a plurality of detection lines crossing between an inside area of the predetermined part and an outside area of the predetermined part;
- detecting a state of disposition of the processing target object based on detection lines of the plurality of detection lines that satisfy a predetermined tolerance ratio;
- determining, based on the location of the center of gravity and the state of disposition of the processing target object, whether a bridge has occurred, wherein the bridge is a formation of the viscous fluid over adjacent predetermined parts;
- and
- executing a discard process of discarding the processing target object in response to determining that the bridge has occurred.
Dependencies are inferred from the claim text.