Printed circuit board inspecting apparatus, method for determining fault type of screen printer and computer readable recording medium

A non-transitory computer-readable recording medium having a program to be executed by a computer, wherein the program includes executable instructions that instruct a processor, when the program is executed by the processor, to perform:

• generating at least one image indicating whether an anomaly associated with a plurality of solder pastes printed on a first printed circuit board is detected, if an anomaly in at least one solder paste of the plurality of solder pastes is detected by using an image of the first printed circuit board;
• obtaining at least one value indicating relevance between at least one fault type and the at least one image using a machine-learning based model that derives at least one value indicating relevance between at least one fault type of a screen printer and an image indicating whether an anomaly in the plurality of solder pastes printed on a printed circuit board is detected;
• and
• determining a fault type associated with the at least one solder paste in which the anomaly is detected from the at least one fault type, based on the obtained at least one value.

A method for determining a fault type of a screen printer by a printed circuit board inspection apparatus, the method comprising:

• generating at least one images indicating whether an anomaly associated with a plurality of solder pastes printed on a first printed circuit board is detected, if an anomaly in at least one solder paste of the plurality of solder pastes is detected by using an image of the first printed circuit board;
• obtaining at least one value indicating relevance between at least one fault type and the generated at least one image, using a machine-learning based model that derives at least one value indicating relevance between at least one fault type of the screen printer and an image indicating whether an anomaly associated with the plurality of solder pastes printed on a printed circuit board is detected;
• and
• determining a fault type associated with the at least one solder paste in which the anomaly is detected from the at least one fault type, based on the obtained at least one value.