US 11,927,436 B2 · Measurement machine and method for detecting a defect in solder joints

Abstract

Example implementations relate to an inspection method for training a measurement machine to accurately measure side joint lengths and detecting a defect among a plurality of solder joints. The method includes receiving a first data representing the side joint lengths of the plurality of solder joints measured by a first measurement machine and a second data representing the side joint lengths measured by a second measurement machine. Further, the method includes determining a correlation value based on a statistical analysis of a relationship between the first data and the second data. The method further includes updating an algorithm used by the first measurement machine to measure the side joint lengths, based on the correlation value to reduce deviation between the first data and the second data. Later, the updated algorithm is used as a dimensional metrology in the first measurement machine for detecting the defect in the solder joints.

Claims20

Dependent claims

A method comprising:

i) receiving, by a processing resource of a computing device, a first data representing side joint lengths of a plurality of solder joints measured by a first measurement machine, wherein the plurality of solder joints is formed between a solder lead in an electronic component and an electronic board;
ii) receiving, by the processing resource, a second data representing the side joint lengths of the plurality of solder joints measured by a second measurement machine;
iii) determining, by the processing resource, a correlation value based on a statistical analysis of a relationship between the first and second data;
and
iv) updating, by the processing resource, an algorithm used by the first measurement machine to measure the side joint lengths, based on the correlation value to reduce deviation between the first and second data, wherein the algorithm is used as a dimensional metrology in the first measurement machine to detect a defect among the plurality of solder joints.

2 more elements

Dependencies are inferred from the claim text.

Measurement machine and method for detecting a defect in solder joints

Life of this patent

Measurement machine and method for detecting a defect in solder joints

Life of this patent

Abstract

Claims20