DEVICE AND METHOD FOR DECIDING TRANSFER STATE OF PASTE

摘要

PROBLEM TO BE SOLVED: To provide a device and a method for deciding the nondefective or defective of the transfer state of a flux in an electrode for an electronic part. SOLUTION: A brightness distribution is detected in a bump 11a with a transferred flux with a blended pigment changing the brightness of the bump 11a. The nondefective or defective of the transfer state of the flux is decided on the basis of a ratio of a region 11c displaying the brightness exceeding a threshold value TH to the region 11d displaying the brightness exceeding no threshold value TH. Accordingly, the nondefective or defective of the transfer state of the flux can be decided, and the trouble can be prevented in the joining of the electrode resulting from the defective transfer of the flux. COPYRIGHT: (C)2008,JPO&INPIT