Sonoscan Application Note 1054

Delaminations on the top side

Acoustic image of a PDIP showing delaminations (red and yellow) center

This PDIP (Plastic Dual In-line Package) was imaged at 15 MHz from the top side of the package. Gating was on the interface between the molding compound and the lead frame and paddle.

Result

Red and yellow areas are delaminations of the top side molding compound from the top side both the paddle and lead fingers. Application Note #1053 below shows other aspects of the same PDIP.