Patent ID: 9513330
Filing Date: 2016-12-06
CPC Classification: G01R,H01L

Claim Text:
1. A method, comprising: setting a voltage level of a first through-body-via to a first voltage level; setting a voltage level of a second through-body-via to a second voltage level lower than the first voltage level; allowing charges on the first and second through-body-vias to redistribute between them to provide a common, third voltage level on the first and second through-body-vias, said third voltage level being between the first and second voltage levels and a function of the respective capacitances of the first and second through-body-vias; and determining whether the one or both of the first and second through-body-vias has a defect as a function of the common, third voltage level wherein the determining includes comparing the common, third voltage level to a first threshold level lower than the first voltage level, and comparing the common, third voltage level to a second threshold level higher than the second voltage level, wherein said second threshold level is higher than said first threshold level.