公开(公告)号：US20210066214A1

公开(公告)日：2021-03-04

申请号：US16552551

申请日：2019-08-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Abhijit Kumar DAS ,  Suman BELLARY ,  Clive BITTLESTONE

IPC: H01L23/00 ,  H01L23/522 ,  G06F21/72

Abstract: An integrated circuit device is provided. In some examples, an integrated circuit die of the device includes a first capacitor arranged such that when the integrated circuit die is coupled to a package, the package affects a capacitance of the first capacitor, a second capacitor disposed directly underneath the first capacitor, and a capacitance measurement circuit coupled to the first capacitor and the second capacitor to determine the capacitance of the first capacitor and a capacitance of the second capacitor. The integrated circuit device may detect tampering with the die and/or the package based on the capacitances of the first capacitor and the second capacitor.