公开(公告)号：US20250006650A1

公开(公告)日：2025-01-02

申请号：US18341893

申请日：2023-06-27

Applicant: GlobalFoundries U.S. Inc.

Inventor： Alain F. Loiseau ,  Romain H.A. Feuillette ,  Mujahid Muhammad ,  Peter T. Coutu

IPC: H01L23/544 ,  G01R31/28

Abstract: An integrated circuit (IC) includes a plurality of metal layers, and a machine-readable code in a selected metal layer of the plurality of metal layers. A wafer includes a plurality of the ICs. An IC wafer testing system includes a scanner configured to read the machine-readable code in the metal layer of the IC in the wafer, and a tester configured to perform testing on the IC in the wafer based on testing information obtained from storage based on the machine-readable code. A method may include forming the IC including a plurality of metal layers and forming a selected metal layer of the IC including the machine-readable code in metal in the selected metal layer. The method may further include testing the IC. The machine-readable code reduces the complexity and time needed to setup and test an IC in a wafer.

公开(公告)号：US20250086657A1

公开(公告)日：2025-03-13

申请号：US18463668

申请日：2023-09-08

Applicant: GlobalFoundries U.S. Inc.

Inventor： Peter T. Coutu ,  Romain H.A. Feuillette ,  Alain F. Loiseau

IPC: G06Q30/018 ,  G06K7/14

Abstract: A system and computerized method verify product custody along a product manufacturing chain. The method may include verifying a first machine-readable (MR) code for a product level N is valid by comparing the first MR code to a database of valid MR codes. Where the first MR code for the product level N is verified as valid, a second, valid MR code is generated for a next product level N+1 in the database of valid MR codes. In addition, the first MR code for the product level N in the database of valid MR codes is invalidated, so it cannot be used again. The second MR code is formed for use with the next product level N+1, e.g., by the downstream product manufacturer. Custody of product levels along a manufacturing chain can be verified and secured, avoiding bad actors from inserting and profiting from fake parts into the manufacturing chain.