Invention Grant
- Patent Title: Inspection and identification to enable secure chip processing
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Application No.: US16240181Application Date: 2019-01-04
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Publication No.: US11430748B2Publication Date: 2022-08-30
- Inventor: Effendi Leobandung , Wilfried Haensch
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Tutunjian & Bitetto, P.C.
- Agent L. Jeffrey Kelly
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L21/67 ; G06F21/88 ; H01L23/544

Abstract:
A computer-implemented method executed on a processor for detecting whether a wafer has been tampered during a semiconductor fabrication process, the method including, at a plurality of patterning steps where lithographic patterns are defined and etched or at a plurality of fabrication processing steps, marking, via an identification tool, each die with an unclonable identification in a memory array, inspecting, via an inspection tool, each of the dies, and removing compromised wafers from a wafer pool during the semiconductor fabrication process.
Public/Granted literature
- US20200219827A1 INSPECTION AND IDENTIFICATION TO ENABLE SECURE CHIP PROCESSING Public/Granted day:2020-07-09
Information query
IPC分类: