Failure Mode Detection and Process Optimization for 65 nm CMOS Technology

Short loop test flows have been commonly used in back end of line (BEOL) interconnect process development to speed up learning rates and improve yields. This paper presents case studies on the expanded use of short loop test chips to the shallow trench isolation (STI), gate and pre- metal dielectric...

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Hauptverfasser: DeBord, J.R.D., Olsen, L., Jin Zhao, Bonifield, T., Lytle, S.
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Olsen, L.
Jin Zhao
Bonifield, T.
Lytle, S.
description Short loop test flows have been commonly used in back end of line (BEOL) interconnect process development to speed up learning rates and improve yields. This paper presents case studies on the expanded use of short loop test chips to the shallow trench isolation (STI), gate and pre- metal dielectric (PMD)Z contact loops of a 65 nm process technology in addition to the BEOL. These test chips have been used to quickly identify and eliminate random and systematic defect mechanisms and generate a robust process flow, thus accelerating the rate of yield learning.
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subjects Acceleration
CMOS process
CMOS technology
Contacts
Dielectric materials
Failure analysis
Isolation technology
Life estimation
Random access memory
System testing
title Failure Mode Detection and Process Optimization for 65 nm CMOS Technology
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