Abstract

Applications of MpOBIC (Multi-photon Optical Beam Induced Current) are discussed for use in defect localization. The MpOBIC signals in a ring oscillator under static conditions are examined and demonstrate the superior optical resolution of the system over traditional OBIRCH. A 5-fin diode test structure is examined under passive conditions, demonstrating that true multi-photon OBIC has occurred from the backside. The same diode is examined in forward bias, and the resulting discussion concludes that both OBIC and OBIRCH signals are present in the sample. Thus, we claim that both OBIC and OBIRCH signals can provide device characterization information from an MpOBIC system.

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