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(Invited) Second Harmonic Generation: A Powerful Non-Destructive Characterization Technique for Dielectric-on-Semiconductor Interfaces

Abstract : The second harmonic generation (SHG) proved to be a very promising characterization technique for dielectric-semiconductor interfaces because it is sensitive, non-destructive, can be applied directly on wafer, at different stages of wafer processing. The method, based on non-linear optics effects, is measuring a signal encompassing the “static” electric field at the dielectricsemiconductor interface which is directly related to the oxide charges Qox and to the interface state density Dit. A general methodology for Qox and Dit extraction from SHG measurements requires (i) calibration based on parameters obtained by classical electrical methods and (ii) modeling to capture the optical propagation phenomena that impact the SHG signal. In this paper, we discuss these issues based on a review of our recent advances on how to exploit SHG for dielectrics on semiconductor characterization.
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Submitted on : Tuesday, June 9, 2020 - 10:00:43 AM
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Irina Ionica, Dimitrios Damianos, Anne Kaminski-Cachopo, Danièle Blanc-Pelissier, Gérard Ghibaudo, et al.. (Invited) Second Harmonic Generation: A Powerful Non-Destructive Characterization Technique for Dielectric-on-Semiconductor Interfaces. ECS Transactions, Electrochemical Society, Inc., 2020, 97 (1), pp.119-130. ⟨10.1149/09701.0119ecst⟩. ⟨hal-02861584⟩

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