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Kikuta et al., 2020 - Google Patents

Highly reliable AlSiO gate oxides formed through post-deposition annealing for GaN-based MOS devices

Kikuta et al., 2020

Document ID
14279591405121165624
Author
Kikuta D
Ito K
Narita T
Kachi T
Publication year
Publication venue
Applied Physics Express

External Links

Snippet

The electrical stabilities of AlSiO gate oxides formed through post-deposition annealing (PDA) and intended for GaN-based power devices were assessed. No degradation of the interface properties of AlSiO/n-type GaN or the oxide breakdown voltage was observed …
Continue reading at iopscience.iop.org (other versions)

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    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; Multistep manufacturing processes therefor
    • H01L29/40—Electrodes; Multistep manufacturing processes therefor
    • H01L29/43—Electrodes; Multistep manufacturing processes therefor characterised by the materials of which they are formed
    • H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
    • H01L29/51—Insulating materials associated therewith
    • H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
    • H01L29/513—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures the variation being perpendicular to the channel plane
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    • H01L29/66—Types of semiconductor device; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
    • H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
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    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer
    • H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in H01L21/20 - H01L21/268
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    • H01L29/66—Types of semiconductor device; Multistep manufacturing processes therefor
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    • H01L29/02—Semiconductor bodies; Multistep manufacturing processes therefor
    • H01L29/12—Semiconductor bodies; Multistep manufacturing processes therefor characterised by the materials of which they are formed
    • H01L29/20—Semiconductor bodies; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
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    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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    • H01L21/02107—Forming insulating materials on a substrate
    • H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
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    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
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    • H01L29/66—Types of semiconductor device; Multistep manufacturing processes therefor
    • H01L29/66007—Multistep manufacturing processes

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