JP6926798B2 - 化合物半導体装置、化合物半導体装置の製造方法、電源装置、及び高周波増幅器 - Google Patents
化合物半導体装置、化合物半導体装置の製造方法、電源装置、及び高周波増幅器 Download PDFInfo
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- JP6926798B2 JP6926798B2 JP2017151728A JP2017151728A JP6926798B2 JP 6926798 B2 JP6926798 B2 JP 6926798B2 JP 2017151728 A JP2017151728 A JP 2017151728A JP 2017151728 A JP2017151728 A JP 2017151728A JP 6926798 B2 JP6926798 B2 JP 6926798B2
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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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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 groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28264—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being a III-V compound
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/36—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the concentration or distribution of impurities in the bulk material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
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- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
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Description
第1実施形態に係る化合物半導体装置について、その製造工程を追いながら説明する。
本実施形態では、以下のようにしてソース電極25やドレイン電極26のコンタクト抵抗を低減する。
第1実施形態及び第2実施形態においては、電子供給層24の上にゲート電極27が直接形成されたショットキーゲート構造を採用した。
本実施形態では、以下のようにして二次元電子ガスの密度が低下するのを防止する。
本実施形態では、第4実施形態とは異なる構造で二次元電子ガスの界面ラフネス散乱を抑制する。
本実施形態では高エネルギの電子によって破壊され難いチャネル層について説明する。
本実施形態では、第1実施形態〜第6実施形態で製造した化合物半導体装置30、40、50、60、70、80を備えたディスクリートパッケージについて説明する。
本実施形態では、第7実施形態のHEMTチップ101を用いたPFC(Power Factor Correction)回路について説明する。
本実施形態では、第7実施形態のHEMTチップ101を用いた電源装置について説明する。
本実施形態では、第7実施形態のHEMTチップ101を用いた高周波増幅器について説明する。
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、
前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されたことを特徴とする化合物半導体装置。
前記化合物半導体層の上に形成された下層と、
前記下層の上に形成された中間層と、
前記中間層の上に形成された上層とを有し、
前記下層と前記上層の各々の電子親和力が、前記中間層の電子親和力よりも小さいことを特徴とする付記1乃至付記3のいずれかに記載の化合物半導体装置。
前記下層と前記上層の各々はAlGaN層であることを特徴とする付記5に記載の化合物半導体装置。
前記基板に近づくにつれ前記井戸層のバンドギャップが広くなることを特徴とする付記1乃至付記3のいずれかに記載の化合物半導体装置。
前記化合物半導体層の上にチャネル層を形成する工程と、
前記チャネル層の上に電子供給層を形成する工程と、
前記電子供給層の上方においてソース電極、ドレイン電極、及びゲート電極の各々を互いに間隔をおいて形成する工程とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されたことを特徴とする化合物半導体装置の製造方法。
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、
前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されたことを特徴とする化合物半導体装置を備えた電源装置。
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、
前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されたことを特徴とする化合物半導体装置を備えた高周波増幅器。
Claims (9)
- 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記チャネル層における電子の基底準位と第二励起準位とのエネルギ差は、前記チャネル層の光学フォノンエネルギよりも大きいことを特徴とする化合物半導体装置。 - 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記チャネル層における電子の基底準位と第二励起準位とのエネルギ差は、前記基底準位に対応したサブバンドのL点とΓ点とのエネルギ差よりも小さいことを特徴とする化合物半導体装置。 - 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記化合物半導体層の表層にドナー型不純物がドープされたことを特徴とする化合物半導体装置。 - 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記チャネル層は、
前記化合物半導体層の上に形成された下層と、
前記下層の上に形成された中間層と、
前記中間層の上に形成された上層とを有し、
前記下層と前記上層の各々の電子親和力が、前記中間層の電子親和力よりも小さいことを特徴とする化合物半導体装置。 - 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記チャネル層は、互いに積層された複数の井戸層を有し、
前記基板に近づくにつれ前記井戸層のバンドギャップが広くなることを特徴とする化合物半導体装置。 - 基板の上に化合物半導体層を形成する工程と、
前記化合物半導体層の上にチャネル層を形成する工程と、前記チャネル層の上に電子供給層を形成する工程と、
前記電子供給層の上方においてソース電極、ドレイン電極、及びゲート電極の各々を互いに間隔をおいて形成する工程とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成され、前記チャネル層における電子の基底準位と第二励起準位とのエネルギ差は、前記チャネル層の光学フォノンエネルギよりも大きいことを特徴とする化合物半導体装置の製造方法。 - 基板と、
前記基板の上に形成された化合物半導体層と、
前記化合物半導体層の上に形成されたチャネル層と、前記チャネル層の上に形成された電子供給層と、
前記電子供給層の上方において互いに間隔をおいて形成されたソース電極、ドレイン電極、及びゲート電極とを有し、
前記化合物半導体層、前記チャネル層、及び前記電子供給層により量子井戸構造が形成されており、
前記チャネル層における電子の基底準位と第二励起準位とのエネルギ差は、前記チャネル層の光学フォノンエネルギよりも大きい化合物半導体装置を備えた電源装置。 - 請求項2〜5のいずれか1項に記載の化合物半導体装置を備えた電源装置。
- 請求項1〜5のいずれか1項に記載の化合物半導体装置を備えた高周波増幅器。
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