JP5793120B2 - 集積されたダイオードを有するsoi基板を備える複合半導体装置 - Google Patents
集積されたダイオードを有するsoi基板を備える複合半導体装置 Download PDFInfo
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
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Description
本明細書で使用される、語句「III−V族」は少なくとも一つのIII族元素と少なくとも一つのV族元素を含む化合物半導体を言う。更に、語句「III族窒化物」又は「III族N」は窒素とアルミニウム(Al)、ガリウム(Ga)、インジウム(In)及びボロン(B)などの少なくとも一つのIII族元素を含む化合物半導体を言い、これらに限定されないが、例えば窒化アルミニウムガリウム(AlxGa(1-x)N、窒化インジウムガリウムInyGa(1-y)N、窒化アルミニウムインジウムガリウムAlxInyGa(1-x-y)N、砒化リン化窒化ガリウム(GaAsaPbN(1-a-b))、及び砒化リン化窒化アルミニウムインジウムガリウム(AlxInyGa(1-x-y)AsaPbN(1-a-b))などの合金を含む。また、III族窒化物は一般に、これらに限定されないが、Gaポーラ、Nポーラ、セミポーラ又はノンポーラ結晶方位を含む任意の極性に関連する。また、III族窒化物材料はウルツ鉱、閃亜鉛鉱又は混晶ポリタイプも含み、単結晶、単結晶構造、多結晶構造又は非晶質構造を含み得る。
高電力スイッチング用には、多くの場合、それらの有利な性能のためにIII−V族トランジスタ、例えばIII族窒化物電界効果トランジスタ(III族窒化物FET)及びIII族窒化物高移動度電子トランジスタ(III族窒化物HEMT)が使用される。例えば、III族窒化物FET及びIII族窒化物HEMTは低いオン抵抗及び高い動作電圧を維持する能力のために高く評価されている。
されており、それらの開示内容は参照することにより本出願にすべて組み込まれる。
Claims (20)
- アノード及びカソードを有するダイオードを含むSOI(silicon on insulator)基板、
前記ダイオードの上に形成された遷移体、及び
前記遷移体の上に形成された、ソース及びドレインを含むトランジスタ、
を備え、
前記ダイオードは、
第1の導電型を有するアノード層と、
前記アノード層に隣接する前記第1の導電型の高濃度ドープ層と、
前記第1の導電型と反対の第2の導電型を有するカソード層と、
前記カソード層に隣接する前記第2の導電型の高濃度ドープ層と、
を含み、
前記第1の導電型の高濃度ドープ層と前記第2の導電型の高濃度ドープ層とのうちの一つの層が、前記SOI基板の絶縁層と、前記アノード層及び前記カソード層との間に配置されており、
前記第1の導電型の高濃度ドープ層と前記第2の導電型の高濃度ドープ層とのうちの前記一つの層が、前記絶縁層内に延在せず、かつ、前記絶縁層を貫通せず、
前記ソースが第1の電気的接続部によって前記ダイオードに接続され、
前記ドレインが第2の電気的接続部によって前記ダイオードに接続されている、
複合半導体装置。 - 前記遷移体は組成的に傾斜している、請求項1記載の複合半導体装置。
- 前記トランジスタはIII−V族高電子移動度トランジスタ(HEMT)である、請求項1記載の複合半導体装置。
- 前記ダイオードはPN接合ダイオードである、請求項1記載の複合半導体装置。
- 前記ダイオードはPINダイオードである、請求項1記載の複合半導体装置。
- 前記ダイオードはIV族ダイオードである、請求項1記載の複合半導体装置。
- 前記第1の電気的接続部が前記ダイオードの前記アノードを前記トランジスタの前記ソースに接続し、前記第2の電気的接続部が前記ダイオードの前記カソードを前記トランジスタのドレインに接続する、請求項1記載の複合半導体装置。
- 前記トランジスタの降伏電圧は前記ダイオードの降伏電圧より大きい、請求項1記載の複合半導体装置。
- 前記第1及び第2の電気的接続部はそれぞれ第1及び第2の半導体貫通ビアを用いて実現されている、請求項1記載の複合半導体装置。
- 前記SOI基板は、前記複合半導体装置の背面接点で終端される前記カソード及び前記アノードの少なくとも一つのための電極を有する、請求項1記載の複合半導体装置。
- 前記ダイオードは一側で半導体貫通ビアによって、他側で外部電気接続部によって前記トランジスタの両端間に接続されている、請求項1記載の複合半導体装置。
- 前記ダイオードは前記SOI基板の絶縁層の上に形成されている、請求項1記載の複合半導体装置。
- 前記ダイオードは前記SOI基板の絶縁層の下に形成されている、請求項1記載の複合半導体装置。
- アノード及びカソードを有するIV族ダイオードを含むSOI(silicon on insulator)基板、
前記IV族ダイオードの上に形成された、複数のIII−V族半導体層を含むIII−V族遷移体、及び
前記III−V族遷移体の上に形成された、ソース及びドレインを含むIII−V族トランジスタ、
を備え、
前記IV族ダイオードは、
第1の導電型を有するアノード層と、
前記アノード層に隣接する前記第1の導電型の高濃度ドープ層と、
前記第1の導電型と反対の第2の導電型を有するカソード層と、
前記カソード層に隣接する前記第2の導電型の高濃度ドープ層と、
を含み、
前記第1の導電型の高濃度ドープ層と前記第2の導電型の高濃度ドープ層とのうちの一つの層が、前記SOI基板の絶縁層と、前記アノード層及び前記カソード層との間に配置されており、
前記第1の導電型の高濃度ドープ層と前記第2の導電型の高濃度ドープ層とのうちの前記一つの層が、前記絶縁層内に延在せず、かつ、前記絶縁層を貫通せず、
前記ソースが第1の電気的接続部によって前記IV族ダイオードに接続され、
前記ドレインが第2の電気的接続部によって前記IV族ダイオードに接続されている、
複合半導体装置。 - 前記III−V族遷移体は組成的に傾斜している、請求項14記載の複合半導体装置。
- 前記III−V族トランジスタはIII−V族高電子移動度トランジスタ(HEMT)である、請求項14記載の複合半導体装置。
- 前記IV族ダイオードはPN接合ダイオードである、請求項14記載の複合半導体装置。
- 前記IV族ダイオードはPINダイオードである、請求項14記載の複合半導体装置。
- 前記第1の電気的接続部が前記IV族ダイオードの前記アノードを前記III−V族トランジスタの前記ソースに接続し、前記第2の電気的接続部が前記IV族ダイオードの前記カソードを前記III−V族トランジスタのドレインに接続する、請求項14記載の複合半導体装置。
- 前記III−V族トランジスタの降伏電圧は前記IV族ダイオードの降伏電圧より大きい、請求項14記載の複合半導体装置。
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US13/544,829 US9281388B2 (en) | 2011-07-15 | 2012-07-09 | Composite semiconductor device with a SOI substrate having an integrated diode |
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