JP2008541275A - 光起動ワイドバンドギャップバイポーラパワースイッチングデバイスおよび回路 - Google Patents
光起動ワイドバンドギャップバイポーラパワースイッチングデバイスおよび回路 Download PDFInfo
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- 230000004044 response Effects 0.000 claims abstract description 7
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 28
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 25
- 239000000758 substrate Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract 2
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 229910017464 nitrogen compound Inorganic materials 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002830 nitrogen compounds Chemical class 0.000 description 2
- 230000002186 photoactivation Effects 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
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Abstract
Description
Claims (32)
- 電子回路であって、
制御端子を含み、かつ前記制御端子に印加される制御信号に応答して負荷電流を供給するように構成されるワイドバンドギャップバイポーラパワースイッチングデバイスと、
前記制御信号を生成し、かつ前記スイッチングデバイスの前記制御端子に前記制御信号を供給するように構成されるドライバデバイスと、を備え、
前記スイッチングデバイスあるいは前記ドライバデバイスのうち少なくとも1つが、それに当てられる光に応答して非伝導状態と伝導状態との間で切り替えをするように構成される光起動デバイスを備える、ことを特徴とする電子回路。 - 請求項1の電子回路であって、さらに、二次ドライバデバイスを備え、前記ドライバデバイスによって発生する前記制御信号が、前記二次ドライバデバイスの制御端子に供給され、そして、前記二次ドライバデバイスが前記制御信号を増幅するように構成される、ことを特徴とする電子回路。
- 請求項1の電子回路であって、前記ドライバデバイスが、ベース、コレクタおよびエミッタを含むダーリントントランジスタ対を形成するように接続される少なくとも一対のワイドバンドギャップバイポーラトランジスタを含み、そして、前記ダーリントントランジスタ対の前記エミッタが前記スイッチングデバイスの前記制御端子に接続される、ことを特徴とする電子回路。
- 請求項1の電子回路であって、前記スイッチングデバイスあるいは前記ドライバデバイスのうち少なくとも1つが、炭化珪素バイポーラ接合トランジスタを備える、ことを特徴とする電子回路。
- 請求項1の電子回路であって、前記スイッチングデバイスあるいは前記ドライバデバイスのうち少なくとも1つが、ラッチ型スイッチングデバイスを備える、ことを特徴とする電子回路。
- 請求項5の電子回路であって、前記ラッチ型スイッチングデバイスが、制御端子を有するサイリスタを備え、前記電子回路が更に、前記サイリスタの前記制御端子に接続され、かつ光信号に応答して前記サイリスタを非伝導状態に切り替えるのに十分な電流を供給するように構成される逆バイアス整流フォトダイオードを備える、ことを特徴とする電子回路。
- 電子回路であって、
アノードおよびカソードを有する光起動ワイドバンドギャップサイリスタを含むドライバデバイスと、
ベース、コレクタおよびエミッタを有する第1のワイドバンドギャップバイポーラトランジスタを含む一次デバイスと、を備え、
前記サイリスタの前記カソードが、前記第1のワイドバンドギャップバイポーラトランジスタの前記ベースに接続され、そして、
前記サイリスタの前記アノードおよび前記第1のワイドバンドギャップバイポーラトランジスタの前記コレクタが、電源電圧に接続される、ことを特徴とする電子回路。 - 請求項7の電子回路であって、さらに、
ベース、コレクタおよびエミッタを有する第2のワイドバンドギャップバイポーラトランジスタを含む二次ドライバデバイスを備え、前記サイリスタの前記カソードが前記第2のワイドバンドギャップバイポーラトランジスタを通して前記第1のワイドバンドギャップバイポーラトランジスタの前記ベースに接続されるように、かつ、前記サイリスタを通過する電流が前記第2のワイドバンドギャップバイポーラトランジスタの前記ベースに供給されるように、前記サイリスタの前記カソードが、前記第2のワイドバンドギャップバイポーラトランジスタの前記ベースに接続され、そして前記第2のワイドバンドギャップトランジスタの前記エミッタが前記第1のワイドバンドギャップトランジスタの前記ベースに接続される、ことを特徴とする電子回路。 - 請求項7の電子回路であって、前記第1のワイドバンドギャップバイポーラトランジスタの前記エミッタが、接地にあるいは負荷抵抗に接続される、ことを特徴とする電子回路。
- 請求項7の電子回路であって、前記第1のワイドバンドギャップバイポーラトランジスタがNPNトランジスタを備える、ことを特徴とする電子回路。
- 請求項8の電子回路であって、さらに、前記第2のワイドバンドギャップバイポーラトランジスタの前記エミッタに接続される中間段抵抗を備える、電子回路。
- 請求項8の電子回路であって、さらに、前記第2のワイドバンドギャップバイポーラトランジスタの前記コレクタと前記電源電圧との間に接続されるバイアス抵抗を備える、電子回路。
- 電子回路であって、
アノードおよびカソードを有する光起動ワイドバンドギャップサイリスタを含むドライバデバイスと、
ベース、コレクタおよびエミッタを有する第1のワイドバンドギャップバイポーラトランジスタを含む一次デバイスと、を備え、
前記サイリスタの前記アノードが、前記第1のワイドバンドギャップトランジスタの前記ベースに接続され、そして、前記サイリスタの前記カソードおよび前記第1のワイドバンドギャップバイポーラトランジスタの前記コレクタが、負電源電圧に接続される、ことを特徴とする電子回路。 - 請求項13の電子回路であって、前記第1のワイドバンドギャップバイポーラトランジスタの前記エミッタが、接地にあるいは負荷抵抗に接続される、ことを特徴とする電子回路。
- 請求項13の電子回路であって、さらに、
ベース、コレクタおよびエミッタを有する第2のワイドバンドギャップバイポーラトランジスタを含む二次ドライバデバイスを備え、前記サイリスタの前記アノードが前記第2のワイドバンドギャップバイポーラトランジスタを通して前記第1のワイドバンドギャップバイポーラトランジスタの前記ベースに接続されるように、かつ前記サイリスタを通過する電流が前記第2の炭化珪素バイポーラトランジスタの前記ベースから引き抜かれるように、前記サイリスタの前記アノードが、前記第2のワイドバンドギャップバイポーラトランジスタの前記ベースに接続される、ことを特徴とする電子回路。 - 請求項13の電子回路であって、前記第1のワイドバンドギャップバイポーラトランジスタが、PNPトランジスタを備える、ことを特徴とする電子回路。
- 電子回路であって、
アノード、カソードおよびゲートを有するワイドバンドギャップサイリスタを含む一次デバイスと、
ベース、コレクタおよびエミッタを有するダーリントントランジスタ対を形成するように接続される第1の一対のワイドバンドギャップバイポーラトランジスタを含むドライバデバイスと、を備え、
前記ダーリントントランジスタ対によって放出される電流が、前記サイリスタの前記伝導状態を制御するために前記サイリスタの前記ゲートに供給されるように、前記サイリスタの前記ゲートが、前記ダーリントントランジスタ対の前記エミッタに接続され、
そして、
前記ダーリントントランジスタ対を形成するバイポーラトランジスタの前記対の少なくとも1つが、光起動フォトトランジスタを備える、ことを特徴とする電子回路。 - 請求項17の電子回路であって、前記ダーリントントランジスタ対の前記トランジスタの各々がPNPトランジスタを備え、そして、前記サイリスタの前記カソードおよび前記ダーリントントランジスタの前記コレクタが負電源電圧に接続される、ことを特徴とする電子回路。
- 請求項17の電子回路であって、前記ダーリントントランジスタ対の前記トランジスタの各々がNPNトランジスタを備え、そして、前記サイリスタの前記アノードおよび前記ダーリントントランジスタの前記コレクタが正の電源電圧に接続される、ことを特徴とする電子回路。
- 個別ワイドバンドギャップ半導体デバイスであって、
制御電流の印加で伝導状態と非伝導状態との間の切り替えをするように構成される一次バイポーラデバイス段と、
前記制御電流を生成し、かつ前記一次バイポーラデバイス段に前記制御電流を供給するように構成されるバイポーラドライバ段と、を備え、
前記一次バイポーラデバイス段および前記バイポーラドライバ段のうち少なくとも1つが、光起動ワイドバンドギャップスイッチングデバイスを備える、ことを特徴とするデバイス。 - 請求項20のデバイスであって、前記一次バイポーラデバイス段および前記バイポーラドライバ段のうち少なくとも1つが、ラッチ型スイッチングデバイスを備える、ことを特徴とするデバイス。
- 請求項21のデバイスであって、前記ラッチ型スイッチングデバイスが、サイリスタを備える、ことを特徴とするデバイス。
- 請求項20のデバイスであって、前記一次バイポーラデバイス段が、前記バイポーラドライバ段より大きな電流処理能力を有する、ことを特徴とするデバイス。
- 請求項20のデバイスであって、前記バイポーラドライバ段が、前記一次バイポーラデバイス段の制御領域に制御電流を供給するように構成される光起動ドライバデバイスを備える、ことを特徴とするデバイス。
- 請求項24のデバイスであって、前記光起動ドライバデバイスが、前記一次バイポーラデバイス段の前記制御領域の側面によって規定される領域内に形成される、ことを特徴とするデバイス。
- 請求項20のデバイスであって、さらに、前記ドライバ段と前記一次バイポーラデバイス段との間に設けられ、かつ前記一次バイポーラデバイス段の制御領域に電流を供給するように構成される二次ドライバ段を備える、デバイス。
- 請求項26のデバイスであって、前記光起動ドライバデバイスが、前記二次ドライバデバイスの制御領域に電流を供給するように構成され、そして、前記光起動ドライバデバイスが前記二次ドライバデバイスの前記制御領域の側面によって少なくとも部分的に規定される領域の周辺内に形成される、ことを特徴とするデバイス。
- 請求項27のデバイスであって、前記光起動ドライバデバイスおよび前記二次ドライバデバイスの両方が、前記一次バイポーラデバイス段の前記制御領域の側面によって少なくとも部分的に規定される領域の周辺内に形成される、ことを特徴とするデバイス。
- 請求項26のデバイスであって、前記バイポーラドライバ段、前記二次ドライバ段および前記一次バイポーラデバイス段が、前記ドライバ段、前記二次ドライバ段および一次バイポーラデバイス段の間の共通コレクタ領域を設ける炭化珪素基板上に製造されるバイポーラ接合トランジスタを備える、ことを特徴とするデバイス。
- 請求項29のデバイスであって、前記炭化珪素基板が第1の導電型を有し、前記デバイスが、前記第1の導電型に対して反対側の第2の導電型を有する前記基板上にエピタキシャル層を更に備え、前記エピタキシャル層が、分離領域の各々が前記ドライバ段、前記二次ドライバ段あるいは前記一次バイポーラデバイス段のうちの1つの制御領域を形成するように分離領域の中にパターニングされる、ことを特徴とするデバイス。
- 請求項30のデバイスであって、さらに、前記ドライバ段、前記二次ドライバ段および前記一次バイポーラデバイス段のそれぞれの制御領域上にエミッタ領域を備え、前記エミッタ領域が前記第1の導電型を有する、デバイス。
- 請求項30のデバイスであって、前記ドライバ段、前記二次ドライバ段および前記一次バイポーラデバイス段の前記制御領域が、メサおよび/または注入分離によって分離される、ことを特徴とするデバイス。
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