JP5166046B2 - SiGeバイポーラの歩留りを向上させるC打込み - Google Patents
SiGeバイポーラの歩留りを向上させるC打込み Download PDFInfo
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- 229910000577 Silicon-germanium Inorganic materials 0.000 title claims abstract description 99
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- 238000002955 isolation Methods 0.000 claims description 14
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 13
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- 239000000463 material Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 5
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 2
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
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Description
オステン他(H. J. Osten, et al.)の、「高周波用途向けのカーボン・ドープSiGeヘテロ接合バイポーラ・トランジスタ(CarbonDoped SiGe Heterojunction Bipolar Transistors for high Frequency Applications)」、IEEEBTCM 7.1、109
(a)少なくとも1つのバイポーラ素子領域を含む構造体を供用するステップを含み、前記バイポーラ素子領域がサブコレクタ領域の上に形成されたコレクタ領域、ならびに前記コレクタおよびサブコレクタ領域の上に形成されたSiGe層を少なくとも1つずつ備え、前記SiGe層が真性ベース領域およびコレクタ−ベース接合領域を少なくとも1つずつ備え、前記真性ベース領域が外部ベース領域に接しており;また
(b)前記コレクタ、前記サブコレクタ、前記外部ベース領域および前記コレクタ−ベース接合領域から選択される、前記構造体の少なくとも1つの領域にCを打ち込むステップ;
を含む、SiGeバイポーラの歩留りを向上させる方法を含む。
(a)少なくとも1つのバイポーラ素子領域を含む構造体を供用するステップを含み、前記バイポーラ素子領域はサブコレクタ領域の上に形成された少なくとも1つのコレクタ領域を備え、
(b)前記コレクタおよびサブコレクタ領域にCを打ち込むステップと、
(c)前記バイポーラ素子領域上にSiGe層を形成するステップを含み、前記SiGe層が真性ベース領域およびコレクタ−ベース接合領域を少なくとも1つずつ備え、前記真性ベース領域が外部ベース領域に接しており、
(d)前記外部ベース領域にCを打ち込むステップと、
(e)前記SiGe層の上に絶縁体層を形成するステップと、
(f)前記真性ベース領域の一部分を露出させるように前記絶縁体層にエミッタ開口部を設け、前記エミッタ開口部を通して、また前記真性ベース領域の露出した部分を通して、コレクタ−ベース接合領域にCを打ち込むステップと、
(g)前記エミッタ開口部内を含めて、前記絶縁体層上にエミッタ・ポリシリコン領域を形成するステップと、
を含む。
サブコレクタ領域およびコレクタ領域を少なくとも1つずつ含む第1の伝導型半導体基板、
前記基板上に形成されたSiGeベース層を備え、前記SiGeベース層はコレクタ領域の上に形成されたコレクタ−ベース接合領域と、真性ベース領域を少なくとも1つずつ備え、前記真性ベース領域は外部ベース領域に接しており、
前記真性ベース領域の一部分上に形成されたエミッタ領域を備え、前記エミッタ領域が少なくとも1つのエミッタ・ポリシリコン領域を備え、
前記コレクタ、前記サブコレクタ、前記外部ベース領域および前記コレクタ−ベース接合領域から選択される、前記構造体の少なくとも1つの領域が打込みCを含む。
いずれも打ち込まれたCでドープされたサブコレクタ領域およびコレクタ領域を少なくとも1つずつ含む第1の伝導型半導体基板、
前記基板上に形成されたSiGeベース層を備え、前記SiGeベース層はコレクタ領域の上に形成されたコレクタ−ベース接合領域、真性ベース領域および前記真性ベース領域に接する外部ベース領域を少なくとも1つずつ備え、前記コレクタ−ベース接合領域および前記外部ベース領域が打ち込まれたCでドープされており、
前記真性ベース領域の一部分上に形成されたエミッタ領域を備え、前記エミッタ領域は少なくとも1つのエミッタ・ポリシリコン領域を備える。
Claims (10)
- サブコレクタ領域およびコレクタ領域を少なくとも1つずつ含む第1の伝導型半導体基板と、
前記半導体基板上に形成されたSiGeベース層であって、前記コレクタ領域の上に形成されたコレクタ−ベース接合領域および真性ベース領域を少なくとも1つずつ備える前記SiGeベース層と、
前記真性ベース領域に近接し、前記SiGeベース層の上部領域に前記真性ベース領域から離れて位置する外部ベース領域と、
前記真性ベース領域の一部分の前記SiGeベース層に形成されたエミッタ領域であって、少なくとも1つのエミッタ・ポリシリコン領域を備える前記エミッタ領域と、
を含み、前記コレクタ領域、前記サブコレクタ領域、前記外部ベース領域および前記コレクタ−ベース接合領域の少なくとも1つの領域がC打込みされていて、前記真性ベース領域および前記真性ベース領域と前記外部ベース領域との間はC打込みされていない、SiGeヘテロ接合バイポーラ・トランジスタ。 - 前記半導体基板が、Si、Ge、SiGe、GaAs、InAs、InPおよび層状半導体からなる群から選択される半導体材料である請求項1に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記半導体材料がSiである請求項2に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記半導体基板がさらに分離領域を含む請求項1に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記分離領域がLOCOS領域またはトレンチ分離領域である請求項4に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記SiGeベース層が、epi−SiGe層である請求項1に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記SiGeベース層が、単結晶SiGe領域に接する多結晶SiGe層領域を含む請求項6に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記エミッタ領域がパターン化絶縁体層を含む請求項1に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- 前記パターン化絶縁体層が、SiO2、Siオキシナイトライドおよびこれらの複数層からなる群から選択される絶縁体材料からなる請求項8に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
- それに隣接して形成されたデジタル論理回路をさらに含む請求項1に記載のSiGeヘテロ接合バイポーラ・トランジスタ。
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US09/878,605 US6534371B2 (en) | 2001-06-11 | 2001-06-11 | C implants for improved SiGe bipolar yield |
US09/878,605 | 2001-06-11 |
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KR (1) | KR100615789B1 (ja) |
CN (1) | CN100459071C (ja) |
AT (1) | ATE439682T1 (ja) |
DE (1) | DE60233319D1 (ja) |
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US6699765B1 (en) * | 2002-08-29 | 2004-03-02 | Micrel, Inc. | Method of fabricating a bipolar transistor using selective epitaxially grown SiGe base layer |
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FR2852262B1 (fr) * | 2003-03-11 | 2007-01-12 | Procede et dispositif de nebulisation. | |
DE10316531A1 (de) * | 2003-04-10 | 2004-07-08 | Infineon Technologies Ag | Bipolar-Transistor |
JP3653087B2 (ja) | 2003-07-04 | 2005-05-25 | 三菱重工業株式会社 | Dc/dcコンバータ |
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DE102004021241A1 (de) * | 2004-04-30 | 2005-11-17 | Infineon Technologies Ag | Verfahren zur Herstellung eines planaren Spacers, eines zugehörigen Bipolartransistors und einer zugehörigen BiCMOS-Schaltungsanordnung |
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US6977398B2 (en) | 2005-12-20 |
US6720590B2 (en) | 2004-04-13 |
KR100615789B1 (ko) | 2006-08-25 |
DE60233319D1 (de) | 2009-09-24 |
KR20040005955A (ko) | 2004-01-16 |
WO2002101810A1 (en) | 2002-12-19 |
TWI222142B (en) | 2004-10-11 |
US20030136975A1 (en) | 2003-07-24 |
CN100459071C (zh) | 2009-02-04 |
EP1396018B8 (en) | 2009-12-16 |
EP2091076A2 (en) | 2009-08-19 |
JP4086778B2 (ja) | 2008-05-14 |
EP1396018B1 (en) | 2009-08-12 |
JP2008135775A (ja) | 2008-06-12 |
EP2091076A3 (en) | 2009-09-16 |
MY134124A (en) | 2007-11-30 |
US20020185708A1 (en) | 2002-12-12 |
US6534371B2 (en) | 2003-03-18 |
EP1396018A1 (en) | 2004-03-10 |
JP2004532531A (ja) | 2004-10-21 |
CN1723550A (zh) | 2006-01-18 |
ATE439682T1 (de) | 2009-08-15 |
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