JP2011508978A - 二重拡散型ソースmosfet(ldmos)トランジスタの高ドープ領域及びその作製方法 - Google Patents
二重拡散型ソースmosfet(ldmos)トランジスタの高ドープ領域及びその作製方法 Download PDFInfo
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Abstract
【選択図】 図4A
Description
Claims (29)
- 基板上にソース領域と、ドレイン領域と、ゲート領域とを有するトランジスタを作製する方法であって、
前記基板の表面に、nドープのn型ウェルを注入するステップと、
前記トランジスタのソース領域とドレイン領域との間にゲート酸化物を形成するステップと、
前記ゲート酸化物を導電材料で覆うステップと、
前記トランジスタの前記ソース領域内に、pドープのp型ボディを注入するステップと、
前記トランジスタの前記ソース領域内に、前記p型ボディと重複するように第1のnドープn+領域を注入するステップと、
前記トランジスタの前記ソース領域内にのみ、前記p型ボディと重複するようにソース高二重拡散(SHDD)領域を注入するステップであって、該SHDD領域が、前記第1のnドープn+領域の深さと略等しい深さまで注入されたnドープ領域であり、前記ゲート酸化物の下方において前記第1のnドープn+領域より更に横方向に延び、前記SHDD領域の一部分が、前記第1のnドープn+領域の一部分と重複する、該ステップと、
前記トランジスタの前記ソース領域内に、前記第1のnドープn+領域に近接させて、pドープp+領域を注入するステップと、
前記トランジスタの前記ドレイン領域内に、第2のnドープn+領域を注入するステップと、
前記ドレイン領域内に、nドープの浅いドレインを注入するステップと、
を含み、
前記SHDD領域が、前記nドープの浅いドレインの注入に使用されるドーパント濃度より高いが、前記第1のnドープn+領域の注入に使用されるドーパント濃度より低いドーパント濃度を用いて注入される、
方法。 - 前記SHDD領域が、前記第1のnドープn+領域全体を取り囲む、請求項1に記載の方法。
- 前記SHDDを注入した後、並びに、前記第1のnドープn+領域及び前記第2のnドープn+領域を注入する前に、前記ゲート酸化物の両側上に酸化物スペーサを形成するステップを更に含む、請求項1に記載の方法。
- 前記酸化物スペーサが、前記第1のnドープn+領域及び前記第2のnドープn+領域の形成前に形成される、請求項3に記載の方法。
- 前記SHDDが、前記ゲート酸化物の形成後に形成される、請求項3に記載の方法。
- 前記ソース領域において、前記SHDD領域の表面領域、前記第1のnドープn+領域の表面領域、及び前記pドープp+領域の表面領域が、前記pドープのp型ボディの表面領域内に位置する、請求項1に記載の方法。
- 前記pドープp+領域が、前記第1のnドープn+領域に接する、請求項1に記載の方法。
- ソースと、
ドレインと、
前記ソースと前記ドレインとの間の空乏領域を制御するゲートと、
を備え、
前記ソースが、
pドープのp型ボディと、
前記p型ボディと重複するpドープp+領域と、
前記pドープp+領域に近接して前記p型ボディと重複する第1のnドープn+領域と、
前記トランジスタの前記ソース領域内にのみに設けられたnドープのソース高二重拡散(SHDD)領域であって、前記p型ボディと重複し、前記第1のnドープn+領域の深さに略等しい深さを有し、前記第1のnドープn+領域と重複する、該SHDD領域と、
を含み、
前記ドレインが、
第2のnドープn+領域と、
前記第2のnドープn+領域と重複するnドープの浅いドレインと、
を含み、
前記ゲートが、ゲート酸化物と、前記ゲート酸化物上の導電材料と、を含み、前記SHDD領域が、前記ゲート酸化物の下方において前記第1のnドープn+領域より更に横方向に延び、
前記SHDD領域が、前記nドープの浅いドレインの注入に使用されるドーパント濃度より高いが、前記第1のnドープn+領域の注入に使用されるドーパント濃度より低いドーパント濃度を用いて注入されている、
トランジスタ。 - 前記第2のn+領域が、前記nドープの浅いドレインより深くに延びる、請求項8に記載のトランジスタ。
- 前記SHDD領域が、前記第1のnドープn+領域全体を取り囲む、請求項8に記載のトランジスタ。
- 前記pドープp+領域が、前記第1のnドープn+領域に接する、請求項8に記載のトランジスタ。
- 入力電圧源に結合される入力端子と、負荷に結合される出力端子とを有する電圧レギュレータであって、
請求項8に記載のトランジスタを含むパワースイッチであって、そのデューティーサイクルが、前記出力端子に供給される電力を制御する、該パワースイッチと、
前記出力端子で略DCの出力電圧を与えるフィルタと、
を備える電圧レギュレータ。 - 基板上にソース領域と、ドレイン領域と、ゲート領域とを有するトランジスタの作製方法において、
前記トランジスタのソース領域とドレイン領域との間にゲート酸化物を形成するステップと、
前記ゲート酸化物を導電材料で覆うステップと、
前記トランジスタの前記ソース領域内に、pドープのp型ボディを注入するステップと、
前記トランジスタの前記ソース領域内において、前記p型ボディに第1のnドープn+領域を注入するステップと、
前記トランジスタの前記ソース領域内にのみ、前記p型ボディと重複するようにソース高二重拡散(SHDD)領域を注入するステップであって、該SHDD領域の一部分が、前記第1のnドープn+領域の一部分と重複し、該SHDD領域が、前記ゲート酸化物の下方において前記第1のnドープn+領域より更に横方向に延びる、該ステップと、
前記トランジスタの前記ソース領域内に、前記第1のnドープn+領域に近接させて、前記p型ボディ内のpドープp+領域を注入するステップと、
前記トランジスタの前記ドレイン領域内に、第2のnドープn+領域を注入するステップと、
前記ドレイン領域内に、前記pドープのp型ボディに接触するように前記ゲート酸化物の下方に延びるnドープの浅いドレインを注入するステップと、
前記トランジスタの前記ソース領域内に、pドープp+領域を注入するステップと、
を含む方法。 - 前記SHDD領域が、前記第1のnドープn+領域全体を取り囲む、請求項13に記載の方法。
- 前記SHDD領域が、前記第1のnドープn+領域の深さと略等しい深さまで注入される、請求項13に記載の方法。
- 前記SHDD領域が、前記第1のnドープn+領域を注入する際に用いられる不純物濃度より低い不純物濃度を用いて注入される、請求項13に記載の方法。
- 前記SHDD領域が、nドープの浅いドレインを注入する際に用いられたドーパントレベルより高いドーパントレベルを用いて注入される、請求項13に記載の方法。
- 前記pドープp+領域が、前記第1のnドープn+領域に接する、請求項13に記載の方法。
- ソースと、
ドレインと、
前記ソースと前記ドレインとの間の空乏領域を制御するゲートと、
を備え、
前記ソースが、
pドープのp型ボディと、
前記p型ボディと重複するpドープp+領域と、
前記pドープp+領域に近接して前記p型ボディと重複する第1のnドープn+領域と、
前記トランジスタの前記ソース領域内にのみ設けられたnドープのソース高二重拡散(SHDD)領域であって、前記p型ボディと重複し、その一部分が前記第1のnドープn+領域と重複する、該SHDD領域と、
を含み、
前記ドレインが、
第2のnドープn+領域と、
nドープの浅いドレインと、
を含み、
前記ゲートが、ゲート酸化物と、前記ゲート酸化物上の導電材料と、を含み、前記SHDD領域が、前記ゲート酸化物の下方において前記第1のnドープn+領域より更に横方向に延び、
前記nドープの浅いドレインが、前記pドープのp型ボディと接触するように前記ゲート酸化物の下方に延びる、
トランジスタ。 - 前記第2のn+領域が、前記nドープの浅いドレインより深くに延びる、請求項19に記載のトランジスタ。
- 前記第2のnドープn+領域が、前記トランジスタの前記ゲートに自己整合されている、請求項19に記載のトランジスタ。
- 前記第1のn+領域が、前記p型ボディに取り囲まれる、請求項19に記載のトランジスタ。
- 前記p型ボディが、前記p+領域、前記第1のn+領域、及び前記SHDD領域より深い、請求項19に記載のトランジスタ。
- 前記SHDD領域が、前記第1のnドープn+領域の全体を取り囲む、請求項19に記載のトランジスタ。
- 前記SHDD領域が、前記第1のnドープn+領域の深さと略等しい深さまで注入されている、請求項19に記載のトランジスタ。
- 前記SHDD領域が、前記第1のnドープn+領域を注入する際に用いられる不純物濃度より低い不純物濃度を用いて注入されている、請求項19に記載のトランジスタ。
- 前記SHDD領域の外側境界が、前記第1のnドープn+領域の外側境界に整合されている、請求項19に記載のトランジスタ。
- 前記pドープp+領域が、前記第1のnドープn+領域に接する、請求項19に記載のトランジスタ。
- 入力電圧源に結合される入力端子と、負荷に結合される出力端子とを有する電圧レギュレータであって、
請求項19に記載のトランジスタを含むパワースイッチであって、そのデューティーサイクルが、前記出力端子に供給される電力を制御する、該パワースイッチと、
前記出力端子で略DCの出力電圧を与えるフィルタと、
を備える電圧レギュレータ。
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Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8207580B2 (en) * | 2009-05-29 | 2012-06-26 | Power Integrations, Inc. | Power integrated circuit device with incorporated sense FET |
TWI401801B (zh) * | 2010-02-01 | 2013-07-11 | Richtek Technology Corp | 增加擊穿防護電壓之橫向擴散金屬氧化物半導體元件與製作方法 |
CN102148247B (zh) * | 2010-02-04 | 2013-07-31 | 立锜科技股份有限公司 | 增加击穿防护电压的横向扩散金属氧化物半导体元件与制作方法 |
US8841723B2 (en) | 2010-03-10 | 2014-09-23 | Richtek Technology Corporation, R.O.C. | LDMOS device having increased punch-through voltage and method for making same |
US9293577B2 (en) * | 2010-03-30 | 2016-03-22 | Volterra Semiconductor LLC | LDMOS with no reverse recovery |
US20130320445A1 (en) * | 2012-06-04 | 2013-12-05 | Ming-Tsung Lee | High voltage metal-oxide-semiconductor transistor device |
KR101988425B1 (ko) | 2012-11-05 | 2019-06-12 | 삼성전자주식회사 | 반도체 소자 및 그의 제조 방법 |
CN103855212B (zh) * | 2012-12-04 | 2018-10-23 | 中芯国际集成电路制造(上海)有限公司 | 一种横向扩散半导体器件 |
WO2016168123A1 (en) * | 2015-04-12 | 2016-10-20 | NEO Semiconductor, Inc. | A cmos anti-fuse cell |
US9985019B2 (en) * | 2015-09-16 | 2018-05-29 | Vanguard International Semiconductor Corporation | Semiconductor structure with high-voltage and low-voltage CMOS devices and method for manufacturing the same |
KR102495452B1 (ko) | 2016-06-29 | 2023-02-02 | 삼성전자주식회사 | 반도체 장치 |
CN108682689B (zh) | 2018-05-25 | 2023-12-01 | 矽力杰半导体技术(杭州)有限公司 | 横向扩散金属氧化物半导体结构和其形成方法 |
CN108682690B (zh) | 2018-05-25 | 2024-05-24 | 矽力杰半导体技术(杭州)有限公司 | 横向扩散金属氧化物半导体器件和其制造方法 |
CN108807543B (zh) | 2018-05-25 | 2023-12-15 | 矽力杰半导体技术(杭州)有限公司 | 横向扩散金属氧化物半导体器件及其制造方法 |
CN108598156A (zh) | 2018-05-29 | 2018-09-28 | 矽力杰半导体技术(杭州)有限公司 | Ldmos晶体管及其制造方法 |
CN108847423B (zh) | 2018-05-30 | 2022-10-21 | 矽力杰半导体技术(杭州)有限公司 | 半导体器件及其制造方法 |
CN109346467A (zh) | 2018-08-17 | 2019-02-15 | 矽力杰半导体技术(杭州)有限公司 | 半导体结构、驱动芯片和半导体结构的制造方法 |
CN109346466B (zh) | 2018-08-17 | 2020-10-16 | 矽力杰半导体技术(杭州)有限公司 | 半导体结构和驱动芯片 |
CN109326594A (zh) | 2018-08-20 | 2019-02-12 | 矽力杰半导体技术(杭州)有限公司 | 一种半导体晶片 |
PL3838796T3 (pl) | 2019-12-19 | 2024-02-19 | Soremartec S.A. | Opakowanie do produktów spożywczych z narzędziem do jedzenia |
CN111668186A (zh) | 2020-06-08 | 2020-09-15 | 矽力杰半导体技术(杭州)有限公司 | 半导体器件及其制造方法 |
JP2023539108A (ja) * | 2020-08-19 | 2023-09-13 | 華為技術有限公司 | DrMOS、集積回路、電子機器、及び製造方法 |
CN112234094B (zh) | 2020-09-29 | 2022-07-29 | 矽力杰半导体技术(杭州)有限公司 | 金属氧化物半导体器件及其制造方法 |
US11410893B1 (en) * | 2021-01-31 | 2022-08-09 | Nanya Technology Corporation | Semiconductor structure |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09139438A (ja) * | 1995-11-15 | 1997-05-27 | Denso Corp | 半導体装置およびその製造方法 |
JPH10506755A (ja) * | 1994-09-27 | 1998-06-30 | マイクレル,インコーポレーテッド | エンハンストドリフト領域を備える高電圧横型dmosデバイス |
JPH11330452A (ja) * | 1998-05-11 | 1999-11-30 | Matsushita Electron Corp | 半導体装置およびその製造方法 |
JPH11340454A (ja) * | 1998-05-28 | 1999-12-10 | Matsushita Electron Corp | 半導体装置およびその製造方法 |
JP2002314066A (ja) * | 2001-04-13 | 2002-10-25 | Sanyo Electric Co Ltd | Mos半導体装置およびその製造方法 |
JP2005093456A (ja) * | 2003-09-11 | 2005-04-07 | Shindengen Electric Mfg Co Ltd | 横型短チャネルdmos及びその製造方法並びに半導体装置 |
JP2005252150A (ja) * | 2004-03-08 | 2005-09-15 | Sharp Corp | 半導体装置及びその製造方法、cmos型レギュレータ、電子機器 |
JP2007027641A (ja) * | 2005-07-21 | 2007-02-01 | Toshiba Corp | 半導体装置及びその製造方法 |
US20070207600A1 (en) * | 2006-03-02 | 2007-09-06 | Volterra Semiconductor Corporation | Lateral Double-Diffused Mosfet (LDMOS) Transistor and a Method of Fabricating the Same |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69225552T2 (de) | 1991-10-15 | 1999-01-07 | Texas Instruments Inc., Dallas, Tex. | Lateraler doppel-diffundierter MOS-Transistor und Verfahren zu seiner Herstellung |
US5349225A (en) | 1993-04-12 | 1994-09-20 | Texas Instruments Incorporated | Field effect transistor with a lightly doped drain |
US6831331B2 (en) | 1995-11-15 | 2004-12-14 | Denso Corporation | Power MOS transistor for absorbing surge current |
US6137140A (en) | 1997-11-26 | 2000-10-24 | Texas Instruments Incorporated | Integrated SCR-LDMOS power device |
US6252278B1 (en) | 1998-05-18 | 2001-06-26 | Monolithic Power Systems, Inc. | Self-aligned lateral DMOS with spacer drift region |
US6424005B1 (en) | 1998-12-03 | 2002-07-23 | Texas Instruments Incorporated | LDMOS power device with oversized dwell |
US6400126B1 (en) * | 1999-12-30 | 2002-06-04 | Volterra Semiconductor Corporation | Switching regulator with multiple power transistor driving voltages |
EP1148555A1 (en) | 2000-04-21 | 2001-10-24 | STMicroelectronics S.r.l. | RESURF LDMOS field-effect transistor |
JP2002094063A (ja) | 2000-09-11 | 2002-03-29 | Toshiba Corp | 半導体装置 |
US6593621B2 (en) | 2001-08-23 | 2003-07-15 | Micrel, Inc. | LDMOS field effect transistor with improved ruggedness in narrow curved areas |
EP1321985B1 (en) | 2001-12-20 | 2007-10-24 | STMicroelectronics S.r.l. | Method of integrating metal oxide semiconductor field effect transistors |
US6762456B1 (en) | 2001-12-26 | 2004-07-13 | Sirenza Microdevices, Inc. | Multiple conductive plug structure including at least one conductive plug region and at least one between-conductive-plug region for lateral RF MOS devices |
US6876035B2 (en) | 2003-05-06 | 2005-04-05 | International Business Machines Corporation | High voltage N-LDMOS transistors having shallow trench isolation region |
US20050006701A1 (en) | 2003-07-07 | 2005-01-13 | Tzu-Chiang Sung | High voltage metal-oxide semiconductor device |
JP4198006B2 (ja) | 2003-07-25 | 2008-12-17 | 株式会社リコー | 半導体装置の製造方法 |
US6927453B2 (en) | 2003-09-30 | 2005-08-09 | Agere Systems Inc. | Metal-oxide-semiconductor device including a buried lightly-doped drain region |
US7005703B2 (en) | 2003-10-17 | 2006-02-28 | Agere Systems Inc. | Metal-oxide-semiconductor device having improved performance and reliability |
US7074659B2 (en) | 2003-11-13 | 2006-07-11 | Volterra Semiconductor Corporation | Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor |
US7220633B2 (en) | 2003-11-13 | 2007-05-22 | Volterra Semiconductor Corporation | Method of fabricating a lateral double-diffused MOSFET |
US7038274B2 (en) | 2003-11-13 | 2006-05-02 | Volterra Semiconductor Corporation | Switching regulator with high-side p-type device |
US7163856B2 (en) | 2003-11-13 | 2007-01-16 | Volterra Semiconductor Corporation | Method of fabricating a lateral double-diffused mosfet (LDMOS) transistor and a conventional CMOS transistor |
EP1577952B1 (en) | 2004-03-09 | 2018-07-04 | STMicroelectronics Srl | Method of making a high voltage insulated gate field-effect transistor |
US7525150B2 (en) | 2004-04-07 | 2009-04-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | High voltage double diffused drain MOS transistor with medium operation voltage |
JP2006202810A (ja) | 2005-01-18 | 2006-08-03 | Sharp Corp | 横型二重拡散型mosトランジスタおよびその製造方法 |
-
2008
- 2008-12-24 US US12/344,167 patent/US7999318B2/en not_active Expired - Fee Related
- 2008-12-26 TW TW097150976A patent/TWI462186B/zh not_active IP Right Cessation
- 2008-12-29 EP EP08868218A patent/EP2225771A4/en not_active Withdrawn
- 2008-12-29 JP JP2010540924A patent/JP5473076B2/ja not_active Expired - Fee Related
- 2008-12-29 CN CN2008801233266A patent/CN101911268B/zh not_active Expired - Fee Related
- 2008-12-29 WO PCT/US2008/088439 patent/WO2009086517A2/en active Application Filing
-
2011
- 2011-07-15 US US13/184,333 patent/US8455340B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10506755A (ja) * | 1994-09-27 | 1998-06-30 | マイクレル,インコーポレーテッド | エンハンストドリフト領域を備える高電圧横型dmosデバイス |
JPH09139438A (ja) * | 1995-11-15 | 1997-05-27 | Denso Corp | 半導体装置およびその製造方法 |
JPH11330452A (ja) * | 1998-05-11 | 1999-11-30 | Matsushita Electron Corp | 半導体装置およびその製造方法 |
JPH11340454A (ja) * | 1998-05-28 | 1999-12-10 | Matsushita Electron Corp | 半導体装置およびその製造方法 |
JP2002314066A (ja) * | 2001-04-13 | 2002-10-25 | Sanyo Electric Co Ltd | Mos半導体装置およびその製造方法 |
JP2005093456A (ja) * | 2003-09-11 | 2005-04-07 | Shindengen Electric Mfg Co Ltd | 横型短チャネルdmos及びその製造方法並びに半導体装置 |
JP2005252150A (ja) * | 2004-03-08 | 2005-09-15 | Sharp Corp | 半導体装置及びその製造方法、cmos型レギュレータ、電子機器 |
JP2007027641A (ja) * | 2005-07-21 | 2007-02-01 | Toshiba Corp | 半導体装置及びその製造方法 |
US20070207600A1 (en) * | 2006-03-02 | 2007-09-06 | Volterra Semiconductor Corporation | Lateral Double-Diffused Mosfet (LDMOS) Transistor and a Method of Fabricating the Same |
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WO2009086517A2 (en) | 2009-07-09 |
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