Article(id=1154040958338454159, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154040955071095059, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2024.1.147, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1616428800000, receivedDateStr=2021-03-23, revisedDate=1621785600000, revisedDateStr=2021-05-24, acceptedDate=1622563200000, acceptedDateStr=2021-06-02, onlineDate=1753074405512, onlineDateStr=2025-07-21, pubDate=1706544000000, pubDateStr=2024-01-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753074405512, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753074405512, creator=13701087609, updateTime=1753074405512, updator=13701087609, issue=Issue{id=1154040955071095059, tenantId=1146029695717560320, journalId=1146031654075715584, year='2024', volume='22', issue='1', pageStart='1', pageEnd='235', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753074404733, creator=13701087609, updateTime=1753781011721, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157004679654760494, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154040955071095059, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157004679654760495, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154040955071095059, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=147, endPage=152, ext={EN=ArticleExt(id=1154040958820799122, articleId=1154040958338454159, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Investigation on Reliability of High-temperature Gate Oxide in SIC MOSFET, columnId=1153024086025429058, journalTitle=Journal of Power Supply, columnName=Power Semiconductor Devices, runingTitle=null, highlight=null, articleAbstract=
Silicon carbide (SiC) is a promising wide-bandgap semiconductor material owing to its excellent electrical and thermal characteristics. Power metal-oxide-semiconductor field-effect transistors (MOSFETs) based on SiC are suitable for high-power fields, and their high-temperature gate oxide reliability is one of the most concerned characteristics. In this paper, the high-temperature gate oxide reliability of self-developed SiC MOSFETs is compared with that of the foreign SiC MOSFETs of the same specification by positive and negative high-temperature gate bias (HTGB) tests. The negative HTGB test results show that the deviation of threshold voltage of self-developed SiC MOSFETs is almost equal to that of the foreign SiC MOSFETs, and the maximum discrepancy between them is about 4.52%. However, the positive HTGB test results show that the deviation of threshold voltage of self-developed SiC MOSFETs is smaller than that of the foreign SiC MOSFETs, with a maximum discrepancy of 11%. The reason for the better performance of self-developed devices is that an appropriate amount of nitrogen is added to the SiC/SiO2 interface, which can passivate interface defects and reduce the generation of fast interface states, so that the total interface state density is minimized.
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碳化硅 SiC(silicon carbide)具有优良的电学和热学特性,是一种前景广阔的宽禁带半导体材料。SiC 材料制成的功率MOSFET(metal-oxide-semiconductor field-effect transistor)非常适合应用于大功率领域,而高溫栅氧可靠性是大功率MOSFET 最需要关注的特性之一。通过正压高温栅偏试验和负压高温栅偏试验对比了自研SiC MOSFET和国外同规格 SiC MOSFET的高温栅氧可靠性。负压高温栅偏试验结果显示自研 SiC MOSFET与国外SiC MOSFET的阈值电压偏移量基本相等,阈值电压偏移量百分比最大相差在4.52%左右。正压高温栅偏试验的结果显示自研SiC MOSFET的阈值电压偏移量较小,与国外 SiC MOSFET相比,自研SiC MOSFET的阈值电压偏移量百分比最大相差11%。自研器件占优势的原因是在SiC/SiO2界面处引入了适量的氮元素,钝化界面缺陷的同时,减少了快界面态的产生,使总的界面态密度被降到最低。
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 |
刘建君(1994-),男,硕士。研究方向:SiC 功率器件研发。E-mail:liujianjun@ime.ac.cn。 |
陈宏(1987-),男,博士,助理研究员。研究方向: SiC 功率器件研发。E-mail:chenhong@ime.ac.cn。
丁杰钦(1986-),男,博士,工程师。研究方向:SiC 功率器件研发。E-mail: dingjq@csrzic.com。
白云(1978-),女,通信作者,博士,研究员。研究方向:SiC 功率器件研发。E-mail:baiyun@ime.ac.cn。
郝继龙(1990-),男,博士,助理研究员。研究方向:SiC 功率器件研发。E-mail:haojilong@ime.ac.cn。
韩忠霖(1993-),男,博士。研究方向:SiC 功率器件研发。E-mail:hanzhonglin@ime.ac.cn。
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1 School of Microelectronics University of Chinese Academy of Sciences Beijing 100049 China
2 Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154041001221018368, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, authorId=1154041001074217724, language=CN, stringName=刘建君, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 中国科学院大学微电子学院 微电子学院 北京 100049
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刘建君(1994-),男,硕士。研究方向:SiC 功率器件研发。E-mail:liujianjun@ime.ac.cn。
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陈宏(1987-),男,博士,助理研究员。研究方向: SiC 功率器件研发。E-mail:chenhong@ime.ac.cn。
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陈宏(1987-),男,博士,助理研究员。研究方向: SiC 功率器件研发。E-mail:chenhong@ime.ac.cn。
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3 Semiconductor Co., Ltd Zhuzhou CRRC Times Semiconductor Co., Ltd Zhuzhou 412001 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154041001615282954, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, authorId=1154041001464288007, language=CN, stringName=丁杰钦, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3 株洲中车时代半导体有限公司 半导体有限公司 株洲 412001, bio={"content":"
丁杰钦(1986-),男,博士,工程师。研究方向:SiC 功率器件研发。E-mail: dingjq@csrzic.com。
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丁杰钦(1986-),男,博士,工程师。研究方向:SiC 功率器件研发。E-mail: dingjq@csrzic.com。
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白云(1978-),女,通信作者,博士,研究员。研究方向:SiC 功率器件研发。E-mail:baiyun@ime.ac.cn。
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白云(1978-),女,通信作者,博士,研究员。研究方向:SiC 功率器件研发。E-mail:baiyun@ime.ac.cn。
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郝继龙(1990-),男,博士,助理研究员。研究方向:SiC 功率器件研发。E-mail:haojilong@ime.ac.cn。
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郝继龙(1990-),男,博士,助理研究员。研究方向:SiC 功率器件研发。E-mail:haojilong@ime.ac.cn。
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2 中国科学院微电子研究所 微电子研究所 北京 100029, bio={"content":"
韩忠霖(1993-),男,博士。研究方向:SiC 功率器件研发。E-mail:hanzhonglin@ime.ac.cn。
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韩忠霖(1993-),男,博士。研究方向:SiC 功率器件研发。E-mail:hanzhonglin@ime.ac.cn。
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HTGB test circuit for SiC MOSFET, figureFileSmall=tYiJJO4975lU7YCIBL2ewA==, figureFileBig=KZ8YxRFmJ2eb9Yb1JreK6A==, tableContent=null), ArticleFig(id=1154041004870062883, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=图1, caption=
SiC MOSFET 高温栅偏试验电路, figureFileSmall=tYiJJO4975lU7YCIBL2ewA==, figureFileBig=KZ8YxRFmJ2eb9Yb1JreK6A==, tableContent=null), ArticleFig(id=1154041004920394532, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Fig. 2, caption=
Results of negative HTGB test, figureFileSmall=rYig51rpYUq94EVaD0cTiw==, figureFileBig=WhiBak8XXefT69dLsMfffA==, tableContent=null), ArticleFig(id=1154041004987503397, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=图2, caption=
负压高温栅偏试验测试结果, figureFileSmall=rYig51rpYUq94EVaD0cTiw==, figureFileBig=WhiBak8XXefT69dLsMfffA==, tableContent=null), ArticleFig(id=1154041005042029350, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Fig. 3, caption=
Test results of ${\mathbf{I}}_{\text{GSSF }}$ and ${\mathbf{I}}_{\text{GSSR }}$ (negative HTGB test), figureFileSmall=e59d9CnTKFeNPzhMKeIBUw==, figureFileBig=RUGHIW4D7iC12gAdSMiRxQ==, tableContent=null), ArticleFig(id=1154041005088166695, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=图3, caption=
正向栅源漏电流 ${\mathbf{I}}_{\text{GSSF }}$ 和反向栅源漏电流 ${\mathbf{I}}_{\text{GSSR }}$ 测试结果(负压 HTGB 试验), figureFileSmall=e59d9CnTKFeNPzhMKeIBUw==, figureFileBig=RUGHIW4D7iC12gAdSMiRxQ==, tableContent=null), ArticleFig(id=1154041005151081256, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Fig. 4, caption=
Results of positive HTGB test, figureFileSmall=fNFURvU1sgUypHog3BHT0A==, figureFileBig=vcewofJ9gxPy8CvOSOBEXg==, tableContent=null), ArticleFig(id=1154041005193024297, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=图4, caption=
正压高温栅偏试验测试结果, figureFileSmall=fNFURvU1sgUypHog3BHT0A==, figureFileBig=vcewofJ9gxPy8CvOSOBEXg==, tableContent=null), ArticleFig(id=1154041005247550250, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Fig. 5, caption=
Test results of ${\mathbf{I}}_{\text{GSSF }}$ and ${\mathbf{I}}_{\text{GSSR }}$ (positive HTGB test), figureFileSmall=hRUnmR5etKgC2AWpzTNSdg==, figureFileBig=PtxYAjCxcKIz6bix0sS3yA==, tableContent=null), ArticleFig(id=1154041005293687595, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=图5, caption=
正向栅源漏电流 ${\mathbf{I}}_{\text{GSSF }}$ 和反向栅源漏电流 ${\mathbf{I}}_{\text{GSSR }}$ 测试结果 (正压 HTGB 试验), figureFileSmall=hRUnmR5etKgC2AWpzTNSdg==, figureFileBig=PtxYAjCxcKIz6bix0sS3yA==, tableContent=null), ArticleFig(id=1154041005348213548, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Tab. 1, caption=
Comparison of threshold voltage before and after negative HTGB test, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件编号 | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\left({\Delta {V}_{\mathrm{{TH}}}/}\right.$ $\left.{V}_{\mathrm{{TH}}}\right)/\%$ |
| 测试前 | 测试后 |
| A | 1.98 | 1.77 | 0.20 | 10.29 |
| B | 2.19 | 2.02 | 0.16 | 7.41 |
| R | 3.67 | 3.46 | 0.21 | 5.77 |
| C | 2.43 | 2.27 | 0.15 | 6.37 |
), ArticleFig(id=1154041005419516717, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=表1, caption=
负压 HTGB 测试前后阈值电压对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件编号 | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\left({\Delta {V}_{\mathrm{{TH}}}/}\right.$ $\left.{V}_{\mathrm{{TH}}}\right)/\%$ |
| 测试前 | 测试后 |
| A | 1.98 | 1.77 | 0.20 | 10.29 |
| B | 2.19 | 2.02 | 0.16 | 7.41 |
| R | 3.67 | 3.46 | 0.21 | 5.77 |
| C | 2.43 | 2.27 | 0.15 | 6.37 |
), ArticleFig(id=1154041005474042670, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Tab. 2, caption=
Comparison of threshold voltage before and after positive HTGB test, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件编号 | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/$ | $\left({\Delta {V}_{\mathrm{{TH}}}/}\right.$ | ${24}\mathrm{\;h}$后复测 |
| 测试前 | 测试后 | V | ${V}_{\mathrm{{TH}}}$ )/% | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/\mathrm{V}$ |
| A | 2.00 | 2.38 | 0.39 | 19.36 | 2.18 | -0.20 |
| B | 2.21 | 2.60 | 0.39 | 17.81 | 2.40 | -0.19 |
| R | 3.52 | 4.63 | 1.11 | 31.56 | 3.98 | -0.65 |
| C | 2.45 | 3.15 | 0.70 | 28.65 | 2.58 | -0.57 |
), ArticleFig(id=1154041005545345839, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=表2, caption=
正压 HTGB 测试前后阈值电压对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件编号 | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/$ | $\left({\Delta {V}_{\mathrm{{TH}}}/}\right.$ | ${24}\mathrm{\;h}$后复测 |
| 测试前 | 测试后 | V | ${V}_{\mathrm{{TH}}}$ )/% | ${V}_{\mathrm{{TH}}}/\mathrm{V}$ | $\Delta {V}_{\mathrm{{TH}}}/\mathrm{V}$ |
| A | 2.00 | 2.38 | 0.39 | 19.36 | 2.18 | -0.20 |
| B | 2.21 | 2.60 | 0.39 | 17.81 | 2.40 | -0.19 |
| R | 3.52 | 4.63 | 1.11 | 31.56 | 3.98 | -0.65 |
| C | 2.45 | 3.15 | 0.70 | 28.65 | 2.58 | -0.57 |
), ArticleFig(id=1154041005599871792, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=EN, label=Tab. 3, caption=
Gate oxide annealing conditions of self-developed devices, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件 编号 | 氮化气体 体积分数$/\%$ | 退火时间/ min | 退火温度/℃ | Ar 退火 时间/min |
| A | 12 | 70 | 1200 | 40 |
| B | 4 | 70 | 1200 | 40 |
), ArticleFig(id=1154041005654397745, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154040958338454159, language=CN, label=表3, caption=
自研器件的栅氧化层退火, figureFileSmall=null, figureFileBig=null, tableContent=
| 器件 编号 | 氮化气体 体积分数$/\%$ | 退火时间/ min | 退火温度/℃ | Ar 退火 时间/min |
| A | 12 | 70 | 1200 | 40 |
| B | 4 | 70 | 1200 | 40 |
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