JP2012198201A - 半導体の欠陥評価方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 58
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- 238000011156 evaluation Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims 1
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- 239000010408 film Substances 0.000 description 36
- 239000000758 substrate Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000000691 measurement method Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910007541 Zn O Inorganic materials 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108091006149 Electron carriers Proteins 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- QELSIJXWEROXOE-UHFFFAOYSA-N asoxime chloride Chemical compound [Cl-].[Cl-].C1=CC(C(=O)N)=CC=[N+]1COC[N+]1=CC=CC=C1\C=N\O QELSIJXWEROXOE-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
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- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
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Abstract
【解決手段】CPM測定の際、ワイドバンドギャップ半導体などの光応答性の低い試料に光を照射することで生成される光励起キャリアを、試料に設けられた測定用の2電極に加えて設けられた第3の電極に正のバイアス電圧を印加することにより瞬時に追い出す。光励起キャリアが追い出されることにより、光電流値の制御性が高まり、光応答性の低い試料においても精度よくCPM測定を行うことができる。
【選択図】図1
Description
本実施の形態では、本発明の一態様であるCPM測定方法を図1を用いて説明する。
本実施の形態では、本発明の一態様に係るCPM測定装置および試料構造について図2および図3を用いて説明する。
S102 ステップ
S103 ステップ
S104 ステップ
S105 ステップ
S106 ステップ
S107 ステップ
S108 ステップ
S109 ステップ
S110 ステップ
S111 ステップ
201 ランプ
202 モノクロメータ
203 フィルタ
204 ビームスプリッタ
205 試料
206 直流電源
207 ロックインアンプ
208 計算機
209 ロックインアンプ
210 フォトダイオード
220 支持体
222 絶縁膜
223 ワイドバンドギャップ半導体膜
231 第1の電極
232 第2の電極
233 第3の電極
241 第1の電極
242 第2の電極
300 基板
304 電極
306 酸化物半導体膜
312 絶縁膜
316 一対の電極
318 絶縁膜
Claims (5)
- 半導体膜上の一対の電極と、前記半導体膜下の絶縁膜と、前記絶縁膜下の電極と、を有する試料に対し、
前記一対の電極間に直流電圧を印加し、
前記試料に任意の波長の光を当て、前記一対の電極間を流れる光電流値を検出し、
前記任意の波長の光を遮り、前記半導体膜に生じた光励起キャリアを低減させる処理を行い、
前記電流値が任意の値の近傍になるように前記任意の波長の光の光量を変え、
前記任意の波長の光の波長および光量を記録することを特徴とする半導体の欠陥評価方法。 - 請求項1において、
前記電流値が任意の値から一定範囲内であるときは、前記任意の波長の光の波長および光量を記録し、かつ前記任意の波長の光の波長を変更し、
前記電流値が任意の値から一定範囲外であるときは、前記任意の波長の光に対して減光処理を行い、
任意の波長範囲において、前記任意の波長の光の波長および光量を記録することを特徴とする半導体の欠陥評価方法。 - 請求項1または請求項2において、
前記光励起キャリアを低減させる処理として前記電極に正のバイアス電圧を印加することを特徴とする半導体の欠陥評価方法。 - 請求項3において、
前記正のバイアス電圧を1μsec以上1sec以下の範囲で印加することを特徴とする半導体の欠陥評価方法。 - 請求項1乃至請求項4のいずれか一において、
前記半導体膜が、酸化物半導体膜であることを特徴とする半導体の欠陥評価方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2012048890A JP5948093B2 (ja) | 2011-03-08 | 2012-03-06 | 半導体の欠陥評価方法 |
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JP2011049786 | 2011-03-08 | ||
JP2011049786 | 2011-03-08 | ||
JP2012048890A JP5948093B2 (ja) | 2011-03-08 | 2012-03-06 | 半導体の欠陥評価方法 |
Publications (2)
Publication Number | Publication Date |
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JP2012198201A true JP2012198201A (ja) | 2012-10-18 |
JP5948093B2 JP5948093B2 (ja) | 2016-07-06 |
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JP2012048890A Expired - Fee Related JP5948093B2 (ja) | 2011-03-08 | 2012-03-06 | 半導体の欠陥評価方法 |
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US (1) | US8625085B2 (ja) |
JP (1) | JP5948093B2 (ja) |
Cited By (1)
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---|---|---|---|---|
JP2014103389A (ja) * | 2012-10-24 | 2014-06-05 | Semiconductor Energy Lab Co Ltd | 半導体装置及びその作製方法 |
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US10446728B2 (en) * | 2014-10-31 | 2019-10-15 | eLux, Inc. | Pick-and remove system and method for emissive display repair |
US9633710B2 (en) | 2015-01-23 | 2017-04-25 | Semiconductor Energy Laboratory Co., Ltd. | Method for operating semiconductor device |
US11379231B2 (en) | 2019-10-25 | 2022-07-05 | Semiconductor Energy Laboratory Co., Ltd. | Data processing system and operation method of data processing system |
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JP5948093B2 (ja) | 2016-07-06 |
US20120229805A1 (en) | 2012-09-13 |
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