KR100896736B1 - 이온 주입기를 위한 공정중 웨이퍼 전하 모니터 및 제어시스템 - Google Patents
이온 주입기를 위한 공정중 웨이퍼 전하 모니터 및 제어시스템 Download PDFInfo
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- KR100896736B1 KR100896736B1 KR1020037008512A KR20037008512A KR100896736B1 KR 100896736 B1 KR100896736 B1 KR 100896736B1 KR 1020037008512 A KR1020037008512 A KR 1020037008512A KR 20037008512 A KR20037008512 A KR 20037008512A KR 100896736 B1 KR100896736 B1 KR 100896736B1
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 235000012431 wafers Nutrition 0.000 claims abstract description 109
- 238000010884 ion-beam technique Methods 0.000 claims abstract description 63
- 230000005591 charge neutralization Effects 0.000 claims abstract description 20
- 238000002513 implantation Methods 0.000 claims abstract description 6
- 238000009825 accumulation Methods 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 238000005468 ion implantation Methods 0.000 claims description 10
- 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
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 25
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- 230000000694 effects Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 241001522301 Apogonichthyoides nigripinnis Species 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 206010057362 Underdose Diseases 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/36—Gas-filled discharge tubes for cleaning surfaces while plating with ions of materials introduced into the discharge, e.g. introduced by evaporation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/304—Controlling tubes by information coming from the objects or from the beam, e.g. correction signals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/30—Electron or ion beam tubes for processing objects
- H01J2237/317—Processing objects on a microscale
- H01J2237/31701—Ion implantation
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims (19)
- 삭제
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- 이온 주입 시스템(10)에 있어서:(i) 일반적으로 (+)로 하전된 이온빔(18)을 출력하는 소스(12);(ii) 상기 이온빔의 (+) 순전하를 중성화시키기 위하여 저 에너지 전자를 공급시키는 전하 중성화 시스템(33); 및(iii) 공정중 전하 모니터 및 제어 시스템(32)을 포함하는데, 상기 공정중 전하 모니터 및 제어 시스템은, (a) 이온빔(18)에 의한 주입을 위하여 다수의 웨이퍼(W)가 배치될 수 있는 웨이퍼 지지체(22)로서, 상기 지치체는 상기 웨이퍼의 표면과 전기적 도전성이 상이한 인접 웨이퍼의 중간에 배치된 부분을 가지며, 상기 웨이퍼 지지체(22)는 중심(31)을 부가적으로 갖는데, 상기 중심으로부터 상기 다수의 웨이퍼 각각이 실질적으로 등거리로 되며, 상기 웨이퍼 지지체에는 상기 중심(31)으로부터 실질적으로 등거리로 배치되는 제1 및 제2 개구(64, 66)가 부가적으로 제공되는, 상기 웨이퍼 지지체; (b) 상기 제1 및 제2 개구(64, 66) 각각을 통과하는 이온빔(18a, 18b)의 제1 및 제2 부분을 수신하고 수신된 이온빔 전류 량을 각각 나타내는 제1 및 제2 출력 신호(44, 42)를 출력하는 제1 및 제2 전하 모니터(40, 38) 및; (c) 상기 제1 및 제2 출력 신호(44, 42)를 비교하여 제1 및 제2 전하 모니터(40, 38)에 의해 수신되는 이온빔 전류에서의 차이를 나타내는 제3 출력 신호(48)를 출력하는 비교기(46)를 포함하는데, 상기 제3 출력 신호(48)는 전하 중성화 시스템(33)으로의 입력으로서 사용되어, 발생된 저 에너지 전자의 공급을 제어하는, 이온 주입 시스템.
- 제 9 항에 있어서,상기 제1 개구(64)는 상기 제2 개구(66)보다 웨이퍼에 근접하여 위치되는 것을 특징으로 하는 이온 주입 시스템.
- 제 9 항에 있어서,상기 제1 개구(64) 및 상기 제2 개구(66) 각각은 웨이퍼(W)로부터 실질적으로 등거리로 위치되는 것을 특징으로 하는 이온 주입 시스템.
- 제 9 항에 있어서,상기 웨이퍼 지지체(22)는 디스크가 놓이는 평면에 수직한 중심(31)을 통과하는 축에 대해서 회전하는 회전 디스크인 것을 특징으로 하는 이온 주입 시스템.
- 제 12 항에 있어서,상기 디스크(22)는 알루미늄으로 구성되며, 주입될 상기 웨이퍼(W)는 상부에 절연층을 갖는 것을 특징으로 하는 이온 주입 시스템.
- 제 12 항에 있어서,상기 디스크(22)는 실리콘-코팅되는 것을 특징으로 하는 이온 주입 시스템.
- 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법에 있어서:(i) 이온 소스(12)를 사용하여 일반적으로 (+)로 하전된 이온빔(18)을 제공하는 단계;(ii) 상기 이온빔의 (+) 순전하를 중성화시키기 위하여 저 에너지 전자를 공급시킴으로써, 주입되는 웨이퍼의 표면으로 운반될 때, 일반적으로 (+)로 하전된 이온빔을 중성화시키는 전하 중성화 시스템(33)을 제공하는 단계;(iii) 회전 지지체(22)의 중심(31)의 주변에 대해서 그리고 상기 중심으로부터 등거리로 다수의 웨이퍼를 배치하는 단계로서, 상기 지지체(22)는 상기 웨이퍼의 표면과 전기적 도전성이 상이한 인접 웨이퍼 중간에 배치되는 부분을 가지며, 상기 회전 지지체에는 상기 중심(31)으로부터 실질적으로 등거리로 배치되는 제1 및 제2 개구(64, 66)가 제공되는, 배치 단계;(iv) 상기 제1 및 제2 개구(64, 66)를 통과하는 이온빔(18a, 18b)의 제1 및 제2 부분을 모니터하는 단계;(v) 상기 이온빔의 제1 및 제2 부분에서 검출되는 이온빔 전류량을 각각 나타내는 제1 및 제2 출력 신호(44, 42)를 출력하는 단계;(vi) 상기 제1 및 제2 출력 신호(44, 42)를 비교하여, 상기 제1 및 제2 출력 신호 간의 차이를 나타내는 제3 출력 신호(48)를 출력하는 단계; 및(vii) 상기 제3 출력 신호(48)를 상기 전하 중성화 시스템(33)으로 입력하여, 발생된 저 에너지 전자의 공급을 제어하는 단계를 포함하는 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법.
- 제 15 항에 있어서,상기 회전 지지체(22)는 알루미늄으로 구성되며, 주입되는 상기 웨이퍼(W)는 상부에 절연층을 갖는 것을 특징으로 하는 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법.
- 제 15 항에 있어서,상기 회전 지지체(22)는 실리콘-코팅되는 것을 특징으로 하는 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법.
- 제 15 항에 있어서,상기 제1 개구(64)는 상기 제2 개구(66) 보다 웨이퍼에 근접하여 위치되는 것을 특징으로 하는 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법.
- 제 15 항에 있어서,상기 제1 개구(64) 및 상기 제2 개구(66) 각각은 웨이퍼(W)로부터 실질적으로 등거리로 위치되는 것을 특징으로 하는 주입되는 웨이퍼상의 전하 누적을 중성화시키는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/748,735 US6600163B2 (en) | 2000-12-22 | 2000-12-22 | In-process wafer charge monitor and control system for ion implanter |
US09/748,735 | 2000-12-22 | ||
PCT/GB2001/005625 WO2002052612A2 (en) | 2000-12-22 | 2001-12-18 | In-process wafer charge monitor and control system for ion implanter |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030064868A KR20030064868A (ko) | 2003-08-02 |
KR100896736B1 true KR100896736B1 (ko) | 2009-05-11 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020037008512A Expired - Lifetime KR100896736B1 (ko) | 2000-12-22 | 2001-12-18 | 이온 주입기를 위한 공정중 웨이퍼 전하 모니터 및 제어시스템 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6600163B2 (ko) |
EP (1) | EP1344242A2 (ko) |
JP (1) | JP3921594B2 (ko) |
KR (1) | KR100896736B1 (ko) |
CN (1) | CN100474494C (ko) |
AU (1) | AU2002222267A1 (ko) |
TW (1) | TW535247B (ko) |
WO (1) | WO2002052612A2 (ko) |
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2000
- 2000-12-22 US US09/748,735 patent/US6600163B2/en not_active Expired - Lifetime
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2001
- 2001-12-17 TW TW090131199A patent/TW535247B/zh not_active IP Right Cessation
- 2001-12-18 AU AU2002222267A patent/AU2002222267A1/en not_active Abandoned
- 2001-12-18 WO PCT/GB2001/005625 patent/WO2002052612A2/en active Application Filing
- 2001-12-18 KR KR1020037008512A patent/KR100896736B1/ko not_active Expired - Lifetime
- 2001-12-18 CN CNB018211925A patent/CN100474494C/zh not_active Expired - Lifetime
- 2001-12-18 EP EP01272081A patent/EP1344242A2/en not_active Withdrawn
- 2001-12-18 JP JP2002553219A patent/JP3921594B2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1027566A (ja) * | 1996-07-10 | 1998-01-27 | Nissin Electric Co Ltd | 基板保持装置 |
EP0964426A2 (en) * | 1998-06-11 | 1999-12-15 | Eaton Corporation | Ion dosage measurement apparatus for an ion beam implanter and method |
Also Published As
Publication number | Publication date |
---|---|
US20020079465A1 (en) | 2002-06-27 |
WO2002052612A3 (en) | 2002-10-17 |
CN1484848A (zh) | 2004-03-24 |
JP2004516639A (ja) | 2004-06-03 |
AU2002222267A1 (en) | 2002-07-08 |
WO2002052612A2 (en) | 2002-07-04 |
EP1344242A2 (en) | 2003-09-17 |
KR20030064868A (ko) | 2003-08-02 |
TW535247B (en) | 2003-06-01 |
US6600163B2 (en) | 2003-07-29 |
JP3921594B2 (ja) | 2007-05-30 |
CN100474494C (zh) | 2009-04-01 |
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