KR101063908B1 - 에피택셜 웨이퍼의 제조장치 및 방법 - Google Patents
에피택셜 웨이퍼의 제조장치 및 방법 Download PDFInfo
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- KR101063908B1 KR101063908B1 KR1020090133905A KR20090133905A KR101063908B1 KR 101063908 B1 KR101063908 B1 KR 101063908B1 KR 1020090133905 A KR1020090133905 A KR 1020090133905A KR 20090133905 A KR20090133905 A KR 20090133905A KR 101063908 B1 KR101063908 B1 KR 101063908B1
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- wafer
- wet etching
- silicon
- damage
- etching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02019—Chemical etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02024—Mirror polishing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
Abstract
Description
슬롯 번호 | 에칭 전 두께(㎛) | 에칭 후 두께(㎛) | 델타 두께(㎛) |
1 | 767.013 | 766.020 | 0.993 |
2 | 766.804 | 765.781 | 1.023 |
3 | 768.837 | 767.796 | 1.041 |
4 | 770.535 | 767.494 | 1.041 |
5 | 766.506 | 767.469 | 1.037 |
6 | 768.542 | 767.503 | 1.039 |
7 | 768.325 | 767.299 | 1.026 |
8 | 768.286 | 767.248 | 1.038 |
9 | 768.724 | 767.684 | 1.040 |
10 | 767.955 | 766.933 | 1.022 |
11 | 768.923 | 767.899 | 1.044 |
12 | 768.304 | 767.239 | 1.065 |
13 | 768.656 | 767.584 | 1.072 |
14 | 768.082 | 767.049 | 1.033 |
15 | 768.558 | 767.516 | 1.042 |
16 | 769.202 | 768.149 | 1.053 |
17 | 768.736 | 767.688 | 1.048 |
18 | 768.666 | 767.631 | 1.035 |
19 | 767.697 | 766.659 | 1.038 |
20 | 767.929 | 766.900 | 1.029 |
21 | 768.362 | 767.310 | 1.052 |
22 | 767.950 | 766.915 | 1.035 |
23 | 768.553 | 767.501 | 1.052 |
24 | 767.698 | 766.641 | 1.057 |
평균 | 768.368 | 767.329 | 1.040 |
슬롯 번호 | 에칭 전 LTO 두께(Å) | 에칭 후 LTO 두께(Å) | 델타 두께(Å) |
1 | 3245 | 2726 | 519 |
2 | 3268 | 2747 | 521 |
3 | 3271 | 2748 | 523 |
4 | 3270 | 2736 | 534 |
5 | 3262 | 2742 | 520 |
6 | 3251 | 2729 | 522 |
7 | 3229 | 2715 | 514 |
8 | 3214 | 2701 | 513 |
평균 | 3251 | 2731 | 521 |
Claims (8)
- 웨이퍼의 배면에 저온 산화막을 형성하는 단계;상기 웨이퍼의 전면에 실리콘층을 증착하는 단계;상기 실리콘층이 증착된 웨이퍼 전면을 습식 식각하는 단계; 및상기 웨이퍼를 FP(Final Polishing) 처리하는 단계를 포함하여 이루어지는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 1 항에 있어서,상기 습식 식각하는 단계는, 식각액으로 KOH 또는 NaOH를 사용하여 수행되는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 2 항에 있어서,상기 습식 식각하는 단계는, 상기 식각액에 SC-1을 공급하는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 2 항에 있어서,상기 습식 식각하는 단계는, 상기 식각액에 SC-2를 공급하는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 2 항에 있어서,상기 식각액은 40~50%의 농도를 갖는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 1 항에 있어서,상기 습식 식각하는 단계는, 63~73도(℃)의 온도에서 수행되는 것을 특징으로 하는 웨이퍼 제조방법.
- 제 1 항에 있어서,상기 습식 식각하는 단계는, 180~300 초 동안 수행되는 것을 특징으로 하는 웨이퍼 제조방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090133905A KR101063908B1 (ko) | 2009-12-30 | 2009-12-30 | 에피택셜 웨이퍼의 제조장치 및 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090133905A KR101063908B1 (ko) | 2009-12-30 | 2009-12-30 | 에피택셜 웨이퍼의 제조장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110077353A KR20110077353A (ko) | 2011-07-07 |
KR101063908B1 true KR101063908B1 (ko) | 2011-09-08 |
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KR1020090133905A KR101063908B1 (ko) | 2009-12-30 | 2009-12-30 | 에피택셜 웨이퍼의 제조장치 및 방법 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007119300A (ja) * | 2005-10-28 | 2007-05-17 | Shin Etsu Handotai Co Ltd | エピタキシャルウエーハの製造方法 |
WO2009081720A1 (ja) * | 2007-12-21 | 2009-07-02 | Sumco Corporation | エピタキシャルシリコンウェーハの製造方法 |
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- 2009-12-30 KR KR1020090133905A patent/KR101063908B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007119300A (ja) * | 2005-10-28 | 2007-05-17 | Shin Etsu Handotai Co Ltd | エピタキシャルウエーハの製造方法 |
WO2009081720A1 (ja) * | 2007-12-21 | 2009-07-02 | Sumco Corporation | エピタキシャルシリコンウェーハの製造方法 |
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