JP2005533376A - ウエハ上に超清浄なボンディングパッドを保つための方法およびウエハ - Google Patents
ウエハ上に超清浄なボンディングパッドを保つための方法およびウエハ Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
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- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
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- 230000007935 neutral effect Effects 0.000 claims 10
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- 239000008367 deionised water Substances 0.000 claims 1
- 229910021641 deionized water Inorganic materials 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 14
- 239000011241 protective layer Substances 0.000 abstract description 6
- 239000004065 semiconductor Substances 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 87
- 229910021642 ultra pure water Inorganic materials 0.000 description 9
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- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
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- 239000004020 conductor Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Abstract
Description
静電放電保護膜を提供することにある。
本発明の一般的な目的は、切断作業時における純水の必要性を実質的に除去した方法を提供することにある。
Claims (11)
- ダイシングテープにマウントされた、切断される清浄なウエハを準備する工程と、
切断される前記ウエハの表面に中性に硬化した水溶性膜を付着する工程と、
前記水溶性の膜及び前記ウエハを貫いて前記ダイシングテープの中まで部分的に切断する工程と
前記水溶性膜を除去することなく、前記ウエハを切断中、清浄な冷水で該ウエハを冷却する工程と、
前記ウエハを高圧の清浄な脱イオン温水を用いて、個々の切断されたダイの表面及び前記ウエハの切断されたカーフから前記中性の硬化した水溶性膜を除去するためにウエハ洗浄装置で洗浄する工程、及び
前記ダイシングテープにマウントされた前記ウエハから個々のダイを取外す前に前記ウエハを乾燥させる工程とを含む、単体化又はダイシング工程中にシリコンウエハ塵埃及び汚染からウエハボンディングパッドを保護する方法。 - 前記清浄な冷水は、もし中性の硬化した水溶性膜によって保護されていなければ、通常は前記ダイの露出したボンディングパッドと反応する非脱イオン水を含むことを特徴とする請求項1に記載の方法。
- 前記中性の硬化した水溶性膜を付着する工程は、前記ウエハの上面に粘性のある液体を均一に付着させる工程と前記膜を硬化及び乾燥させる工程とを有することを特徴とする請求項1に記載の方法。
- 前記膜を硬化及び乾燥させる工程は、該膜を紫外線(U.V.)又は赤外線(I.R.)で感光させる工程を含むことを特徴とする請求項3に記載の方法。
- 前記ウエハの表面に膜を付着する工程は、粘性のゲル、ペースト又は液体を付着する工程を含むことを特徴とする請求項1に記載の方法。
- ダイに切断されるべき清浄なウエハを第1のダイシングテープ上にマウントする工程と、
中性で硬化性のある水溶性の第1の膜を切断される前記ウエハの上面に付着させる工程と、
冷水中で溶けるのを避けるために前記水溶性の膜を硬化させる工程と、
前記水溶性の膜を貫いて前記ウエハの中まで部分的に切断する工程と、
前記ウエハの塵埃及び前記水溶性の膜を除去するために、前記切断されたウエハをウエハ洗浄装置で洗浄する工程と、
前記洗浄され切断されたウエハを乾燥する工程と、
中性で硬化性のある水溶性の第2の膜を前記ウエハの上面及び前記ウエハのカーフの中に付着させる工程と、
前記中性で硬化性のある水溶性の第2の膜を硬化させ、乾燥する工程と、
前記第2の膜の上部にバックグラインディングテープを付着する工程と、
前記部分的に切断されたウエハの底部から前記ダイシングテープを取り除く工程と、
前記ウエハを極めて清浄な端部を有する個々のダイに分離するために前記ウエハの前記底部の一部分を除去する工程と、
ウエハ塵埃を除去するために、前記切断されたウエハをウエハ洗浄装置中で洗浄する工程と、
前記洗浄され、切断されたウエハを乾燥する工程と、
前記洗浄され切断されたドライウエハを第2のダイシングテープにマウントする工程と、
バリや欠けの無い端部を持つ個々のダイを提供するために、前記ウエハから前記バックグラインディングテープ及び前記中性で硬化性のある水溶性の一つ又は複数の膜を除去する工程を含むことを特徴とする、切断作業によってウエハから分離する際に、ウエハボンディングパッドをシリコンウエハ塵埃及び汚染から保護する方法。 - 前記ウエハの底部の一部分を除去する工程は、エッチング又はバックグラインディング工程を含むことを特徴とする請求項6に記載の方法。
- 前記ウエハの底部の一部分を除去した後に前記洗浄され、切断されたウエハを洗浄する工程は、前記水溶性の一つ又は複数の膜を除去しないように、清浄な冷水で洗浄する工程を含むことを特徴とする請求項6に記載の方法。
- 前記ウエハから、前記中性で硬化性のある水溶性の一つ又は複数の膜を除去する工程は、全ての溶解性の膜及びそこに付着した汚染物を除去するために、前記ウエハを高圧の純水を用いてウエハ洗浄装置で洗浄する工程を含むことを特徴とする請求項6記載の方法。
- 前記水溶性の膜を貫いて前記ウエハの中まで部分的に切断する工程は、
ダイシングソーの刃及び切断されるウエハへ清浄な中性の冷却水の細流をかける工程を更に含むことを特徴とする請求項6に記載の方法。 - 前記清浄な中性の冷却水は清浄な濾過された水道水を含むことを特徴とする請求項10記載の方法。
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US10/193,842 US6582983B1 (en) | 2002-07-12 | 2002-07-12 | Method and wafer for maintaining ultra clean bonding pads on a wafer |
PCT/SG2003/000161 WO2004008528A1 (en) | 2002-07-12 | 2003-07-09 | Method and wafer for maintaining ultra clean bonding pads on a wafer |
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US (1) | US6582983B1 (ja) |
EP (1) | EP1522099A4 (ja) |
JP (1) | JP2005533376A (ja) |
CN (1) | CN1296988C (ja) |
AU (1) | AU2003253566A1 (ja) |
MY (1) | MY138777A (ja) |
RU (1) | RU2004139016A (ja) |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008004598A (ja) * | 2006-06-20 | 2008-01-10 | Sanyo Electric Co Ltd | ダイシング装置,ダイシング方法,半導体装置,及び半導体装置の製造方法 |
JP2011014652A (ja) * | 2009-06-30 | 2011-01-20 | Panasonic Electric Works Co Ltd | 機能性デバイスの製造方法および、それにより製造された機能性デバイスを用いた半導体装置の製造方法 |
JP2013084794A (ja) * | 2011-10-11 | 2013-05-09 | Tdk Corp | チップ部品支持装置及びその製造方法 |
JP2016115800A (ja) * | 2014-12-15 | 2016-06-23 | 株式会社ディスコ | ウエーハの加工方法 |
JP2016136559A (ja) * | 2015-01-23 | 2016-07-28 | 株式会社ディスコ | 被加工物の切削方法 |
JP2016136558A (ja) * | 2015-01-23 | 2016-07-28 | 株式会社ディスコ | 被加工物の切削方法 |
CN107680834A (zh) * | 2017-09-25 | 2018-02-09 | 中国振华集团云科电子有限公司 | 一种芯片电容的优化切割工艺及芯片电容 |
JPWO2016189986A1 (ja) * | 2015-05-25 | 2018-03-15 | リンテック株式会社 | 半導体装置の製造方法 |
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MY138777A (en) | 2009-07-31 |
RU2004139016A (ru) | 2005-07-27 |
EP1522099A4 (en) | 2010-09-15 |
CN1296988C (zh) | 2007-01-24 |
EP1522099A1 (en) | 2005-04-13 |
AU2003253566A1 (en) | 2004-02-02 |
CN1650420A (zh) | 2005-08-03 |
US6582983B1 (en) | 2003-06-24 |
WO2004008528A1 (en) | 2004-01-22 |
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