JP2002513445A - 導電材料内の構造の異方性エッチング方法 - Google Patents
導電材料内の構造の異方性エッチング方法Info
- Publication number
- JP2002513445A JP2002513445A JP51257498A JP51257498A JP2002513445A JP 2002513445 A JP2002513445 A JP 2002513445A JP 51257498 A JP51257498 A JP 51257498A JP 51257498 A JP51257498 A JP 51257498A JP 2002513445 A JP2002513445 A JP 2002513445A
- Authority
- JP
- Japan
- Prior art keywords
- etching
- etchant
- substance
- etched
- electric field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
- H05K3/07—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process being removed electrolytically
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 下記段階を特徴とする、エッチングされるべき導電性物質をエッチング する方法。 最大で20mMの濃度でエッチング剤を含む希釈エッチング溶液の上記エッ チング剤と上記物質とを接触させる段階、及び 上記物質に隣接する上記エッチング剤に電界をかける段階。 2. 濃縮溶液における前記エッチング剤は電界のない状態で前記物質をエッ チング可能であることを特徴とする、請求項1に記載の方法。 3. 下記段階を特徴とする、濃縮溶液の状態でエッチングされるべき導電性 物質内の構造の等方性エッチングに使用可能なエッチング剤により上記物質内の 構造の異方性エッチング方法。 構造の等方性エッチングには使用不能な程度に希釈された溶液内のエッチン グ剤と上記物質とを接触させる段階、及び 上記物質内の上記構造の異方性エッチングが達成される程度の電界を上記物 質に隣接する上記エッチング剤にかける段階。 4. 希釈された状態で、無電界状態において前記物質をエッチングする前記 エッチング剤の能力は最大5nm/s、好適には最大3nm/sであることを特 徴とする請求項1ないし3の一に記載の方法。 5. 前記電界の強度は、希釈された状態の前記エッチング剤のエッチング速 度を好適には無電界状態におけるものの2倍、さらに好適には少なくとも10倍 とするごときものであることを特徴とする、請求項1ないし4の一に記載の方法 。 6. 希釈された状態の前記エッチング剤の濃度は最大で100mM、好適に は最大で50mM、さらに好適には最大で10mM未満であることを特徴とする 、請求項1ないし5の一に記載の方法。 7. 前記エッチング剤は、前記物質とエッチング反応を行う能力を有するイ オン性物質であることを特徴とする、請求項1ないし6の一に記載の方法。 8. 前記エッチング剤に電界をかける段階は、電極を上記エッチング剤と接 触させる段階と、上記電極と上記物質との間に電圧を加える段階とを含むことを 特徴とする、請求項1ないし7の一に記載の方法。 9. 前記電極は、前記エッチングされるべき表面に対し最大で3cm、好適 には最大1cm、さらに好適には最大1mmの距離をもって配置されることを特 徴とする、請求項8の方法。 10. 前記電極と前記物質との間に加えられる電圧は少なくとも0.5V、 好適には少なくとも1.5Vであり、最大で1V,好適には5V、さらに好適に は最大3Vであることを特徴とする、請求項8または9に記載の方法。 11. 前記電極はエッチングされるべき前記導電性物質に向かうテーパ部分 を有し、上記物質から最大で10nmの距離のところに配置されることを特徴と する、請求項8ないし10の一に記載の方法。 12. 複数の第一期間においてエッチングが行われ、上記第一期間に前記電 界が変化するごとく成ったことを特徴とする、請求項1ないし11の一に記載の エッチング方法。 13. 前記第一期間の前記電界は、第二期間中逆方向とされることを特徴と する、請求項12のエッチング方法。 14. 前記第二期間中にメッキが行われて、エッチングされるべき物質が戻 されることを特徴とする請求項13の方法。 15. 前記第一期間の、前記エッチング剤に電界が作用しない第三期間にお いてエッチングされた深さの測定が行われることを特徴とする、請求項12ない し14の一に記載のエッチング方法。 16. 前記第一期間はそれらの間の時間インターバル程度であって、最大2 00ms、好適には最大100msであり、少なくとも10ms、好適には少な くとも50msであることを特徴とする、請求項12ないし15の一に記載のエ ッチング方法。 17. 希釈溶液としてのエッチング剤を含み、上記エッチング剤の濃度は最 大200mM、好適には最大100mM、さらに好適には最大20mMであるこ とを特徴とするエッチング液。 18. 50ミクロン以下の構造を形成するための、請求項17記載のエッチ ング液の使用。 19. 請求項1ないし16の一に記載の方法を実施するための装置。 20 下記段階を特徴とする、導電性物質をメッキする方法。 最大200mMの濃度のメッキ剤を含む希釈溶液の上記メッキ剤と上記導 電性物質を接触させる段階、及び 上記導電性物質に隣接する上記メッキ剤に電界を掛ける段階。 21. 下記段階を特徴とする、濃縮溶液状態においてメッキされるべき導電 性物質の構造の等方性メッキに使用可能なメッキ剤により上記物質上に上記構造 をメッキする方法。 希釈されて、構造を等方性メッキすることに使用不能である溶液内のメッ キ剤と上記物質とを接触させる段階、及び 上記メッキされるべき物質の異方性メッキが上記物質の上記構造を形成する に適したメッキ速度で達成される程度の電界を上記物質に隣接する上記メッキ剤 にかける段階。 22. 複数の第二期間においてメッキが生じ、それら第二期間の複数の第一 期間においてエッチングが生じることを特徴とする請求項20または21記載の 方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2513896P | 1996-09-06 | 1996-09-06 | |
US9603260-2 | 1996-09-06 | ||
SE9603260A SE508155C2 (sv) | 1996-09-06 | 1996-09-06 | Förfarande för etsning av små strukturer |
US60/025,138 | 1996-09-06 | ||
PCT/SE1997/001480 WO1998010121A1 (en) | 1996-09-06 | 1997-09-05 | Method for anisotropic etching of structures in conducting materials |
Publications (1)
Publication Number | Publication Date |
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JP2002513445A true JP2002513445A (ja) | 2002-05-08 |
Family
ID=26662742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51257498A Pending JP2002513445A (ja) | 1996-09-06 | 1997-09-05 | 導電材料内の構造の異方性エッチング方法 |
Country Status (8)
Country | Link |
---|---|
US (2) | US6245213B1 (ja) |
EP (1) | EP0938597B1 (ja) |
JP (1) | JP2002513445A (ja) |
AT (1) | ATE247724T1 (ja) |
AU (1) | AU4141697A (ja) |
CA (1) | CA2264908C (ja) |
DE (2) | DE69724269T2 (ja) |
WO (1) | WO1998010121A1 (ja) |
Cited By (3)
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JP2006257553A (ja) * | 2005-03-15 | 2006-09-28 | Komag Inc | 電気化学エッチング |
JP2006283189A (ja) * | 2005-03-15 | 2006-10-19 | Komag Inc | 電気化学エッチング |
KR101680192B1 (ko) | 2013-10-04 | 2016-11-28 | 인벤사스 코포레이션 | 저 비용 기판을 제조하기 위한 방법 |
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-
1997
- 1997-09-05 CA CA002264908A patent/CA2264908C/en not_active Expired - Fee Related
- 1997-09-05 DE DE69724269T patent/DE69724269T2/de not_active Expired - Lifetime
- 1997-09-05 EP EP97939297A patent/EP0938597B1/en not_active Expired - Lifetime
- 1997-09-05 AU AU41416/97A patent/AU4141697A/en not_active Abandoned
- 1997-09-05 DE DE0938597T patent/DE938597T1/de active Pending
- 1997-09-05 AT AT97939297T patent/ATE247724T1/de not_active IP Right Cessation
- 1997-09-05 JP JP51257498A patent/JP2002513445A/ja active Pending
- 1997-09-05 WO PCT/SE1997/001480 patent/WO1998010121A1/en active IP Right Grant
-
1999
- 1999-03-05 US US09/262,740 patent/US6245213B1/en not_active Expired - Lifetime
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2001
- 2001-03-01 US US09/795,124 patent/US20010023829A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006257553A (ja) * | 2005-03-15 | 2006-09-28 | Komag Inc | 電気化学エッチング |
JP2006283189A (ja) * | 2005-03-15 | 2006-10-19 | Komag Inc | 電気化学エッチング |
KR101680192B1 (ko) | 2013-10-04 | 2016-11-28 | 인벤사스 코포레이션 | 저 비용 기판을 제조하기 위한 방법 |
Also Published As
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DE69724269D1 (de) | 2003-09-25 |
CA2264908A1 (en) | 1998-03-12 |
CA2264908C (en) | 2006-04-25 |
WO1998010121A1 (en) | 1998-03-12 |
AU4141697A (en) | 1998-03-26 |
ATE247724T1 (de) | 2003-09-15 |
DE69724269T2 (de) | 2004-06-09 |
DE938597T1 (de) | 2000-03-09 |
US20010023829A1 (en) | 2001-09-27 |
EP0938597B1 (en) | 2003-08-20 |
US6245213B1 (en) | 2001-06-12 |
EP0938597A1 (en) | 1999-09-01 |
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