WO2001088954A3 - Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing - Google Patents

Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing Download PDF

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Publication number
WO2001088954A3
WO2001088954A3 PCT/US2001/012578 US0112578W WO0188954A3 WO 2001088954 A3 WO2001088954 A3 WO 2001088954A3 US 0112578 W US0112578 W US 0112578W WO 0188954 A3 WO0188954 A3 WO 0188954A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrical contact
wafer
electropolishing
full
wafer surface
Prior art date
Application number
PCT/US2001/012578
Other languages
French (fr)
Other versions
WO2001088954A2 (en
Inventor
Jalal Ashjaee
Boguslaw A Nagorski
Bulent M Basol
Homayoun Talieh
Cyprian Uzoh
Original Assignee
Nu Tool Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nu Tool Inc filed Critical Nu Tool Inc
Priority to AU2001253635A priority Critical patent/AU2001253635A1/en
Publication of WO2001088954A2 publication Critical patent/WO2001088954A2/en
Publication of WO2001088954A3 publication Critical patent/WO2001088954A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/005—Contacting devices
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/12—Semiconductors
    • C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
    • 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
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
    • H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
    • H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
    • H01L21/2885—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition using an external electrical current, i.e. electro-deposition

Abstract

Deposition of conductive material on or removal of conductive material from a wafer (16) frontal side (22) of a semiconductor wafer (16) is performed by providing an anode (9) having an anode (9) area which is to face the wafer (16) frontal side (22), and electrically connecting (9d) the wafer (16) frontal side (22) with at least one electrical contact (9d), outside of the anode area, by pushing the electrical contact (9d) and the wafer (16) is moved with respect to the anode (9) and the electrical contact (9d). Full-face electroplating or electropolishing over the wafer frontal side (22) surface, in its entirety, is thus permitted.
PCT/US2001/012578 2000-05-12 2001-04-18 Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing WO2001088954A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001253635A AU2001253635A1 (en) 2000-05-12 2001-04-18 Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US20394400P 2000-05-12 2000-05-12
US60/203,944 2000-05-12
US09/735,546 2000-12-14
US09/735,546 US6482307B2 (en) 2000-05-12 2000-12-14 Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing

Publications (2)

Publication Number Publication Date
WO2001088954A2 WO2001088954A2 (en) 2001-11-22
WO2001088954A3 true WO2001088954A3 (en) 2002-03-28

Family

ID=26899046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/012578 WO2001088954A2 (en) 2000-05-12 2001-04-18 Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing

Country Status (4)

Country Link
US (1) US6482307B2 (en)
AU (1) AU2001253635A1 (en)
TW (1) TW504796B (en)
WO (1) WO2001088954A2 (en)

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Also Published As

Publication number Publication date
AU2001253635A1 (en) 2001-11-26
US20010035354A1 (en) 2001-11-01
TW504796B (en) 2002-10-01
US6482307B2 (en) 2002-11-19
WO2001088954A2 (en) 2001-11-22

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