Global patent index - EP 1002647 A3

EP 1002647 A3 2001-02-21 - Method and article for electroforming process for an ink jet nozzle plate

Title (en)

Method and article for electroforming process for an ink jet nozzle plate

Title (de)

Verfahren und Vorrichtung zur Elektroformung für eine Tintenstrahldüsenplatte

Title (fr)

Procédé et dispositif d'électroformage pour plaque à orifices à jet d'encre

Publication

EP 1002647 A3 (EN)

Application

EP 99203680 A

Priority

US 19327698 A

Abstract (en)

[origin: EP1002647A2] A method is provided for manufacturing a nozzle plate (75) that includes the steps of providing a film (3) over a substrate (1), and forming a plurality of relief patterns (30) in the film, which may be either circular holes extending completely through the film, or disk-shaped "islands" of the film over the substrate. A post structure (34) is then provided on a top center portion of the relief patterns, each of which has a width (D1) less than the width of the pattern and a height (H1) above the film no greater than the height of the pattern. The combination of substrate, film, relief patterns, and posts form a mandrel (70) over which metal may be electrodeposited until a metal layer (72) is formed having openings with a width (76) defined by the width of the post structures. In the final step of the method, the metal layer is separated from the mandrel, resulting in a nozzle plate having precisely and uniformly dimensioned nozzles which may be used to direct an ink jet onto a printing medium. <IMAGE>

IPC 1-7 (main, further and additional classification)

B41J 2/16

IPC 8 full level (invention and additional information)

B41J 2/135 (2006.01); B41J 2/16 (2006.01)

CPC (invention and additional information)

B41J 2/1625 (2013.01); B41J 2/162 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1002647 A2 20000524; EP 1002647 A3 20010221; JP 2000168093 A 20000620

INPADOC legal status

2002-07-03 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010822

2002-02-21 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2001-11-14 [AKX] PAYMENT OF DESIGNATION FEES

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2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

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- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-02-21 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-05-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI