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EP0278484B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for making a digitalization board

Assignee: Aristo Graphic Systeme GmbH and Co KG
•
Filing: 1988-02-10
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Granted: 1993-08-18
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Expires: 2008-02-10
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Abstract

Abstract In order to make a digitalisation board having two groups of conductor paths (2, 3, 4, 5; 2', 3', 4') which are in each case parallel within the group, the groups running at right angles to one another and being arranged to be coplanar, the conductor paths (2, 3, 4, 5; 2', 3', 4') are produced from a metal layer by etching and are covered with a dielectric material layer (13; 13'). The ends (6, 7, 8, 9; 6', 7', 8') of the conductor paths (2, 3, 4, 5; 2', 3', 4') in this case have the dielectric material removed from them and are connected by printing using a printing ink which is electrically conductive or which can be metallised. <IMAGE>

Inventors

  • 👤 Hans-Joachim Schrodt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 01:00
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/4038; H05K3/4053; H05K3/4069; H05K3/46; H05K3/4644; H05K3/4664; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289; H05K1/09; H05K1/092; H05K1/095

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 200 words
A method for producing a digitising tablet with two groups of conductive tracks (2, 3, 4, 5, 2', 3', 4') each parallel within the group which extend at right-angles to one another and are arranged in coplanar manner, in which the conductive tracks (2, 3, 4, 5, 2', 3', 4') of a group are each produced by etching from a metal layer, in particular copper layer, then a layer of insulating material (13, 13') is applied by leaving free corresponding contact regions (6, 7, 8, 9, 6', 7', 8') and afterwards by means of electrically conductive or metallisable printing inks further conductive structures are provided, characterised in that a coating of insulating material (12; 12') which leaves the conductive tracks (2, 3, 4, 5, 2', 3', 4') free is applied to the surface (1) bearing the conductive tracks (2, 3, 4, 5, 2', 3', 4') of a group, the thickness of which coating is equal to the thickness of the conductive tracks (2, 3, 4, 5, 2', 3', 4'), and that the layer of insulating material (13, 13') is applied to the conductive tracks (2, 3, 4, 5, 2', 3', 4') and to the coating of insulating material (12, 12').
Claim 2
Dependent Claim 23 words
A method according to Claim 1, characterised in that the coating of insulating material (12; 12') is applied in a screen printing process.
Claim 3
Independent Claim 27 words
A method according to one of Claims 1 to 2, characterised in that the layer of insulating material (13; 13') is applied in a screen printing process.
Claim 4
Independent Claim 23 words
A method according to one of Claims 1 to 3, characterised in that the printing ink is printed in a screen printing process.

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