Patent ID: 9414499
Filing Date: 2016-08-09
CPC Classification: B23K,H05K

Claim Text:
1. A method for partial detachment, using a laser beam, of a defined area of a conductive layer supported by an underlying substrate, the method comprising: forming a conductor track, completely within the defined area, with a defined path from a portion of the conductive layer supported by the underlying substrate, the path defining main axes (X, Y); providing a plurality of linear recesses, by a laser directly applied to the conductive layer, extending, in a direction that is not parallel to either of the main axes (X, Y), and excluding respective end regions of the plurality of linear recesses, in a direction that is aligned at an acute angle with respect to edges of the conductor track, from at least one of an edge of the defined area or an edge of the conductor track to at least one of another edge of the defined area or another edge of the conductor track, heating a portion of a first of the zones to be removed using laser radiation provided by a laser beam until adhesion of the conductive layer to the underlying substrate is substantially reduced and the portion can be detached in a surface-wide manner from the underlying substrate under external influences, wherein laser-beam parameters of the laser beam providing the laser radiation are set such that the conductive layer can be detached without affecting the underlying substrate.