APPARATUS AND METHOD FOR CONTROLLING REGISTRATION OF PRINT STEPS IN A CONTINUOUS PROCESS FOR THE MANUFACTURE OF ELECTROCHEMICAL SENSORS

摘要

In a method according to the present invention, the method includes the printing of a first registration mark at the first print station (e.g. the print station where the carbon electrodes are deposited), the printing of a second registration mark over the first registration mark during printing of the next (e.g. insulation) layer. The second registration mark, being slight ly larger than the first registration mark, obliterates the first registration mark and causes registration of the subsequent layers (e.g. enzyme layers) t o be triggered slightly earlier. In accordance with one embodiment of the present invention, a two layered mark is used, the second layer being larger than the first so as to "move" the mark to take account of the variation in screen size for the second (e.g. insulation) and subsequent (e.g. enzyme) layers.