公开(公告)号：US20060158474A1

公开(公告)日：2006-07-20

申请号：US10563651

申请日：2004-07-01

申请人： Dirkjan Van Dam ,  Leonardus Van Den Besselaar

发明人： Dirkjan Van Dam ,  Leonardus Van Den Besselaar

IPC分类号： B41J29/38

CPC分类号： G03F9/7084 ,  F04B47/02 ,  G03F7/70791 ,  G03F9/7003 ,  G03F9/7011 ,  G03F9/7019 ,  G03F9/7088 ,  H01L51/56

摘要： A printing machine comprises an X-Y table (50) for moving a substrate (30) with respect to a print head (20). During a printing process, the substrate (30) is moved, whereas the print head (20) is intermittently activated to fire ink droplets. A camera (25) is arranged for providing images of the substrate (30) to a computer which is programmed to recognize patterns. In order for the print head (20) to be able to print a spot at a predetermined position on the substrate (30), an offset between a predetermined and an actual mutual position of the substrate (30) and the print head (20) is measured and compensated for. For the purpose of measuring this offset, a test spot (38) is printed on the substrate (30) and an offset between a predetermined and an actually obtained position of this test spot (38) is measured by means of pattern recognition.

摘要翻译： 印刷机包括用于相对于打印头（20）移动基板（30）的X-Y台（50）。 在印刷过程中，基板（30）被移动，而打印头（20）被间歇地激活以喷射墨滴。 布置相机（25），用于将基板（30）的图像提供给被编程为识别图案的计算机。 为了使打印头（20）能够在基板（30）上的预定位置打印点，基板（30）和打印头（20）的预定和实际相互位置之间的偏移量 被测量和补偿。 为了测量该偏移量，在基板（30）上印刷测试点（38），并通过图案识别来测量该测试点（38）的预定和实际获得的位置之间的偏移。