| 摘要 |
PURPOSE:To enhance the pattern precision while cutting down the manufacturing time by a method wherein a pen plotter is fitted with a metal screen frame; a router is used as a pen for the pen plotter; a circuit is written by CAD/CAM signals; and the screen frame to be used is manufactured by an etching process. CONSTITUTION:A pen plotter is fitted with a metal screen frame while a router is used as the pen for the pen plotter. Next, a circuit is written by CAD/CAM signals to manufacture the printable screen frame by etching process. Then, the screen frame this manufactured is used while a rotary type, XY axis end semi-fixed pen plotter is preferable. Besides, the pressurization of around 6Kg/cm<2> is recommended to well discharge paste in relatively high viscosity. Furthermore, a cartridge with agitating capacity is preferable. Through these procedures, the title printed circuit comprising an alumina circuit substrate in thickness of 1mm with a circuit formed of conductive paste can be manufactured by the application of such a screen frame. |
