| 摘要 |
<p>The invention refers to a method and an apparatus for pattern formation on a printed circuit board, especially resist pattern formation, such as etching resist pattern and soldering resist pattern. If further refers to conductive pattern formation and any other pattern that may be formed on a printed circuit board. A direct printing method and apparatus is used in which a computer generated image information corresponding to a pattern which is to be formed on the printed circuit board substrate (2) is converted into a pattern of electrostatic fields, which selectively transport electrically charged toner particles from a particle source (3) toward a back electrode (12) through a printhead structure (5), whereby by the charged toner particles are deposited in image configuration on the printed circuit board or an intermediate image receiving member caused to move relative to the printhead structure. The invention also refers to a toner container holding toner particles for use in said method and apparatus.</p> |
