ELECTRONIC CIRCUIT BOARD PATTERN CORRECTION DEVICE AND METHOD

• Main Authors: ARAI TAKESHI, NAKASU NOBUAKI, YOSHIMURA KAZUSHI
• Format: Patent
• Language: English
• Published: 28.06.2007
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To quickly and precisely repair the pattern missing defects on a circuit board. SOLUTION: This device is built with a lighting optical system capable of radiating a laser beam in two different wavelengths and uses a mask pattern matching the board to repair in order to make high precision/high speed processing for the circuit pattern. Further, a laser beams with at least two different wavelengths are radiated in the same intensity within the surface on the mask. Further, this mask has a mask mechanism having areas different for each wavelength as to pass one wavelength completely but the other wavelength in a mask pattern shape, thus, this device can apply laser processing matching the mask patterns for each wavelength. COPYRIGHT: (C)2007,JPO&INPIT