Adtec Engineering Co., Ltd.

Other

Katsuya Sangu

Katsumi Momose

Ryoichi Ida

Wataru Nakagawa

Michitomo Koda

The Xray irradiation deviceissues Xrays to board markand projects the image of the board markon the fluorescence screen, the fluorescence faceof which visibly displays the image of the board markthat can be captured by the CCD camera. The CCD cameraimages the board markand the mask markdepicted on the photo maskoverlapping together. The boardand the photo maskare aligned by exposure stageso as to the board markand the mask markcoincide.

Positioning apparatus used in a process for producing multi-layered printed circuit board and method of using the same

A marking apparatus for forming alignment marks, which improves the alignment accuracy of each layer in the production of multi-layered printed circuit boards. An X-ray generator irradiates X-rays at a standard mark in a core board of a board , and projects the image of the standard mark on a fluorescence screen . The image is captured by a visible light CCD camera , thereby the position of the standard mark is detected. Using the detected position of the standard mark as an alignment reference, the apparatus irradiates ultra-violet rays at dry film resist layers via mirrors and , and imprints the marks emerged on photo masks and on the dry film resist layers , respectively.

Marking apparatus used in a process for producing multi-layered printed circuit board

The invention is to provide an aligner which may produce the printed circuit works having no defects due to the incomplete alignment of the film-mask and the work, wherein the film-mask F having aligning marks,and the work K having aligning marks,are closely contacted with each other, and then the aligned conditions of the aligning marks,and,are detected, if the aligned conditions are detected to be out of the range of a predetermined tolerance, the close contact of the film-mask F and the work K is canceled, and the same aligning operation is repeated until the aligned conditions are detected to be within the range of a predetermined tolerance, so that the products of inferior quality may be prevented from being produced due to the incomplete alignment.

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Tokyo, Japan

Katsuya Sangu