The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 1994
Filed:
Sep. 21, 1992
Keita Miyazato, Fukushima, JP;
Nitto Boseki Co., Ltd., Fukushima, JP;
Abstract
The instant invention discloses a process for producing a substrate for use in printed circuit which comprises: a vessel for containing a photo-curable resin; a masking means positioned above and in close proximity to the resin surface; a planar light for irradiating through the mask a thin layer of the photo-curable resin, means for moving the thin-layered cured product in the vertical direction, means for coating additional uncured resin on the cured product and irradiating the same to form a newly formed thin-layered cured product thereon, and means for successively coating and forming additional thin-layers of cured products. The second aspect of this invention relates to a substrate for use in printed circuit boards produced by the above-mentioned process and apparatus.