Thick film resistive element, thick film printed circuit board and thick
film hybrid integrated circuit device and their production methods
    63.
    发明授权
    Thick film resistive element, thick film printed circuit board and thick film hybrid integrated circuit device and their production methods 失效
    厚膜电阻元件,厚膜印刷电路板和厚膜混合集成电路器件及其制作方法

    公开(公告)号:US5274352A

    公开(公告)日:1993-12-28

    申请号:US901873

    申请日:1992-06-22

    CPC classification number: H01C1/034 H05K3/28 H05K1/092 H05K1/167 H05K2201/017

    Abstract: A thick film resistive element superior in moisture resistance characteristic is provided, which includes a pair of film-like conductors formed on an insulating substrate, a film-like resistor formed on the substrate so as to be partially laminated on the electrode portions of the pair of conductors thereby covering the surfaces of the electrode portions, and a first covering member formed of a material containing a crystal glass as a main ingredient thereof which covers the other portions of the pair of conductors than said electrode portions. As a result, there does not exist such an area that is covered with a porous amorphous glass film only, so that even if a protection film of an organic resin is not provided, there is no possibility that the moisture in the application environment affects on the conductors to degrade the insulation resistance therebetween. Thus, the use of this thick film resistive element makes it possible to realize a thick film printed circuit board and thick film hybrid integrated circuit device with no need to coat a protection film of an organic resin.

    Abstract translation: 提供了具有优异的耐湿性特性的厚膜电阻元件,其包括形成在绝缘基板上的一对膜状导体,形成在基板上的膜状电阻器,以便部分地层压在该对的电极部分上 的导体,由此覆盖电极部分的表面,以及由包含晶体玻璃作为其主要成分的材料形成的第一覆盖部件,该第一覆盖部件覆盖一对导体的除了所述电极部分之外的其它部分。 结果,不存在仅被多孔非晶玻璃膜覆盖的区域,所以即使没有提供有机树脂的保护膜,也不可能施加环境中的水分影响 导体之间的绝缘电阻降低。 因此,使用这种厚膜电阻元件使得可以实现厚膜印刷电路板和厚膜混合集成电路器件,而不需要涂覆有机树脂的保护膜。

    Method of manufacturing a thick-film circuit arrangement
    65.
    发明授权
    Method of manufacturing a thick-film circuit arrangement 失效
    制造厚膜电路装置的方法

    公开(公告)号:US5047368A

    公开(公告)日:1991-09-10

    申请号:US333161

    申请日:1989-04-03

    Abstract: The invention relates to a method of forming a thick-film circuit arrangement having an electronic circuit which is constructed on a surface (17) of a ceramic substrate plate (3) and which consists of conductor paths (5), resistors, capacitors and components, in particular integrated switching circuits without a housing, formed according to thick-film technique, in this structure has between the electrically conductive structures (5) a sintered, non-conductive paste substantially filling the intermediate spaces between them and both the structures and the interposed pastes are covered by a sintered insulating paste. For concealing the thick-film circuit arrangement from unauthorized access, the following covering construction is carried out:1. the paste in the intermediate spaces fills the same between the electronically active thick-film conductor structures in such a manner that the tops of the electrically active structures and the insulating filling layer (7) formed from an insulating paste and filling the intermediate spaces between them are situated substantially in one plane, andthe insulating paste is provided over the combined conductor/filling layer (11) in a covering and smoothing manner to form at least one insulating first thick-film anti-access layer (13) which, by additional observation-impeding inclusions (dye, particles), impedes an optical recognition of the underlying structures, especially when the first thick-film anti-access layer or layers is or are not succeeded by further anit-access layers.

    Method of forming electrically conductive circuit
    66.
    发明授权
    Method of forming electrically conductive circuit 失效
    形成导电电路的方法

    公开(公告)号:US4694573A

    公开(公告)日:1987-09-22

    申请号:US832716

    申请日:1986-02-10

    Abstract: Disclosed is a method of forming an electrically conductive circuit comprising the steps of: preparing a transferring paper in which an assembly of electrically conductive foil carrying a predetermined pattern and an insulating layer containing glass frit and an overcoat layer consisting of a resin film having good burning property are provided on a transferring paper covered with a paste layer; removing an integral structure of the conductive foil, the insulating layer, and the overcoat layer from the transferring paper; transferring the removed integral structure onto a substrate; and burning the substrate with the integral structure set thereon at a temperature where the glass is soften. According to this method, it is possible to eliminate transformation or damage of a conductive foil where a conductive foil is singly disposed on a substrate.

    Abstract translation: PCT No.PCT / JP85 / 00327 Sec。 371日期1986年2月10日 102(e)日期1986年2月10日PCT提交1985年6月12日PCT公布。 出版物WO86 / 00190 1986年1月3日公开。公开是一种形成导电电路的方法,包括以下步骤:制备转印纸,其中承载预定图案的导电箔的组件和包含玻璃料的绝缘层和覆盖层组成 具有良好燃烧性能的树脂膜设置在被糊层覆盖的转印纸上; 从转印纸上去除导电箔,绝缘层和外涂层的整体结构; 将去除的整体结构转移到基底上; 并且在玻璃被软化的温度下,以设置在其上的整体结构燃烧基板。 根据该方法,可以消除将导电箔单独设置在基板上的导电箔的变形或损坏。

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