Process for manufacturing a multi-layer circuit board
    12.
    发明授权
    Process for manufacturing a multi-layer circuit board 失效
    制造多层电路板的工艺

    公开(公告)号:US06391210B2

    公开(公告)日:2002-05-21

    申请号:US09901848

    申请日:2001-07-09

    IPC分类号: H01B1300

    摘要: A circuit board having a structure including a permanent photoimageable dielectric material suitable for fabrication of vias both by laser ablation, plasma ablation, or mechanical drilling techniques and by photoimaging techniques. A process is also disclosed for the manufacture of a multi-level circuit on a substrate having a first-level circuitry pattern on at least one side. The process comprises applying a permanent photoimageable dielectric over the first-level circuitry pattern; exposing the permanent photoimageable dielectric to radiation; laminating a conductive metal layer to the dielectric; making holes in the conductive metal layer and dielectric by mechanical drilling or by laser or plasma ablation; and making a second-level circuitry pattern and filling the holes with a conductive material to electrically connect the first and second layers of circuitry. A further process is claimed for designing a multi-level circuit board product comprising making a prototype having the above structure in which the holes are manufactured by mechanical drilling or by laser or plasma ablation, evaluating the prototype, and then manufacturing a commercial circuit board having essentially the same structure and materials of construction as the prototype, but wherein the holes are manufactured by photoimaging techniques.

    摘要翻译: 一种电路板,其结构包括适用于通过激光烧蚀,等离子体消融或机械钻孔技术制造通孔的永久可光成像介电材料,以及通过光成像技术。 还公开了一种用于在至少一侧具有第一级电路图案的衬底上制造多电平电路的工艺。 该过程包括在第一级电路图案上施加永久可光成像电介质; 将永久可光成像电介质暴露于辐射; 将导电金属层层叠到电介质上; 通过机械钻孔或通过激光或等离子体消融在导电金属层和电介质中形成孔; 以及制作二级电路图案,并用导电材料填充所述孔,以电连接所述第一和第二层电路。 要求设计多级电路板产品的另一方法包括制造具有上述结构的原型,其中通过机械钻孔或通过激光或等离子体烧蚀制造孔,评估原型,然后制造商业电路板,其具有 基本上与原型相同的结构和结构材料,但是其中孔通过光成像技术制造。

    Method for photographically improving the resolution of screen printed
photopolymer images
    14.
    发明授权
    Method for photographically improving the resolution of screen printed photopolymer images 失效
    用于照相提高丝网印刷光聚合物图像分辨率的方法

    公开(公告)号:US4610941A

    公开(公告)日:1986-09-09

    申请号:US713550

    申请日:1985-03-19

    摘要: A process is described for improving the quality of images which have been formed by screen printing a liquid photo curable photopolymer. Images formed by screen printing, especially heavy coatings such as solder masks on printed wiring boards, inherently have indistinct boundaries, and may have feathered edges and photopolymer smears. These indistinct boundaries are removed and the resolution improved by a process which utilizes the oxygen inhibition effect characteristic of selected photopolymers. Thus, a screen printed image can be 0.001 inches thick at the center of a line, tapering off to 0.0001 inch thick smears, and these smears may be eliminated by irradiating the entire image with a moderate amount light energy, which cures the thick image portion and leaves a liquid boundary layer on the order of 0.0001 inch thick due to the oxygen effect. When washed with a mild solvent the liquid layer is removed, including the smears, leaving the thick image portion undisturbed. In a preferred embodiment a phototransparency is interposed over and out of contact with the images and then irradiated with non-collimated UV light so as to harden the thicker image sections while indistinct boundary areas are shielded by opaque phototransparency areas. Light undercutting due to the use of non-collimated light does not polymerize the smears because of the oxygen-inhibition effect and the thinness of the smears, and thus only the undersirable smears will be inhibited and left in the liquid state for removal to improve the resolution.

    摘要翻译: 描述了一种用于提高通过丝网印刷液体光固化光聚合物形成的图像质量的方法。 通过丝网印刷形成的图像,特别是印刷线路板上的重涂层,例如焊接掩模,固有地具有不清楚的边界,并且可能具有羽化边缘和光聚合物涂片。 除去这些不清楚的边界,并且通过利用选择的光聚合物的氧抑制作用特征的方法改进分辨率。 因此,丝网印刷图像在线的中心可以为0.001英寸厚,逐渐变细到0.0001英寸厚的涂片,并且可以通过用适度的光能照射整个图像来消除这些涂片,这固化了厚图像部分 并且由于氧气效应而留下厚度为0.0001英寸的液体边界层。 当用温和的溶剂洗涤时,除去液体层,包括涂片,使厚的图像部分不受干扰。 在一个优选实施例中,将光透明度置于图像上并与图像接触之后,然后用非准直的UV光照射,以便使不透明的边界区域被不透明的透光区域屏蔽,从而使较厚的图像部分变硬。 由于使用非平行光而引起的光底切不会由于阻氧效果和涂片的薄度而聚合涂片,因此只有不合需要的污迹将被抑制并留在液态以除去以改善 解析度。

    Patterning a thick film paste in surface features
    16.
    发明授权
    Patterning a thick film paste in surface features 失效
    在表面特征中形成厚膜糊

    公开(公告)号:US08298034B2

    公开(公告)日:2012-10-30

    申请号:US12809687

    申请日:2008-12-19

    IPC分类号: H01J9/12

    摘要: This invention relates to a method for the fabrication of electrical and electronic devices using a photoresist deposited in pre-existing through holes in a device structure and a thick film paste, and to the devices made by such method. The method allows thick film paste deposits in the corners of the holes. This invention also relates to devices made with thick film pastes that are patterned using a diffusion layer made from residual photoresist deposits in a hole.

    摘要翻译: 本发明涉及使用沉积在器件结构中的预先存在的通孔中的光致抗蚀剂和厚膜糊来制造电气和电子器件的方法以及由这种方法制造的器件。 该方法允许厚膜浆料沉积在孔的角部。 本发明还涉及使用由在孔中残留的光致抗蚀剂沉积物制成的扩散层进行图案化的厚膜糊制成的装置。

    Process for making circuit board or lead frame
    17.
    发明申请
    Process for making circuit board or lead frame 审中-公开
    制造电路板或引线框架的工艺

    公开(公告)号:US20050124091A1

    公开(公告)日:2005-06-09

    申请号:US10978521

    申请日:2004-11-02

    摘要: A process for forming a metal pattern comprising the following steps of: (a) half-etching a metal plate from one or respective sides thereof by means of first masking which is positioned on one or respective surfaces of the metal plate; (b) applying positive liquid resist on the half-etched metal plate from one or respective sides of the first masking; (c) exposing the positive liquid resist with light from one or respective sides of the first masking; (d) developing the positive liquid resist in such a manner that unexposed positive liquid resist located under the first masking is protected and exposed, uncured liquid resist is removed; (e) half-etching again the metal plate from one or respective sides thereof by means of second masking composed of the first masking and the protected positive liquid resist; (f) repeating the steps (b) to (e) until a metal pattern is obtained from the metal plate; and (g) removing the first masking, and the second or subsequent masking of the unexposed positive liquid resist, from the metal plate.

    摘要翻译: 一种用于形成金属图案的方法,包括以下步骤:(a)通过位于金属板的一个或相应表面上的第一掩模从其一侧或两侧半蚀刻金属板; (b)从第一掩模的一个或相应的两侧向半蚀刻的金属板施加正的液体抗蚀剂; (c)用来自第一掩模的一个或相应侧面的光曝光正极液体抗蚀剂; (d)以防止位于第一掩模下面的未曝光的正性液体抗蚀剂被保护和暴露的方式显影出正的液体抗蚀剂,去除未固化的液体抗蚀剂; (e)通过由第一掩模和受保护的正性液体抗蚀剂组成的第二掩模,从其一侧或两侧再次对金属板进行蚀刻; (f)重复步骤(b)至(e),直到从金属板获得金属图案; 和(g)从金属板去除未曝光的正性液体抗蚀剂的第一掩蔽和第二次或随后的掩蔽。

    Process for making circuit board or lead frame
    18.
    发明申请
    Process for making circuit board or lead frame 失效
    制造电路板或引线框架的工艺

    公开(公告)号:US20040245213A1

    公开(公告)日:2004-12-09

    申请号:US10822825

    申请日:2004-04-13

    IPC分类号: H01B013/00 B44C001/22

    摘要: A process for making a circuit board comprises the following steps of: half-etching a metal layer formed on an insulating substrate by means of a first masking which is positioned on an upper surface of the metal layer; applying a positive liquid resist on the half-etched metal layer from an upper side of the first masking; exposing the positive liquid resist with parallel light from the upper side of the first masking and developing the positive liquid resist in such a manner that a part of the positive liquid resist located under the first masking is protected to be unexposed and undeveloped; etching again the metal layer by means of a second masking composed of the first masking and the protected positive liquid resist to form a conductive pattern on the insulating substrate; and removing the first masking and the second masking from the metal layer.

    摘要翻译: 制造电路板的方法包括以下步骤:通过位于金属层的上表面上的第一掩模半蚀刻在绝缘基板上形成的金属层; 从第一掩模的上侧在半蚀刻金属层上施加正的液体抗蚀剂; 用来自第一掩蔽的上侧的平行光暴露正的液体抗蚀剂,并以这样的方式显影正极液体抗蚀剂,使得位于第一掩蔽下的正极抗蚀剂的一部分被保护为未曝光和未显影; 通过由第一掩模和受保护的正性液体抗蚀剂构成的第二掩模再次蚀刻金属层,以在绝缘基板上形成导电图案; 以及从金属层去除第一掩蔽和第二掩蔽。

    Process for manufacturing a multi-layer circuit board
    19.
    发明申请
    Process for manufacturing a multi-layer circuit board 失效
    制造多层电路板的工艺

    公开(公告)号:US20010042733A1

    公开(公告)日:2001-11-22

    申请号:US09901848

    申请日:2001-07-09

    IPC分类号: H01B013/00

    摘要: A circuit board having a structure including a permanent photoimageable dielectric material suitable for fabrication of vias both by laser ablation, plasma ablation, or mechanical drilling techniques and by photoimaging techniques. A process is also disclosed for the manufacture of a multi-level circuit on a substrate having a first-level circuitry pattern on at least one side. The process comprises applying a permanent photoimageable dielectric over the first-level circuitry pattern; exposing the permanent photoimageable dielectric to radiation; laminating a conductive metal layer to the dielectric; making holes in the conductive metal layer and dielectric by mechanical drilling or by laser or plasma ablation; and making a second-level circuitry pattern and filling the holes with a conductive material to electrically connect the first and second layers of circuitry. A further process is claimed for designing a multi-level circuit board product comprising making a prototype having the above structure in which the holes are manufactured by mechanical drilling or by laser or plasma ablation, evaluating the prototype, and then manufacturing a commercial circuit board having essentially the same structure and materials of construction as the prototype, but wherein the holes are manufactured by photoimaging techniques.

    摘要翻译: 一种电路板,其结构包括适用于通过激光烧蚀,等离子体消融或机械钻孔技术制造通孔的永久可光成像介电材料,以及通过光成像技术。 还公开了一种用于在至少一侧具有第一级电路图案的衬底上制造多电平电路的工艺。 该过程包括在第一级电路图案上施加永久可光成像电介质; 将永久可光成像电介质暴露于辐射; 将导电金属层层叠到电介质上; 通过机械钻孔或通过激光或等离子体消融在导电金属层和电介质中形成孔; 以及制作二级电路图案,并用导电材料填充所述孔,以电连接所述第一和第二层电路。 要求设计多级电路板产品的另一方法包括制造具有上述结构的原型,其中通过机械钻孔或通过激光或等离子体烧蚀制造孔,评估原型,然后制造商业电路板,其具有 基本上与原型相同的结构和结构材料,但是其中孔通过光成像技术制造。