Abstract:
Disclosed are a substrate for a metal printed circuit board and a method for manufacturing the substrate. The method for manufacturing the substrate for a metal printed circuit board of the present invention includes a step of forming an insulating layer on a metal substrate through a sputtering method for physical vapor deposition, a step of depositing a first thin film, formed of conductive metal and having compressive residual stress, on the insulating layer through a sputtering method, a step of depositing a second thin film, formed of conductive metal and having tensile residual stress, on the first thin film through a sputtering method, and a step of depositing a thick electrical conductive layer with total residual stress controlled within a preset range by repeating the steps of depositing the first thin film and the second thin film.
Abstract:
세라믹 인쇄회로기판의 원판 및 그 원판의 제조 방법이 개시된다. 본 발명의 원판 제조방법은, 세라믹 기판 상에 물리적 기상증착을 위한 스퍼터링 방법에 의해 접착층을 형성하는 단계와, 상기 접착층 상에 스퍼터링 방법에 의해 전도성 금속으로 이루어지고 압축 잔류응력을 가지는 제1박막을 증착하는 단계와, 상기 제1박막 상에 스퍼터링 방법에 의해 전도성 금속으로 이루어지고 인장 잔류응력을 가지는 제2박막을 증착하는 단계와, 상기 제1박막 및 제2박막을 증착하는 단계를 반복하여 전체 잔류 응력이 기 설정된 범위내로 제어된 후막의 전기 전도층을 증착하는 단계를 포함한다.
Abstract:
This process for producing a resist pattern includes: the step of laminating (a) a support having an upper surface on which copper exists, (b) an inorganic substance layer consisting of an inorganic substance supplied from an inorganic substance source, and (c) a photoresist layer consisting of a chemically amplified type positive photoresist composition, to obtain a photoresist laminate, the step of selectively irradiating active light or radioactive rays to said photoresist laminate, and the step of developing said (c) photoresist layer together with said (b) inorganic substance layer to form a resist pattern.
Abstract:
Disclosed is a metal-clad laminate product having a carrier film, a aqueous soluble release or parting layer depositied onto the carrier film and which can be mechanically separated from the carrier film, and an ultra thin metal layer deposited onto the parting layer. Also disclosed is a method for making the metal-clad laminate product.
Abstract:
A process for forming a patterned conductive structure on a substrate is disclosed. A pattern is printed with a material, such as a masking coating or an ink, on the substrate, the pattern being such that, in one embodiment, the desired conductive structures will be formed in the areas where the printed material is not present, i.e. a negative image of conductive structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired conductive structures will be formed in the areas where the printed material is present, i.e. a positive image of the conductive structure is printed. The conductive material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned electrode structures.
Abstract:
A thin flexible electric conductor for use in implantable devices such as cochlear implants, consists of a conductive metal layer coated on a flexible three dimensionally textured surface so that the current capacity of the conductor is increased relative to the current capacity of a conductor of the same size that is not on a three dimensional surface. The flexible substrate is treated to form a three dimensional surface such as with corrugations and a conductive layer is deposited onto the surface.
Abstract:
A substrate (16) with hermetically sealed vias (18) extending from one side of the substrate to another and a method for fabricating same. The vias may be filled with a conductive material such as, for example, a fritless ink. The conductive path formed by the conductive material aids in sealing one side of the substrate from another. One sideof the substrate may include a sensing element (12) and another side of the substrate may include sensing electronics (14).
Abstract:
This invention relates to a treated copper foil, comprising: a copper foil with a layer of zinc oxide adhered to the base surface of at least one side of said copper foil, said layer of zinc oxide having a thickness of about 3 ANGSTROM to about 80 ANGSTROM ; and a layer of a trivalent chromium oxide adhered to said layer of zinc oxide. In one embodiment, the foil has a layer of a silane coupling agent adhered to the layer of trivalent chromium oxide. The invention also relates to a process for applying the layer of zinc oxide and the layer of trivalent chromium oxide to the copper foil. The invention also relates to laminates comprising a dielectric substrate and the foregoing copper foil adhered to the substrate. In one embodiment, the dielectric substrate is comprised of an epoxy resin made with a curing agent that is other than an amine curing agent.