Abstract:
PROBLEM TO BE SOLVED: To provide a method which can manufacture a light transmissive electromagnetic shielding material using a simple method, which is excellent in light transparency, electromagnetic wave shielding property, appearance, and visibility, and has a highly precise mesh pattern. SOLUTION: This method of manufacturing the light transmissive electromagnetic shielding material comprises the steps of: A 1 forming a meshed pretreatment layer 12 on a transparent substrate 11 by printing an electroless plating pretreatment agent containing a compound metal oxide and/or a compound metal oxide hydrate, and a synthetic resin in a shape of a mesh on the transparent substrate 11; and A 3 forming a meshed metal conductive layer 13 by electroless plating processing on the pretreatment layer 12. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a wiring board of a semiconductor package being used for driving an LCD and to provide its producing process and a semiconductor package utilizing it. SOLUTION: In the producing process of a wiring board for a semiconductor package, a circuit pattern forming area is imprinted on an insulating substrate 100 by etching and then a circuit pattern 110 is formed by filling the circuit pattern forming area with a metallic material. Productivity is thereby enhanced while saving the cost by skipping the photographic step in a process for producing a semiconductor package being used for driving an LCD, reliability of a product is improved by preventing occurrence of a defect in the process for forming the circuit pattern 110 of metallic material and a circuit pattern having a fine line width is produced more efficiently. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a new method for connecting an LCD to a PCB which does not rely on an intermediate material but uses a laser beam, and is speedier, more economical, and technically more reliable. SOLUTION: The printed circuit board (PCB) is connected to the electrode routes of the liquid crystal display cell (LCD) provided with a lower plate, an upper plate, and a sealed-up frame for sealing the liquid crystal. To support the electrode routes on the rear surface of the upper plate, the upper plate is formed with at least one extension part of a small width to form a display cell; the extension part is arranged on the contacts of PCB to form a connection area; the laser beam is focused on the connection area with diagonal incidence through the upper plate or to the lower plate to eventually establish the connection between the routes and the PCB. COPYRIGHT: (C)2004,JPO