Abstract:
PROBLEM TO BE SOLVED: To provide an interposer in which a capacitor dielectric film having an extremely high dielectric constant is formed without forming a through hole in a substrate and its production method. SOLUTION: The interposer comprises a substrate 8 consisting of a plurality of resin layers 68, 20, 32 and 48, thin film capacitors 18a and 18b embedded between a first resin layer 68 and a second resin layer 20 out of the plurality of resin layers and having first capacitor electrodes 12a and 12b, a second capacitor electrode 16 formed oppositely to the first capacitor electrodes, and a capacitor dielectric film 14 having a dielectric constant of 200 or above formed between the first and second capacitor electrodes, a first through electrode 77a penetrating the substrate and connected electrically with the first capacitor electrode, and a second through electrode 77b penetrating the substrate and connected electrically with the second capacitor electrode. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a flexible substrate which can easily cope with the formation of a fine pitch and the multilayering of a wiring layer. SOLUTION: After forming a connecting pad 18 and an alignment mark M1 on a long scale-like sheet metal 10 conveyed in a longitudinal direction, an insulating layer 20 covering the connecting pad 18 is formed, a via-hole 20x positioned on the connecting pad 18 is formed in a portion of the insulating layer 20 by utilizing the alignment mark M1, and after forming an n-layered (n: an integer of 1 or more) built-up wiring layer connected to the connecting pad 18 through the via-hole 20x, the connecting pad 18 and the insulating layer 20 are exposed by removing the sheet metal 10. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To manufacture a thin type high-gastight electronic device by accurately integrating a solder material with a base of a circuit board. SOLUTION: An inner layer circuit 7 is buried in a ceramic base 6. Using the inner layer circuit 7, component electrodes 8, terminal electrodes 9 and annular electrodes 10 are formed on the surface of the base 6 by electroplating from the same metal material at once, and holes for cutting off the inner layer circuit 7 are bored in the peripheral edge of the base 6 to cut off the component electrodes 8 from the annular electrode 10. Using a part of the cut inner layer circuit 7, a solder material 5 is deposited on the surface of the annular layer 10 by electroplating. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a card-type electronic apparatus whose outer appearance quality can be enhanced, while reducing the manufacturing cost of a multilayer printed wiring board. SOLUTION: The card type electronic apparatus comprises the multilayer printed wiring board (2) and a case (3) for housing the multilayer printed wiring board. The multilayer printed wiring board is made by alternately laminating a plurality of insulation layers (5a, 5b, 5c) and a plurality of conductor layers (6a, 6b, 6c). One face (4a) of the multilayer printed wiring board along the laminating direction is formed of the insulation layers only, and at least part of this face is exposed out of the case through an opening of the case. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a sheet-like connector in which electrode structures having small-diameter surface electrode sections can be formed in a state where the structures do not cause troubles of falling from an insulating sheet and can obtain high durability, and which can surely gain a stable electrically connected state even to a circuit device in which electrodes are formed in short pitches, and to provide a method of manufacturing the connector and the application of the connector. SOLUTION: This sheet-like connector has an insulating sheet and a plurality of electrode structures formed in the insulating sheet in a state where the structures are extended through the insulating sheet in the thickness direction of the sheet. Each electrode structure comprises a surface electrode exposed on and protruded from the surface of the insulating sheet, a rear electrode exposed on the rear surface of the insulating sheet, and a short-circuiting section which is continuously extended in the thickness direction of the insulating sheet through the sheet from the base-side end of the surface electrode section and connected to the rear electrode. The structure also comprises a holding section which is continuously extended outward along the surface of the insulating sheet from the base-side end of the surface electrode. COPYRIGHT: (C)2004,JPO