摘要:
A method for fabricating a flexible semiconductor device includes: preparing a layered film 80 including a first metal layer 10, an inorganic insulating layer 20, a semiconductor layer 30, and a second metal layer 40 which are sequentially formed; etching the first metal layer 10 to form a gate electrode 12g; compression bonding a resin layer 50 to a surface of the layered film 80 provided with the gate electrode 12g to allow the gate electrode 12g to be embedded in the resin layer 50; and etching the second metal layer 40 to form a source electrode 42s and a drain electrode 42d, wherein the inorganic insulating layer 20 on the gate electrode 12g functions as a gate insulating film 22, and the semiconductor layer 30 between the source electrode 42s and drain electrode 42d on the inorganic insulating layer 20 functions as a channel 32.
摘要:
The present invention achieves a formation of a metal oxide film of a thin film transistor with a simplified process. The present invention is concerned with a method for manufacturing a field-effect transistor comprising a gate electrode, a source electrode, a drain electrode, a channel layer and a gate insulating layer wherein the channel layer is formed by using a metal salt-containing composition comprising a metal salt, a polyvalent carboxylic acid having a cis-form structure of —C(COOH)═C(COOH)—, an organic solvent and a water wherein a molar ratio of the polyvalent carboxylic acid to the metal salt is in the range of 0.5 to 4.0.
摘要:
A pair of discretionary points on a principal surface of a block are coupled to each other with a metal wire having a length larger than a distance between the pair of discretionary points, liquid resin is applied to the principal surface so as to cover the metal wire and then cured, so that a resin-cured material is formed, and the upper-surface portion of the resin-cured material is removed together with an intermediate portion of the metal wire, and then the block is removed from the resin-cured material.
摘要:
A semiconductor device (1) of the present invention includes a semiconductor element (103) including electrode parts (104), and a wiring substrate (108) including an insulation layer (101), electrode-part-connection electrodes (102) provided in the insulation layer (101), and external electrodes (107) that is provided in the insulation layer (101) and that is connected electrically with the electrode-part-connection electrodes (102), in which the electrode parts (104) and the electrode-part-connection electrodes (102) are connected electrically with each other. The insulation layer (101) has an elastic modulus measured according to JIS K6911 of not less than 0.1 GP a and not more than 5 GPa, and the electrodes (104) and the electrode-part-connection electrodes (102) are connected by metal joint.
摘要:
A semiconductor device (1) of the present invention includes a semiconductor element (103) including electrode parts (104), and a wiring substrate (108) including an insulation layer (101), electrode-part-connection electrodes (102) provided in the insulation layer (101), and external electrodes (107) that is provided in the insulation layer (101) and that is connected electrically with the electrode-part-connection electrodes (102), in which the electrode parts (104) and the electrode-part-connection electrodes (102) are connected electrically with each other. The insulation layer (101) has an elastic modulus measured according to JIS K6911 of not less than 0.1 GP a and not more than 5 GPa, and the electrodes (104) and the electrode-part-connection electrodes (102) are connected by metal joint.
摘要:
A semiconductor module, comprising: a semiconductor element having a principal face on which an element electrode is formed; and a film member comprising an insulating resin layer having a front face and a rear face which is opposite to said front face, and a wiring pattern formed on the rear face of said layer, wherein said semiconductor element is superposed on said film member so that the principal face of said semiconductor element is in contact with the front face of the insulating resin layer of said film member; and a part of the wiring pattern of said film member extends through said insulating resin layer, so that said part is in contact with the element electrode of said semiconductor element.
摘要:
A component built-in module includes an insulating layer, wirings integrated with both surfaces of the insulating layer, a via connecting the wirings, and one or more components selected from an electronic component and a semiconductor, which is embedded inside of the insulating layer. In this module, at least one of the wirings is formed on a surface of a wiring board, and the components embedded inside of the insulating layer are mounted on and integrated with the wiring board before embedding. This configuration allows the components such as a semiconductor to undergo a mounting inspection and a property inspection before embedding. As a result, the yields of the module can be improved. In addition, since the components are integrated with the wiring board and embedded, the strength thereof can be enhanced.
摘要:
A component built-in module includes an electric insulation layer, first wiring patterns in a plurality of layers that are laminated with the electric insulation layer being interposed therebetween, at least one first inner via electrically connecting the first wiring patterns in different layers with each other, and at least one electronic component that is embedded in the electric insulation layer and is mounted on any one of the first wiring patterns in the plurality of layers, wherein at least one of the first inner vias is present in a range that overlaps a range in which the electronic component is present in a lamination direction in which the first wiring patterns are laminated, and has a height in the lamination direction that is smaller than a height of the electronic component. Since the first inner via has a small height, the via diameter can be decreased. Therefore, it is possible to provide a component built-in module that has high reliability and is suitable for high-density component mounting.
摘要:
An insulation sheet for use in producing a wiring substrate comprises, as via bole conductors, conductive paste filled in via holes formed through the insulation sheet, and a curing-starting temperature of the conductive paste is lower than a melting-starting temperature of the insulation sheet. A wiring substrate is produced by laminating such insulation sheets, that have conductive paste in via holes, and subjecting this laminate to thermo-compression bonding, wherein deformation of via holes and dislocation of the via holes, because of a molten insulation sheet, does not occur.
摘要:
A circuit component built-in module includes: a first electrical insulating substrate made of a mixture containing an inorganic filler and a thermosetting resin; a plurality of wiring patterns formed at least on a principal surface of the first electrical insulating substrate; a semiconductor chip incorporated in the first electrical insulating substrate and connected electrically with the wiring patterns; and inner vias electrically connecting the plurality of wiring patterns with one another, the inner vias passing through the first electrical insulating substrate. In the circuit component built-in module, the semiconductor chip has a thickness of not less than 30 &mgr;m and not more than 100 &mgr;m, and has a non-wired surface ground, and the circuit component built-in module has a thickness in a range of not less than 80 &mgr;m and not more than 200 &mgr;m. With this configuration, the high-performance and compact-size circuit component built-in module in which circuit components are mounted at a high density is provided so as to be used suitably in various types of electronic information devices.