摘要:
It is an object of the present invention to provide a siloxane-modified hyperbranched polyimide which has more excellent electric properties (low dielectric property), gas permeability, mechanical properties (low modulus), surface properties (adhesiveness) and the like while maintaining thermal stability, mechanical strength, chemical resistance and processability and the like intrinsic to polyimide and which may be variously functionalized and can be utilized advantageously in industrial applications. A siloxane structure represented by the following structural formula (1) is introduced into a three-dimensional structured hyperbranched polyimide molecule. (wherein R1 represents a hydrocarbon group having from 1 to 6 carbon atoms, and n indicates an integer of from 1 to 50).
摘要:
A semiconductor device has an element interconnection 2, a top-layer element interconnection 4, a super-connect interconnection 10 and a bump 7. The element interconnection 2 is provided on a semiconductor substrate 1 through a plurality of insulating layers 50. The top-layer element interconnection 4 is formed above the element interconnection 2 by using a substantially equivalent process equipment. The super-connect interconnection 10 is provided on the top-layer element interconnection 4 through a super-connect insulating layer 9 having a thickness five or more times larger than that of the insulating layer 5, and has a thickness three or more times larger than that of each the element interconnection 2 and the top-layer element interconnection 4. The bump 7 is formed on the super-connect interconnection 10. The top-layer element interconnection 4 has a signal pad 4s, a power source pad 4v and a ground pad 4g. An area of the signal pad 4s is smaller than each area of the power source pad 4v and the ground pad 4g.
摘要:
A multilayer substrate is provided with a conductor plane region in which a plurality of conductor planes are disposed; a clearance region disposed adjacent to the conductor plane region so that the plurality of conductor planes are excluded from the clearance region. A plurality of signal vias are disposed through the clearance region so that the plurality of signal vias are isolated from the plurality of conductor planes. A conductor post is connected to one of the plurality of conductor planes and disposed between two of the signal vias in the clearance region.
摘要:
A semiconductor device has an element interconnection 2, a top-layer element interconnection 4, a super-connect interconnection 10 and a bump 7. The element interconnection 2 is provided on a semiconductor substrate 1 through a plurality of insulating layers 50. The top-layer element interconnection 4 is formed above the element interconnection 2 by using a substantially equivalent process equipment. The super-connect interconnection 10 is provided on the top-layer element interconnection 4 through a super-connect insulating layer 9 having a thickness five or more times larger than that of the insulating layer 5, and has a thickness three or more times larger than that of each the element interconnection 2 and the top-layer element interconnection 4. The bump 7 is formed on the super-connect interconnection 10. The top-layer element interconnection 4 has a signal pad 4s, a power source pad 4v and a ground pad 4g. An area of the signal pad 4s is smaller than each area of the power source pad 4v and the ground pad 4g.
摘要:
It is to provide a wiring board for a semiconductor integrated circuit package, which exhibits an excellent signal property and a high effect for decreasing the switching noise at the time of mounting an LSI of an area-array structure. In a multilayer wiring board for a package, which comprises, on a wiring layer of an LSI chip mount surface, a ground pad, a power supply pad, and a signal pad for mounting LSI chip, and a ground plane that extends around a group of those pads, the ground pad disposed on the inner side, among the above-described pads, is connected to the ground plane that surrounds the pad group through a connecting wiring.
摘要:
A mechanical deformation amount sensor includes a sensor structure which is formed by a semiconductor substrate or an insulating substrate and integrally includes a deformation portion deformable, when a physical quantity to be detected is applied to the sensor structure, due to the physical quantity and a support portion for supporting the deformation portion, a carbon nanotube resistance element which is provided on the deformation portion so as to be mechanically deformed in response to deformation of the deformation portion and a wiring pattern which is formed in a pattern on the sensor structure so as to be connected to the carbon nanotube resistance element. By applying a voltage to the carbon nanotube resistance element via the wiring pattern, a change of electrical conductivity of the carbon nanotube resistance element upon mechanical deformation of the carbon nanotube resistance element is fetched as an electrical signal.
摘要:
There is disclosed a method for manufacturing an Fe-based sintered alloy which is superb in machinability. This process comprises the steps of coating a paste-like coating agent including a compound of boron to a surface of a compact of Fe-based or Fe, Cu-based sintered alloy powder including carbon or a pre-sintered compact obtained by heating the compact at a diffusion temperature or less of carbon, and sintering a resultant compact or a pre-sintered compact at a diffusion temperature or more of carbon. An Fe-based sintered alloy manufactured through this process and a bearing cap made of such an Fe-based sintered alloy are also disclosed. In the invention, a film including a compound of boron and pyrolytic resin can be used instead of the paste-like coating agent.
摘要:
An apparatus and a method for forming a three-dimensional article with photosetting or thermosetting material on the basis of a three-dimensional information on the article by means of an ink jet method. The material is jetted from at least one ink jet head to a stage and laminated thereon. The laminated material is exposed to light by a light source to be cured. In this process, a jetting direction of the material from the ink jet head to the stage and/or a jetting amount of the material jetted from the ink jet head is changed in accordance with the information by a control unit, thereby forming a solid article having a desired three-dimensional shape.
摘要:
An image recording apparatus having a first exposure unit for forming a latent image corresponding to an original image on a photosensitive pressure sensitive recording medium, and a second exposure unit for electrostatically forming a developer particle image. The developer particle image is transferred onto the photosensitive pressure sensitive recording medium, and the thus transferred developer particles are reacted with chromogenic material of the photosensitive recording medium at a pressure developing unit so that a visible image is provided on another sheet medium. A method for recording the image includes the steps of effecting a first exposure for forming the latent image, effecting a second exposure for forming the developer particle image, electrostatically transferring the developer particle image onto the recording medium, and pressure developing the image to provide a visible image on a separate plane paper.
摘要:
A developer sheet having a high light resistivity comprises a layer having an electrophilic developer coated thereon, and a layer having transparent or semitransparent particles containing an ultraviolet-ray absorbent and a process for producing the developer sheet.