摘要:
A lower alkyl polysilsesquioxane having a general formula ##STR1## wherein R is CH.sub.3 is C.sub.2 H.sub.5, and n is an integer equal to about 50 to about 10,000, prepared by (a) dissolving a lower alkyl trifunctional silane in an organic solvent at a temperature of -31 20.degree. C. to -50.degree. C. to form an organic solution thereof; (b) hydrolyzing the lower alkyl trifunctional silane by dropping water into the organic solution at a temperature of -20.degree. C. to -50.degree. C. under an inert gas pressurized at 1,000 to 3,000 Pa; and (c) gradually heating the organic solution together with a water phase lying therebeneath up to a temperature of 60.degree. C. to 100.degree. C. under an inert gas pressurized at 1,000 to 3,000 Pa.Also, a flat surfaced insulating layer of a silylated organopolysilsesquioxane having a general formula ##STR2## wherein R is an alkyl or phenyl group, and n is an integer equal to about 50 to about 2,000, preferably about 50 to about 500, formed on a circuit board having stepwise differences in height thereon, by applying an organic solution of the polymer; evaporating the solvent; and melting the polymer to flatten the surface of the polymer and curing the polymer.
摘要:
A lower alkyl polysilsesquioxane having a general formula ##STR1## wherein R is CH.sub.3 or C.sub.2 H.sub.5, and n is an integer equal to about 50 to about 10,000, prepared by (a) dissolving a lower alkyl trifunctional silane in an organic solvent at a temperature of -20.degree. C. to -50.degree. C. to form an organic solution thereof; (b) hydrolyzing the lower alkyl trifunctional silane by dropping water into the organic solution at a temperature of -20.degree. C. to -50.degree. C. under an inert gas pressurized at 1,000 to 3,000 Pa; and (c) gradually heating the organic solution together with a water phase lying therebeneath up to a temperature of 60.degree. C. to 100.degree. C. under an inert gas pressurized at 1,000 to 3,000 Pa.Also, a flat surfaced insulating layer of a silylated organopolysilsesquioxane having a general formula ##STR2## wherein R is an alkyl or phenyl group, and n is an integer equal to about 50 to about 2,000, preferably about 50 to about 500, formed on a circuit board having stepwise differences in height thereon, by applying an organic solution of the polymer; evaporating the solvent; and melting the polymer to flatten the surface of the polymer and curing the polymer.
摘要:
A plurality of lines are formed on the principal face of a substrate. An insulating film is formed on the principal surface of this substrate so as to cover the lines. This insulating film consists of a material which contains a low-dielectric constant composition having caged molecular structural units. Spaces of thin electron clouds delineate the centers of the caged molecular structural units. The dielectric constant is accordingly lower than that of denser materials.
摘要:
An optical circuit system which takes out at least a portion of the light of a light power source corresponding to at least one type of output voltage of an IC, board, multichip module, electronic element, or opto-electronic element and produces an optical signal, wherein the light power source is an optical waveguide into which light has been introduced, a waveguide laser, or a waveguide optical amplifier, light reflecting portions are provided at its ends and/or middle, a signal transmission waveguide is formed in contact with the side surface and/or top or bottom surface of the optical waveguide or in proximity to the same at a certain distance, and the optical signal corresponding to at least one type of output voltage of the IC, board, multichip module, electronic element, or opto-electronic element is made to propagate to the signal transmission waveguide, which optical circuit system is rich in flexibility and enables complicated optical interconnections to be handled, and components of the same.
摘要:
An optical circuit system which takes out at least a portion of the light of a light power source corresponding to at least one type of output voltage of an IC, board, multichip module, electronic element, or opto-electronic element and produces an optical signal, wherein the light power source is an optical waveguide into which light has been introduced, a waveguide laser, or a waveguide optical amplifier, light reflecting portions are provided at its ends and/or middle, a signal transmission waveguide is formed in contact with the side surface and/or top or bottom surface of the optical waveguide or in proximity to the same at a certain distance, and the optical signal corresponding to at least one type of output voltage of the IC, board, multichip module, electronic element, or opto-electronic element is made to propagate to the signal transmission waveguide, which optical circuit system is rich in flexibility and enables complicated optical interconnections to be handled, and components of the same.
摘要:
A molecule design support apparatus has an input part, a display to display on a screen thereof a three-dimensional molecular structure by a half vector format or a ball-and-stick format, and a determining part to determine, in the molecular structure, an end that is to become a target of a coordinate modification with respect to a molecule in its entirety, in response to a bond axis of the molecule specified from the input part. The apparatus further has a modifying part to make a modification of the molecular structure based on the specified bond axis and the end that is the target of the coordinate modification, in response to the modification specified from the input part, and a display part to display a modified molecular structure on the screen of the display based on a determination made by the determining part and the modification made by the modifying part.
摘要:
The object of the present invention is to provide an organic EL element which utilizes a novel condensed eight-ring aromatic compound, and has high color purity of red light and excellent light-emitting efficiency, light-emitting luminance and the like. The organic EL element of the present invention has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer. The organic thin-film layer contains the condensed eight-ring aromatic compound which has a number of regions where substituents can be introduced is any of 14, 16 and 18, and the condensed eight-ring aromatic compound has a point-symmetrical skeleton.
摘要:
A nonlinear optical material composed of a polyimide obtained from a diamine and/or a diacid anhydride or dithioacid anhydride substituted by a portion having a nonlinear optical effect or of molecules having a benzocyclobutene structure substituted at the portions having an nonlinear linear optical effect.
摘要:
A nonlinear optical material composed of a polyimide obtained from a diamine and/or a diacid anhydride or dithioacid anhydride substituted by a portion having a nonlinear optical effect or of molecules having a benzocyclobutene structure substituted at the portions having an nonlinear linear optical effect.
摘要:
A method for fabricating a semiconductor is disclosed.The method includes the steps of forming a porous insulation film and wires on the substrate, the wires embedded in the porous insulation film having a portion adjacent to the wires and a remote portion spaced apart from the wires; and applying an energy beam to the remote portion to change the structure of the porous insulation film such that an Young's modulus of the porous insulation film increased so as to substantially reinforce the strength of the porous insulation film.