摘要:
An electrostatic drive type MEMS device and a manufacturing method thereof are provided, in which flattening the surface of a driving side electrode, improving performance, and furthering the improvements of the degree of freedom of designing in the manufacturing process are implemented. In addition, a GLV device using this MEMS device is provided, and further a laser display using this GLV device is also provided. The electrostatic drive type MEMS device includes a substrate side electrode and a beam having a driving side electrode driven by electrostatic attraction force or electrostatic repulsion force that acts between the substrate side electrode and driving side electrode, in which the substrate side electrode is formed of an impurities-doped conductive semiconductor region in a semiconductor substrate.
摘要:
A MEMS element is constituted as a light modulation element for constituting a GLV device, and it has the same constitution as a conventional MEMS element except for differing in the structure of a bridge member of a membrane. The membrane comprises SiN film of, for example, 100 nm in thickness laminated thereon, and a combined light reflective film and membrane-side electrode composed of an Al film of 100 nm in thickness provided on the bridge member. The SiO2 film may be a SiO2 film formed by thermal oxidation of a sacrificing layer formed of polysilicon or may be a SiO2 film formed by a CVD method or a PVD method.
摘要:
The present invention is directed to manufacturing methods of electrostatic type MEMS devices. The manufacturing method of the present invention includes the steps of forming a substrate side electrode on a substrate, forming a fluid film before or after forming a sacrificial layer, further forming a beam having a driving side electrode on a planarized surface of the fluid film, and finally, removing the sacrificial layer. Furthermore, performing the foregoing method planarizes the surface of a driving side electrode, reduces fluctuations in the shape of a beam, and improves the performance and the uniformity of the MEMS device.
摘要:
A method for manufacturing a high Cr system seamless steel pipe having a high inside surface quality with a high efficiency and at a reduced production cost is provided. An initial material including Cr at a content of 10 to 20%, and impurities S and P at respective contents of not more than 0.050% is used to form a finished pipe, and when using parameters, the total soaking period &Sgr;t1 (hours) for soaking the initial material to form a primary pipe material as a billet or bloom and the total soaking period &Sgr;t2 (hours) for soaking the primary pipe material, a finished pipe is formed at a heating temperature of 1,200° C. under the condition that the following equation (b) is satisfied: F = f + 0.6 × ( 1 - 1 e ∑ t1 ) + 0.8 × ( 1 - 1 e ∑ t2 ) > - 9.7 ( b ) where f is a factor indicating the degree of generating the &dgr; ferrites in accordance with the contents of elements included therein. The method allows a high Cr system seamless steel pipe having a very small amount of inside surface defects to be formed, using a high Cr steel. Since a predetermined productivity can be attained without any excessive addition of impurities, a high Cr system seamless steel pipe having a high inside surface quality can be produced with a high efficiency.
摘要:
A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of main-chain carbon-carbon double bonds of a ring-open polymer obtained by ring-opening polymerization of 2-norbornene. The hydrogenated norbornene ring-open polymer has a weight average molecular weight determined by gel permeation chromatography (GPC) of 50,000 to 200,000, a molecular weight distribution of 1.5 to 10.0, and a melting point of 110 to 145° C. A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of carbon-carbon double bonds of a ring-open polymer obtained by ring-opening copolymerization of 2-norbornene and a substituent-containing norbornene monomer, wherein the proportion of a repeating unit (A) derived from the 2-norbornene with respect to all repeating units is 90 to 99 wt % and the proportion of a repeating unit (B) derived from the substituent-containing norbornene monomer with respect to all repeating units is 1 to 10 wt %. A resin composition and a molding material.
摘要:
A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of main-chain carbon-carbon double bonds of a ring-open polymer obtained by ring-opening polymerization of 2-norbornene. The hydrogenated norbornene ring-open polymer has a weight average molecular weight determined by gel permeation chromatography (GPC) of 50,000 to 200,000, a molecular weight distribution of 1.5 to 10.0, and a melting point of 110 to 145° C. A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of carbon-carbon double bonds of a ring-open polymer obtained by ring-opening copolymerization of 2-norbornene and a substituent-containing norbornene monomer, wherein the proportion of a repeating unit (A) derived from the 2-norbornene with respect to all repeating units is 90 to 99 wt % and the proportion of a repeating unit (B) derived from the substituent-containing norbornene monomer with respect to all repeating units is 1 to 10 wt %. A resin composition and a molding material.
摘要:
Disclosed is a heat-activated adhesive sheet which includes a heat-activated adhesive layer, and two release liners arranged so as to sandwich and protect the heat-activated adhesive layer. One of the two release liners is a release liner containing a polyolefinic film as a base material, and the other is a release liner containing a polyester film as a base material. This heat-activated adhesive sheet has a transfer heat-activated adhesive layer, can thereby have a small thickness, is unlikely to suffer from “unintended separation”, and is unlikely to cause lifting and delamination of release liners when the sheet is stored as a roll.
摘要:
A micromachine for a high-frequency filter which has a high Q value and a higher frequency band is provided. The micromachine includes an electrode provided on a substrate, an inter-layer insulation film composed of a first insulation film and a second insulation film which are provided on the substrate in the state of covering the electrode, a hole pattern provided in the second insulation film in the state of reaching the electrode, and a belt-like vibrator electrode provided on the second insulation film so as to cross the upper side of a space portion constituted of the inside of the hole pattern.
摘要:
A curable composition comprises an insulating resin and a halogen-free flame retardant. The halogen-free flame retardant has a particulate form, and whose primary particles have an average major axis from 0.01 to 5 μm, an aspect ratio of 5 or less, and the proportion of a major axis of more than 10 μm being at most 10% by number. A varnish comprises an insulating resin, a curing agent, a flame retardant and an organic solvent. The flame retardant is a flame retardant in particulate form surface-treated with a coupling agent, and the flame retardant particles present in the varnish have a secondary particle diameter of 30 μm or less.
摘要:
A curable composition comprises an insulating resin and a halogen-free flame retardant. The halogen-free flame retardant has a particulate form, and whose primary particles have an average major axis from 0.01 to 5 μm, an aspect ratio of 5 or less, and the proportion of a major axis of more than 10 μm being at most 10% by number. A varnish comprises an insulating resin, a curing agent, a flame retardant and an organic solvent. The flame retardant is a flame retardant in particulate form surface-treated with a coupling agent, and the flame retardant particles present in the varnish have a secondary particle diameter of 30 μm or less.