摘要:
A manufacturing apparatus of a semiconductor device includes an introducing section, a process section, and a withdrawing section. The introducing section introduces a transfer box therein. The process section takes in the semiconductor substrate put in the introducing section and applies a prescribed processing to the semiconductor substrate. Further, the withdrawing section is arranged on a surface differing from the surface on which the introducing section is arranged and discharges the transfer box holding the semiconductor substrate withdrawn from the process section of the semiconductor substrate.
摘要:
A method of manufacturing a semiconductor device. In the method, a thin film is formed on an Si substrate having face orientation (100), that part of the thin film, which lies on an element-isolating region, is removed. Then, the Si substrate is subjected to selective etching, making a trench in the substrate to isolate an element, by using the thin film as mask and a mixture solution of hydrofluoric acid and ozone water.
摘要:
An etching method of subjecting a base material to an etching process using an etching agent containing hydrogen fluoride and ozone is disclosed. The base material has a first region constituted from silicon as a main material and a second region constituted from SiO2 as a main material. The etching method includes the steps of: preparing the base material; and supplying the etching agent onto the base material to form a step between the first and second regions using a feature that an etching rate of silicon by the etching agent is higher than an etching rate of SiO2 by the etching agent, so that the height of the surface of the first region is lower than the height of the surface of the second region.
摘要:
A case accommodates two circuit components to be overlapped one above the other and mutually in an approximately parallel form. The terminals of the upper electric power conducting channel are fitted into the terminals of the lower electric power conducting channel one above the other so that they can be connected. The case is provided with a positioning part which regulates deflection of both the terminals above and below toward the vertical direction intersecting with the direction that the terminal is fitted into the terminal, thus making it possible to give positioning to a plurality of the terminals all together and also making it possible to connect the terminals and the terminals respectively to their counterparts without fail. Further, the positioning part is provided on the case for accommodating the circuit components, which eliminates the necessity for a special positioning member.
摘要:
In an improved ozonizer, at least those parts of an ozone gas delivery path located downstream of an ozone generating cell which are to come into contact with ozone gas are either composed of or coated with at least one ozone-resistant, Cr-free material selected from among aluminum (Al), an aluminum alloy, Teflon, fluorinated nickel, a nickel alloy, a silicon oxide based glass and a high-purity aluminium oxide. The ozonizer is capable of producing ozone that is not contaminated with Cr compounds at all or which is insufficiently contaminated to cause any practical problem in the fabrication of highly integrated semiconductor devices.
摘要:
A polishing pad for a semiconductor wafer, which pad is made of a foamed fluorine-contained resin sheet and is highly resistant to a corrosive polishing solution such as bromine-methanol system or bromine-methanol-silica powder system.
摘要:
A composition for use in forming a hard tissue substitute comprising (A) a powder ingredient mainly comprised of Ca.sub.n+2 (PO.sub.4).sub.2 O.sub.n-1, where n is from 1.9 to 4.9 and (B) an aqueous solution of an organic acid, preferably of the TCA cycle, or a polymer of an organic acid. This composition has a good affinity with living organisms, a high compressive strength, and a low disintegration rate.
摘要:
An abrasive composition comprising: an aluminous abrasive, preferably having an average particle size of 0.5-10 .mu.m and a concentration of 1 to 25% by weight; nickel sulfamate, preferably having a concentration of 0.5 to 10% by weight; and water, the composition preferably having a pH of 4 to 7. This abrasive composition produces a superior effect when used for polishing an aluminum-based substrate for a magnetic recording disc.
摘要:
A system for controlling production of electronic devices includes a recipe creation unit creating a processing recipe describing processing conditions for first and second processes so as to satisfy a production specification of a characteristic and a yield rate of the electronic devices, and an additional recipe describing additional processing conditions determined based on a relation of the characteristic and the yield rate to a latency time between a completion time of the first process and a start time of the second process so as to satisfy the production specification; and a recipe designation module designating the additional recipe for processing of intermediate products of the electronic devices, produced by the first process, when the latency time exceeds a reference.
摘要:
In a small scaled plant intended for flexible manufacturing, a pure water supply system is provided at a low cost without reducing a production efficiency. A pure water system produces a plurality of grades of pure water which are supplied through pipes connected to points of use for cleaning, CMP, lithography, and the like. Upon receipt of a request signal from each point of use for starting to use a certain grade of pure water, a controller determines whether or not a required amount exceeds the capacity of the grade of pure water which can be supplied by the pure water system. If not, the controller sends a use permission signal to the point of use for permitting the same to use the pure water. When a certain use point is using the requested grade of pure water, the controller may not permit the requesting point of use to use the pure water until a use end signal is sent from the use point which is using the pure water.