摘要:
In fabricating a microelectromechanical structure (MEMS), a method of forming a narrow gap in the MEMS includes a) depositing a layer of sacrificial material on the surface of a supporting substrate, b) photoresist masking and at least partially etching the sacrificial material to form at least one blade of sacrificial material, c) depositing a structural layer over the sacrificial layer, and d) removing the sacrificial layer including the blade of the sacrificial material with a narrow gap remaining in the structural layer where the blade of sacrificial material was removed.
摘要:
The invention provides a preparation which shows a satisfactory gastric residence time, has such a size that allows for easy ingestion, can quickly disintegrate after expelled from the stomach, and can be prepared readily in an industrial scale. A gastric retentive preparation having a gastric resident layer and a drug release layer is provided, wherein the gastric resident layer does not disintegrate in the stomach and disintegrates in the intestine. Preferably, the gastric resident layer has a minimum diameter of 7 mm or more as measured after stirring the preparation in the first fluid at 200 rpm at 37° C. for 15 hours under the conditions of the paddle method in the dissolution test in accordance with Japanese Pharmacopoeia and has a maximum diameter of 6 mm or less as measured after further stirring the preparation in the second fluid at 200 rpm at 37° C. for 9 hours under the same conditions.
摘要:
The present invention provides an noise suppression circuit comprises an internal circuit which has a high and a low level terminals. The low level terminal is connected to a low level power supply (GND) line. The noise suppression circuit further comprises a first transistor in which one main electrode is connected to the high level terminal of the circuit, a bypass capacitor connected between the other main electrode of the first transistor and the low level power supply line, and a second transistor connected between the other main electrode of the first transistor and a high level power supply (VDD) line. The first transistor is conductive when the internal circuit is active, and is not conductive when the internal circuit is inactive. The second transistor is not conductive when the internal circuit is active, and is conductive when the internal circuit is inactive. Moreover, a communication circuit for setting the number of data buses to be newly added to be less than two times a transmission on data, then encoding the data to be sent 80 as to make the numbers of “0” and “1” in the data to be sent through the data buses equal to each other and accordingly reducing the increase of the number of the data buses to a minimum and thereby suppressing the common phase power supply noise is provided. A communication apparatus comprising the communication circuit is also provided. Furthermore, the bypass capacitor C for noise suppression circuit is formed in an empty space in a ASIC. A polysilicon layer constituting one electrode of the bypass capacitor is formed in the substrate contact region formed between basic cells regularly arranged, each including a plurality of nMOS and pMOS transistors. This bypass capacitor C is connected between the high and the low level power supply lines to reduce the current running through the power supply line to suppress the EMI noise.
摘要:
A semiconductor memory device including: a first memory cell array including a plurality of memory cells, a first switch circuit for transferring data to be programmed to at least one of the plurality of memory cells arranged in the first memory cell array, a latch circuit for latching the data transferred from the first switch circuit, a first write selector circuit for transferring the data transferred from the latch circuit, a first bit line connected to at least one of the plurality of memory cells and receiving the data transferred from the first write selector circuit, a second memory cell array including a plurality of memory cells that are different from the plurality of memory cells arranged in the first memory cell array, a second switch circuit for transferring data to be programmed to at least one of the plurality of memory cells arranged in the second memory cell array, a second write selector circuit connected to the second switch circuit and transferring the data transferred from the second switch circuit, and a second bit line connected to at least one of the plurality of memory cells arranged in the second memory cell array.
摘要:
A method of improving wear-resistance and anti-seizing properties of slide surface of machineries, such as outer slide surfaces of piston pins of vehicle engines, wherein slide surfaces of iron or steel base materials of machineries are first processed carburizing, then the carburized surfaces are plated with chromium, and next the chromium-plated surfaces undergo impulses fine peening to produce lubricant-retaining cavities on the slide surfaces, which include fine cavities in the form of depressions in the chromium-plating layer and relatively large cavities produced by exfoliation of the chromium-plating layer.
摘要:
The method of the present invention comprises the steps of: provisionally updating a resource through a first transaction program and locking the resource; determining if a second transaction program generates a request to update the resource which has been locked because of the provisional update through the first transaction program; making the second transaction program exclusively wait and reproducing a third transaction program having an internal status identical to that of the second transaction program when the second transaction program generates the update request; providing a virtual resource having an original status before the provisional update through the first transaction program; provisionally updating the virtual resource through the third transaction program without exclusive wait; and rolling back and closing the exclusively waiting second transaction program and executing commit in the reproduced third transaction program when rollback of the first transaction program is executed due to an abnormal situation detected in the first transaction program.
摘要:
In a semiconductor storage device, an access transistor, which has a gate electrode and a pair of impurity diffusion layers, is formed at a device activation region defined by a device isolation structure of a semiconductor substrate. A first insulating film, which has a first contact hole for exposing a portion of the surface of one of the pair of impurity diffusion layers, is formed over the access transistor. A protective film, which has a second contact hole formed on the first contact hole, is formed on the first insulating film. A second insulating film is formed on the side wall faces of the first and second contact holes. A memory capacitor has a lower electrode and an upper part electrode which are opposed each other and are capacitive-coupled through a dielectric film. The lower electrode is filled inside the first and second contact holes to be formed in an island-like shape on the first insulating film through the protective film so as to be electrically connected with the one of the pair of impurity diffusion layers. Each of the first and second contact holes has a diameter which is made smaller by an existence of the second insulating film than a minimum dimension determined by an exposure limit in a photolithography.
摘要:
A semiconductor memory device has access transistors with a gate and a pair of impurity diffusion layers formed on a semiconductor substrate and memory capacitors with a storage node electrode and a cell plate electrode. The electrodes are connected to each other via a capacitive insulating layer made of a ferroelectric material. The storage node electrode has a surface covered with the capacitive insulating layer and is formed in a shape of column on one of the pair of impurity diffusion layers in a hole formed from an inter-layer insulating film covering the access transistor to the one of the pair of impurity diffusion layers. A upper surface of the column does not exceed the inter-layer insulating film. The storage node electrode formed in the hole face the cell plate electrode via the inter-layer insulating film.
摘要:
The present invention provide a system and a method for analyzing the static timing for LSIs which involves rather a small number of false paths contained in output results and also which reduces the processing time required. A static-timing analysis technique according to the present invention comprises a net-list input step S110 which inputs per-transistor basis connection information, to construct an internal data structure for analysis; an expected-value check step S120 which checks, against the above-mentioned internal data structure, each node on whether its expected values may be a high-impedance state; a signal-flow direction narrow-down step S130 which narrows down the directions in which the transistor signal may flow, based on the obtained expected values; a division step S140 which divides a sequential circuit into units consisting of only combinational sub-circuits; a path search step S150 which searches paths for each of thus divided units; and an output step S170 which outputs the obtained results.
摘要:
A column for low pressure-high speed liquid chromatography, including a column body being made of a transparent or translucent plastic and having a column chamber, said column body having one end opened and the other provided with an outflow opening, a pair of upstream and downstream filters for shutting a granular filler inside said column chamber, and a head portion being made of a plastic and detachably being fitted to said one open end of the column body and having an inflow through opening communicating with interior of said column body. A column device includes the column and a method for using the column device are also disclosed for low pressure-high speed liquid chromatography.