摘要:
A wire (12) is formed on an insulating film (10) on a semiconductor substrate (1). The wire (12) is covered by silicon nitride film (14), inorganic SOG film (20) and TEOS film (21). A thin film resistance element (30) of chromium silicon (CrSi) is formed on the upper surface of the TEOS film (21). The acute angle (taper angle) at which a line connecting the local maximum and minimum points of a step on the upper surface of the TEOS film (21) beneath the area where the thin film resistance element (30) is formed intersects to the surface of the substrate (1) is set to 10° or less.
摘要:
A wiring connection structure for a semiconductor integrated circuit device interconnects a plurality of wiring layers isolated by an insulating layer, via a through hole defined in the insulating layer. The wiring connection structure comprises a semiconductor substrate, a first insulating layer, a first wiring layer, a second insulating layer and a second wiring layer. The first insulating layer is formed on a main surface of the semiconductor substrate. The first wiring layer is formed on the first insulating layer. The second insulating layer is formed on the first wiring layer. The through hole is formed in the second insulating layer so as to extend to a surface of the first wiring layer. The second wiring layer is formed on the second insulating layer and connected to the first wiring layer via the through hole. The through hole is a single through hole formed in a region where the second wiring layer overlaps with the first wiring layer. The through hole has a cross section comprising a figure formed by indenting peripheries of a single rectangular figure. This cross section has a longer perimeter than the single rectangular figure. Alternatively, the cross section comprises a figure formed by interconnecting band portions extending along the second wiring layer. A reduction is achieved in components of resistance over an entire through hole forming region. Concentration of current density on side walls of the through hole is also mitigated.
摘要:
In a clean room having a plurality of floors of different levels, an escalator is disposed between the plurality of floors for transporting an article between the floors. A self-propelled vehicle is used for transporting an article between floors. The self-propelled vehicle and the article are loaded on a step of the escalator. The vehicle and the article are held on the step from above the article by means of a holding section. The holding section assists loading of the vehicle onto the escalator through the article in the vicinity of an entrance gate of the escalator and assists unloading of the vehicle from the escalator in the vicinity of an exit gate.
摘要:
Two or three trenches are formed in a silicon substrate, and a conductive layer is formed in the silicon substrate facing the trenches. An oxide film for insulation is formed on a surface of the conductive layer facing the trenches. The trenches are filled with polysilicon, and the conductive layer and the polysilicon constitute a capacitor through the oxide film. Since this capacitor has two or three trenches, an effective area sufficiently large for increasing a capacitance value of the capacitor can be obtained without increasing the plane area of the device. The conductive layer and the polysilicon are connected to aluminum interconnection layers through a silicide layer, so as to be connected to other integrated circuits.
摘要:
A process control method allowing an operator to readily confirm an order of operation processes includes steps of: reading magnetic data of a control card when the control card is inserted; transmitting completion data based on a lot number identified from read magnetic data to a host computer; receiving update data by the host computer; writing next process data in the received data as a visually recognizable image on the control card; and writing the next process data as a visually recognizable image based on process data identified by the read magnetic data when a predetermined time period passes without receiving update data.
摘要:
This invention relates to a magnetoresistive element used for a magnetic sensor, etc. A ferromagnetic magnetoresistive element thin film is formed so as to be electrically connected to and so as to overlap the upper end portion of an aluminum wiring metal on a substrate. Through using a vacuum heat treatment with a temperature between 350.degree. and 450.degree. C., a Ni--Al-based alloy is formed at the overlapping portion. Therefore, even when a surface protection film of silicon nitride is subsequently formed by plasma CVD on the substrate, the alloy prevents the nitriding of the upper end portion of the aluminum wiring metal. Accordingly, the surface can be protected from moisture by the silicon nitride film without increasing the contact resistance between the magnetoresistive element thin film and the wiring metal. Instead of the Ni--Al-based alloy, other conductive metals such as TiW, TiN, Ti, Zr, or the like may be used. Also, the surface protection film may be a multi-layered film having a first film containing no nitrogen, such as a silicon oxide film, and a second film of silicon nitride film formed on the first film.
摘要:
A product design CAD data reconstruction unit 50 reconstructs product design CAD data used for product evaluation regarding an initial design so as to fulfill restrictive conditions obtained from the product evaluation based on a product structure for the initial design. The reconstructed product design CAD data is stored in a product design CAD data database 90. Upon reception of a corrected design obtained by correcting the initial design, the product design CAD data for the initial design is read from the product design CAAD data database 90, and the product design CAD data is corrected along a design surface of the corrected design.
摘要:
A prober can make an appropriate evaluation in a microcurrent region. A wafer (9) is disposed on a chuck (8) in a casing (1). In the upper surface of the chuck (8), an electrode (8a) is formed which is connected to a power supply (11) via a wire (10). In the casing (1), a cylindrical electromagnetic shielding box (7) is disposed with the upper surface open. The upper surface of the casing (1) and the side surfaces and bottom surface of the electromagnetic shielding box (7) form a closed space (30) for surrounding the chuck (8) and the wafer (9). Also, a loader (6) for driving the chuck (8) and the electromagnetic shielding box (7) is disposed in the casing (1). On the upper surface of the casing (1), a tester head (3) is disposed with a probe card (4) disposed therein. Since part of the upper surface of the casing (1) is open, probe needles (5) of the probe card (4) protrude into the casing (1) through the opening.
摘要:
Two or three trenches are formed in a silicon substrate, and a conductive layer is formed in the silicon substrate facing the trenches. An oxide film for insulation is formed on a surface of the conductive layer facing the trenches. The trenches are filled with polysilicon, and the conductive layer and the polysilicon constitute a capacitor through the oxide film. Since this capacitor has two or three trenches, an effective area sufficiently large for increasing a capacitance value of the capacitor can be obtained without increasing the plane area of the device. The conductive layer and the polysilicon are connected to aluminum interconnection layers through a silicide layer, so as to be connected to other integrated circuits.
摘要:
A factory layout includes a plurality of substantially triangle units provided in radial directions. The triangle units are combined so as to form a polygonal shape including a triangle shape as a whole. The empty regions with an air-conditioning facility are provided at a part of the central portion of the polygonal shape.