摘要:
The present invention relates to an alignment mark for use in a wafer alignment and a method for fabricating the same. The alignment mark for use in the wafer alignment includes: a first mark formed on a semiconductor layer; a second mark formed adjacent to the first mark on the semiconductor layer; and a concave part formed between the first mark and the second mark by etching a partial portion of the semiconductor layer, wherein the alignment mark is used to align a wafer by detecting a zeroth order diffract light reflected from a sloped surface formed because of a difference in height between the concave part and the first or second mark.
摘要:
The present invention relates to a structure for oxygen sensor of vehicles, having a fixture, a ceramics base, an oxygen sensing device, a ring binder and a pipe shroud, wherein the pair of tenons inside the fixture are inlaid into the ring binder's side fillisters. The ring binder is then rotated to have the tenons fit into the positioning fillisters so as to connect the fixture tightly with the ring binder. Finally, the ring binder is covered by a pipe shroud. With the revolving-to-stuck mechanism implemented on the joints between the fixture and the ring binder, it is convenient to repair or replace bad components during tests without damaging the fixture.
摘要:
An elevator car position measuring system includes a strip having a code mark pattern mounted near the elevator car and parallel to a travel direction, a code reading device mounted on the elevator car for contactless scanning of the code mark pattern and an evaluating unit connected to the code reading device for evaluating the scanned code mark pattern. A code word is formed by nullnnull successive code marks of the code mark pattern, a plurality of different ones of the code words are unambiguously arranged in an n-digit pseudo random sequence, the code words form a single-track of the code mark pattern and each of the code words represents an absolute car position. A floor sensor mounted on the elevator car detects position markings at floor levels along the travel direction and is connected to the evaluating units for evaluating the detected position markings against said scanned code words.
摘要:
The present invention relates to a method for manufacturing a probe for detecting surface signals or chemical signals through a long and slender rod-shaped nano structure such as tungsten nanowire, carbon nanotube, boron nanotube, etc., being attached to a tip end portion thereof. According to the method, a holder, acting as the probe, including a first electrode to which the rod-shaped nano structure is attached, and a second electrode at a predetermined distance from the first electrode are partially or fully immersed in a solution containing the rod-shaped structure. When a voltage is applied between two electrodes, an electrical field is generated, and the rod-shaped nano structure is attached to the holder, acting as the probe.
摘要:
A wall fastener locating and marking tool including a generally elongate vertical member having an upper end, a lower end; a generally elongate horizontal bar attached to the upper end of the vertical member and substantially normal to the vertical member; a handle portion, and a marking tool assembly releasably connected to the vertical member and vertically slidable along the vertical. The marking tool assembly has a marking tool tip protected by a depressible collar and includes retention means for bearing an object by its wall fastener hardware during the locating, marking, and installation of the object.
摘要:
A method for fitting a putter club to an individual golfer comprising the steps of having the golfer assume a position in which his hips are directly above his heels, his eyes are directly above the ball to be putted and his hands are directly below his shoulders and forward of his legs and measuring the distance from the crease between his palm and wrist to the ground adjacent of the ball.
摘要:
A tractor-trailer highway parameter gauge having visual indicators near the center of the field of view of an operator, which correlate with the location of the rearwardmost portion of the tractor-trailer within a traffic lane. The parameter gauge comprises a horizontally disposed base, a first electrically illuminated visual indicator mounted upon a first bracket assembly that is fastened to the base, a second electrically illuminated visual indicator mounted upon a second bracket assembly that is fastened to the base, an electrical component housing operatively connected to the first and said second visual indicators, and an electrical power supply connected to the electrical component housing. The parameter gauge enables safer operation of a tractor-trailer on a public highway.
摘要:
To provide a rotation angle detector with high detecting accuracy for use in association with a steering wheel on a vehicle and the like, a rotation angle detector is constructed by providing a recess surrounding a shaft portion in a top face of a detecting member and extending a shaft support, formed on an upper cover, into the recess.
摘要:
A leveling and marking tool for accurately marking a pair of points on a horizontal or vertical line on a work surface or building wall that are exact to match the precut holes found on many items mounted, comprising an elongated rectangular bar, a longitudinally extending guide track, a first and second cone shaped point, and at least one bubble gauge.
摘要:
The invention relates to a position measuring system for scanning a movement between a first element and a second element which is arranged in a moveable manner in relation to the first element. Said system comprises a material measure which can be fixed to the first element and has a scale carrier, and a scanning head which can be fixed to the second element and which scans a movement of the material measure in relation to the scanning head. The inventive system comprises a mount by which means the material measure and the scanning head can be fixed to each other in a pre-determined position, the scanning head being detachably fixed to the scale carrier. In order to assembly one such position measuring system on a first element and a second element moving in relation thereto, the scanning head is fixed to the material measure in such a way that the scanning head and the material measure are mutually fixed in position. The material measure is then applied to the first element and the scanning head to the second element, the scanning head or the material measure being fixed to the respective element, filling the gap, in the position which is pre-determined by the positioned mount. The mount between the scanning head and the material measure is then detached.