32results about How to "Guaranteed height difference" patented technology

The invention belongs to the field of manufacturability design of semiconductors and particularly relates to a dummy comprehensive optimization method based on a CMP simulation model for the copper-connection dummy metal filling technology. According to the method, the height morphology of the surface of a chip after undergoing CMP is obtained through full-chip CMP simulation, and an effective hot spot region with intense height changes is obtained; step-by-step dummy filling and fast CMP simulation of local regions are carried out iteratively in the effective hot spot region to gradually eliminate hot spots; finally, it is assured that no effective hot spot exists through the full-chip CMP simulation. Compared with a dummy comprehensive method based on rules, the dummy comprehensive optimization method based on the CMP simulation model can ensure that the height deviation of a layout after dummy filling and the CMP is within a given deviation threshold, and the dummy filling amount is small. Experiments show that in the same filling amount, the mean-square error ratio of the height morphology obtained respectively through the SMDF dummy filling method and the FMF dummy filling method is 58% smaller than that of the height morphology obtained through the dummy filling method driven by density, and the dummy comprehensive optimization method based on the CMP simulation model has obvious advantages.

The invention discloses an automatic water level control switch of a water supply system, and belongs to the field of water supply. The water level control switch is arranged on a fixed plate, a hole is formed in the middle of the fixed plate, and a lifting part is fixed to the fixed plate. A floating part is arranged on the lower portion of the fixed plate. A spring sheet is arranged on the upper portion of the lifting part. The lifting part comprises a fixed barrel and a lifting pipe in the fixed barrel. The floating part comprises a sealed bucket fixed to the lower face of a bottom plate, a gravity floating body is arranged in the bucket, and a connecting rod in the vertical direction is fixed to the gravity floating body. When the water level rises, the connecting rod drives the lifting pipe to ascend, a top plate triggers the spring sheet, and the switch is switched off. When the water level drops, a pressing plate on the connecting rod presses the spring sheet, and the switch controls a water pump to run. By means of the switch, human resource cost can be reduced, personnel do not need to attend during water filling, the manufacturing cost of the water supply system can be reduced, and use and popularization are convenient. In addition, an original high-pressure water supply switch is changed into the automatic water level control switch, an external water source is preferably used for automatically supplying water into a water tower or water tank, and the expenses of families of farmers can be reduced.

The present invention relates to a color film substrate, a manufacturing method thereof, and a display device. The color film substrate comprises m columns of list-structured sub-pixels and n columns of island-structured sub-pixels, wherein m>=1, and n>=1; a first black matrix is disposed between the adjacent rows of the list-structured sub-pixels, and the list-structured sub-pixels cover the first black matrixes; a second black matrix is disposed between the adjacent rows of the island-structured sub-pixels; main spacers are arranged on the list-structured sub-pixels on the first black matrixes; and the auxiliary spacers are arranged on the second black matrixes. According to the technical scheme, the main spacer and the auxiliary spacer having the same height can be formed through the same equipment or technology, due to the fact that the base of the main spacer is higher than the base of the auxiliary spacer, an upper surface of the main spacer is higher than an upper surface of the auxiliary spacer, so that the technology of manufacturing the main spacer and the auxiliary spacer is simplified when the height difference between the upper surfaces of the main spacer and the auxiliary spacer is ensured.

The invention belongs to the technical field of agricultural machinery, and relates to a pneumatic type precise corn no-tillage planter. The pneumatic type precise corn no-tillage planter comprises a fan (1), a fan rack (2), a fertilizer box (3), a three-point hanging mechanism (4), an active anti-blocking mechanism (7), a general stander (8), a parallel four-connection-rod seeding mechanism (9), an air pressure distribution pipe (5) and a depth control mechanism (6), wherein the four-connection-rod seeding mechanism (9) further comprises a tension spring adjustment ring (29), a stop piece (37) and a lower parallel four-connection-rod limiting mechanism (38); and the depth control mechanism (6) comprises a depth control mechanism mounting plate (46), a depth control mechanism rotating shaft (47), a spring fixing pin (48), an adjustment spring (49), a depth control mechanism adjustment handle (50), a limiting plate (51), a depth control wheel (52), a first depth control mechanism bevel gear transmission box (17) and a second depth control mechanism bevel gear transmission box (56). The planter integrates the active anti-blocking mechanism, a pneumatic type planter and seeding profiling.

The invention discloses a sticky coal blending combustion bi-directional feeding device and belongs to the field of sticky coal blending combustion feeding devices. The sticky coal blending combustion bi-directional feeding device comprises a coal bunker, two discharging ports are symmetrically formed along the axis of a bottom plate of the coal bunker, the lower portion of each discharge port is connected with a coal dropping pipe, and the bottom ends of the two coal dropping pipes communicate with each other. A splitter plate is arranged above the two discharging ports, and the two ends of the splitter plate are fixed to the side walls of the coal bunker. The coal bunker is internally provided with a rotary cutting body, the rotary cutting body comprises a base body and three cutters symmetrically arranged along the center of the base body, a power system is arranged below the center of the bottom plate of the coal bunker, and the power system is connected to the center of the base body. Materials in the coal bunker are alternately pushed by the rotary cutting body into the coal dropping pipes, the space for original materials is supplemented with materials on the upper portion under the action of gravity, first come first go of the materials is achieved, linking control is matched, a feeding device channel is kept smooth all the time, the materials come while the other materials go, and quantitative blocking preventing is achieved.

The invention relates to an automobile front upper component assembly structure which comprises a front upper component body, a radiator upper mounting plate connected to the rear surface of the frontupper component body, a front bumper right mounting bracket, a front bumper left mounting bracket and a front collision cross beam; the middle of a middle beam is connected with the middle of the front lower edge of the front upper component body through a connecting plate; the upper end of a middle cross beam support is vertically connected with the middle part of the middle cross beam, and thelower end of the middle cross beam support is vertically connected with the middle part of the front collision cross beam; a right mounting bracket and a left mounting bracket which are used for mounting a through type front transverse lamp are arranged on the middle cross beam; and the front bumper right mounting bracket and the front bumper left mounting bracket are respectively connected between the front upper component body and the middle cross beam. The structure has the function of mounting a front bumper, a front cover lock and a radiator, also has the function of mounting the through-type front transverse lamp, and ensures that the through-type front transverse lamp and the left and right headlamps meet the requirement of matching design tolerance.

The invention provides a track mounting structure, which can guarantee height difference of a track in stopping and rotating and the normal position of a heated glass bar placed on a molding press die, and enables the heated glass bar to enter the die accurately and easily. The track mounting structure comprises a track which is supported on a support through track wheels on two sides, and the track wheels are connected with a power transmission device. The track mounting structure is characterized in that a pawl-ratchet structure is arranged on the side of one of the two track wheels.

The embodiment of the invention provides a silicon wafer processing device and method. The silicon wafer processing device comprises an annular mold, a polishing head and a mold pad, wherein the polishing head includes a central control area and an edge area arranged around the central control area, and the edge area of the polishing head is attached and connected to the axial end face of the annular mold; the central control area of the polishing head is provided with an adjustment structure; the mold pad is located in the annular mold and is arranged in a mode of being independent from the annular mold, the first end face of the mold pad is attached and connected to the adjustment structure, the adjustment structure is used for driving the mold pad to move towards a first direction or asecond direction opposite to the first direction along the axial direction of the polishing head to adjust the height difference between the annular mold and the mold pad, the second end face, which is opposite to the first end face, of the mold pad forms an accommodating space with the inner wall of the annular mold, a silicon wafer is arranged in the accommodating space, and the first end face of the silicon wafer is attached and connected to the second end face of the mold pad. Therefore, the phenomenon of edge tilting or edge collapse of the silicon wafer in the grinding process can be prevented, and the flatness of the silicon wafer is improved.

The invention belongs to the technical field of food, and particularly relates to a petal extract mooncake and a preparation method thereof. The petal extract mooncake comprises a wrapper material and stuffing containing petal extracts. The petal extract is prepared by water extraction, organic phase extraction and fractionation drying, and dried organic extraction powder is collected and mixed with water extraction powder; the preparation method comprises the following steps: chopping and sieving raw materials to obtain a primarily crushed material, wrapping the primarily crushed material with gauze, performing steam smoking and cooking, blending the primarily crushed material with mung bean paste, pullulan, eggs and a petal extract to obtain stuffing, making the stuffing and a wrapper bag into a rough blank, pressing the rough blank into a moon cake blank through a mold, putting the moon cake blank into an oven, and performing low-temperature baking to obtain the moon cake. And heating and baking, and cooling to obtain the moon cake product. Petal active substances dissolved in water and ethanol are separated from solids through an ultrasonic atomization technology, the petal extract is obtained after condensation, and the fragrance and taste of the mooncake can be effectively improved by adding the petal extract into the mooncake.