7results about How to "Improve contour" patented technology

There is provided a semiconductor device including: a substrate having an active region formed thereon; a gate stack on the active region; a circuit wiring disposed over the gate stack; and a contact via structure on a side surface of the gate stack and between the active region and the circuit wiring, in which the contact via structure includes: a gate contact via extending between the circuit wiring and the active region; a first contact insulating film covering a portion of a side surface of the gate contact via and exposing a remaining portion of the side surface; and a second contact insulating film covering a portion of a side surface of the first contact insulating film, exposing a remaining portion of the side surface, and exposing a remaining portion of a side surface of the gate contact via.

The invention provides a preparation method of a back-illuminated image sensor, and the method comprises the steps: carrying out the first cutting of a first substrate, and carrying out the bonding of the first substrate and a second substrate; step supplementing layers are formed on the side surface of a first-stage step, the upper surface and the side surface of a second-stage step and the upper surface of a third-stage step in the three-stage step structure at the edge of the first substrate, so that the upper surface of the step supplementing layer on the second-stage step is flush with the upper surface of the first-stage step; in this way, the outline and the shape of the edge of the first substrate are optimized, so that after the first substrate and the second substrate are bonded, no gap exists between the edge of the logic area on the first substrate and the edge of the second substrate, the situation of edge breakage caused in the second cutting process of the first substrate is avoided, and the yield of the first substrate is improved. The number of effective Die at the edge of the first substrate is ensured, and the yield of products is improved.

The invention relates to the technical field of tire manufacturing, and discloses a tire side bulge prevention structure of an all-steel agricultural radial tire and a preparation process of the tire side bulge prevention structure. The tire sidewall bulge prevention structure comprises a tire sidewall area which is sequentially provided with a lining layer, an irradiation tire body reinforcing rubber sheet and a tire body cord fabric from the inner side to the outer side, the preparation process comprises the following steps: S1, preparing a rubber composition film; s2, preparing an irradiation tire body reinforcing rubber sheet; s3, the irradiation tire body reinforcing rubber sheet is precisely attached to the designated position of the outer surface of the lining layer; s4, a carcass ply is attached to the outer side of the irradiation carcass reinforcing rubber sheet; and S5, carrying out integral molding, shaping and vulcanization on the tire. By adopting the technical scheme that the high-energy electron beam is adopted to irradiate the pre-vulcanized reinforced rubber sheet and the rubber sheet is precisely positioned and attached, rigid support is provided for the tire body cord fabric, the stress distribution is homogenized, and the problems that local bumps on the sidewall are eliminated, and periodic bumps and recesses are easy to appear from a pattern groove to the sidewall position when the tire is inflated and loaded are solved.

The invention provides a photoresist structure, a semiconductor element comprising the photoresist structure, and a preparation method of the semiconductor element comprising the photoresist structure. The photoresist structure comprises a lower photoresist layer; and an upper photoresist layer disposed on the lower photoresist layer. A thermal expansion coefficient of the upper photoresist layer is greater than a thermal expansion coefficient of the lower photoresist layer.

This invention discloses an intelligent visual prosthesis system and encoding method. The system includes an external sensing processing unit and an internal implanted stimulation unit. The external sensing processing unit includes at least an environment sensing unit and a first data processing unit, and the internal implanted stimulation unit includes at least a stimulation signal generation unit and an electrode array. The environment sensing unit is used to acquire a target image. The first data processing unit is used to match the current scene to a preset lighting scene mode according to the image features or ambient illuminance of the target image, independently configure anchor points for the corresponding image grayscale value boundaries for the matched lighting scene mode, and generate a grayscale-charge density mapping relationship corresponding to the lighting scene mode. Then, the grayscale value of each pixel of the target image is mapped to the corresponding target charge density, and a stimulation command is generated and output to the stimulation signal generation unit. The stimulation signal generation unit is used to generate an electrical stimulation pulse sequence according to the stimulation command and a preset reference pulse width and output it to the electrode array.

The invention relates to the technical field of aviation aircraft design, and discloses a variable camber wing based on a bistable composite material structure driving multi-section rotation, which comprises a wing leading edge structure, a multi-section rotation rigid skin, an internal truss structure connected with the multi-section rotation rigid skin, a bistable composite material driving structure and a transmission mechanism, the bistable composite material driving structure is arranged between the rigid skin hinge and the transmission mechanism; and the transmission mechanism is arranged between the truss structure in the rigid skin and the sliding chute of the wing leading edge structure. The control precision and reliability are improved through relative change of the three rigid wings, and the problems that in the prior art, the structure is complex, the weight is large, the actuation efficiency is low, and the bearing capacity is low are solved.

The application discloses a low-light image enhancement method and device based on wavelet transform and a medium, and relates to the technical field of image processing.The method comprises the following steps: acquiring a to-be-processed image; performing preliminary feature extraction on the to-be-processed image by using a first convolution module to obtain to-be-processed image features; performing high-order curve iterative adjustment on a brightness channel of the to-be-processed image by using an illumination adjustment module to obtain a multi-channel illumination map; performing multi-branch multi-scale feature extraction and fusion on the to-be-processed image features and the multi-channel illumination map by using a structure prediction module to obtain a structure prediction map; performing bidirectional wavelet transform decomposition on the structure prediction map by using a detail repair module, weighting a spatial and channel attention mechanism, and then performing inverse bidirectional wavelet transform reconstruction to obtain a detail repair map; and performing performance activation and dimension reduction on the detail repair map by using a dimension reduction activation module to obtain an enhanced image of the to-be-processed image.The application realizes effective enhancement of a low-light image.