14 results about "White Spots" patented technology

This application provides an isolation structure and its manufacturing method. The isolation structure includes a substrate, an isolation trench, a flexible dielectric layer, and a filling layer located within the substrate. The flexible dielectric layer is made of hydroxyl-para-xylene. The filling layer covers the surface of the flexible dielectric layer and fills the isolation trench. This flexible dielectric layer can reduce cracks caused by excessive stress in subsequent thermal processes and can adapt to spatial distortion caused by the expansion of residual gas in the isolation trench through deformation under thermal conditions, reducing damage to the substrate, enhancing the electron coupling ability of the HiK material, improving the yield of devices on the substrate, and reducing dark current in devices and white spots in display images from the source. In addition, this flexible dielectric layer does not contain metal, so it will not cause metal ion contamination to the substrate. It eliminates the need for an additional isolation layer, improving the performance of devices on the substrate while simplifying device structure and processes and reducing manufacturing costs.

The present application relates to the technical field of image detection, and more particularly to a weakly supervised intraoral photo detection and segmentation method for early caries. The method comprises the following steps: step 1: performing color standardization on an intraoral photo to obtain a color-standardized intraoral photo, and extracting an edge response map; step 2: in the tooth surface region mask, when the foreground and the background compete simultaneously, first comparing the average value of the edge response map sharing the edge, and then confirming by adjacency majority; traversing until there is no new attribution in the two queues, and outputting a pseudo-label mask; step 3: training a segmentation network jointly supervised by the pseudo-label mask and a small amount of pixel-level labeled samples, for detection and segmentation of white spot caries and hidden caries. The present application can effectively reduce the cost of manual labeling, reduce the false detection and missed detection caused by mirror reflection and noise, and improve the boundary fitting degree and cross-sample stability.

This invention discloses a process for removing surface defects from 4J42 constant expansion precision alloy during hot rolling, comprising the following steps: rough rolling and softening heat treatment: the hot-rolled 4J42 alloy billet is cold-rolled to an intermediate thickness, followed by softening heat treatment to transform the material into a soft state. At this time, the surface oxidation defects generated during hot rolling are transformed into edge white spots; soft state multi-pass wire drawing treatment: the soft strip is subjected to two abrasive wire drawing treatments to remove edge white spots and make the wire drawing marks on the surface of the soft strip uniform; texturizing roll cold rolling finishing: the wire-drawn strip is subjected to multi-pass cold rolling to the finished thickness, wherein at least in the first two rolling passes, texturizing rolls are used to eliminate wire drawing marks and obtain a uniform finished surface. This invention can solve the problems of existing processes being unable to completely remove pit and white spot defects on the surface of precision alloys, resulting in low production efficiency and high material loss.

The application provides a method for improving the white spot defect of a crystalline silicon wafer in a post-oxidation process, which comprises the following steps: (1) wafer loading; (2) first ozone purification; (3) temperature rising; (4) first vacuum pumping; (5) second ozone purification; (6) post-oxidation; (7) second vacuum pumping; (8) pressure recovery; (9) temperature falling; and (10) wafer unloading. The method utilizes ozone with strong oxidizing property to purify the air in a furnace tube, improves the cleanliness of the environment atmosphere in the post-oxidation process, reduces the proportion of pollutants in the furnace tube, and further effectively reduces the proportion of the white spot defect of the crystalline silicon wafer. The method is simple in operation, low in requirement for equipment, low in processing cost, and has a large-scale application prospect.

This invention provides a method for simulating white spot transfer using a roller heat press, comprising a flatbed heat press. By increasing the air permeability around the transfer paper in the flatbed heat press, the number of white spots after transfer is increased. Compared with the prior art, this invention, by changing the air permeability around the transfer paper, enables the transfer effect on the flatbed heat press to be close to that of a roller heat press. This allows white spots that can appear on a roller heat press but not on a flatbed heat press to be transferred using a flatbed heat press, allowing transfer paper manufacturers to adjust their processes and improve their transfer paper in a timely manner.

This application provides an apparatus and method for suppressing white spots on the back of a wafer during epitaxy. The apparatus for suppressing white spots on the back of a wafer during epitaxy is optimized. The apparatus includes a graphite disk, a cyclone tray, a support, and a gas supply device. The top of the graphite disk is used to place the substrate, and the graphite disk has through-holes. The cyclone tray is located at the bottom of the graphite disk. The support supports the graphite disk, creating an airflow space between the graphite disk and the cyclone tray, which is connected to the holes. The cyclone tray can rotate the graphite disk via the support. The gas supply device generates airflow into the airflow space, making the pressure on the lower surface of the substrate lower than the pressure on the upper surface, generating a Bernoulli effect. This ensures the substrate and the graphite disk are fully bonded, reducing the probability of epitaxial growth gas contacting the lower surface of the substrate. This solves the problem of white fogging on the back side caused by epitaxial gas entering the carbon surface of the substrate and participating in the reaction, thereby improving the yield of the epitaxial wafer.

This application provides a display device, relating to the field of display technology. In the display module, the display panel includes opposing light-emitting and non-light-emitting surfaces. A backlight is disposed on the non-light-emitting surface. A flexible circuit board is electrically connected to the display panel, and the flexible circuit board includes a first connecting portion bent to the side of the backlight away from the display panel. A middle frame is disposed on the side of the backlight away from the display panel, and the middle frame includes a through-hole. The first connecting portion extends from the side of the middle frame near the display panel, through the first opening, to the side of the middle frame away from the display panel. A heat sink is disposed between the backlight and the first connecting portion. The orthographic projection of the heat sink on the display panel does not overlap with the orthographic projection of the first opening on the display panel. The heat sink avoids the first opening, creating a larger bending space, which can buffer the stress caused by bending through the hole, helping to avoid squeezing the backlight and thus improving white spot or white patch problems.

This utility model discloses a reflective structure for an LED backlight module that improves white spot appearance, including an LED backplate; a metal frame: LED light strips are installed on the inner side of the metal frame along its length; a light guide module: the light guide module is used to enhance and diffuse the light emitted by the LED light strips, and includes a reflective film, a white single-sided adhesive pad, a light guide plate, and a functional film assembly. The reflective film is fixedly bonded to the top of the LED backplate, and a light guide plate is arranged parallel to it above the reflective film. The light guide plate and the reflective film are separated by a white single-sided adhesive pad, leaving a gap between them. The functional film assembly is fixedly installed on the upper part of the light guide plate. The light guide module is located in the cavity enclosed by the LED backplate and the metal frame. This invention improves the white spot appearance problem by adding a white single-sided adhesive pad between the light guide plate and the reflective film, creating a gap between them. During reliability testing, foreign objects have a buffer space inside, preventing direct friction damage to the light guide plate.

This application discloses a method for controlling white spot defects and a vacuum arc remelting device, belonging to the field of vacuum arc remelting technology. Its main purpose is to achieve real-time identification of electrode shavings and to adjust the power differentially based on the size of the shavings, thereby improving the control effect of white spot defects during the vacuum arc remelting process. The main technical solution of this application is as follows: The white spot defect control method includes: acquiring vacuum arc remelting process parameters; identifying shavings and determining the equivalent size of the shavings based on the process parameters; generating control commands based on the correspondence between the equivalent size of the shavings and at least two determined critical sizes; and adjusting the melting power of the vacuum arc remelting device in response to the control commands.

The application discloses a vocal cord white lesion diagnosis method and system based on a pre-training large model and attention transfer, and relates to the technical field of medical image processing and artificial intelligence auxiliary diagnosis. Frames are extracted from a laryngoscope video, a standardized image dataset is constructed, and a pre-trained visual backbone network is used to extract multi-scale features, and an exogenous probability heat map is generated as visual prior by means of a multi-modal medical basic model. By calibrating the prior to the attention domain and aligning it with the internal attention of the network, the model is guided to focus on the lesion area. A two-stage classification strategy is adopted, first screening "cancer" and "non-cancer", and then subdividing "non-cancer" lesions into "special infection or inflammation", "vocal cord white spot-low risk" and "vocal cord white spot-high risk", and improving robustness through ensemble learning. The system synchronously outputs an interpretable heat map and a structured diagnosis conclusion, and supports clinical interaction. It effectively improves the consistency of diagnosis, clinical applicability and work efficiency.

The utility model discloses a kind of mobile phone lens non-touch dustproof installation suction pen, and it is related to mobile phone assembly tool field.The mobile phone lens non-touch dustproof installation suction pen includes vacuum generator fixedly connected on compressed gas pipeline, vacuum generator is fixedly connected with trachea, trachea is screw-connected with hand-held part, and the bottom of hand-held part is screw-connected with suction disc.The mobile phone lens non-touch dustproof installation suction pen realizes that operating personnel can be quickly extracted and accurately installed to mobile phone specified position without contacting lens, fundamentally avoids the dirt problem such as white spot, hair due to hand contact, greatly improves the yield of lens, effectively reduces production cost.Secondly, it is simple in structure, convenient to operate, reduces unnecessary process and material waste, improves production efficiency.In the factory of higher dustproof environment requirement, the tool can stably and reliably run.

This invention relates to the field of image recognition, and more particularly to an image recognition method for the health status of marine aquaculture fish. First, based on the acquired raw RGB color image, instance-level segmentation is performed to obtain the category label, confidence score, and pixel-level binary mask for each fish instance. Based on the confidence score, a confidence score filtering process is performed. After obtaining the fish instances that pass the confidence score filtering, image preprocessing is performed to obtain a normalized color vector and a preprocessed RGB color image. Then, based on the normalized color vector and the preprocessed RGB color image, a posture-sensitive morphology-color joint health index extraction algorithm is used to obtain a health-sensitive feature index. Finally, based on the health-sensitive feature index, a judgment result is obtained. This method solves the technical problems of morphological indicators becoming ineffective due to fish posture distortion, the inability to quantify abnormal color features such as red spots and white spots, and the impact of fish species differences on the universality and accuracy of the assessment results.

This invention provides an image forming apparatus that can accurately determine the lifespan of a reused developing unit. [Solution] When it is detected that the replaced developing unit is a reused item (YES in S2), the deterioration estimation mode is performed. When the deterioration estimation mode is performed, a background stain detection image and a white spot detection image are formed on a predetermined sheet of paper as deterioration state detection images to understand the deterioration state of the replaced reused developing unit (S13, S14). The background stain detection image and white spot detection image formed on the predetermined sheet of paper are read by an inline sensor, and the deterioration state of the replaced reused developing unit is estimated based on the read background stain detection image and white spot detection image (S15, S16). Then, the remaining lifespan of the replaced reused developing unit is set based on the estimated deterioration state.