46results about How to "Prevent side erosion" patented technology

A method of manufacturing a laminated structure capable of being patterned into a favorable shape by preventing side etching is provided. After an adhesive layer made of ITO or the like, a reflective layer made of silver or an alloy including silver, and a barrier layer made of ITO or the like are laminated in order on a substrate with a planarizing layer which is a base layer in between, a mask is formed on the barrier layer, and the adhesive layer, the reflective layer and the barrier layer are etched at once by using the mask to form a laminated structure. As an etching gas, for example, a gas including methane (CH₄) is preferable. The laminated structure is used as an anode, and an insulating film, an organic layer including a light-emitting layer and a common electrode as a cathode are laminated in order on the laminated structure so as to form an organic light-emitting device. The laminated structure can be used as a reflective electrode, a reflective film or wiring of a liquid crystal display.

A display panel and a display apparatus are provided. The display panel comprises a substrate including a display region and a non-display region; a display element disposed in the display region of the substrate; and at least one bank disposed in the non-display region of the substrate and surrounding the display region. The at least one bank comprises at least one inorganic layer and at least one metal layer, and the at least one inorganic layer encapsulates the at least one metal layer.

The invention provides a high-stability OLED device and a preparation method thereof. The high-stability OLED device comprises a substrate and a packaging cover plate 10, wherein the substrate is divided into a pixel region and a packaging region; the substrate and the packaging cover plate are connected through a sealing medium; a first electrode layer, an organic light-emitting layer and a second electrode layer are overlapped on the pixel region on the substrate; and a buffer layer is arranged between the first electrode layer and the substrate. Through the arrangement of the buffer layer,the lateral erosion phenomenon caused by dry etching of the auxiliary electrode layer is solved, and meanwhile, metal ions of the glass substrate are blocked from permeating into the first electrode layer, and electrochemical corrosion is avoided; by adding the auxiliary electrode, the brightness uniformity of a screen body is improved; a pixel defining layer is simultaneously arranged on the first electrode layer and the auxiliary electrode layer and is in direct contact with the buffer layer, so that a very good surrounding structure is formed for an effective pixel region and/or pixels of the OLED, volatile gas outgas is prevented from being released into the pixels to cause pixel shrinkage, and the reliability of the screen body of the OLED is improved.

This invention relates to a new type of mask used in glass etching and its application in it, in which, said new mask includes at least two layers of structures, one is mask material, the other is a glue layer, the mask material is placed above the glue layer and connected with an etched glass via the glue layer, said new mask can be bond on the etched glass stably and not easy to be corroded by acid and the mask is fixed in the etching of glasses.

The invention relates to a process for manufacturing a single-layer multi-point capacitive touch screen with a pure ITO membrane structure and belongs to the technical field of touch screen manufacturing. The process sequentially comprises the steps of the cutting of an ITO membrane of a predetermined dimension, ageing, coating, exposure, developing, etching, membrane striping, insulating printing, silver paste printing and baking. The pure ITO membrane is adopted to serve as a raw material; compared with the adoption of a copper plating ITO membrane for a traditional yellow light process, a copper etching process is omitted, original partial printing of silver paste jumpers is modified into silver paste printing of a whole metal layer, silver wires are utilized to replace copper wires, the lateral erosion problem of copper etching is avoided, and chemicals used for etching and lateral erosion restraint are saved. In the aspect of the process, a manufacturing process is simplified, resources in the aspects of manpower, energy and auxiliary materials can be saved, and the rejection rate is reduced.

The invention discloses a manufacturing method of an ultra-precision circuit. The method comprises the following steps that: S1, an outer-layer circuit is manufactured on an outer-layer copper surfaceof a production board through a negative film process, and it is ensured that the thickness of the outer-layer copper surface is smaller than a circuit copper layer thickness required by design; S2,a film is pasted on the production board through a positive film process, and exposing and developing are performed sequentially, so that an outer-layer circuit pattern is formed, and the outer-layercircuit manufactured in the step S1 is exposed; S3, the copper layer thickness of the outer-layer circuit on the production board is made to be the circuit copper layer thickness required by design through pattern electroplating; and S4, finally, the film is removed. According to the method, the ultra-precise circuit can be manufactured by adopting a mode of combining the negative film process andthe positive film process; and the problem that the ultra-precise circuit cannot be manufactured due to side etching and side electroplating in a conventional circuit process is solved.

The invention provides a metal wire manufacturing method and a metal wire isolating method. The method comprises the steps that 1) an anti-reflection layer is formed on a metal layer; 2) a photoresistlayer is formed on the anti-reflection layer, and an etching window is formed in the photoresist layer; and 3) a halogen-containing gas is used and an alkane-based gas is added to etch the metal layer to separate the metal layer into a number of metal lines. The alkane-based gas reacts with the halogen-containing gas to generate an auxiliary carbon halogen compound, so as to avoid the side etching of the sidewall of the metal lines and reduce the consumption rate of the photoresist layer during the etching process. According to the invention, the added alkane-based gas is used as the source of an etching aluminum by-product CClx, which can effectively reduce the etching rate of the photoresist layer; reduced line width of the metal lines and top damage, which are caused by insufficient residue of the photoresist layer, are avoided; side etching of the sidewall of the metal lines is avoided through the by-product CClx; and the overall width of the metal lines is the same as the targetwidth.

The invention aims to provides a photosensitive resin composition. The basic characteristics such as electrical insulation property are not destroyed. The photosensitive resin composition is exposed by a direct scanning device, the inner of the coating has a photo curing property and good sensitivity, the linear shape deterioration of a cured object is avoided, and excellent resolution is obtained. The photosensitive resin composition comprises (A) carboxyl containing photosensitive resin, (B) a polymerization initiator, (C) epoxy compounds, and (D) a coloring agent. The (B) polymerization initiator is represented by a formula, wherein in the formula, R1 represents H, a C1-C17 alkyl group, or a C1-C17 alkoxyl group, and R2 represents a phenyl group substituted by at least one of a phenyl group, a C1-C5 alkyl group, -O-CmH2m-CH3-, and -O-CnH2n-CpH2p-CH3, wherein m, n, and p all represent an integer from 1 to 5.

The invention discloses a manufacturing method of a printed circuit conductive circuit, and relates to the technical field of printed circuit board manufacturing. The method comprises the following steps: (1) growing a tin seed layer on the surface of a printed circuit insulating substrate; (2) covering the tin seed layer with a patterned dry film; (3) electroplating copper to form a copper conductive circuit; (4) removing the dry film; (5) carrying out heat treatment on the substrate obtained after the treatment in the previous step, so that the copper conductive circuit and the tin seed layer are co-melted into a whole; and 6) etching the tin seed layer to obtain a printed circuit conductive circuit. According to the method, the tin layer etching speed is high, the precision is high, thecircuit is complete and free of side etching, and manufacturing of a high-precision circuit board is facilitated; meanwhile, the copper and the tin are eutectic to form a uniform alloy layer, so thatthe stress between the metals is released, the local defect caused by inconsistent etching speeds of the tin seed layer and the copper conductive wire is prevented, the binding force of the conductive circuit and a bottom layer insulating medium is ensured, and the circuit pattern is good in heat resistance, high in stability and high in reliability.

The invention provides a semiconductor memory structure, which comprises a substrate, word lines, bit line contacts and bit lines, and is characterized in that a through channel is formed between every two adjacent word lines, each channel comprises a contact window and an inter-window groove, each inter-window groove is provided with a re-recessed surface relative to the contact window, and the re-recessed depth ranges from 5.8nm to 8.5nm, so that the adjacent bit line contacts are not electrically connected with each other; and the sum of the side etching depths of the bit line contact is indirect proportion to the re-recessing depth of the inter-window grooves in the extension direction of the word lines. The invention further provides another semiconductor memory structure, which is characterized in that the contact window in the channel is provided with a re-recessed surface relative to the inter-window groove, and the re-recessed surface is lower than the surface of an isolationstructure in the channel; and each bit line contact has a vertical sectioning profile in the extension direction of the word lines. By controlling the proportion of the etching agent gas or selectingdifferent etching agents, the problem of serious side etching of the bit line contacts due to the formation of the relatively low re-recessed surface of the inter-window grooves is effectively solved.

The invention provides a substrate and a preparation method thereof, and a display panel. The substrate comprises: a substrate; a first conducting layer which is formed on the substrate and patternedto form a first metal wire, wherein the first conducting layer is of a multi-film-layer structure composed of first metal and second metal, and the surface, away from the substrate, of the first conducting layer is a first metal film layer, wherein the first metal is not easy to etch, and the second metal is easy to etch; an insulating layer formed on the first conducting layer; and a second conducting layer which is formed on the insulating layer and is patterned to form a second metal wire and a first metal protection wire, and the first metal protection wire covers the side edge, which is not covered by the insulating layer, of the first metal wire. The first metal protection line is arranged on the side edge, which is not covered by the insulating layer, of the first metal line, so that the side edge, which is not covered by the insulating layer, of the first metal line is protected, the first metal line is prevented from being laterally etched in the etching process of the secondconducting layer, and the product reliability and the manufacturing yield are improved.

The invention discloses an etching solution, a touch panel and a manufacturing method of the touch panel, and the manufacturing method of the touch panel comprises the following steps: providing a substrate which is provided with a display region and a peripheral region; a metal layer and a metal nanowire layer are arranged, the first part of the metal nanowire layer is located in the display region, and the second part of the metal nanowire layer and the metal layer are located in the peripheral region; the patterning step comprises the steps that etching liquid capable of etching the metal layer and the metal nanowire layer is used for forming a plurality of peripheral leads on the metal layer and forming a plurality of etching layers on the second part of the metal layer at the same time, and the etching liquid comprises hydrogen peroxide (0.2-40 wt%), acid (0.2-20 wt%), a metal corrosion inhibitor (0.1-10 wt%) and/or a stabilizing agent (0.1-10 wt%). In addition, the invention also provides an etching solution and a touch panel. Patterning of the metal nanowire layer or the metal layer is directly carried out through the etching liquid, so that the purpose of simplifying the manufacturing process is achieved, and the manufacturing cost is further controlled.

The invention relates to a preparation method of a high-brightness infrared light emitting diode core and a diode core. The preparation method comprises the following steps of thinning a wafer, manufacturing an ohmic contact layer and an electrode layer, manufacturing an electrode pattern, cutting the diode core and coarsening to obtain an adhesive film, an N-surface electrode, a GaAs substrate, an epitaxial layer, an ohmic contact layer and a P-surface electrode from bottom to top in sequence. The epitaxial layer comprises the diode core of the N-type GaAs, the N-type limiting layer, the MQW quantum well layer, the P-type limiting layer, the P-type GaAs and the P-type GaP contact layer from bottom to top, the cost is greatly reduced, and the brightness is obviously improved.

The invention provides a manufacturing method of a thick copper circuit board, which comprises the steps of providing a copper-plated substrate which comprises a base material layer and a first copper layer, and etching the first copper layer to form a first circuit layer; covering the first circuit layer with a filler layer; performing laser ablation on the top layer of the filler layer to expose the first circuit layer; forming a metallized film on the upper surface of the filler layer; forming a second copper layer to the surfaces of the metalized film and the first circuit layer; and etching the second copper layer to form a second circuit layer. According to the manufacturing method of the thick copper circuit board, the filler layer and the metallized film are arranged on the first circuit layer, and the second circuit layer is formed by taking the first circuit layer and the filler layer as references, so that the purpose of thickening the copper layer is achieved, the pool effect can be inhibited, and lateral erosion is avoided. The invention further provides a thick copper circuit board.

The invention relates to the technical field of circuit board etching, in particular to an etching device of a printed circuit board for a new energy automobile, which comprises a bottom frame, a lifting structure is mounted on the bottom frame, the lifting structure is connected with a clamping structure, a liquid pumping structure is arranged on the lifting structure, and a heat preservation structure is mounted on the liquid pumping structure. The lifting structure is connected with an adjusting structure, a telescopic structure is mounted on the adjusting structure, and the spraying position can be well and accurately adjusted in the x-axis direction and the y-axis direction through the adjusting structure and the telescopic structure, so that each position of the circuit board can be accurately sprayed; in addition, etching is carried out in a spraying mode, lateral erosion can be effectively prevented, and compared with spraying of a spraying can, the device can etch different circuit boards all the time in a faster and more environment-friendly mode.

The invention discloses a process for manufacturing a graph in a circuit burying mode. The process comprises the following steps: pasting copper foils to the two sides of a carrier plate through an adhesive; attaching a dry film to the carrier copper foil, and manufacturing a to-be-plated pattern on the dry film; electroplating the carrier core plate to which the dry film is attached; taking downthe dry film on the carrier core plate plated with the copper layer; laminating the plurality of carrier core plates plated with the copper layers; separating the copper layer on the carrier core plate from the carrier plate; pressing the core plate after the carrier plate is taken out again; drilling a hole in the laminated core plate; cleaning and wetting the drilled hole; attaching dry films tothe surfaces of the two sides of the laminated core plate, and forming holes in the drilled positions of the core plate; carrying out metallization treatment on the holes in the dry film openings inthe core plate; and taking down the dry films on the surfaces of the two sides of the core plate. The method has the advantages that the etching side etching problem is avoided, the manufactured circuit better meets the design requirement, and the capacity of a factory for manufacturing a board with a finer circuit is improved under the condition that traditional PCB equipment conditions are not changed.