524results about How to "Improve etching effect" patented technology

The silica film forming material of the present invention comprises a silicone polymer which comprises, as part of its structure, CHx, an Si—O—Si bond, an Si—CH₃ bond and an Si—CHx- bond, where x represents an integer of 0 to 2.

In a plasma processing apparatus including a first radio-frequency power supply which supplies first radio-frequency power for generating plasma in a vacuum chamber, a second radio-frequency power supply which supplies second radio-frequency power to a sample stage on which a sample is mounted, and a matching box for the second radio-frequency power supply, the matching box samples information for performing matching during a sampling effective period which is from a point of time after elapse of a prescribed time from a beginning of on-state of the time-modulated second radio-frequency power until an end of the on-state and maintains a matching state attained during the sampling effective period from after the end of the on-state until a next sampling effective period.

The invention relates to a black surface treatment process of an electrolytic copper foil, belonging to the technical field of production processes of high and precision electrolytic copper foils. The black surface treatment process of an electrolytic copper foil is characterized in that a VLP (Very Low Profile) electrolytic copper foil of 8-12 mu m is used as an electrode, and then copper or copper alloy is roughened, solidified, weakly roughened and electrically deposited at a running speed of 25.0+/-0.1m/min; a layer of nano-scale nickel or cobalt alloy and a layer of nano-scale zinc alloy are sequentially and electrically deposited; and then alkaline chromate passivation is carried out and a layer of coupling agent is coated. In the invention, the black copper foil for an FPC (Flexible Printing Circuit) is obtained by carrying out a series of special surface treatments on the ultrathin and VLP electrolytic copper foil of 8-12 mu m, wherein the surface roughness Ra of the obtained copper foil is smaller than or equal to 0.30 mu m, Rz is smaller than or equal to 2.5 mu m; the thickness of the copper foil subjected to the surface treatments is increased by 1.40-1.80 mu m; the copper foil does not contain elements having serious damages to the human body, such as lead, mercury, cadmium, stibium, and the like and has excellent oxidation resistance as well as corrosion and etching resistance; the peel strength of the copper foil on a PI (Polyimide) film reaches higher than 1.0N/mm, and the folding strength on the PI film reach more than 100 thousand numbers of times; the copper foil has good appearance characteristics after the copper foil is microetched, and after the copper foil is made into an FCCL (Flexible Copper Clad Laminate), the copper foil has similar appearance characteristics to a rolled copper foil; and the properties of the copper foil product are equivalent to that of an electrolytic copper foil with the same specification for the FCCL.

The invention discloses a flexible substrate used for optoelectronic devices and comprises a flexible substrate; the invention is characterized in that a bonding layer and a conductive thin film are arranged on the surface of the flexible substrate; the conductive thin film is deposited on the surface of the bonding layer; and the material of the bonding layer is an adhesive with a double-curing system comprising UV curing-thermal curing or UV curing-microwave curing or UV curing-anaerobic curing or UV curing-electron beam curing. The substrate solves the problem of poor adhesion between the deposited conductive thin film and the substrate due to low surface energy of the flexible substrate and improves the barrier properties of the substrate on water and oxygen, and also achieves good smoothing effect on the surface of the substrate; besides, the preparation method is simple and effective, which can significantly reduce the substrate production cost and process difficulty and increase the substrate yield rate in the etching process.

The present invention relates to a method for producing a structure serving as an etching mask on the surface of a substrate. In this case, a first method involves forming a first partial structure on the surface of the substrate, which has structure elements that are arranged regularly and are spaced apart essentially identically. A second method involves forming spacers on the surface of the substrate, which adjoin sidewalls of the structure elements of the first partial structure, cutouts being provided between the spacers. A third method step involves introducing filling material into the cutouts between the spacers, a surface of the spacers being uncovered. A fourth method step involves removing the spacers in order to form a second partial structure having the filling material and having structure elements that are arranged regularly and are spaced apart essentially identically. The structure to be produced is composed of the first partial structure and the second partial structure.

The invention discloses a flexible substrate used for optoelectronic devices and comprises a flexible substrate; the invention is characterized in that a bonding layer and a conductive thin film are arranged on the surface of the flexible substrate; the conductive thin film is deposited on the surface of the bonding layer; the bonding layer is made of UV-curable adhesive; and the adhesive is the mixture of free radical type UV-curable adhesive and cationic type UV-curable adhesive. The cationic-type and free radical-type UV-curable adhesives are united in one to make full use of light energy and achieve mutual modification; the curing product concentrates the advantages of epoxy resin and acrylic resin and overcomes certain shortcomings, thereby creating a brand-new system.

The invention relates to a reduction etching liquid for base plates of sheet glass, components percentage by weight of which comprise: hydrofluoric acid holding 5-25%, strong acid holding 5-30% and pure water holding 45-90%. The reduction etching liquid for base plates of sheet glass of the invention is less in volatilization and toxicity. The using rate of the etching liquid is high and etching speed is rapid and stable. Costs of waste liquor treatment and subsequent treatment are low. The etching effect is excellent. Therefore, the invention has wide prospects for application.

The invention discloses a manufacturing method for a holographic dual-blazed grating. The two blaze angles of the holographic dual-blazed grating are respectively a blaze angle A and a blaze angle B. Different control of the two blaze angles is realized by performing oblique ion beam etching by using a photoresist grating and a homogenous grating as masks on two grating areas A and B, so that a secondary photoresist photoetching process is avoided. When the homogenous grating is manufactured, the positive ion beam etching time can be controlled so that the groove depth of the homogenous grating is controlled precisely. In addition, the homogenous grating mask and the substrate are made of the same material, and the etching rate of the homogenous grating mask and the etching rate of the substrate are kept consistent all the time, so that precise control of the blaze angles can be realized.

Provided is a rolled copper or copper alloy foil having a roughened surface formed of fine copper particles, obtained by subjecting a rolled copper or copper alloy foil to roughening plating with a plating bath containing copper sulfate (Cu equivalent of 1 to 50 g/L), 1 to 150 g/L of sulfuric acid, and one or more additives selected among sodium octyl sulfate, sodium decyl sulfate, and sodium dodecyl sulfate under the conditions of a temperature of 20 to 50° C. and a current density of 10 to 100 A/dm². The provided rolled copper or copper alloy foil subject to roughening is reduced in craters which are obvious defects unique to rolled copper or copper alloy foils having a roughened surface, has high strength, adhesive strength with the resin layer, acid resistance and anti-tin plating solution properties, high peel strength, favorable etching properties and gloss level, and also suits for use in producing a flexible printed wiring board capable of bearing a fine wiring pattern. Additionally provided is a method of roughening the rolled copper or copper alloy foil.

The invention discloses a base plate for a flexible optoelectronic device, which comprises a flexible underlay. The base plate is characterized in that a binding layer and a conducting film are arranged on the surface of the flexible underlay; the conducting film is deposited on the surface of the binding layer; the binding layer is made of an adhesive required to be solidified by ultraviolet light; the raw material of the adhesive comprises the following componentsof polythiol-polyene system, simple function group or polyfunctional group acrylic acid, a photoinitiator, a photosensitizer and an additive. The base plate solves the problem that the cohesion of the conducting film deposited and the underlay is bad due to low energy on the surface of the flexible underlay, improves the blocking performance of the underlay to water oxygen, and simultaneously plays a good smoothing role in the surface of the underlay; and the preparation method is simple and effective, the production cost and the process difficulty of the base plate can be greatly reduced, and the yield rate of the base plate during the etching process is improved.

The invention relates to a surface treatment process of reddened copper foil for a high-grade FR-4 copper-clad plate, belonging to the field of a copper foil production process. The surface treatment process of the reddened copper foil for the high-grade FR-4 copper-clad plate is characterized by comprising the following steps: taking 12-70mu m high-temperature high-extensibility copper foil as a cathode, operating at a rate of 25.0+/-0.1m/min, carrying out coarsening and solidifying fractal electro-deposition of tuberculiform metallic copper on the surface of the copper foil; electrodepositing a nano-level copper alloy layer, wherein the copper alloy can be observed that the crystal is in a punctiform shape by utilizing an electron scanning microscope, and the crystal belongs to whisker; and electrodepositing a nano-level zinc layer; and finally carrying out alkaline chromating, and coating a layer of silane coupling agent. In the process of electrodepositing a nano-level punctiform whisker copper-nitrogen alloy layer, the invention adopts nitrogen-containing heterocyclic ring organic addition agent to improve the appearance characteristic and the corrosion resistance after surface treatment. The reddened copper foil in the invention has the advantages of favorable normal temperature resistance, high-temperature oxydation performance, plating diffusion resistance, corrosion and etching resistance, favorable peeling resistance and high-temperature conversion resistance.

The invention discloses a surface blackening treatment method for a rolled copper foil. The surface blackening treatment method orderly comprises the following steps: (1) electrochemical oil removal, (2) coarsening treatment, (3) solidification treatment, (4) nickel-cobalt plating treatment, (5) zinc plating treatment, (6) passivation, (7) silicone coupling agent coating treatment, and (8) drying treatment, and obtaining the product. Current is applied in step (1) to step (6). The surface blackening treatment method for a rolled copper foil provided by the present invention has the advantage that the black appearance of the copper foil obtained after various electric plating steps meets FPC requirements. Through determination, the copper foil has a surface color blackness value of less than 30, surface roughness Ra of less than or equal to 1.0 micron and Rz of less than or equal to 2.0 microns, peel strength of more than 1.4 N/mm, and folding endurance MIT of more than 800; the copper foil has favorable acid resistance, alkali resistance, soldering resistance, and etching performance. With the blackness value RAL7016, a good extinction effect is achieved.

The invention relates to a fine roughing treatment technology for the surface of electrolytic copper foil. The fine roughing treatment technology includes the following processes of primary roughing, secondary roughing, primary curing, secondary curing, third-level roughing, zinc and nickel alloy plating, oxidization preventing, silane coupling agent treating and drying. The copper foil produced through the technology has relatively low surface roughness, meanwhile has very high stripping resisting strength, especially shows excellent bonding strength on plates of Tg 170 or above and is very suitable for low-loss and ultra-low-loss high-speed circuit boards. Key technology indexes of the copper foil produced through the technology reach the level of the same kind of products of advanced copper foil manufacturers such as Mitsui Mining and Smelting (MHT), Furukawa Electric (MP) and JX Nippon Oil (JTC-LC), replaces imported copper foil of the same kind and is applied to high multi-layer high-end plates, HDI high-end plates, halogen-free high-end plates and other high-end plates in China or Euramerican countries.

In a plasma etching apparatus for performing a plasma etching on a surface of a substrate mounted on a susceptor in a processing vessel, a focus ring is installed to surround the substrate and has a first region at an inner side on a surface thereof, in which an average surface roughness is small such that a reaction product produced during an etching processing is not captured to be deposited, and a second region at an outer side from the first region, in which an average surface roughness is large such that a reaction product produced during the etching process is captured to be deposited. A boundary between the first and the second region is a part where an etching amount is relatively significantly changed compared to other parts while the focus ring is equipped in the plasma etching apparatus and the plasma etching is performed on the substrate.

The invention is a substrate for a flexible photoelectronic device, comprising flexible substrate, and characterized by also comprising organic buffer layer spin-coated on the substrate surface and conductive film, where the conductive film is deposited on the surface of the organic buffer layer, and the material of the organic buffer layer is organic photo-curing agent. And it solves the problem of bad adhesion between the deposited film and the substrate caused by low surface energy of the flexible substrate and improves the obstruction performance of the substrate to water-dissolved oxygen, and besides play a good role of smoothening the substrate surface; and the preparing method is simple, effective and able to largely reduce substrate production cost and process difficulty.