569 results about "Glass structure" patented technology

The invention provides a low-dielectric glass fiber composition, a low-dielectric glass fiber and a preparation method thereof, and the low-dielectric glass fiber composition comprises the following components in molar percentage: 54 to 60 percent of SiO2, 21 to 32 percent of B2O3, 1.0 to 9.5 percent of Al2O3, 3 to 16 percent of alkaline earth metal oxide, 0.01 to 4.0 percent of ZrO2, 0.1 to 4.0 percent of TiO2, 0.01 to 2.0 percent of LiO2 and 0.5 to 5.0 percent of F2. Wherein the alkaline earth metal oxide comprises CaO and MgO, and according to the molar percentage, the CaO accounts for 0.01%-4.0%, and the MgO accounts for 0.5%-8.0%. According to the glass fiber, SiO2 and B2O3 are taken as main components of the glass, SiO2 can be taken as a network former of a glass structure, on one hand, part of B2O3 can form a [BO4] tetrahedral structure to enter a glass silica network structure so as to play a role in reinforcing a net, and on the other hand, B2O3 can effectively inhibit ion polarization so as to reduce the dielectric constant and dielectric loss of the glass fiber; according to the present invention, the specific type of the alkaline earth metal oxide is added, and the certain content of the Al2O3, the ZrO2, the TiO2, the LiO2 and the F2 is supplemented so as to further reduce the dielectric constant and the dielectric loss of the glass fiber, and the cooperative control of the components is beneficial to the improvement of the glass processing property and the guarantee of the glass fiber drawing stability.

The viewing window for the roof of the passenger train comprises an outer frame, the outer frame is of a hollow frame structure, the outer frame is of an arc-shaped structure with the middle protruding, a display assembly is installed in the outer frame, the display assembly is matched with the bent shape of the outer frame, the display assembly comprises a first transparent plate and a second transparent plate, and the first transparent plate is connected with the second transparent plate. The first transparent plate and the second transparent plate are glued and fixed, the first transparent plate is arranged on the outer side of the second transparent plate, the second transparent plate is close to the inner side of a carriage, a liquid crystal dimming film is arranged between the first transparent plate and the second transparent plate, and the liquid crystal dimming film is connected with a voltage or current control circuit in a vehicle body to change the light transmittance of the liquid crystal dimming film. According to the viewing window for the roof of the passenger train, in the display assembly, the laminated glass and single-layer glass structure is adopted to be bonded with the liquid crystal dimming film, the intensity of light in the train can be manually adjusted according to different time periods and illumination conditions, and more comfortable, safer and more environment-friendly travel experience is provided for passengers.

The diamond coated glass structure may include a glass substrate in which the deposited nanocrystal diamond is coated on the glass substrate. A layer of ultra-nanocrystalline diamond may be deposited on the deposited nanocrystalline diamond. The combination of the deposited nanocrystal diamond and ultra-nanocrystal diamond may have a surface roughness of less than 9 nanometers RMS.

The invention discloses a Micro-LED light extraction structure, which relates to the field of photoelectricity and comprises first glass for bearing the light extraction structure, a photoresist curing film layer which is arranged on the first surface of the first glass structure and is imprinted and cured by a PDMS template, and a micro lens array arranged on the second surface of the first glass structure, and the surface of the micro-lens array is matched with the PDMS template to be subjected to surface roughening through a nanoimprint process. Meanwhile, the invention further discloses a preparation method of the Micro-LED light extraction structure. According to the invention, a set of PDMS template is adopted to respectively carry out roughening treatment on the glass surface and impressing transfer roughening treatment on the lens surface, so that the light emitting rate is improved, and the light extraction rate of the whole Micro-LED is effectively improved.

The utility model discloses a multi-layer heat insulation laminated glass structure which comprises an outer frame, an inner sealing frame and a plurality of pieces of laminated glass, the inner sealing frame is installed in the outer frame, an installation groove is formed between the outer frame and the inner sealing frame, the laminated glass is installed in the installation groove, the inner side faces of the laminated glass abut against the end face of one side of the inner sealing frame, and the inner sealing frame is installed in the installation groove. Grooves are formed in the two sides of the outer frame, connecting openings communicated with the mounting grooves are formed in the tops and the bottoms of the grooves, U-shaped plates are arranged in the grooves, the two side plates on the U-shaped plates penetrate through the connecting openings, and the inner side faces of the U-shaped plates abut against the outer side face of the laminated glass. According to the utility model, the structure is simple, the multi-layer laminated glass can be quickly assembled and disassembled through the U-shaped plate, and after the multi-layer laminated glass is assembled, a sealed hollow layer can be formed among the plurality of pieces of laminated glass through the outer frame and the inner sealing frame, so that the heat-insulating and mute effects are improved.

The invention relates to the technical field of photoresist, in particular to glass photoresist, a preparation method of the glass photoresist and a femtosecond laser preparation method of an optical fiber end face micro-nano glass structure. The glass photoresist is prepared from acrylic polysilsesquioxane and acrylic ester, glass photoresist is arranged on a preset surface; photocuring equipment is adopted to carry out photocuring on the glass photoresist, so that the glass photoresist forms a cured structure; and performing heat treatment on the cured structure. Compared with the prior art, the glass photoresist different from the traditional silicon dioxide loaded glass photoresist is obtained, the problem that the traditional silicon dioxide additive printing technology is limited by the size of silicon dioxide nanoparticles is solved, and printing of a glass monomer polymerization cross-linked structure with the characteristic size exceeding the diffraction limit is achieved; organic components in the cross-linked precursor are effectively decomposed through heat treatment, and manufacturing of the optical fiber end face integrated high-quality silicon dioxide micro-nano glass is achieved.

The invention belongs to the field of glass material research, and discloses a method for regulating and controlling rare earth ion clusters in laser glass based on molecular dynamics simulation and application of the method. Based on given glass components, density and atomic number, an initial amorphous structure model M0 is constructed; based on a molecular dynamics theory, performing high-temperature melting quenching simulation on the initial amorphous structure model M0, and constructing a glass structure model M; calculating glass microstructure parameters and designing rare earth ion cluster parameters based on atomic coordinate information of the glass structure model M; establishing a glass component-microstructure mathematical model and a microstructure-rare earth ion cluster mathematical model based on the glass components, the microstructure parameters and the rare earth ion cluster parameters; based on the model, regulation and control on the agglomeration degree of the rare earth ions in the glass are realized. According to the method, the problem that the rare earth ion clusters in the laser glass cannot be quickly and effectively regulated and controlled due to the fact that the rare earth ion clusters in the glass are difficult to quantitatively describe by experimental means is solved.

The invention relates to the technical field of optical fiber communication and optical measurement, in particular to an all-glass single-mode polarization-maintaining optical fiber collimator and a preparation method thereof.The all-glass single-mode polarization-maintaining optical fiber collimator comprises a collimating lens, a glass sleeve, a quartz ferrule and a single-mode polarization-maintaining optical fiber which are sequentially arranged along an optical path; the collimating lens and the glass sleeve are bonded and fixed through an oxyhydrogen catalytic bonding solution; an optical fiber core of the single-mode polarization maintaining optical fiber extends into the quartz ferrule, and one end of the quartz ferrule extends into the glass sleeve and is bonded and fixed with the glass sleeve through an oxyhydrogen catalytic bonding solution; the optical fiber collimator is prepared into a full-glass structure, stable collimation performance is ensured, meanwhile, the hydrogen-oxygen catalytic bonding technology is adopted for bonding and fixing all parts of the optical fiber collimator, high-strength and glue-free bonding can be achieved, the problem of thermal instability caused by poor thermal conductivity is effectively avoided, and long-term stable optical performance is ensured.

A method of controlling or changing a bow or curvature in laminated glass structures includes heating a thermoplastic polymer of a laminated glass structure having an initial curvature. A force is utilized to change the curvature, and the laminated structure is cooled to harden the thermoplastic polymer, upon cooling, whereby the laminated glass structure has a curvature that is different than the initial curvature.

The invention provides a vacuum glass service life prediction method and device, equipment and a storage medium. The method comprises the steps that the actually-measured surface temperature and actually-measured surface heat flow of vacuum glass, vacuum glass structure data, supporting column structure data, the leakage rate and typical meteorological year data of the place where the vacuum glass is located are obtained; according to the actually-measured surface temperature, the actually-measured surface heat flow, the vacuum glass structure data and the supporting column structure data, initial in-cavity gas heat resistance is obtained through calculation; determining an initial vacuum degree corresponding to the initial thermal resistance of the gas in the cavity according to a mapping relation between the vacuum degree and the thermal resistance of the gas; and predicting the service life by using the initial vacuum degree, the glass structure data, the leakage rate, the typical meteorological year data of the vacuum glass location and the service life prediction mathematical model to obtain the predicted service life of the vacuum glass. A model basis can be provided for predicting the service life of the vacuum glass, the prediction result better conforms to the actual service condition, and the prediction accuracy is effectively improved.

The invention provides a glass structural member and electronic equipment. The glass structural member comprises a glass substrate, and a first optical scratch-resistant laminated layer, a second optical scratch-resistant laminated layer and a first superhard layer which are sequentially laminated on one side of the glass substrate, the first optical scratch-resistant laminated layer is formed by alternately laminating two material layers with different refractive indexes, and the second optical scratch-resistant laminated layer is formed by laminating three material layers with different refractive indexes; and the first superhard layer is a diamond-like carbon doped with at least one element of silicon, aluminum, titanium, zirconium, molybdenum and nitrogen. The glass structural member has good scratch resistance and optical performance which is not greatly changed compared with a glass substrate, and can better meet the long-term use requirement of an electronic equipment shell.

The application provides a glass structure and an electronic device. The glass structure comprises a glass substrate and a first optical scratch-resistant layer, a second optical scratch-resistant layer and a first superhard layer which are sequentially stacked on one side of the glass substrate, the first optical scratch-resistant layer is formed by alternately stacking two layers of materials with different refractive indexes, the second optical scratch-resistant layer is formed by stacking three layers of materials with different refractive indexes, and the first superhard layer is a diamond-like layer doped with at least one element selected from silicon, aluminum, titanium, zirconium, molybdenum and nitrogen. The glass structure has good scratch resistance and optical properties which change little compared with the glass substrate, and can better meet the long-term use requirements of the electronic device shell.

The invention belongs to the technical field of aircraft cockpit windshield glass structure design, and particularly relates to an aircraft cockpit windshield glass structure which comprises an electromagnetic film, outer-layer glass, inner-layer glass, a metal frame, a metal sinking frame and a curved-surface wave-transparent fairing. The electromagnetic film is positioned between the outer-layer glass and the inner-layer glass; the inner-layer glass is arranged in the metal frame; the electromagnetic film is in flush contact with the outer side surface of the metal frame; the metal sinking frame is mounted in the windshield window, and the cross section of the metal sinking frame is L-shaped; the metal frame is arranged in the L-shaped opening of the metal sinking frame, the outer side surfaces of the metal frame and the metal sinking frame are flush and contacted with the aircraft body surface skin, and the outer-layer glass protrudes out of the aircraft body surface skin; the curved-surface wave-transparent fairing surrounds the periphery of the outer-layer glass and is in smooth transition between the outer-layer glass and the surface skin of the machine body.

The invention discloses a silicon substrate-chalcogenide glass-plasmon hybrid integrated waveguide structure and a preparation method thereof, and belongs to the technical field of integrated optics, the silicon substrate-chalcogenide glass-plasmon hybrid integrated waveguide structure comprises an SOI substrate, a dielectric layer is arranged on top silicon of the SOI substrate, metal and chalcogenide glass are arranged on the dielectric layer, a plasmon slit waveguide structure is formed between the metal, and the chalcogenide glass is arranged between the metal and the plasmon slit waveguide structure. The end parts of the metal slit are respectively connected with the end parts of different chalcogenide glass, and extend outwards along the extension line of the slit to form a chalcogenide glass-metal slit-chalcogenide glass structure. Silicon-based-chalcogenide-plasmon waveguides are combined, the tolerance of an overlay process is increased in an interlayer mode conversion mode, the transmission loss of the plasmon waveguides is improved in a silicon-based-plasmon mixed waveguide mode, the robustness of the device is improved, and the device functions of low loss and high mode conversion efficiency are achieved. And the application of the plasmon integrated optical waveguide device in hybrid integrated optoelectronic devices and nonlinear optical regulation and control is promoted.

The invention relates to the technical field of engineering, and discloses a direct shear model device for monitoring side slope shear deformation, which comprises a shear box, a loading system, a DIC monitoring system, a data acquisition system and a fixing device. In order to represent the shearing process of a soil body in a direct shear model test, a shear failure mode of the soil body is summarized, and a tempered glass structure is built. The shear box is mainly composed of two shear boxes of 2 * 1 * 0.5 (length, width and height) cubic meters and a shear box of 2 * 1 * 1 (length, width and height) cubic meters. The left large shear box is connected with the middle shear box through a rotatable shaft, and a detachable baffle is arranged at the bottom of the left large shear box. A buckle is arranged at the bottom of the shear box and used for fixing an optical fiber sensor for testing. According to the direct shear model device for monitoring the shear deformation of the side slope, a new idea is provided for meeting the requirements of start and extension research of a shear zone in side slope soil.

The invention provides an adhesive tape and a double-glass structure product. The adhesive tape comprises a release film layer, a pressure-sensitive adhesive layer and a base material layer which are sequentially stacked, the pressure-sensitive adhesive layer comprises a flaky magnetic filler; the flaky magnetic filler comprises a first-direction flaky magnetic filler and a second-direction flaky magnetic filler, an acute angle between the normal direction of the first-direction flaky magnetic filler and the winding axis direction of the adhesive tape is 0-45 degrees, and the first-direction flaky magnetic filler accounts for 50-100% of the weight of the flaky magnetic filler. By adding the flaky magnetic filler into the pressure-sensitive adhesive layer and adjusting the orientation of the flaky magnetic filler in the pressure-sensitive adhesive layer, the transverse and longitudinal water resistance of the adhesive tape is remarkably improved, the weather resistance and bonding strength of the adhesive tape are considered, and when the adhesive tape is applied to objects with water resistance requirements on edges or adhesive tape bonding parts, such as photovoltaic modules, laminated glass and the like, the adhesive tape has excellent water resistance. Effective protection can be provided, and the service life of assemblies is effectively prolonged.

The utility model discloses an intelligent remote control type built-in multi-roll sunshade curtain hollow glass which comprises a hollow glass body and a sealing box, the sealing box is arranged at the upper end of the hollow glass body, an electric driving mechanism and a plurality of sunshade roller shutters are arranged in the sealing box, and the sunshade roller shutters are wound on sunshade roller shutter tubes of the electric driving mechanism in a stacked mode. The electric driving mechanism is used for driving the sunshade roller shutter to move up and down in the cavity of the hollow glass; according to the utility model, the plurality of sunshade roller shutters are stacked and wound on one electric driving mechanism, when the plurality of sunshade roller shutters are lifted, only one electric driving mechanism is needed to drive the plurality of sunshade roller shutters to lift, and compared with the prior art that a plurality of external driving motors need to be used when the plurality of sunshade roller shutters are lifted, the whole structure is simpler; large-scale production is facilitated, the production efficiency is improved, and the technical problems that in the prior art, hollow glass is complex in structure and low in production efficiency, the hollow glass is heated after being irradiated by sunlight, and the energy-saving and low-carbon effects are not ideal can be effectively solved.

The invention provides a glass assembly and a vehicle, the glass assembly comprises a glass structure, an electric function layer and a connector module, the electric function layer is arranged on the glass structure, the connector module comprises a flexible circuit board and a rib, one end of the flexible circuit board is arranged on the glass structure and electrically connected with the electric function layer, and the other end of the flexible circuit board extends out of the glass structure and is used for being connected with a wire harness structure; wherein the flexible circuit board is provided with a corner part, and the ribs are arranged corresponding to the corner part. Ribs can be arranged at the positions corresponding to the corner parts, the strength of the flexible circuit board is improved through the ribs, the tear resistance is improved, and the connector module is prevented from being damaged due to tear in the transportation and operation process.

The invention provides glass and a preparation method thereof, glass fiber and an electronic device. The glass is prepared from the following components in percentage by mass: 56 percent to 64 percent of SiO2, 4 percent to 9 percent of B2O3, 0.1 percent to 1 percent of P2O5, 10 percent to 17 percent of Al2O3, 2 percent to 7 percent of Na2O, 4 percent to 8 percent of MgO, 4 percent to 10 percent of CaO, 0.1 percent to 1.5 percent of TiO2 and 0.01 percent to 1 percent of Y2O3. According to the present invention, the types and the mass percentages of the glass components are regulated and controlled, the components cooperate with each other and have the synergistic effect, and the stability of the frame-shaped structure in the glass structure is improved so as to improve the dielectric property and the thermal property of the glass product; further, the requirements of the fifth-generation wireless communication technology on the glass substrate can be met.

The invention belongs to the technical field of automatic control, and particularly relates to a large-span ellipsoidal glass structure space noise reduction method based on sound field optimization, and the method comprises the steps: 1, transmitting a sample noise in an ellipsoidal glass structure through a sound wave generator, building a sound wave propagation model to describe the behavior of the sample noise in the ellipsoidal structure, an incident sound field is obtained; 2, analyzing the propagation characteristics of the sample noise in the ellipsoidal glass structure to obtain an acoustic structure coupling equation, and solving the acoustic structure coupling equation to obtain structural vibration displacement; 3, obtaining a sound radiation field of the ellipsoidal glass structure according to the structural vibration displacement; and step 4, combining the incident sound field and the sound radiation field, and performing spatial noise reduction by reflecting the sound pressure of the sound field. According to the method, the problems of poor adaptability and low control precision of a traditional noise reduction method in a non-uniform structure are effectively solved, and the noise reduction efficiency, the control sensitivity and the environment adaptability of a building space are remarkably improved.

The utility model discloses a hollow glass door body with variable hollow thickness, which comprises a door body frame and a hollow glass structure, the door body frame comprises a frame, a front separation blade, a rear separation blade and a frame insert, a sliding block is fixed on the rear side of the frame insert, the front side of the rear separation blade is provided with a sliding groove matched with the sliding block, and the frame insert is provided with a sliding groove matched with the sliding block. The sliding blocks and the sliding grooves slide in the length direction of the frame, and the hollow glass structure comprises inner glass, outer glass and spacing bars arranged between the inner glass and the outer glass. The door body frame is modularly designed, the front side of the door body frame is kept unchanged, and the frame insert is arranged on the rear side of the door body frame in a matched mode, so that a frame structure formed by combining the frame and the frame insert is formed, when the frame insert is installed, the width of the glass installation groove is small, and the door body structure is suitable for a two-glass one-cavity door body structure. The frame insert is used for installing a middle frame glass structure with two pieces of glass and one cavity, when the frame insert is not installed, the width of the glass installation groove is large, and the frame insert is suitable for a door body structure with three pieces of glass and two cavities.

The utility model provides a pressure testing device for a liquid crystal display glass structure of a mobile phone screen, and relates to the technical field of mobile phone screen processing, the top of a base is provided with an L-shaped support, the bottom end face of the L-shaped support is provided with an electric cylinder through a retainer, the output end of the electric cylinder is provided with a pressure detection probe through a sliding assembly, and the pressure detection probe is provided with a pressure sensor. A rotating disc is rotationally installed at the center of the upper end face of the base, clamping assemblies are installed on the surface of the rotating disc at equal intervals, and the clamping assemblies are used for clamping liquid crystal display glass of a mobile phone screen. The device is novel in overall design and simple in structure, centering operation can be carried out on a to-be-detected screen liquid crystal display glass structure, data in the pressure measuring process can be conveniently kept stable, and therefore the device is worthy of wide application and popularization.

The invention relates to a glass cover plate which comprises a light-emitting surface and a side surface adjacent to the light-emitting surface, a first area on the side surface is provided with an anti-reflection structure, and the anti-reflection structure comprises a glass ceramic structure. According to the glass cover plate, the anti-reflection structure is arranged in the first area of the side face, abnormal reflection of the side face of the glass cover plate is reduced, the anti-reflection structure is a glass ceramic structure, the edge strength of the cover plate can be effectively improved, and the mechanical reliability of the whole machine is improved. The invention further relates to a display module and a manufacturing method of the glass cover plate.

The invention relates to the technical field of tempered glass, and discloses explosion-proof tempered glass and a manufacturing method thereof.The explosion-proof tempered glass comprises a first glass base layer and a second glass base layer, a modified explosion-proof film is arranged between the first glass base layer and the second glass base layer through splicing liquid, and the modified explosion-proof film is filled with metal wires; the modified explosion-proof film is prepared from the following raw materials: terpene resin, methacrylic acid, cellulose, a plasticizer, a dispersing agent, an antioxidant, polyacrylate and absolute ethyl alcohol; the modified anti-explosion film is additionally arranged between the two glass base layers, the anti-explosion tempered glass obtained through initial pressing and high-pressure treatment is higher in structural strength, vacuumizing is not needed in the method, machining is very convenient, heat of the anti-explosion tempered glass can be evenly transmitted through the built-in thin metal wires, and the anti-explosion tempered glass is good in anti-explosion performance. Excessive internal stress caused by non-uniform temperature difference is avoided, the possibility of hot cracking can be effectively reduced, the possibility of spontaneous explosion of the tempered glass can be effectively reduced, and the use is very safe.

The utility model discloses a modularized hollow glass door body which comprises a door body frame and a hollow glass structure, the door body frame comprises a frame, a cavity is formed in the center of the frame, a heat preservation partition is arranged in the cavity, a sliding groove is formed in the side, close to the inner side of the frame, of the cavity, a sliding block is fixed to the heat preservation partition, and the sliding block is matched with the sliding groove. The sliding blocks and the sliding grooves slide in the length direction of the frame. The door body frame is modularly designed, the surface shape of the frame is kept unchanged, and the heat preservation partition is arranged in the cavity of the frame in a matched mode, so that a frame structure with the frame and the heat preservation partition combined is formed, the door body frame structure is suitable for different use environments, and the door body frame structure can be widely applied to environments with low requirements for heat preservation performance such as the northern area of China. The door body can be produced by directly utilizing the frame instead of a heat-insulating partition, and the door body can be produced by combining the heat-insulating partition and the frame in an environment with higher heat-insulating property requirement, such as the southern region of China.

A hollow-core fiber includes a hollow region that is a region extending in a longitudinal direction. The hollow region includes a glass structure constituting an optical transmission part provided with a hollow portion, and an outer cladding surrounding the glass structure. When a diameter of a circle having the same area as a total area of a cross section of the glass structure is set to 2a, an average refractive index of the glass structure is set to n1, an average refractive index of the outer cladding is set to n2, a wavelength of light propagating through the optical transmission part is set to λ, and a specific refractive index difference between the glass structure and the outer cladding is set to Δ shown in Equation (1), then n1>n2, and a normalized frequency v shown in Equation (2) is 2.56 or more.[Formula⁢ 1]Δ=n⁢12-n⁢222⁢n⁢12(1)[Formula⁢ 2]v=2⁢πλ⁢an⁢1⁢2⁢Δ(2)

The utility model relates to the technical field of hollow glass doors and windows, in particular to a low-radiation hollow glass door and window which comprises a door and window frame, a hollow glass structure is installed on the inner side of the door and window frame, the hollow glass structure comprises a fixing frame, and two glass layers which are bonded with the front side and the rear side of a sealing rubber frame respectively are arranged in the fixing frame in an embedded mode. An outer frame is fixedly connected to the outer wall of the fixing frame, the two glass layers are bonded through a sealing rubber frame to form a closed space, the interior of the closed space is in a vacuum state, the overall heat preservation and sound insulation effects of the door and window are effectively improved, the outer frame is fixedly connected to the outer wall of the fixing frame, the inner side structure is further protected through the outer frame, and the overall strength is improved. The thickness of the outer frame is equal to the distance between the outer side walls of the two glass layers, so that the glass layers are prevented from protruding out of the outer frame, the protection effect is good, the gaps between the two glass layers and the outer frame are filled with the buffer blocks, the portions, protruding out of the peripheries, of the glass layers are buffered and protected, the glass layers are prevented from being broken and damaged, and the service life is prolonged.

Microelectronic assemblies having a glass core with an outer frame and metal posts are disclosed. In one aspect, a microelectronic assembly may include a glass core (e.g., a glass layer or glass structure) having a first face, a second face opposite the first face, one or more outboard edge walls extending between the first face and the second face, and an opening extending between the first face and the second face. The microelectronic assembly may further include a conductive structure (e.g., a metal post) extending through the opening, and an outer frame surrounding one or more outboard edge walls of the glass core, where a first gap may be present between the conductive structure and a sidewall of the opening, and a second gap may be present between the conductive structure and the sidewall of the opening. And a second gap may be present between at least one of the one or more outboard edge walls and the outer frame.

A method for forming semiconductor devices includes: attaching a glass structure to a wide band-gap semiconductor wafer having a plurality of semiconductor devices; forming at least one pad structure electrically connected to at least one doping region of a semiconductor substrate of the wide band-gap semiconductor wafer, by forming electrically conductive material within at least one opening extending through the glass structure; and reducing a thickness of the wide band-gap semiconductor wafer after attaching the glass structure. Additional methods for forming semiconductor devices are described.