56results about How to "High yield in mass production" patented technology

A vehicle light can include a light emitting diode (LED) serving as a light source and an optical system for controlling a light distribution pattern of the light beams from the LED light source utilizing a light guide (such as a lens body having an inner reflecting surface). The vehicle light can project illumination light with a low beam light distribution pattern. The vehicle light can include an LED light source and a lens body serving as a light guide. The lens body can include a light incident surface, a reflecting surface, and a light exiting surface. The LED light source can have a rearmost end light emitting point from which light beams are emitted to form a bright-dark boundary line. Among the light beams, perpendicularly incident light beams not subjected to refraction can be projected toward the bright-dark boundary line while obliquely incident light beams that are subjected to refraction can be corrected to be directed in a lower angular direction than the bright-dark boundary line and to be mixed with the other light beams, thereby preventing color shading of illumination light from the vehicle light.

The invention relates to the technical field of display, and discloses a display backplane which comprises a bent region, non-bent regions and a connection layer. The non-bent regions include a firstnon-bent region and a second non-bent region, the first non-bent region and the second non-bent region are connected with each other by the bent region, the connection layer is arranged between the first non-bent region and the second non-bent region and is close to the bent region, and the first non-bent region and the second non-bent region can be supported by the connection layer and can be adhered with the connection layer. The display backplane has the advantages that cushion structures for cushioning squeezing effects of the edges of the connection layer on the non-bent regions are formed at the edges, which are close to the bent region, of the connection layer, cushion effects can be realized by the cushion structures when bending processes are carried out on the bent region of thedisplay backplane, accordingly, back films of the non-bent regions and metal in source and drain electrode metal layers of the non-bent regions can be prevented from being directly squeezed by the edges of the connection layer, squeezing acting force which is applied by the edges of the connection layer on metal routing in the bent region can be reduced, breakage of an internal metal wire can be reduced when the bent region is bent, the bending success rate of the display backplane can be increased, and the mass production yield of products can be increased.

The present invention relates to a semiconductor package and a method for making the same. The semiconductor package includes a substrate, at least one first chip, a dielectric layer and at least one second chip. The first chip is attached and electrically connected to the substrate. The first chip includes a first active surface and a plurality of first signal coupling pads. The first signal coupling pads are disposed adjacent to the first active surface. The dielectric layer is disposed on the first active surface. The second chip is attached and electrically connected to the substrate by metal bumps. The second chip includes a second active surface and a plurality of second signal coupling pads. The second active surface contacts the dielectric layer. The second signal coupling pads are disposed adjacent to the second active surface, and capacitively coupled to the first signal coupling pads of the first chip, so as to provide proximity communication between the first chip and the second chip. Whereby, the gap between the first signal coupling pads of the first chip and the second signal coupling pads of the second chip is controlled by the thickness of the dielectric layer. Therefore, the mass-production yield of the semiconductor package is increased.

A wafer-leveled chip packaging method, comprising the steps of: providing a wafer; attaching at least one first chip to the wafer; forming a first insulating layer on the wafer; forming a plurality of first conductive vias penetrating the first insulating layer, wherein parts of the first conductive vias are electrically connected with the first chip; forming a conductive pattern layer on the surface of the first insulating layer wherein the conductive pattern layer is electrically connected with the first conductive vias; forming a plurality of through holes penetrating the wafer; filling a second insulating layer in the through holes; and forming a plurality of second conductive vias in the second insulating layer, wherein the second conductive vias are electrically connected with the first conductive vias.

The invention provides a display screen and a mobile terminal, wherein the display screen comprises a cover plate, a display module and a decoration part; the decoration part comprises a light-transmitting bearing part and a supporting part in connection with the bearing part; the first surface of the bearing part and the supporting part form a first mounting groove used for bearing the cover plate; the second surface of the bearing part and the supporting part form a second mounting groove for accommodating the display module; and the first surface and the second surface are two opposite surfaces of the bearing part. According to the display screen provided by the invention, the side surface dispensing process can be avoided, and the frameless effect is realized; meanwhile, the reliability of the display module can be ensured on the basis of reducing the production cost, and the quantity production yield is improved.

Using intensity of reflected light of sensing light wave from fiber grating, the invention determines whether there is disconnection in fiber loop, or light loss of fiber loop is too high in order to distinguish whether electric system control or fiber loop goes wrong decidedly. Using 1550nm fiber Bragg grating as main module, the device includes 1550nm light band-pass filter, optical circulator, tunable laser light source, and optical power meter of light wave. The invention is the technique for detecting disconnection of fiber loops in low cost, and replicated assembling and repeatedly uses so as to reduce maintenance cost outdoors.

The invention provides a virtual reality display screen, a head display device and a virtual reality head display system. The display screen comprises a display panel and a first polaroid, wherein thefirst polaroid is arranged on a first surface of the display panel, the first polaroid comprises multiple first regions and multiple second regions, the multiple first regions and the multiple secondregions are alternately distributed in the first direction, and polarization directions of the first regions and the second regions are perpendicular to each other. The display screen is advantaged in that the whole display screen can be seen by two eyes of a user, the visual view field and the double-eye overlapped region of the virtual reality head display system can be greatly improved, the virtual world immersion effect of the user is enhanced, compared with the prior art, the use of one display screen can eliminate restriction of the strict alignment relationship in the dual display screen mounting process, and the production yield is improved.

The invention discloses a calibration method and device of an active noise reduction system of wearable equipment, a storage medium and a terminal. The method comprises the steps: starting the active noise reduction system, enabling an audio playing module to play a noise test signal, and collecting the noise test signal through a sound collection module; calculating secondary path estimation of the active noise reduction system; stopping playing the noise test signal, playing an environment noise through an external playing module, and configuring an initial parameter of the active noise reduction system and a preset calibration coefficient of a filter, wherein the initial parameter comprises the secondary path estimation; and enabling the audio playing module to play the noise reduction signal, and acquiring the target coefficient of the filter, wherein the target coefficient is used for calibrating the filter. According to the scheme, the mass production yield of the wearable equipment can be improved, and the noise reduction performance is increased.

In the mass production of dielectric resonator oscillators (DROs), it is necessary to regulate the position where a dielectric resonator is placed with a high degree of accuracy and thus time required for the assembly work increases undesirably. Further, a terminating resistor and earthing means are formed at an end of a transmission line that is electromagnetically coupled to the dielectric resonator and constitutes the resonator on a dielectric substrate, and as a result the production cost increases. The present invention is characterized in that, in the components of a DOR, only a transmission line is formed on a dielectric substrate, and an oscillating active element and a terminating resistor and the earthing means on an MMIC chip are connected to the transmission line with metallic wires, metallic ribbons, or the like. Further, an open stub is formed in the middle of the transmission line on the side close to the oscillating active element when it is viewed from the dielectric resonator.

The invention discloses a technical preparation method of an IBC battery, which comprises the steps of A, performing front texturing and back polishing on an n-type original silicon wafer, the front textured surface ranges between 1 micron and 10 microns in size, the reflectivity of the textured surface is 9%-13%, and the back polishing reflectivity is 30%-45%; B, forming a first doped region at the back, and then performing back selective partition to remove an oxide layer; C, performing partition texturing and etching by using KOH with the mass ratio being 1%-3%, an additive with the mass ratio being 3%-5% and an etching solution with the temperature ranging between 75 DEG C and 85 DEG C, wherein the reflectivity of an etched area is 20%-28%; and then D, forming a second doped region at the back, forming FSF at the front, depositing a passivation layer at the front and the back, and finally selectively forming metal electrodes of a p-region and an n-region at the back. After adopting the method, in the back metal printing process, the p-region and the n-region are distinguished by using the textured surface/polished surface to form surface state contrast, a CCD camera has different spectral responses at different surface states in metal printing, and thus quick and accurate alignment of metal printing is achieved.

The invention discloses a narrow-window coaxial single-line laser scanning range finder, and the range finder comprises: a range finding core part which is used for obtaining range finding data; a control module which is movably connected with the range finding core part; and a ranging core part which comprises an optical module and an information processing module, wherein the information processing module is used for processing a laser ranging signal obtained by the optical module and converting the laser ranging signal into distance data. The optical module comprises a laser emitting unit, a focusing lens and a photosensitive receiving unit. The laser emitting unit is used for generating pulse emitting laser and generating a start signal used for flight time timing. The focusing lens is used for converging the light beams reflected by the measured object and focusing the light beams to the photosensitive receiving unit; and the photosensitive receiving unit is used for generating a photoelectric signal and generating a stop signal for timing in flight according to the photoelectric signal. According to the invention, the ranging core member is rotatably arranged on the control module, 360-degree scanning ranging can be realized, a reflector device is omitted, the process difficulty of assembly is reduced, and the yield of mass production can be effectively improved.

The invention provides a display panel and a mobile terminal. The panel layer is composed of but not limited to a first part, a second part and a bent third part connected to the first part and the second part; the protective layer is located on the third part; the first supporting layer is located on the side, away from the protective layer, of the panel layer and is opposite to the first part; the cover plate layer is located on the first part; the thickness of the side, close to the first part, of the protective layer is set to be smaller than that of the middle of the protective layer, the side, close to the first part, of the protective layer is located between the side, close to the third part, of the first part and the inner boundary of the ink layer, the capillary action is combined, and the thickness of the ink layer is smaller than that of the side, close to the third part, of the protective layer. In other words, the final form of the protective layer can ensure that the preset distance is formed between the composition material of the protective layer and the tearable film layer in the process of manufacturing the protective layer, so that the risk that the protective layer is torn when the tearable film layer is torn is reduced, and the yield of mass production of the display panel is improved.

The present invention provides an ultra-wideband phase shifter comprising a first dielectric sheet, a second dielectric sheet, a metal sheet, ferrites and a waveguide. The first dielectric sheet, the second dielectric sheet and the metal sheet are sequentially stacked up and are fixedly bonded together by the conductive adhesive. The surface of the second dielectric sheet, adjacent to the first dielectric sheet, is provided with a groove. A nematic liquid crystal is injected into a cavity enclosed by the groove and the first dielectric sheet. The outer surface of the first dielectric sheet and the outer surface of the metal sheet are sequentially and respectively provided with at least two layers of ferrites. An excitation wire passes through the ferrites. The first dielectric sheet, the second dielectric sheet, the metal sheet and the ferrites are located in the cavity of the waveguide. The two ends of the waveguide are respectively provided with a first matched medium and a second matched medium. The two ends of the first dielectric sheet and the two ends of the second dielectric sheet are in contact with the first matched medium. The two ends of the ferrites are in contact with the second matched medium. The dielectric constant of the first matched medium is larger than the dielectric constant of the second matched medium. The ultra-wideband phase shifter can be used for phase shifting within the range of ultra-wideband microwave frequency band.