322results about How to "Avoid flash" patented technology

An integrated circuit package with a fully-exposed heat sink is provided. The integrated circuit package includes a substrate having a first side being formed with first conductive traces and a second side being formed with second conductive traces. At least one chip is mounted on the substrate and electrically connected to the first conductive traces. A plurality of solder balls are provided at the terminal ends of the second conductive traces to allow external connection of the chip. The fully-exposed heat sink is mounted on the substrate. The heat sink is formed with a plurality of supportive legs arranged in such a manner as to allow a bottom surface of the heat sink to be separated from the chip and a top surface of the heat sink to be tightly attached to a cavity in a mold used to form an encapsulant for enclosing the chip. A plurality of positioning tongues are formed on the heat sink for securing the heat sink in position when performing a molding process for forming the encapsulant. With this integrated circuit package, no jig is required in the assembly of the integrated circuit package. Moreover, since there is no need to use adhesives to adhere the supportive legs onto the substrate, the integrated circuit package would not suffer from delamination as in the case of the prior art. The fully-exposed heat sink allows an increased heat-dissipating efficient as compared to the prior art.

The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis defining a passage for a projectile and propellant gases to emerge from the muzzle opening. A plurality of serially placed baffles of symmetrical or slanted orientation and intervening coaxial spacers are positioned within the casing and define a multitude of chambers among the baffles, spacers, and outer housing. The baffles shear propellant gases away from the projectile path and through openings or ports into additional chambers formed between the spacers and outer housing. The arrangement of baffles and spacers provides flow-impeding paths, dispersion, and controlled expansion of gases and lowers gas temperature to reduce audible noise and observable signature of the muzzle blast.

The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis defining a passage for a projectile and propellant gases to emerge from the muzzle opening. A plurality of serially placed baffles of symmetrical or slanted orientation and intervening coaxial spacers are positioned within the casing and define a multitude of chambers among the baffles, spacers, and outer housing. The baffles shear propellant gases away from the projectile path and through openings or ports into additional chambers formed between the spacers and outer housing. The arrangement of baffles and spacers provides flow-impeding paths, dispersion, and controlled expansion of gases and lowers gas temperature to reduce audible noise and observable signature of the muzzle blast.

A window-type ball grid array (WBGA) semiconductor package with a lead frame as a chip carrier and a method for fabricating the same are provided. The lead frame has a plurality of leads encompassing an opening, each lead having an upper surface and an opposing lower surface. A resin material is pre-molded on the lower surfaces of the leads, with wire-bonding portions and ball-implanting portions defined on the leads being exposed. At least a chip is mounted on the upper surfaces of the leads and covers the opening, allowing the chip to be electrically connected to the wire-bonding portions of the leads by a plurality of bonding wires via the opening. Then, an encapsulant is formed to encapsulate the chip and fill into the opening for encapsulating the bonding wires. Finally, solder balls are implanted on the ball-implanting portions of the leads to complete fabrication of the semiconductor package.

A modular plastic floor tile has a body of a first polymer compound and features overmolded onto the body from a second polymer compound. The compounds may be different from each other in hardness and / or color. The features may include raised pads on the upper surface and / or skins on support member cores downwardly depending from the tile lower surface. The pads on the upper surface may be injection-molded from the lower surface through through-holes. Lateral edges of the tile are provided with latches which fit into loops with an interference fit. The loops flex in order to impose a compressive force on mating tile edges. The tile may have an overmolded peripheral seal.

A modular plastic floor tile has a body of a first polymer compound and at least one skin overmolded onto the support member core from a second polymer compound. The compounds may be different from each other in hardness and / or color. Crush pads are formed from the first polymer and are disposed to be below the general lower surface of the tile. The crush pads provide a tight overmold shutoff and prevent flashing of the second polymer compound when the support member is formed.

A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water, or space heaters, and the like.

The invention discloses a camera shooting component. The camera shooting component comprises a first transparent part, a camera, a flashlight and a light blocking part, wherein the first transparent part comprises a first holding hole and a second holding hole; the camera is held in the first holding hole, the flashlight is held in the second holding hole, and the light blocking part is held in the second holding hole and sleeved on the flashlight so as to shield the light ray emitted from the flashlight to enter the camera. The invention further discloses a mobile terminal. The light blocking part is arranged between the flashlight and the second holding hole so as to isolate the flashlight from the camera held in the first holding hole; the light ray emitted by the flashlight in working is absorbed or reflected by the light blocking part, and cannot enter the first transparent part from the edge of the second holding hole; the light ray cannot be transmitted to the camera, the channeling light is avoided, the flashlight cannot influence the normal work of the camera, the shooting effect of the camera shooting component is improved, the shot picture and video frame are real, and the user experience is improved.

The invention discloses an application program starting control method and device. Starting of an application program locked by safety software is controlled by means of system service used for processing safety service in a system framework layer. The method includes the steps that after the safety service monitors a command to start the application program, the safety software in an application program layer is called; the safety software executes a user authentication and verification process on the basis of a starting event; the system framework layer determines to start or lock the application program according to a user authentication result. Due to the facts that the application program is not started directly and the safety software is called back, the application program can be started only when user authentication is successful, and the application program is locked when authentication fails, so that the problem that the application program flashes due to the fact that the application program is started firstly and then the safety software is used for locking the application program is avoided, and the problem that CUP time is wasted in timed training in rotation is avoided.

Modular plastic floor tiles have elongate drainage vents formed to extend from the general upper surfaces of the tiles to general lower surfaces thereof. In a two-shot injection molded embodiment, the vents are laterally spaced from locations of overmolded features, and may be disposed within channels defined by downwardly depending support ribs. In one embodiment, groups of elongate vents are disposed around respective fill points in radiant fashion, so as to minimize the impedance to polymer flow within the injection mold. The vents may be radiussed at the tile's upper surface to enhance their fluid collecting capability.

The invention relates to a method for welding an insulated frame body and a bipolar plate / a microporous diaphragm of a battery with a bipolar structure by laser, wherein a laser from a laser source is focused on an opaque plate surface of the bipolar plate or the microporous diaphragm through the semitransparent frame body so as to melt an upper and a lower plastic plates of an irradiated part and thus to allow the two plates to be melted together under the effect of pressure. The method of the present invention improves the welding efficiency and greatly reduces reject rate. Besides, the method of the invention has the advantages of labor force saving and cost saving. The present invention also relates to a device of for welding the insulated frame body and the bipolar plate / the microporous diaphragm of the battery with a bipolar structure by laser.

The invention discloses a camera module group comprising a first transparent member, a camera, a flash lamp and a light blocking layer. The first transparent member includes a first accommodation hole and a second accommodation hole; the camera is accommodated in the first accommodation hole and the flash lamp is accommodated in the second accommodation hole; and the light blocking layer is arranged between the first accommodation hole and the camera. In addition, the invention also discloses a mobile terminal. The light blocking layer is arranged between the camera and the first accommodation hole and the camera is isolated from the flash lamp accommodated into the second accommodation hole. When the flash lamp works, emitted light enters from the edge of the second accommodation hole and passes through the first transparent member, and then the light is absorbed or reflected by the light blocking layer. Because the light can not be transmitted to the camera, light crossing can be avoided; the flash lamp does not affect normal working of the cameras, thereby enhancing the shooting effect of the camera module group; and the shot photo and video picture are real, so that the user experience can be improved.

A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water or space heaters, and the like.

The invention discloses a webpage input method and device for a mobile terminal device. The method includes when a user performs webpage input in the mobile terminal device, using a third-party keyboard view coverage system to preset a keyboard view; establishing a system input box with hidden attributes in the mobile terminal device, and associating the third-party keyboard view with the system input box; receiving characters input by the user through the third-party keyboard view, processing the received characters input by the user through a third-party input method software development kit, and inputting the processed target characters into the system input box; acquiring a webpage focus input box, and inputting the target characters in the system input box to the webpage focus input box. By means of the method, the problems of keyboard view flashing during webpage input through traditional third-party software, input word dislocation and inconsistence between fonts and webpage styles can be solved.

A method for fabricating semiconductor packages is proposed. A plurality of substrates each having a chip thereon are prepared. Each substrate has similar length and width to the predetermined length and width of the semiconductor package. A carrier having a plurality of openings is prepared. Each opening is larger in length and width than the substrate. The substrates are positioned in the corresponding openings, and gaps between the substrates and the carrier are sealed. A molding process is performed to form an encapsulant over each opening to encapsulate the chip. An area on the carrier covered by the encapsulant is larger in length and width than the opening. After performing a mold-releasing process, a plurality of the semiconductor packages are formed by a singulation process to cut along substantially edges of each substrate according to the predetermined size of the semiconductor package. A waste of substrate material is avoided.

The present invention relates to an improved cyclic steam injection oil production method for raising recovery efficiency of oil reservoir and development effect. Said method includes the following steps: steam injection: injecting steam with enough quantity into the oil well; water injection: according to the concrete oil reservoir condition continuously injecting water with 1 -150 deg.C; and sealing well: making limited production.

A limited flash-over electric power switch uses a dielectric gas regulator and a flash-over arrestor to greatly diminish the occurrences of high voltage flash-over during operation of a circuit interrupter. The dielectric gas regulator prevents the flow of the dielectric gas into the arc gap during an initial portion of the opening stroke of the interrupter contacts. Once the arc gap is sufficiently wide to greatly diminish the likelihood of a high voltage flash-over, the dielectric gas regulator allows the dielectric gas to flow into the arc gap to extinguish the arc. The flash-over arrestor snubs out incipient flash-over that may occur as the arc attempts to reform across the arc gap. The flash-over arrestor may be a conductive ring located on the interior surface of the nozzle in the region of the orifice.

The invention provides an asphalt mixing plant aggregate gradation online detection and overflowing prevention control method and system. The system comprises a plurality of feeding bins, a pluralityof aggregate conveying belts, terminal equipment, a PLC controller, a frequency converter and a plurality of motors, wherein the quantities of the feeding bins, aggregate conveying belts and motors are the same; an aggregate conveying belt is arranged under each feeding bin; a camera obscura is fixedly arranged on a guide rail of each aggregate conveying belt; light equipment is arranged in the camera obscura; an image collector is arranged at the top of the camera obscura; the terminal equipment is connected with the image collector, so as to receive and process collected images; the terminalequipment is connected with the PLC controller, so as to send a velocity ratio required to be achieved by each aggregate conveying belt; the PLC controller is connected with the frequency converter;the frequency converter is connected with all the motors; each motor is connected with an aggregate conveying belt, so as to perform speed control. The system can ensure that aggregate gradation is qualified and matching requirements are met, and can effectively prevent the phenomenon of overflowing during asphalt mixing.

A semiconductor package and a method for fabricating the same are proposed, wherein, in a molding process for encapsulating a semiconductor chip mounted on a substrate, a mold is used with a molding cavity formed with a plurality of recess portions relatively smaller in height, and with a plurality of air vents for connecting the recess portions to outside of the mold and for ventilate air in the molding cavity. This allows a molding resin used during molding to slow down its flow when flowing into the recess portions, as the molding resin rapidly absorbs heat transmitted from the mold and is increased in viscosity thereof. The slowed down molding resin can therefore be prevented from flashing out of the air vents, so that quality and appearance of the fabricated semiconductor package can be well assured.

The invention discloses a display screen assembly. The display screen assembly includes a liquid crystal panel, a backlight module, a camera and a silica gel sleeve; the backlight module is located atone side of the liquid crystal panel and is provided with a first through hole; at least part of the camera is contained inside the first through hole; the silica gel sleeve sleeves the camera, is incontact with the liquid crystal panel and separates the camera from the backlight module in the through hole, and therefore light leaking from the backlight module is prevented from entering the light inlet face of the camera. The invention further discloses electronic equipment and a production method of the electronic equipment. The silica gel sleeve separates the camera from the backlight module in the through hole, therefore, the propagation path is blocked that the light which leaks from the backlight module through the first through hole enters the light inlet face, that is to say, thesituation is avoided that the light of the backlight module runs to the camera, and the shooting effect of the camera is improved.

A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water or space heaters, and the like.

The invention discloses a call / short message intercepting method and device of a mobile device. The method comprises the steps that call information / short message information are obtained at a framework layer; the call information / short message information are transmitted to an application layer at the framework layer; at the application layer, intercepting judgment is carried out on the call information / short message information according to preset call / short message intercepting information, the result information of intercepting judgment is fed back to the framework layer; at the framework layer, when the result information of intercepting judgment is that interception is not needed, call received / short message received event informing operation is executed, and when the result information of intercepting judgment is that interception is needed, the call received / short message received event informing operation is not executed.

Radiant energy from a semiconductor wafer which is determined from the theoretical value of black body radiation and the actually measured result of an output from a photodiode are brought into correspondence with each other, and a table showing a correlation therebetween is acquired and stored on a magnetic disk. When a semiconductor wafer to be treated is irradiated with flashes of light from flash lamps, the photodiode receives radiant light emitted from the semiconductor wafer. A controller determines, from the output from the photodiode, the radiant energy emitted per unit time from the semiconductor wafer irradiated with flashes of light, based on the acquired table. The controller further determines the surface temperature of the semiconductor wafer from the determined radiant energy.

An inflator including a chamber that houses a quantity of inflation gas. The chamber is sealed by a burst disk. A punch is also added. The punch is positioned proximate the burst disk. An initiator is also added to the inflator. The initiator includes a cylinder storing a quantity of ignitable material. The cylinder also includes a folded wall with a closed end, wherein upon ignition of the ignitable material, the folded wall unfolds causing the punch to fail the burst disk. The inflator may also be designed such that the folded wall and the closed end retain all of the products formed by ignition of the ignitable material within the cylinder. The inflator may also be designed such that actuation of the initiator does not cause a flash.

The invention provides a high-performance historic site repair material and a preparation method thereof. The repair material comprises the following raw materials: 191-287 parts of sticky rice pulp, 115-185 parts of lime, 0-4 parts of brown granulated sugar, 344-398 parts of fine aggregates, 204-268 parts of complex mineral admixture, 11-12 parts of reinforcing agent, and 0-19 parts of mineral pigment. The invention further provides a preparation method of the repair material. The preparation method comprises the following steps: weighing all the raw material according to weight, and forcibly stirring evenly to obtain the repair material. Amylopectin in the sticky rice pulp is a highly branched macromolecule, the setting and hardening processes of the lime and the pozzolanic reaction of the complex mineral admixture are influenced, the strength development of the material is similar to biomineralization process, and a microstructure formed in the process endows the repair material with higher strength and toughness. Furthermore, the material has good compatibility with materials of a historic site body.

A modular plastic floor tile has a body of a first polymer compound and features overmolded onto the body from a second polymer compound. The compounds may be different from each other in hardness and / or color. The features may include raised pads on the upper surface. The pads on the upper surface may be injection-molded from the lower surface through through-holes. Crush rings on the upper surface of the floor tile, around the perimeter of the pads, provide a tight overmold shutoff and will substantially prevent flashing of the second polymer compound.

A plastic floor tile is formed by molding a body of a first polymer compound and overmolding features onto the body from a second polymer compound. The compounds may be different from each other in hardness and / or color. The overmolded features may include raised pads on the upper surface of the tile. The pads on the upper surface may be injection-molded from the lower surface through through-holes, which are smaller in area than the area of the pads.

The application discloses a display screen component. The component includes: a liquid crystal panel; a backlight module, which is located at one side of the liquid crystal panel, and is provided witha first through hole; a camera, which is at least partially accommodated in the first through hole; and a light shielding member, which is at least partially located between the liquid crystal paneland the camera, and is used to block light rays, which are leaked by the backlight module, from entering a light entering surface of the camera. The application also discloses electronic equipment anda manufacturing method of the electronic equipment. The hole is opened under the display screen component for placing the camera, space occupied by the camera in a display area of the display screencomponent is reduced, a screen occupying ratio of the electronic equipment is increased, the light shielding member is compressed between the liquid crystal panel and the camera, a propagation path which is of the light rays leaked by the backlight module at the first through hole and to the light entering surface of the camera is blocked, that is, light channeling from the backlight module to thecamera is avoided, and a shooting effect of the camera is improved.

A system and method for improved flow measurements for LCG, such as liquid petroleum gas (LPG), is disclosed. Embodiments of the present technology detect the presence of a vapor in a fluid flowing in a mass flow meter. A control valve is then adjusted to provide enough back pressure to prevent the measured liquid from flashing and to reduce the presence of vapor in the fluid flowing in the mass flow meter. By keeping the fluid in liquid form, the present technology reduces the vapor flowing in the mass flow meter, increasing the accuracy of mass flow and other measurements. Utilizing a similar principle of vapor detection, embodiments of the present technology provide for improved average parameter value calculation, such as average density calculations and equivalent liquid volume calculations.