15results about How to "Lower yield" patented technology

The present application provides a resin material supply device capable of suppressing a decrease in yield of a resin molded product. The present application includes: a table capable of supporting a transfer portion capable of holding and transferring a resin material; a resin housing portion housing the resin material; a resin supply portion supplying the resin material supplied from the resin housing portion to the transfer portion supported by the table; an oscillation portion provided at an upper portion of the resin supply portion, the resin material being supplied from the resin supply portion to the transfer portion by oscillating the resin supply portion; and a metering portion provided at a lower portion of the table, the resin material supplied to the transfer portion being capable of being metered.

The invention discloses a secure parallel upgrading method and system for firmware of embedded equipment based on a CAN bus, electronic equipment and a medium, and belongs to the field of embedded systems.The secure parallel upgrading method comprises the steps that an equipment management server generates an upgrading data packet; the server generates a temporary session key through a key derivation function, encrypts firmware to be upgraded by using the temporary session key, and then generates a digital signature for encrypted firmware data by using a private key of the server; the server issues the upgrade data packet to the embedded device in parallel through a CAN bus; the embedded device receives the upgrade data packet, derives the same temporary session key by using a preset fixed key and the received random number, verifies the digital signature by using a preset server public key, decrypts the firmware data by using the temporary session key after the verification is passed, and performs integrity verification; and finally, loading and operating the new firmware according to the firmware effective strategy. According to the method, the problems of firmware version synchronization and low serial upgrading speed are solved, and the efficiency and the safety are improved.

This utility model provides an automatic positioning and suction bag device for large roll paper packaging bags, relating to the field of packaging bag suction technology. It includes a base plate, a support seat mounted on the top of the base plate, a lifting mechanism on the inner side of the support seat, a first mounting frame mounted above the support seat, a feeding chamber mounted above the first mounting frame, a pressure plate mounted on the inner side of the feeding chamber, and a discharging mechanism below the first suction cup and connecting frame. The device uses a suction bag assembly to replace traditional mechanical gripping. The first and second suction cups use negative pressure to suction the edge of the packaging bag opening, avoiding bag damage or detachment caused by improper gripping force, significantly reducing the packaging bag breakage rate. Simultaneously, the combined action of a laser sensor and a second hydraulic cylinder ensures minimal deviation in the bag picking position, guaranteeing precise alignment of the bag opening with the large roll paper conveying path, greatly reducing the bag-fitting defect rate and subsequent sealing leakage problems.

Systems and methods for detecting micro LED arrays using non-contact field effect electroluminescence are disclosed.

This invention provides a method and apparatus for laser debonding, belonging to the field of semiconductor technology. The method includes the following steps: providing a temporary bonding body for a wafer, the temporary bonding body comprising a silicon carrier, an interposer, a carbon-rich thin film, a bonding layer, and a wafer stacked together; in a vacuum environment, irradiating the temporary bonding body with an infrared pulsed laser, causing interface peeling at the carbon-rich thin film, thus completing the laser debonding between the silicon carrier and the wafer. This invention uses a carbon-rich thin film as the laser release layer, reducing costs. It possesses broad-spectrum, high-efficiency absorption characteristics in the infrared laser band, enhancing laser scattering and light-trapping effects, and improving laser energy absorption efficiency. By performing laser debonding in a vacuum environment, impurities such as microparticles generated during interface peeling can be removed from the cavity, avoiding wafer contamination and interference with the laser path, thus improving the cleanliness, stability, and overall device yield of the debonding process.

The utility model relates to the technical field of hearing aids, in particular to a receiver of a hearing aid, which comprises a shell, a receiver, a mounting seat, a cable and a plurality of connecting pieces, a mounting cavity is arranged in the shell, the receiver, the mounting seat and the connecting pieces are all arranged in the mounting cavity, the mounting seat is used for fixing the connecting pieces, and the connecting pieces are positioned between the receiver and the mounting seat. Mounting grooves used for containing the connecting pieces are formed in the mounting base, the mounting grooves and the connecting pieces are in one-to-one correspondence, the connecting pieces are arranged in the corresponding mounting grooves, the head ends of the connecting pieces make contact with the connecting end of the receiver, the cable penetrates through the shell and makes contact with the tail ends of the connecting pieces, and the connecting pieces are arranged in the receiver so that the cable and the receiver can be connected in a transition mode. The welding spot failure risk during direct connection between the cable and the receiver is eliminated, and the assembly reject ratio is reduced; and the cost is reduced, the consumption of solder paste consumables is reduced, signals are optimized, and the contact impedance stability is improved.

This invention discloses a high weather-resistant, alkali-resistant, long-shelf-life cement-based tile adhesive and its preparation method. By weight, it comprises the following components: 32-39 parts silicate cement, 37-48 parts mineral composite aggregate, 2.0-4.5 parts redispersible latex powder, 0-2.0 parts silicone-acrylic modified latex powder, 0.2-0.35 parts cellulose ether, 0.2-0.5 parts plant-based water-retaining colloid, 1.5-3.5 parts mineral fiber, 0.5-1.5 parts nano-reinforcing powder, 0.5-1.2 parts siliceous tempering functional component, 3-7 parts activated zeolite powder, 1.5-3.0 parts modified bentonite, 0.2-0.5 parts calcium stearate, 0.4-0.8 parts calcium formate, 0.1-0.25 parts polycarboxylate superplasticizer, 0.15-0.35 parts silicone powder, and 0.1-0.2 parts powder defoamer. The beneficial effects are: the material has excellent bonding performance, anti-slip properties, and long open paving time, while also having the characteristics of strong resistance to alkali return, resistance to drying shrinkage and cracking, weather resistance and durability, the powder is not easy to absorb moisture and clump, and has a long shelf life; the preparation method is stable and compatible with conventional dry powder mortar production lines, and different compatible grades of products can be produced on the same line, with strong controllability in mass production.

The invention discloses an SMT production line control method and system based on an Internet of Things chip, and relates to the technical field of SMT production line control of the Internet of Things chip, an initial requirement matrix is generated by extracting calculation requirements of each link, and an integrated calculation framework is obtained by integrating heterogeneous calculation frameworks of a multi-core processor and an accelerator module; generating a resource allocation scheme, determining a task dependency graph in combination with interaction data of chip mounter coordinate operation and temperature curve adjustment, processing the task dependency graph by using a graph neural network, and inserting a buffer queue to perform synchronous execution and optimize a task scheduling sequence; and obtaining execution feedback data generated in real-time operation based on the optimized task scheduling sequence, and dynamically adjusting a computing power distribution vector to realize cooperative control of the SMT production line control system. According to the invention, a continuously optimized cooperative control framework is realized, and computing resources can be dynamically allocated and multi-task efficient collaboration can be realized according to real-time requirements of process links.

The present application relates to a kind of wafer conveying mechanical arm clamps, semiconductor processing equipment and wafer conveying method, belong to the technical field of semiconductor conveying equipment, solve the wafer skew problem in the wafer conveying process of the conveying equipment of semiconductor manufacturing equipment in the prior art and the problem of subsequent process quality decline caused by wafer breakage.The present application discloses a kind of wafer conveying mechanical arm clamps, including single group or multiple sets of clamping jaw, the pick-up and placement of wafer are realized in the way of clamping by mechanical arm clamp;Clamping jaw includes fixed part and movable part;Movable part is connected with fixed part by guiding device and anti-falling device, guiding device is guided to the moving direction and trajectory of movable part, anti-falling device is used to prevent movable part from separating from fixed part after moving along guiding device.The present application realizes the self-adjustment of the wafer skew of transmission equipment mechanical hand clamping in semiconductor manufacturing equipment.

The utility model belongs to the technical field of dental medical instruments, and relates to a key and dental handheld equipment. The key comprises a key body, a first movable ring and a first connecting arm, the key body is located in the first movable ring, the two ends of the first connecting arm are connected with the key body and the first movable ring respectively, the first movable ring is provided with at least two installation positions, the multiple installation positions are distributed on the two sides of the key body, and the installation positions are used for being connected with the inner side of the shell. The key body is used for being arranged corresponding to the through hole of the shell. According to the application, an effect of pressing deformation to trigger the switch is achieved through cooperation among the key body, the first movable ring and the first connecting arm without using a rubber coating process to wrap an elastic material on the surface of the shell and without setting a veneer on the surface of the shell, so that the process steps, the manual processing cost and the rework cost are reduced, and the production efficiency is improved. The quality and appearance reject ratio are reduced, and the size of the dental handheld equipment applying the dental handheld equipment is reduced.

This application provides a single-cell battery, an energy storage device, an energy storage system, and a power supply system. The single-cell battery includes a casing; a cell, including a cell body and a tab connected electrically; a restraining member, including a side plate, a bottom plate, and a guide plate, the side plate being disposed around the outer periphery of the bottom plate and the bottom plate and the side plate defining a mounting groove, the bottom plate having a through groove, the guide plate protruding from the surface of the bottom plate facing the mounting groove and disposed around the outer periphery of the through groove; a tab passing through the through groove and partially located within the mounting groove; and an end cap assembly disposed on the side of the restraining member away from the cell body, the end cap assembly including an adapter, the adapter being connected to the end of the tab away from the cell body; the dimension of the tab passing through the through groove is w1, the dimension of the guide plate along a first direction is w2, the distance from the connection point of the adapter and the tab closest to the cell body to the end face of the tab away from the cell body is w3, then 2≤(w1-w3) / w2≤8.

The application discloses a DRAM aging test data analysis system and relates to the technical field of DRAM aging test; in order to quickly lock the possible failure reason; including a historical test database, a test data input module, a yield data judgment module, a Bin Map concentration analysis module, a Slot correlation analysis module, a BIB correlation analysis module, an OVEN correlation analysis module, a program Bin Gap analysis module, a program failure item analysis module, a failure model analysis module, a failure model input module, an analysis report and early warning module. The application establishes the corresponding connection through the correlation of the yield and the machine, automatically compares whether abnormal points appear in the test process in the production process, such as low yield, failure concentration, Bin Gap and continuous fail, so that abnormal data can be found in time, and the timeliness of data analysis is improved.

The invention provides block type polyimide resin as well as a preparation method and application thereof. A molecular main chain of the block type polyimide resin comprises hard segment units and soft segment units which are alternately distributed, the soft segment units contain more flexible groups and are low in glass-transition temperature, and the hard segment units contain more rigid conjugated groups and are high in glass-transition temperature. When the temperature rises and the soft segment unit is changed into a high-elastic state, the hard segment unit is still maintained in a glassy state, so that the block type polyimide resin can still maintain certain mechanical strength and enhance the processability while having better melting and bonding capacity. The block type polyimide resin is relatively good in thermal stability, mechanical property and dimensional stability, and has a very good application prospect.

An air blowing device comprises a cavity, a piston, at least one elastic piece and a rotating piece. The cavity is provided with an air outlet. The piston is movably arranged in the cavity and provided with a piston head, and a gas containing space is formed between the piston head and the gas outlet. The elastic member is adjacent to the piston. The rotating member is coupled to the piston. The rotating part is suitable for rotating to drive the piston to resist the elastic force of the elastic part to move relative to the cavity, so that the piston head is away from the air outlet. The rotating part is suitable for continuously rotating to release the piston, so that the piston head moves towards the air outlet through the elastic force of the elastic part to drive the air in the air containing space to be output through the air outlet. In addition, the invention also provides an image acquisition module comprising the blowing device.