, glue encapsulation: the encapsulation of Lamp-LED adopts the form of potting. The process of potting is to first inject liquid epoxy into the LED molding cavity, and then insert the pressure welded LED bracket, put it into the oven to let the epoxy cure, and then the LED is molded out of the mold cavity.
Chip check. Whether there is mechanical damage and pitting on the surface of the material, and whether the chip size and electrode size meet the process requirements. Expand.
Solid crystal - welding wire - filling glue (molding) - cutting (separation) - splitting - packaging - storage Solid crystal is commonly said to use solid crystal glue (silver glue, insulating glue) to stick the chip inOn the bracket, then bake the glue dry and proceed to the next step.
Cleaning steps: Use ultrasonic cleaning PCB or LED support, and dry.
Finally, the LED chip is inspected (VC) and labeled. The chip area should be in the center of the blue film, and there are a maximum of 5000 chips on the blue film, but the number of chips on each blue film must be ensured to be not less than 1000Pellet, chip type, lot number, quantity and photoelectric measurement statistics are recorded on the label, attached to the back of the waxed glossy paper. In general, the LED production process is divided into two parts: First, the gallium nitride (GaN) -based epitaxial sheet is made on the substrate, and this process is mainly done in the metal-organic chemical vapor deposition epitaxial sheet furnace (MOCVD).
Install the power supply: check whether the aluminum substrate is crooked, stick it tightly, load the power supply from the side with "LED" and "LED-" on the aluminum substrate into the aluminum tube, load the white wire end first, the longer white wire through the other side of the aluminum tube, and put the power supply along the sideInto the aluminum tube.
LED chip sorting is very difficult, the main reason is that the LED chip size is generally small, from 9mil to 14mil (0.22-0.35 microns).
LED chip inspection Microscopy: whether there is mechanical damage and pitting pits on the surface of the material (lockhill chip size and electrode size meet the process requirements whether the electrode pattern is complete LED expansion because the LED chip is still arranged closely after the blade is small (about 0.1mm), it is not conducive to the operation of the post-process.
Chip inspection Microscopy: Material tableWhether the surface has mechanical damage and pitting chip size and electrode size meet the process requirements; Because the LED chip is still arranged closely after slicing, the spacing is very small, which is not conducive to the operation of the post-process.
2, the core has. The core of the general CPU is a multiple of 2, which means that because the computer's data are binary, the core of a multiple of 2 has an advantage in computing, and if it is an odd core, it will produce a great waste of efficiency and is inappropriate. 3, because there are too many circuits and contacts in the chip, there is an error in one place, and the final result is a considerable error, which must be tested one by one. Packaging is essentially labor intensive. In this industry, the gap between China and the world is not large, and even in a leading position. Fourth, equipment.
4, noStep 1: Open a blank ppt. 2, the second step: in the menu bar "Insert" select "picture - from file", select the picture to be cropped and open it. 3, Step 3: Click the "Crop" button in the menu bar "Picture Tools". 4, Step 4: Select hexagon from the drop-down options.
5, powerful graphics processing capabilities: Kirin chip is equipped with a powerful graphics processor (GPU), can handle high-load graphics computing tasks. This makes it excellent in areas such as gaming, image processing and video playback.
6, its own defects. PhecdaThe 1000 chip does not support 8K video recording, nor does it support 120Hz and higher screen refresh rate Settings, which is completely a chip that will reduce points for mobile phones for some manufacturers who pay more attention to mobile phone imaging systems and screen display effects.
1, the working principle of Waterview lossless scribing machine First we learned that one of his working principles is that the scribing machine is a kind of cutting machine, the scribing machine is the use of beam irradiation on the surface of the workpiece, so that the irradiated area is local