Look at the surface traces: See whether the surface of the chip has been polished traces, where the surface of the polished chip will have fine lines and even micro-marks of the previous printing, and some are coated with a thin layer of paint on the surface of the chip to cover up, it looks a little shiny, no plastic texture.
See the device production date and the packaging factory label. The label of the genuine goods, including the label on the bottom of the chip, should be consistent and the production time should be consistent with the device product.The refurbished pieces without Remark have confused labels and different production times.
This is still more, the general formal electronic trading website can be bought, and the quality is also guaranteed, such as Mr. IC, provides capacitors, resistors, transistors and other components, and are original products. Of course, no matter where you buy, you need to be familiar with the identification method, so that you will not buy counterfeit goods.
Measurement parameters: By measuring the parameters of the components, you can initially judge the reliability and performance of the components. For example, you can measure the voltage, current, temperature and other parameters of the components to judge the elementStability and reliability of parts.
1, look at the surface traces: See whether the surface of the chip has been polished traces, where the surface of the polished chip will have fine lines and even the micro-marks of the previous printing, and some are coated with a thin layer of paint on the surface of the chip to cover up, it looks a little shiny, no plastic texture.
2, look at the product packaging. The packaging of the original product can be identified from the label, brightness and other aspects. Look at the product. You can see the mark above the product, the date of delivery, the brightness of the foot (new and old) and so onTo begin with.
3, see whether the surface of the chip has been polished traces. Where the surface of the polished chip will have fine lines and even the micro-marks of the previous printing, some of them are coated with a thin layer of paint on the surface of the chip to cover up, which looks a little shiny and has no plastic texture. Look at the print.
4, different printing. icberlin genuine chips are laser marked or printed with a dedicated chip press, and the writing is clear, unobtrusive, not blurry and difficult to erase.
5, from left to right, you get the sequence number of the pin. The pin ordering of some imported IC circuits is reversed.Shiny, no plastic texture.
2, this is still more, the general formal electronic trading website can be bought, and the quality is guaranteed, such as Mr. IC, to provide capacitors, resistors, transistors and other components, and are original products. Of course, no matter where you buy, you need to be familiar with the identification method, so that you will not buy counterfeit goods.
3, see whether the surface of the chip has been polished traces. Where the surface of the polished chip will have fine lines and even the micro-marks of the previous printing, some of them are coated with a thin layer of paint on the surface of the chip to cover up, which looks a little shiny and has no plastic texture. Look at the print.
4, in the identification of electronic components, can be judged according to its physical form, color, logo and parameters and other characteristics. In addition, when identifying electronic components, it is also necessary to combine the relevant circuit diagrams and instructions.
Hello, there are many kinds of laser coding equipment suitable for electronic components. For example, fiber laser marking machine, ultraviolet laser marking machine, etc., can be marked on electronic componentsBut the price of the latter will be a little more expensive, and the marking effect is better.
, dark material marking has a big advantage. That is to say, most of the metal materials, as well as some specific non-metallic materials such as plastics, can be played by the fiber laser marking machine.
Hello, similar to PCB such products recommend the use of Weiyijie fiber laser marking machine will be relatively better, the specific advantages are as follows: can solve the inkjet machine, screen printing and other can not achieve high-density, small marking effect.
The answer is yes, you can use optical fiber marking machine. But it's not the best choice, as a simple explanation will make clear.
Marking power, in the parameter setting, the power is adjusted by percentage, from 0% to 100% of the output power can be adjusted. The general default parameter is 50% output power. The greater the output power adjustment, the greater the laser output energy, the easier it is to hit the depth.
Fiber laser marking machine black word parametersHow to tune the key is to see what brand and configuration of fiber lasers you use, the popular parameters and laws are: the frequency is higher, the power is larger, the speed is slower, and the filling spacing is dense.
Fiber laser marking machine is composed of power supply system, laser, cooling system, optical scanning system, Q switch, focusing system and so on. Ac power supply respectively to the computer, Q switching power supply, cooling circulation pump, laser power supply, HE-NE laser power supply.
Fiber laser marking machine is made of ytterbium-doped double clad fiber as the laser medium, so that the high power fiber laser can get close to the diffraction limitThe optical fiber laser is used as the base film output, the focused spot diameter is 10 microns, and then the computer controls the deflection of the high-speed scanning galvanometer to change the laser beam path to achieve automatic marking.
Chip nm grade division: 3nm chip, 5nm chip, 7nm chip, 14nm chip and so on. A chip is a piece of semiconductor made of transistors and other devices needed for a circuit (from Jeff Dahmer). Chip is the carrier of integrated circuit.
SSSS4. S1: This type of product has a low resistance value to prevent possible hazards such as electrical sparks. S2: These products have a high resistance value and can effectively resist electrostatic generated elements less than 20 cm away from the collector.
Touch ic, simply put, is an integrated chip that combines single - or multi-touch technology into one, giving electronic devices the ability to sense and respond to finger touches.
At present, integrated circuit products have the following design, production and sales models. 1. IC manufacturer (IDM) designed by itself, fromIts own production line processing, packaging, testing after the finished chip sales. 2. The way IC design company (Fabless) is combined with the standard process processing line (Foundry).
The sensitivity and accuracy of the touch IC depends on the quality and characteristics of the capacitor layer, as well as the design and performance of the IC chip. With the continuous development of science and technology, touch IC has been widely used in mobile phones, tablet computers, TV, car navigation, smart home and other fields.