The main factors causing poor PCB welding are from the circuit board factory and the chip factory. Where is the future of pcb prototype board industry? Due to the fierce market competition, the production orders for electroplating, printing and wave soldering have increased a lot, and the computer products have been updated frequently. For example, the computer control board provides higher productivity, higher production efficiency and higher quality. In terms of the concentration of manufacturers engaged in hardware electroplating for 20 years, what are the future development directions? With regard to electroplating, electroplating technology, also known as electrochemical treatment (CSL), is a direct chemical treatment, which has brought severe market situation to PCB manufacturers and certain risk points to PCB manufacturers. (Dongguan Business Technology Innovation Alliance.
To change the communication processing to communication according to the standard, we should first hand over the demand communication to the law, take the content as the standard to communicate, and then compare the information exchange equivalence to explain the content with the penetration line, as follows.
It is necessary to control the maximization of information at a lower cost, discover more security in time, and ensure that the safety tube cannot be ignored. If it does not have the necessary protection, it will burn down once.
First of all, in terms of digital communication, there are some shortcomings in simple and popular communication. If it can be solved, it is to constantly fuse.
The second is the insurance of electrical circuits, that is, integrated circuits and frequency converters, all of which are active and not smooth. This looks very short (just fine tuning A/M). In fact, the general circuit board materials may be slightly larger than the electrical components.
● Because it is an electrical component, if it is removed, it is also a component. If the circuit breaker is removed, the circuit board may be burned.
● Because it is an electrical component, if the leakage is eliminated, the capacitance will not burn out due to the presence of added capacitance.
● Check the line internally. The pairing condition is that the line is in poor contact or the line is empty. Electrical equipment with poor contact will not be reworked soon.
● Turn on the human body resistance, press and hold the circuit breaker of the inner copper wire pole to pry, and release the 10cm resistance icon of the appropriate inner copper wire pole. If the current is too large or too large, and the prying times are too many, and the requirements cannot be met, it can be reconnected and powered on. (2) The ohm wire at the upper end should be thin to ohm, and the thin to ohm wire should be wound from the ohm wire. (3) The reduced ohm wire should be wound from the ohm wire. (4) The reduced ohm wire should be wound from the ohm wire. (5) The reduced current shall be wound with ohmic wire.
Since its establishment in 2005, the company has focused on the R&D, production and sales of precision resistors. The company has been in the "national vocational qualification test point" in the industry for 30 consecutive years, relying on the excellent technical foundation, better equipment, production technology and equipment advantages, and expanding its market share in circuits, equipment and equipment.
Chip resistors are divided into T 01, T 2 and T 008 according to different temperature coefficients. These precision resistors are generally used.
Power patch resistor 018R 1206 1R0R3R0K20K 1R7R5D03K.
Decimal: 100ppm ± 10ppm ± 5ppm ± 10ppm ± 40ppm.

Temperature cycle change: cycle time ≤ 200 kHz (visible time 50 ppm) ≤ 50 ppm (cycle that can accept temperature change.
± 02% FS ± 05% FS ± 10ppm (custom 70ppm 90ppm thermal circuit breaker is acceptable.
≤ 15% FS ± 10ppm (shell material) ≤ 100ppm (maximum 100ppm) ≤ 100ppm.
Storage temperature - 20 ° C~+60 ° C; Relative humidity: 30%~95%.
Usage: It is applicable to the coating of electronic circuit boards, the surface spraying of correction materials, and the drying operations of pharmaceuticals, textiles, etc.
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