1, the Z1 chip has six transistors, and now its second generation, the Z2, is emptyBorn with 100 transistors on a 10-micron polysilicon gate process, the chip design consists of a simple 10x10 transistor array. Z2 is a leap forward over Z1. Switching to a polysilicon gate process greatly reduced power consumption, but yields were low because there were no pure chemicals and no clean rooms.
2, six-pin patch chip. The six-pin patch chip on the charging treasure is a six-pin patch chip, which is very common, and the six-pin switching power supply oscillation chip, also known as the power management chip. A power bank is a device that can charge mobile devices directly and has its own power storage unit.
3. YesSix-pin patch chips are common. 6-pin switching power oscillator chip, also known as power management chip. It is widely used in LED color TV power board, various chargers, DVD players, set-top boxes and electric car chargers.
4, but the annual classification of which the 6-pin patch thing, 6X is generally a smart chip.
5, there is a screen on the back of the chip is BL, the four corners of the foot above, the patch.
6, the chip of the foot patch screen printing BXMA may be produced by different manufacturers, so the specific chip type is requiredThe chip is welded directly to the printed circuit, and all such patch ics are small in size. At the same time, there are triode, diode, resistor, capacitor, etc., there are patches.
3, the package shape is different, the welding process is different, and the rated power consumption of some components and patches will be different.
1, it depends on the solder qualityThe amount of general solder, I am using about 380℃. Low-temperature solder is definitely lower, but I haven't used it, so I don't know.
2, the welding temperature of the chip IC component is 210°C~225°C. The melting point of the patch solder is generally 179 ° C ~ 188 ° C, and the rosin flux is 200 ° C. Therefore, 210 ° C - 225 ° C is the appropriate reflow temperature for most patch welding. The overall welding temperature should pay attention to the maximum temperature resistance of the components and other conditions. A heat gun is often used when removing or installing a chip integrated circuit.
3, patch ic components weldingThe connection temperature is 210°c~225°c. The melting point of the patch solder is generally 179 ° C ~ 188 ° C, and the rosin flux is 200 ° C. Therefore, 210 ° C - 225 ° C is the appropriate reflow temperature for most patch welding. The overall welding temperature should pay attention to the maximum temperature resistance of the components and other conditions. A heat gun is often used when removing or installing a chip integrated circuit.
4, hello, do you mean working temperature or welding temperature? If welding, the maximum tolerance temperature of the PPA part of the LED lamp bead is about 260 degrees Celsius, so the welding temperature can not exceed the temperature, and should be controlledMake good time to avoid PPA heat deformation and yellowing.
5, when welding, 20W internal heat type electric iron should be selected, and the electric iron must be reliably grounded. When welding, the welding time of each lead cannot exceed 4s, and the continuous welding time cannot exceed 10s. To use a low-melting flux, the general melting point of the flux should not exceed 150 ° C. For MOS tubes, the installation should be welded first in the sequence of S pole, then G pole and finally D pole.
2, the package shape is different, the welding process is different, and the rated power consumption of some components and patches will be different.
3, patch and in-line are common chipsIn the form of a package, they are functionally the same, but the chip size of the patch is smaller, and it will consume less power compared to the in-line chip. However, the in-line chip also has its advantages, if the hole plate is welded, the chip package is not good for welding.
1. In terms of configuration, Xiaomi TV E43S is obviously better. The Mi TV E43S uses a configuration of 2GB of RAM and 32GB of flash memory, while the other four models only have 1GB of RAM and 8GB of RAMConfigure. At the same time, the Mi TV E43S is also equipped with a 12-nanometer process Amlogic T972 chip, and its A55 quad-core processor provides faster performance and lower power consumption. They all have a 60Hz screen refresh rate and a straight down backlight.
2. Take Zhaoyang E43A equipped with 2G memory and 320G hard disk as an example. It adopts Intel Core 2 duo processor P8700 and is equipped with high-performance Intel PM45 ICH9M chip . In terms of storage, 2GB is standardDDR3 dual-channel memory, up to 4G chip ; 320G SATA hard disk, loaded DVD burning drive supports DVD, dual layer disc burning; The professional NVIDIA Quadro NVS 170M independent graphics card ensures smooth reading and display of the machine.
3, Lenovo Zhaoyang E43A-T5800 Product series: Zhaoyang K43 Processor Model: Intel Core 2 dual-core T5800 processor frequency (GHz) : 0Centrino Technology: Montevina Centrino 2 Standard Memory capacity (MB) : 1024 Hard disk capacity (GB) : 250, Display chip: nVIDIA Quadro NVS 160M Motherboard is Intel PM45 ICH9M Upgrade: The graphics card cannot be upgraded, and the CPU can be replaced with a higher T7600 cpu.
4, x TV is ultra-narrow frame design, the screen thickness is only 9mm, the TV uses a new intelligent chip, it supports artificial intelligence voice system, the whole TV operation can be completely by voiceInteractive to complete, 4x uses Dolby DTS dual decoding sound configuration, its sound quality level is high, three-dimensional surround sense is strong.
5, exchange motherboard is generally to get after-sales and after-sales exchange, but the conditions of exchange motherboard are generally to see the maintenance traces of the motherboard to exchange, exchange motherboard is cheaper than a single purchase motherboard.
6, Lenovo Chaoyang E43A boot prompt F1 after taking off the wireless network card normal, what is the problem. Get it. Thank you.