Circuit is easy to be damaged in overvoltage, overcurrent, surge, etc. With the development of technology, PCB products are increasingly diversified and complicated, and circuit protection becomes particularly important.
The fact that there are few restrictions on where components can be placed and no "infallible" rules doesn't mean you can do whatever you want.
SMT patch factory control method of temperature and humidity sensitive elements: 1, environmental control, 2, process control, 3, control method
The size of electronic devices is also getting smaller, which requires that the heat dissipation device itself should have certain heat dissipation conditions, and the heat dissipation device itself should also have certain heat dissipation conditions.
One of the important criteria for determining the requirements for recycling components is to know how to place components on the next board. One of the final standards is the type of component packaging required.
Circuit board composition: 1, welding plate: 2, layer number: 3, hole: 4, components: 5, wiring: 6, silk screen: 7, welding resistance layer: 8, positioning hole: 9, filling: 10, electrical boundary:
SMT machining components are repaired: 1. Chip components welding disassembly, 2. Pad cleaning, 3. Assembly and welding of chip components
The lead inductance of patch resistors and capacitors is greatly reduced, which has great advantages in high frequency circuits. The disadvantage of surface mounted components is that they are not easily welded by hand.
This makes it possible to get a prototype in a matter of days, ship a fully assembled product directly to the customer, and offer a price within minutes. As more innovative products and higher quality products enter the market with fewer barriers to creat
In the printing industry, photo platemaking is often used to produce pictures on paper. That is, by taking photos, the picture of the bottom plate, etched on the copper plate or zinc plate, with this copper plate or zinc plate, you can print a lot of pict
This is because the pad will likely be rectangular, which means that the average PCB assembler will consider applying the paste in this shape as optimal.
Electric soldering iron is the main repair tool. The core process of patch processing how to repair components is: diswelding and disassembling of chip components, cleaning of pad and assembly and welding of components.
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