What is the keyboard plastic paper double sided circuit board made of

It is made of PET film as the base material and printed into the required circuit using conductive silver paste.

FR-1: Flame retardant copper clad laminate phenolic paper laminates.

It should be called peelable gum.

If it is the kind of transparent packaging with bubbles underneath, the transparent film on the top is PE, and the bottom is not very clear.

There is a copper skin on both sides, and there is no plating hole in the middle to connect the false double-sided board.

The selection of circuit board is generally based on the cost of the board, the complexity of the circuit, and the size of the area.

Double-sided circuit boards are mainly used to solve the complex design and area limitations of circuits, and components are installed on both sides of the board, with double-layer or multi-layer wiring.

As for which fields are used, as long as there are circuit boards for electrical appliances, they can be used, but because of single-sided and double-sided boards, the cost of single layer and multi-layer is different, and the more surfaces and layers, the higher the cost. Therefore, designers generally meet the requirements of assembly and calculate at the lowest cost.

Single-sided single-layer boards that are common in electrical appliances: color televisions, audio amplifiers, induction cookers...Single-sided double-layered: air conditioner, refrigerator, set-top box, VCD ***....Single-sided multi-layer: computer motherboard, LCD TV....

There are many household appliances.

Zhuhai Jinglihua circuit board ****, **0756-5236628 to 0

This ** is a large amount and it is not easy to find a manufacturer.

Make the front and back of the heat transfer paper, then paste one side, then make the hole on that side, and then the other side to the pad hole, transfer the other side, and you're done.

Use a board with copper foil on both sides.

If you want to build a circuit board factory, you should have a bottom, right?

If these equipment are complete, it is not possible to buy them for a few hundred watts.

Cutting machine, drilling machine, electroplating series equipment, grinding machine, film remover, film machine, ** machine, developing machine, etching machine, AOI inspection machine, UV light curing machine, screen printing machine, baking oven, punch, CNC gong board, V-cut machine, take-up machine, open short circuit testing machine and surface treatment and other circuit board equipment.

Not to mention that these equipment are expensive, your plant facilities must also have complete procedures such as environmental protection, which is enough for you to worry about.

If you purchase all the new equipment and facilities, it is estimated that the registered capital is more than 1000w. If it is an acquisition, it will save money and trouble, about 400 600w.

I'm sorry that the last time I told you was for my overview of the manufacturers that can make double-sided and multi-layer circuit boards.

In fact, for someone like you who is just starting out and doesn't have enough strength and wants to start a business, you can buy it as I said last time. It's much easier for you to partner with someone else.

Of course, you don't have to buy all of them, but only buy some second-hand equipment with basic basic processes. Outsourcing processing is done for sequences without equipment. For example:

Drilling outward, forming outward. This saves a lot of money. A new CNC drilling rig costs tens of thousands to hundreds of thousands.

The forming punch also costs tens of thousands, and if the customer wants a gong board to buy a gong machine, it will cost at least hundreds of thousands!

It's not that I'm scaring you, it's impossible to do a double-panel and you can do it for tens of thousands!

Tens of thousands of pieces want to open a PCB factory, our company can probably only do eight layers of boards, double-sided accounts for about 60 percent, I won't talk about the equipment, just the software used to deal with customer materials is more than 100,000 a year, not the cost of purchase, is the annual use fee, you calculate it yourself.

There are more than a dozen processes, and there are no tens of millions or so that can't be done.

I used to do circuit board technology, I calculated that 1 buy a plate frying machine, it costs about 10,000 yuan. 2. Drilling machine, the worst one has to be about 100,000. 3. The horizontal line used for grinding plates, it is estimated that twenty or thirty thousand can be done, and 4 ovens look like twenty or thirty thousand.

5 light plotter, do not know the valuation geometry. Eighteen thousand should be enough. 6. The exposure machine should cost 50,000.

7 gong machines, about 100,000. 8 punches, the same as gong machines! 9 solder spraying machine, also about the same.

If it is related, a lot of things can be sent out. The above are almost all cheaper goods, and the specific ** is also estimated by yourself, and there may be cheaper, or buy other people's second-hand ones. Like those machines, it is possible to sell them to you if you pay a down payment of thirty or forty percent, provided that you have to convince people of your strength, in short, it depends on how you buy them with others.

I also have to leave some money to buy plates, rent water or something, and I have to pay hundreds of thousands.

It's best not to change it, if it's not good, it will make something else bad, so it's recommended to go to customer service to change it, and it won't cost much to rest assured!

g --gnd power ground.

v --vcc power supply positive.

c --clock clock.

d --data data.