Keyboard Circuit Board Pcb

Keyboard Circuit Board Pcb

The keyboard is mainly composed of a key cap and a circuit board set below.The keyboard circuit board is the control core of the entire keyboard, located inside the keyboard, responsible for scanning the keyboard position, coding and transmitting signals to the computer.
Materiral:FR4
Board thickness:1.6MM
Layers:2 layers
Surface finishing:HASL lead free
Copper thickness,:1OZ
Soldermask:Black
Silkscreen: White
Size:450mm*150mm

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Product Details


The keyboard is mainly composed of a key cap and a circuit board set below.The keyboard circuit board is the control core of the entire keyboard, located inside the keyboard, responsible for scanning the keyboard position, coding and transmitting signals to the computer.

Keyboard-PCB

keyboard pcb click.jpg


When the keyboard is pressed, the plunger sinks, causing two previously disconnected circuits to close to form a path, and then scans the position in the microprocessor to determine which keyboard is responsible for the press.

chip1.png

Put in the microchip

Each keyboard is a small circuit, also known as a microchip, smaller than a grain of rice, that sends signals to the processor whenever you hit a key or combination of keys.


keyboard pcb chip1.jpg

Fixed microchip

Using tweezers, the microchip is placed in the middle of the printed circuit. It is also connected to an electronic circuit on the circuit board, which carries the signal to the processor.The viscosimeter USES a millimeter of aluminum wire to hold the microchip and circuit together.

After the microchip is connected to the circuit board, the worker tests the connection line and confirms that the signal can be transmitted through the aluminum wire.

keyboard pcb after test.jpg

After passing the test, cover the microchip with vinyl to protect the contact and insulate it.


keyboard pcb assemble.jpgAssemble the circuit board and control the current flow and signal flow on the circuit board according to the original printed mark on the circuit board and the corresponding capacitance and resistance.


keyboard pcb led.jpg

There are also three LED lights for caps lock, number lock and scroll lock.

keyboard pcb solder.jpg


Once installed, the circuit board is fed into the oven and passed through a liquid tin wave, which attaches to the wire and the solder pad on the circuit board, and the electronic components are welded to the circuit board for fixation and connection.

files we need

Please,contract us if you need customized PCB&PCBA,send you gerber file and bom list to sales06@noeya-pcb.com via email.

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