Keyboard PCB

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Keyboard PCB

The double layer pcb solves the difficulty of the staggered of the wiring in the single -panel.

Application: Consumer electronics field
Characteristic: Min. width/space: 4/4mil, Aspect ratio:12:1
Material: FR4, 94V-0, RoHS
PCB Layer: 6 Layers
Thickness: 1.6mm
Copper thickness: 1oz - 2oz
Surface finished: Immersion gold (2u")
Solder Mask: Green
IPC Standard: IPC 600 Class 2 & Class 3
Testing: AOI Inspection & 100% E-test

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Keyboard PCB – Technical specification

Feature	Technical specification
Number of layers	2 ~ 52 layers
Materials	FR4, （ 94V-0, Tg 135, Tg 150, Tg 170 ）
Solder Mask Color	Green, Blue, Black,White, Red, Yellow, Purple, Pink, Grey
Characters	White, Yellow, Black, etc.
Board Thickness	0.2mm - 6.0mm
Copper weights (finished)	0.5oz - 6.0oz
Minimum Trace/Space	0.07mm / 0.07mm
Minimum dimensions	5mm x 5mm;
Maximum dimensions	610mm x 600mm
Minimum mechanical drill (PTH)	0.15mm
Minimum laser drill (blind/micro hole)	0.1mm
Surface finished	HASL - Hot air solder leveling Lead - free HASL - RoHS ENIG - RoHS Immersion Silver - RoHS Immersion Tin - RoHS Golden finger - RoHS OSP - RoHS
E-Testing	100% E-Test , Flying Probe Test & Fixture Test
IPC Standard	IPC 600 Class 2 & Class 3

What is a Double layer PCB

The double layer PCB is a board with double sided wiring on the board. An important feature of the double layer PCB is that it has guide holes to connect the wires on both sides into a circuit. The wiring of the double layer PCB can be interleaved, which is the biggest difference from the single-sided board; the double layer PCB is more suitable for complex circuits and has a wider range of use.

Double layer PCB is an extension of single sided. When single layer wiring cannot meet the needs of electronic products, double layer PCB is used. Both sides have copper cladding and traces, and the lines between the two layers can be conducted through vias to form the required network connections.

The double layer PCB solves the difficulty of the single sided board because of the staggered wiring.

Double layer PCB have many advantages, such as easy and simple wiring, less labor-intensive wiring, and shorter line lengths.