|Layer Count:||18 Layer||Legend Color:||White Silkscreen|
|Min Hole Diameter:||0.2 MM||PTH Wall Thickness:||18 UM|
|Lead Time:||30 Days||Finished Thickness:||2.2 MM|
3 Mil Printed Circuit Boards,
Silkscreen Printed Circuit Boards,
3 Mil led pcb board
Printed Circuit Boards 18 Layer PCB 3 Mil Trace And Space
1 All dimensions are in MM.
2 Fabricate per IPC-6012A Class2.
3 Dielectric: FR4 Per IPC or equivalent
3 Min Tg: 150DEG
3 Copper: As per stack up
3 UL Rating: 94V0 Minimum
4 Surface finish: ENIG
5 Solder mask material should meet all requirement of the IPC-SM-840E and shall be green in color and applied over bare copper. Vendor may edit solder mask and paste mask as needed.
6 Editing of existing copper layers shall require customer approval.
7 Silkscreen legend to be applied per layer stackup using white non-conductitive epoxy ink.
8 100% continuity testing using database netlist shall be performed.Vendor to identify test passed in secondary side.
9 Vendor to mark date code and logo in legend secondary side.
10 Bow and twist shall not exceed 1.0% of longest side.
11 Vendor to provide panel drawing for customer approval before production
1 One vacuum pcb package should not be over 25 panels based on panel size.
2 The vacuum pcb package sealed must be free to tear, hole or any defects that may cause leakage.
3 The pcb package must be suitable to ensure effective vacuum sealing.
4 Every package must have desiccant and humidity indicator card on the inside of vacuum package.
5 Humidity indicator card target less than 10%.
Q1: What is Turnkey PCB Assembly?
A1: Turnkey PCB Assembly is the complete PCB Assembly process which includes the fabrication of the board, procurement of components to be placed on the board, the PCB assembly process and other testing or quality control processes that are required to give customers the final assembled printed circuit board.
So, when a customer asks for turnkey PCB assembly, this means that they are looking to get a final PCB board and expect the PCB company to provide all the services required from start to finish.
The alternative to turnkey PCB assembly is to get each step in the PCB assembly process done separately or by different vendors. For example, one vendor would fabricate the board, then someone would be responsible for component procurement, and another company for PCB Assembly and testing of the final board. All this requires a significant amount of coordination.