How to send edge plating annotation diagram to JLCPCB?

Q: JLCPCB edge plating guideline says this - "supply an annotated diagram showing which edges to plate".

I have this edge plating annotation diagram ready. However, there is no place to actually include this diagram during the PCB order process in the JLCPCB website. So my question is, where to attach this edge plating annotation diagram?

On a side note, I also included detailed fabrication notes (board dimensions, stackup, controlled impedance, drill summary, etc.) with my PCB and exported this with the Gerbers for JLCPCB, in case they have any questions. However, they mentioned that they would discard all these fabrication notes in an email. How do y'all send fabrication notes to JLCPCB? Is it not required?

A:

1：Edge plating diagram

For edge plating, you can directly design the plating area in the Gerber file (normally on a separate layer). When placing the order, please also add a remark such as “Edge plating as per the dedicated layer in the Gerber”. In addition, we strongly recommend selecting the option “Confirm Production File” during checkout, so our engineers can confirm with you before fabrication.

2: Fabrication notes (dimensions, stackup, impedance, drilling, etc.)

Our engineers mainly follow the Gerber data for production. Other supplementary files in your compressed package (such as English notes, DXF, Excel, etc.) will not be referenced to avoid any conflict with the Gerber. Therefore, please ensure all required parameters are correctly defined in your Gerber files, as these will be used as the sole basis for manufacturing.

① Board dimensions: Just make sure the outline in the Gerber is correct. The website will also automatically recognize the size. If you find the detected size to be inaccurate, you can include the correct dimension in the remarks.

② Stackup: You can select the required stackup when placing the order. For impedance-related designs, you may refer to our impedance calculator to choose the most suitable stackup: https://jlcpcb.com/pcb-impedance-calculator.

③ Controlled impedance: By default, impedance tolerance is ±20%. If you require tighter control (±10%), please contact our online customer service or email our support team (support@jlcpcb.com) to enable the whitelist option. Once enabled, you can select ±10% tolerance. Please also include the impedance details (trace width/spacing, layer location, etc.) directly in the Gerber package and mention in the remarks where this information can be found.

④Drilling: Please design drills in the drill layer. Supplying a drill drawing file in the Gerber package is also recommended.

Overall, as long as your Gerber files are designed clearly, no extra documentation is needed. But for special requirements, remarks + confirm production file are the most effective way to ensure your instructions are followed. #JLCPCB#