PCB - JLCPCB Q&A

minimum distance between hole of a via to round pad

For my project I'm using a component the T8F81C2 which has which is a 81-FPGA (5 x 5), here they recommend using pad sizes......

1 Reply Asked by 33*******2A

untented vias and HASL

Hi! What happens to untented vias (0.3mm drill, 1mm-thick 2-sided board) or open vias in pads when the board goes through ......

1 Reply Asked by 80*******7A

What is Your IPC Grade Standard for Rigid Circuit Boards?

Hello, On your blog, you have a page specifying that you adhere to IPC-6013 Class 2 for Flexible Circuit Boards: https://a......

1 Reply Asked by 25*******0A

PCB Oblong hole error

Hi Sir I was received the ordered 2 kind of sample PCBs. Thanks greatly for fast delivery and cheap price. But, there are ......

1 Reply Asked by 94*******9A

Press Fit Holes and File Upload

Hello, I saw you can do a press fit hole with 0.05mm tolerance. I will need that done for the next board I am doing. Where......

1 Reply Asked by 43*******3A

Flex Gold fingers with notches

Hello, Amphenol 59453 (SFVL) series require locking notches like these. Can you manufacture these?

1 Reply Asked by 26*******6A

Minimum spacing between electrical conduction tracts and heatsink pads on copper core PCBs

The minimum spacing for traces is 0.1mm. How much space must there be between a heatsink pad on copper core PCBs and a “no......

1 Reply Asked by 84*******0A

3D Barcode from batch to batch

If I want a repeat order, how do I amend the unique number inside the 3D barcode?

1 Reply Asked by 22*******0A

PCB outline bit size

Hi - I'd like to put some fine details on my board outline. What is the router bit size used to cut the board outline for ......

1 Reply Asked by 26*******2A

ENEPIG Finish

Do you offer ENEPIG Finish?

1 Reply Asked by 49*******2A

Blind Via Support

Do you support blind vias in your PCB manufacturing process?

3 Replies Asked by 81*******3A

Slot holes for RCA jack in EAGLE footprint

Attached is the footprint of a RCA jack. The yellow pads (in Dimension layer) over solder pads are the slot holes for foot......

1 Reply Asked by 63*******2A

V-countersink hole

I found the following information: https://www.jlc.com/portal/q6i44031.html Will JLCPCB also support V-countersink hole so......

1 Reply Asked by 85*******5A

Silkscreen over pads

Hello! I have a question, in my design I put some silkscreen on a pad that does not have copper on the front layer. The Ki......

1 Reply Asked by 90*******3A

Expose Aluminium on a Aluminium PCB

Short Version: Can we expose the Aluminium core of a Aluminium PCB to a surface? And if so, how? Is there a Gerber layer w......

1 Reply Asked by 23*******7A

Panel Size

Hello, I am looking for producing panels and I couldn't find information of what would be the maximum size (area) of a pan......

1 Reply Asked by 92*******3A

V-Cut and actual PCB dimention

When I put a V-Cut line or text on the outline layer, the PCB uploader calculates larger dimensions than the actual size. ......

1 Reply Asked by 24*******9A

Detect Isolated Unconnected Vias Warnings

I have a problem with the DFM analysis reporting warnings from the "Detect Isolated Unconnected Vias" check. There are fou......

1 Reply Asked by 87*******6A

different silk screen on order

Hello, is it possible to have a different silkscreen on this order if i reorder like this order W202411160047293 ? we need......

1 Reply Asked by 32*******8C

Hole size in mm and thou

Hi, in my design, i used some holes at metric dimensions and some holes are at imperial system. Below is the current summa......

1 Reply Asked by 89*******5A

PCB - JLC3DP Q&A