PCB - JLCPCB Q&A

Do you offer carbon ink coating for silicon button contacts?

1 Reply Asked by 12*******7A

Hello , My PCB has two seperated circuits in the same panel. How much will cost for a v-cut to seperate them? I only menti......

1 Reply Asked by 12*******4A

Selective Epoxy Cap & Fill

I have been using the epoxy cap and filled option on my boards, which applies to all the vias on the board. How do we spec......

1 Reply Asked by 10*******3A

Iwant a calling bell receiver

calling bell speaker reciver

1 Reply Asked by 12*******9A

impedance control service

what is impedance control service?

1 Reply Asked by 42*******7A

User name

I want to change the username of my account. How can I do it?

1 Reply Asked by 42*******7A

Panelize multiple seperate PCBs into single Gerber file

I'd like to know if and how I can either combine multiple seperate PCBs in EasyEda into a single Gerber or how I can uploa......

1 Reply Asked by 69*******1A

Minimum gap between slots on pcb

Hi, what is the minimum gap between two slots in pcb that you recommend?

1 Reply Asked by 12*******5A

Thermal via in pads

I have a IC with a large contact pad underneath it. The IC will consume a lot of power during operation, so it's highly de......

1 Reply Asked by 53*******9A

JLCPCB GmbH

Do you have a PCB manufacturing facility in Germany?

1 Reply Asked by 37*******1A

Pad To Pad minimal distance on flex pcb

Hello, Could you confirm what is the minimal distance between two pads on flexible pcbs? Is it possible to have pads with ......

1 Reply Asked by 12*******6A

What material group according to UL would the FR-4, Nan Ya NP-140F, PCB boards have?

I am looking for what material group according to UL would the FR-4, Nan Ya NP-140F, PCB boards have. I need this to calcu......

1 Reply Asked by 22*******4A

Now to panelize this small irregular PCB

Hello, we have been struggling to properly panalize this design to pass JLCPCB requirements. The final finished product we......

1 Reply Asked by 61*******5A

Which IPC-4761 type is used for plugged vias?

When ordering with "Plugged" via covering, which IPC-4761 process is used? Type IV-B?

1 Reply Asked by 33*******4A

Large PCBs with ENIG coating

I'm trying to order PCBs (FR-4, 2 layers), size 1000x60mm. The order is accepted with the HASL coating, but rejected with ......

1 Reply Asked by 11*******6A

Silkscreen over epoxy filled & capped vias

Can we place silkscreen over vias with the epoxy filled and capped option? I have received several boards using this optio......

1 Reply Asked by 10*******3A

Regarding similar designs

Dear all, I am designing an RF preamp, and also the calibration standards. That means, each pcb has the exact same geometr......

1 Reply Asked by 45*******8A

BGA with pitch 0.35 mm (nrf52840 CKAA)

Hello, I was wondering if you are able to do BGA with pitch 0.35 mm? I read that the minimum pad diameter is 0.25 mm, whic......

1 Reply Asked by 91*******3A

0.5mm BGA copper to hole clearance on inner layers

According to the BGA layout guidance, for 0.5mm pitch BGAs it is suggested to remove unused via pads on inner layers. http......

1 Reply Asked by 82*******3A

For 24hours building time

Why I choose 24 hours building time，but my order still in data preparation after 16hours of order time？

1 Reply Asked by 11*******9A

PCB - JLC3DP Q&A