Q&A Community - JLCPCB

Silkscreen Overlapping with Copper Pads

Hello, I use KiCAD to design my PCB boards, and in parts of my design, the silkscreen overlaps with the copper pads. But K......

1 Reply Asked by 80*******0A

PCBA for out of stock component

Hello, I am currently preparing for a project that involves very complex components like high pin count FPGA and MCU's and......

1 Reply Asked by 78*******6A

Adjacent hole drilling

I wish to stack 2 x C3001542 using your footprint RJ45-TH_HYCW61-RJ45-152B How close can I physically have them together s......

1 Reply Asked by 23*******9A

Can you solder some wires to a PCB for power connection?

Can you solder some wires to a PCB for power connection? Like this? the wire is 22AWG 300V Rated. 150mm length. Can I rais......

1 Reply Asked by 23*******5A

Why was my shipping marked so high?

I purchased $23 worth of boards and until recently, had much cheaper shipping options. After temporary tariff changes in a......

1 Reply Asked by 92*******5A

Mu board design is irregular in shape. How much extra does that cost?

My board, approx 33x20mm is shaped as a rectangle with a triangular section missing. Is there a cost per liner mm of cut, ......

1 Reply Asked by 91*******9A

Clearance Between PCB Traces and Pins – Minimum Safe Distance

Hello, I have designed a PCB where the clearance between traces and pins is 0.2mm (200µm). I would like to confirm if this......

1 Reply Asked by 90*******6A

About outline layers when using Protel99SE

I am writing an outline in KeepOutLayer, but the preview in the Gerber viewer does not seem to reflect this. I have also p......

1 Reply Asked by 96*******5A

Pads Enig and HASL surface finish

is it possible have the pads with Enig surface finish on th bottom and HASL on the Top, on the same PCB?

1 Reply Asked by 93*******6A

Multiple designs on single Stencil

I have two PCB designs, that when combined, would both fit on a stencil (360mmx200mm valid area). How would I go about hav......

1 Reply Asked by 86*******5A

Flex PCB for directly soldering to another board

Hello, is it possible manufacture golden fingers on flexible pcb for directly soldering to another board? Sample in pictur......

1 Reply Asked by 26*******9A

Face detector

Want a face detector pcb with components

1 Reply Asked by 95*******4A

Graving a burnt PCB

Good evening, Can you tell me if it's possible to send you a PCB with burnt but still visible traces (sending a single-lay......

1 Reply Asked by 25*******2A

1.8mm thickness

I would like to make the thickness of the PCB 1.8mm.

1 Reply Asked by 69*******7A

What is the breakdown voltage of the dielectric in a JLCPCB aluminum PCB?

We are planning to use a 1mm thick aluminium PCB as a thermal spacer between Mosfets and heatsink in a mains powered inver......

1 Reply Asked by 61*******2A

How much time ENIG finished boards in a vaccum sealed pack will keep its soldering characteristics?

Hello, I need to know how long boards with ENIG finishing in a vacuum sealed package will maintain their soldering charact......

1 Reply Asked by 30*******9A

0.5mm pitch BGA - how to setup for manufacturing in KiCad

Hello, in our application we use 0.5mm pitch BGA package. I read this article https://jlcpcb.com/help/article/BGA-Design-G......

1 Reply Asked by 72*******9A

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