Q&A Community - JLCCNC

FR4 Thermal Impedance of 4 layer 45x45mm

Hello, Please let me know what the thermal impedance rating of a 4 layer FR4 1.6mm 1oz outer/1oz inner CU, TG155 circuit b......

0 Reply Asked by 10*******5A

what shipper uses IOSS

is there a way to see what shipper uses IOSS. I don't have issues paying tax, but if not done with the order the customs w......

1 Reply Asked by 22*******3A

PCB with no Copper features at all

Can you manufacture an FR4 board with no Copper at all on either side, just with silk-screen on one side? I would like to ......

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

Can aluminium PCB be bended at least once

Hi! I need to fit aluminium PCB into special curved lighting enclosure, and the PCB should be bended a bit. Is it allowed ......

1 Reply Asked by 21*******1A

Heavy Copper Capability on JLPCB

Hi JLCPCB Support, could you please confirm whether JLCPCB can manufacture PCBs with copper weight ≥3 oz (heavy copper)? T......

1 Reply Asked by 83*******4A

Partial TH assembly - what happens to unused through holes?

We want to only have JLCPCB solder some of the TH parts on our boards because we have a lower cost source for the other TH......

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

QR code prefix: allow more characters

I would like to use a url as the prefix for the qr code. At the moment several characters are not allowed... can you chang......

1 Reply Asked by 34*******1A

Capability for Gold Bumps

Hello, I have a design where I want to add gold bumps to some pins on a flex PCB. These gold bumps would be 70 in total an......

1 Reply Asked by 99*******9A

V-Cut - Which Layer

Hey, I'm looking for a way to manually penalize my board into three pieces. I added lines to User.1 and in Fabrication Too......

1 Reply Asked by 10*******2A

Subject: Question about Surface Finish on Aluminum 6061

Dear JLCCNC Team, I would like to ask about the bead blasting + anodizing surface treatment on Aluminum 6061. Could you pl......

1 Reply Asked by 96*******8A

PCB order configuration string interface

Hi JLCPCB Support Team, When designing PCBs to be ordered via JLCPCB, I (like many users) often create a documentation tex......

1 Reply Asked by 46*******0A

The PCB manufacturer only processed one side

According to the design, it should be a double-sided PCB (or PCBA), but the unit I received is only single-sided. We recen......

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

Analysis of mounted components

If the IC chip mounted on the JLCPCB breaks down, will you analyze the part? I made five units and only one is broken.

1 Reply Asked by 86*******3A

Request for a quotation

Dear all, please furnish an email as to where I can send documents regarding a pcb for a quotation. Thank you Regards Joch......

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

whut is the setup fee and why on checkout it costed 50$?

whut is the setup fee and why on checkout it costed 50$ for my 4x4 led matrix.

1 Reply Asked by 10*******9A

Regarding the Minimum NPTH Diameter

The JLCPCB capabilities page says a NPTH (non-plated through hole) must have a diameter > 0.5mm. However, the drill sizes ......

1 Reply Asked by 27*******8A

Custom panel with milling (routing) and V-scoring

Hello. I want to produce panel combining routing(milling) and V-scoring. I have used a *.gm1 file for milling and a *.gko ......

1 Reply Asked by 52*******9A

4 layer specification

Hello. I am currently designing a 4-layer pcb, and I want to calculate trace width and gap for high speed signal, I need J......

1 Reply Asked by 34*******8A

BGA pad to PAD

my PCB 1-BGA pad 0.26mm dia 2- BGA pad to pad distance 0.14mm 3-via in pad 0.15/0.25mm is this you can easily produce or i......

1 Reply Asked by 32*******3A

Where can a ask for someone to designe a pcb ?

Hello, I’m working on a project using the ADXL382 from Analog Devices. I used their evaluation board for some tests, but I......

1 Reply Asked by 10*******8A