PCB - JLCPCB Q&A

Aluminium Stackup Values

Hello, I am working on a LED project which is locate on an aluminium plate. I couldn't find the layer stack values for Alt......

1 Reply Asked by 80*******2A

Gerber file requirements

Hello, I exported the gerber files from my EM solver. It is an RF design. It seems there is a problem with it. I can not s......

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

edge cut bugs

hello have you encountered a bug like this: it seems to me like every layer has become an edge cut ive had files that have......

1 Reply Asked by 68*******2A

Impedance Calculator, Coplanar or non-coplanar

Dear JLCPCB Engineer, Some of my PCB designs involve high-frequency signals and require traces with specific characteristi......

2 Replies Asked by 61*******7A

Placing Oval Slot Shaped Hole VS Drawing slot lines in Edge.Cuts layer

In KiCad 8, let's say I draw a square outline on the Edge.Cuts layer to define the shape of my PCB. If I want to create an......

1 Reply Asked by 77*******8A

silkscreen over pads and vias

Hello! Is it critical if silkscreen printing in gerber files lies on top of copper pads and vias? thanks for the answer!

1 Reply Asked by 79*******2A

delivery in angola

There are also deliveries in Angola and how can I make one in my country?

1 Reply Asked by 75*******7A

Via Hole size

Is the minimum via hole size/diameter the finished hole size or drill size, and after plating the finished hole size will ......

1 Reply Asked by 80*******3A

Through-hole connectors aluminum PCB

In an aluminum PCB, is it possible to use through-hole connectors to connect them to the copper layer, or would they short......

1 Reply Asked by 71*******4A

Coplanar and non-coplanar Impedance calculator

Dear JLCPCB, I am using your online Impedance calculator but still have some confusion: - My application involves a standa......

2 Replies Asked by 61*******7A

Panel by JLCPCB - Paste files

Hello, I would like to know if paste files of panels (Panel by JLCPCB) are sent by mail automatically after ordering ? If ......

1 Reply Asked by 31*******4E

minimum clearance via to via - different nets

hello, I see that the minimum clearance via to via (same nets) is 0.254 mm. And the minimum clearance between "holes" from......

1 Reply Asked by 55*******0A

Flex PCB soldering temperature

Hello, Could you please provide the maximum temperature that I can use in my reflow oven for soldering your flex PCBs? Tha......

1 Reply Asked by 74*******5A

change filename to jlcpcb

Hello. I want to place an order again, but the name was wrong last time. Please tell me how to change the file name when r......

1 Reply Asked by 51*******5A

Flex PCB Stiffener Capabilities

In a 2-layer Flex-PCB design, which stiffener combination can you produce? a) Side 1: Stiffener PI, Side 2: Stiffener PI b......

1 Reply Asked by 38*******4A

Glass Transition Temp, 2 layer Material

Hi Do you have a material spec for the double side (2 layer) laminate us use, I specifically want to know the Glass Transi......

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

Shipping Mark

The new shipping company I wish to do business with, says I should have a shipping mark on the package when delivered and ......

1 Reply Asked by 26*******8A

Minimum clearance between pad and cut-out

I need a PCB that has a 5mm square cut-out with pads as close to the cut-out edge as possible. What's the minimum clearanc......

PCB - JLC3DP Q&A