Questions tagged [silkscreen]

The silkscreen on a PCB is the printed layer on top that often shows component values or designators along with outlines to assist in hand assembly. On mass-produced boards they are also common to highlight test points and the designation of external connections.

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65 views

Does silkscreen help with voltage creepage distance?

I have seen on various mains powersupply PCBs that they have a lot of silkscreen lines near the high voltage areas. So my question is that does the silkscreen helps rise the voltage rating of that ...
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4k views

Why is the PCB part number traditionally on a copper layer?

I'm an experienced board designer, having designed 100+ boards over the past decade, and I have yet to hear a good answer for why the PCB part number is traditionally on an external copper layer, and ...
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53 views

How to remove excess top silk in Proteus?

I have some markings on my plate made in silk and I believe they can hinder the welding, since a line is passing inside my pads, I know that when a silk line passes over the track there are no ...
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2answers
81 views

Minimal distance between silkscreen text and edge?

I'm maybe going to use JLCPCB to order a PCB (if I get it finished), but I'm wondering about the minimal distance between the edge and silk screen text. If I look at the capabilities: https://...
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How to draw xh 2pin connector on pcb silkscreen

I want to now how to draw the xh-2pin male pinheader connector on the pcb silkscreen How to refer to the open window wall side? Thanks in advance.
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1answer
64 views

Transparent Screen Selection

We are as a team with four members intending to design an augmented reality oriented smart glass which shall contain a CMOS camera, wireless communication and transparent screen. The algorithm below ...
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1answer
89 views

What is the difference between courtyard top and top overlay?

I am creating my first assembly drawing and have noticed that my ECAD tool generates a footprint with a top/bottom overlay and courtyard top/bottom. Top Overlay is the silkscreen, but what is the ...
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8k views

Why do some PCBs have the courtyard in the silkscreen layer?

I've seen quite a lot of PCBs which have the passive components outlined all the way in their silkscreen. Something like this: Here there is an outline around each passive which goes (almost) all ...
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131 views

Why are there no nichrome resistor pastes?

Nichrome wire is commonly used for wire coil heating elements. Other heating elements are formed by screen printing a pattern of "resistor paste" onto a dielectric coated substrate. These pastes are ...
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3answers
566 views

Does a silkscreen text or line over pads/mounting holes give problems?

I'm intending to create a PCB and let it manufactured (just a few, for a hobby project). I added some text on the silkscreen layer very close to mounting holes/holes for pins/vias. Also I used lines ...
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1answer
89 views

Altium Trace, Silkscreen not solid ie only showing outline

Whilst working with Room Copy key command (D-M-C) I have inadvertently changed something which has resulted in my traces and overlays showing as their outline only. Does anyone know what I've done to ...
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328 views

Are these (dis)assembly screw symbols standardised?

Sometimes there are these two half-arrow symbols on PCBs and on enclosures. See the images, for examples. Those symbols are often placed near the screws, that are to be unscrewed upon disassembly. ...
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42 views

Correct use of Silkscreen Layer and Documentation Layer

I'm looking to understand how correctly design my board silkscreen. I usually used to draw silkscreen of exact size of my package, especially for SMD parts, to easly know their dimentions and allow me ...
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Minimum Silkscreen Designator Size

I'm working on a fairly dense PCB at the moment and I'm having trouble fitting in all the component labels. What is the minimum readable standard size for component designators on the silkscreen? ...
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135 views

Female symbol on PCB silkscreen?

You can see the symbol on the upper right hand side of the board, what appears to be a pictogram of a woman wearing a dress, similar to a bathroom sign (?) Wondering what this is.
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1answer
665 views

Can Silkscreen Go Directly Onto Copper PCB Layer? (No SolderMask)

Hi I am wondering if a PCB silkscreen layer can be printed directly onto a copper layer without a solder mask. I don't see this often but I have a design for which this would be useful. Has anyone ...
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147 views

Reversed silk screening on EasyEDA

Just a quick one. I'm not sure if the text should be mirrored on the bottom layer of EasyEDA. It seems okay in the 3D preview, but when I upload the gerber to JLC their preview shows it still reversed....
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silkscreen artifacts on pcb

I often see silkscreen prints between pads on pcbs. Especially I noticed this on "high voltage" designs (SMPS). What is the reason for that? Maybe it is to improve automatic inspection prevent for ...
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2answers
816 views

How to print value of variable on PCB into String feature in Altium Designer?

I'd like to print value of Revision variable that can be set in Project Options - Parameters (not Document Options on Parameters tab) into silkscreen of PCB. How could I do this?
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5k views

Acceptable Silk to Solder Mask Clearence

I am running DRC in Altium Designer and Im getting tons of "Silk to Solder Mask Clearence" Errors. I searched for acceptable values, but without luck. Altium is set to 10mil. I have most values around ...
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567 views

Altium silk screen carried over into copper layer

My PCB vendor informed me today that a silk screen feature that is carried over into the copper layers, lands on traces and causes shorts (yellow box on the right). The yellow box is a connector and ...
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1answer
2k views

How to specify what is printed to silkscreen layer in Eagle? [closed]

I am finishing up a PCB design for the first time in Eagle, and I need to know how to print the component names onto the silkscreen layer, how to I set the layers up so the right things are printed?
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147 views

How to get text in svg2poly for Eagle?

I'm working with Eagle 7.7.0 and trying to import SVG files using svg2poly to put a logo on the silkscreen. To aid in the process, I've downloaded the current version of Inkscape, which is 0.92. I'm ...
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1980's Transistor ID & Silkscreen (German Automotive)

From the circuit board of a 1985 Volkswagen engine control unit... I can't find the device itself based on the markings. Does the silkscreen help?
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Which “silkscreen” process for home-made PCB prototypes?

For hobby and learning purposes, I do some PCBs at home, using photo-resist positive development (mainly just single/double layer). Obviously, I realized that most professional PCBs have silkscreen ...
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3answers
2k views

Two different silkscreen colours on the same PCB

Has someone seen or used two different silkscreen colours in the same PCB? If so, can you describe the use of them or how the manufacturing process was? Just thinking about improving the aesthetic of ...
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1answer
764 views

Acrylic vs. Epoxy Silkscreen?

I have been doing hardware design for years but never really cared which process was used for the silkscreen. Now I have a manufacturer asking for a blanket approval to use acrylic silkscreen on all ...
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1answer
254 views

Altium Arrow To Designator

I am just wondering what the convention is for putting designators for tightly packed areas. It is best just to put arrows to the designators, make the designator smaller and put it inside the ...
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1answer
317 views

Symbol on silk screen of design

This is the circuit diagram I used to make my line follower robot. I don't understand the symbol at the right side down corner, the one that is a circle with 3 dots inside. As this is my first PCB ...
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2answers
8k views

Altium hide component designators in fabrication ourput gerber

As the title says, is there a way to hide the component designators in the fabrication ourput in Altium AD15? I have a very tight board with 0402 parts very close, so there is no room for the ...
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1k views

What is the typical PCB fabrication process in a professional PCB house?

I have been etching my own boards as part of my hobby interest into electronics, and I can't help but wonder how exactly is the typical printed circuit board manufactured? Unfortunately, details on ...
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4k views

Silkscreen versus assembly layer

Is there any example, preferably by photos, how does assembly layer on PCB differ from the silkscreen? I understand, that silkscreen reference designators should be left visible after the parts are ...
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3answers
7k views

Move silkscreen text from component on EAGLE CAD

How can I move a silk text from a component? I cant use the button move to the text and when I click smash nothing happend. I need to move the number 8 inside the board Edit1 I try to smash but ...
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1answer
620 views

Should courtyard information be included in gerber files for manufacture?

I just used 4pcb's free DFM checker and it doesn't like the fact that the courtyard line widths on my board are 1.968mils (what Altium generated in the IPC component wizard). It's also complaining ...
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1k views

How to remove silk screen from PCB?

Last batch of PBCs I got from a manufacturer had some silk screen splashes (dots) all over the board ruining the design. I don't have and don't want to have any silk screen on the board. The whole ...
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1answer
647 views

Altium place string (letter with macron)

I am looking for a way to place a macron in top of a letter on the silk screen. in Altium i have only 3 fonts to chose from default??, Sans Serif and Serif non of them supports macron for capital ...
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2answers
669 views

Altium silkscreen art

I'm trying to design a logo in silkscreen in Altium without importing an image. I find that when I import a design it is made up of a huge number of primitives making it very difficult to work with. ...
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499 views

Silkscreen covering pads

Im prepparing my 1st pcb for manufacturing, and before i generate the gerbers i wanted to ask some things here fist, What happens when i put a silk screen like this? a logo big enough to cover the ...
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1answer
1k views

Solder Masking Ink

I am trying to make a complete PCB with solder masking and silk screening, for creating a small PCB fabrication house of my own later. I choose the process of screen printing for fabricating my pcb, ...
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1answer
4k views

Altium, it is possible to mirror the silk screen?

I am trying to build a simple PCB at home. It is a single layer PCB, and I would like to transfer the silk screen on the back side, mirrored. But for that, I need to mirror text, etc. To design the ...
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1answer
2k views

Kicad: Switching front Silk for Back Silk

I'm making a circuit using kicad and I want to add the silkscreen to it. It is a 1-layer board that I created using the front copper layer (red) of Pcbnew. The problem is that now the silkscreen doesn'...
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1answer
2k views

Typical minimum silkscreen-pad spacing

What is a typical industry figure for the minimum spacing between silkscreen and pads? When I look at a manufacturer's general list of capabilities, sometimes this number isn't even listed. I haven't ...
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7k views

Can a permanent marker be used on a PCB without damaging it?

I need to cover up a line of text on the silkscreen of some PCBs and I'm not sure of the best way to do it. I've read that removing the printed text with a chemical will likely damage the boards, so ...
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2answers
2k views

Kicad - Module refernces are being rendered, but don't show up on gerber plots

I am working on an open source design. I can view all the layers in PCBNew. The module references show up on the screen. They are visible even when I deselect Front Silk Screen (F.SilkS) in the layers ...
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1answer
134 views

Simplest device for mini operating system

I have been developing an operating system off of this video and I want to begin building a device to support this os. All it really does is print to the screen. I want to build a small device with an ...
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1answer
11k views

Why is “silkscreen” called that way?

Why is the set of white labels on a PCB called the "silkscreen"?
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3k views

No silkscreen on board? How common is that? What are the advantages?

I'm a young engineer and I just started at my second job. I was surprised to see that the PCBs have no silkscreen. I'm currently working on the redesign of a PCB currently on the field and I'm ...
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2answers
5k views

Silkscreen labels for components - what could Y?? be?

Components on PCBs are usually labelled using silkscreen markings and most of the markings seem to be quite intuitive: C?? - capacitor D?? - diode FB?? - ferrite bead J?? - jumper wire L?? - inductor ...