Questions tagged [altium]

Altium is integrated schematic capture, PCB design and FPGA software.

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26 views

How to fill a polygon generated by importing a .dxf file to Altium?

I am trying to import a .dxf file to Altium. I was able to import the file, but I could not fill it up with copper trace completely. I tried to draw a polygon to cover it and use 'Explode polygon to ...
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13 views

Celestial Altium Library does not show symbols or footprints

I tried to install the Celestial Altium Library a few days ago. I was hoping for a large library of components that could allow me to quickly build some prototypes from time to time. This is in Altium ...
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40 views

How to keep stiching vias away from text?

To keep automatically stiched vias away ( >=200µm) from tracks, pads, texts on top solder mask and polygon cutout regions on multi-layer, I tried to use a custom query in a seperat clearance rule: ...
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1answer
60 views

how to design step groove pcb in altium designer

I need to design a multilayer pcb in altium designer that has cutout just in one layer. I was seeking that and I found out that in china it is called 阶梯槽. I translated to English but I didn't find any ...
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14 views

Altium Designer & Dephi script - how to open HTML file created before

I'm writing some small Delphi script for Altium Designer that create an HTML report based on the PCB file. Which API command should I use to open the HTML file created before from that script? For now,...
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22 views

Is it possible to mirror the Net label in Altium 20.1.12?

The x and y hotkeys work for other components, but not the net label, which according to the 17.1 and 20.2 official website guide should work. I've also gone into the properties tab of the net label, ...
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2answers
55 views

Decoupling capacitors with power pour on top layer of 2-layer board

This question has been asked before but there are too many conflicting opinions. For a 2-layer board with a 3V3 polygon pour on the top layer and a GND polygon pour on the bottom layer, how should ...
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1answer
36 views

Greyed out vias in altium

Hello and thanks beforehand. I have this document in altium that has some weird issue with some vias. As you can see in this photo, some vias are like greyed out on the grey part, and they are not ...
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23 views

Convert/Import old Multi-board Assembly

I am using Altium v20.2.4 and i have a Multi-board Assembly project from Altium v18. I am trying to open this document (*.MbaDoc). As it is for an older Altium version i get the info to convert it for ...
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1answer
82 views

Boost converter PCB layout

I am working on the hardware of a boost converter which I will cascade with a buck converter. I will just pose a question on my boost converter since I assume the same knowledge can be applied to my ...
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39 views

Pads acting as heat sink for LED design

I am using traces much wider than the LED footprint to dissipate heat. What design guidelines should I follow when making design like this. Should I add solder mask expansion between anode and ...
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2answers
99 views

Is there a way to flip a component while preserving wire locations (in Altium)?

I have placed a header component. I started wiring it, but now I realized that the component should by flipped in the y-direction. If I started at the beginning, it could use the shortcut 'y' to flip/...
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1answer
53 views

How to merge polygons into a single pad?

I need to create a pad in a PCB footprint, This pad is created using these 3 polygons but I dont know how to merge them together into one pad. I am using Altium 17. edit Thanks to Chris's comment,It ...
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20 views

How to make ONLY a stripline (no parts) on a multi-layer board using Altium

I'm a beginner at PCB design and Altium. I'm trying to make a 50 ohm stripline using two ground planes, two dielectrics and one signal layer sandwiched between them. There are no other components on ...
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1answer
32 views

Altium supplier search: components with cut and tape packaging are never shown?

When I enter the manufacturing code for different components, I seem to only get options for tape and reel packing, but not cut and tape packaging. Is it possible that there is a setting that prevents ...
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39 views

Altium BGA fanout problem

I have a problem with Altium fanout. I can not use fanout with my BGA processor (AM335x,) but fanout is working on DDR3 and eMMC. I did the same things with DDR3 and the processor but fanout for the ...
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2answers
53 views

Altium Convert .PrjPcb to .PrjMbd - Single Board to Multiple Board?

I started my project single PCB board. But now, I need multiple boards for this project. How can I convert my file format? How can I convert my Schematic Diagrams for multiple board project? How can I ...
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1answer
24 views

Altium Library Issues- Replace uknown schematic library with know library

I am using Altium 20.1 and my question is regarding the sch library. I generated a schematic library and I want to use that as my default library for the components. When I try to update the schematic ...
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17 views

How to change a component value on hierarchical structure in altium

I designed a Hierarchical structure in Altium. I need a component value becomes different from other sheets. However, by changing the value all other sheets get the same value. As you can see by ...
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1answer
32 views

Altium Designer - Net has only one pin | Pin out of grid | Floating Label | Diferential Pair

I would like to ask a few questions about designing PCB boards on Altium Designer. I am currently designing a STM32 board, but having a few issues with the schematic design. Upon reading some post ...
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2answers
108 views

Altium PCB messy Components Placement

I have a problem with PCB. When I click Design -> Update PCB Document my components are passed to PCB in a messy way. I couldn't solve this problem. Is there any way to solve this?
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22 views

Exporting ODB++ directory from Altium to CST Microwave studio

I am trying to export a PCB that I created in altium using ODB++ format to CST Microwave studio 2017 , I clicked import and then chose ODB+ and browsed to the zipped file of the ODB++ but it's giving ...
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14 views

How to automatically show component values in Altium (Manufacturer Part Search)?

I just noticed that Altium 20 is free for students (yay). I'm trying to get used to it again, i was using Altium 17 during an internship for quite some time - with an already very big and well ...
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23 views

Altium Polygon Pour gap - minimum feature clearance rule?

Didn't find anyone covering this. On this image I'm showing a GND Polygon pour artifact that I cannot seem Altium to detect that gap is too narrow. Polygons are: Remove Islands less than 0.2 sq.mms ...
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1answer
54 views

How to batch update package delays in Altium Designer?

Altium Designer lets me specify a package pin length and a propagation delay for each pad of a component. However, I don't know a way to do this besides manually selecting each pad and typing in the ...
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31 views

Altium room moving objects from another layer

I have found a few other questions with the exact same problem but without answer, and i need to make sense of it because i cannot fathom how stupid it is for a supossedly professional program as ...
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15 views

Using cam350 to find errors of a PCB file

I want to find errors of a PCB file (like disconnection between tracks and pads, etc) which I have created in Altium designer software. I use Cam350 software for this purpose. When I run Cam350 I face ...
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47 views

Polygon pour in polygon cutout?

I'm designing a 4 layer board in Altium Designer 20.0.1 with an STM32F103RBT6 and am doing the 8MHz and 32kHz crystal layouts. According to the recommended layout each crystal is supposed to have a ...
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2answers
91 views

High frequency PCB layout

I am designing a printed circuit board with Sigfox IC ATA8520 from Microchip. The max frequency I have worked with is 20 MHz for PIC microcontrollers. I have been searching for design considerations ...
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19 views

Import changes from selected schematics not all in Altium

At the start please note that I'm new in Altium. I'm having 7 schematics and 2 pcb documents. For first document I want to import changes only from 1,2 and 3 schematics, but if i go to `Design->Import ...
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1answer
55 views

Text With White Background

I am designing a PCB and would like to have a white board with clear text in the middle like this: I have looked up altium text options online and I believe this is the "boarder option", ...
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53 views

Why is this projection in a draftsman document incomplete?

I am working on generating a draftsman document. 3 components have a line going through them, as shown below, as if the footprint outline is incomplete. The draftsman document is using the ...
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0answers
54 views

Trying to seal light from LEDs on PCB

I have a PCB I'm currently working on in Altium where the only thing on the bottom are some LEDs that I'd like to mount through a cutout on a sheet of plastic, with all of the other components on the ...
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2answers
39 views

Importing Altium schematics to a PCB is placing some components on a forbidden and an unaccessible area

I was using Altium 16 and generating PCB from schematics with no room generation. I have created my components library by mostly using "ultra librarian" files. I do these steps as many other ...
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260 views

Gerbers to PCB conversion - Altium

I am new to Altium. I am trying convert gerber files in to PCB. I am getting following error while trying to extract net-list. It is asking me to compress or redefine layers. I dont know how to do ...
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2answers
31 views

How to select a single component in Altium Designer using the PCB filter?

Using the PCB Filter, how can I select a single component easily (not its primivites)? Every now and then I have a complex component (such as an on-board PCB antenna which consists of copper traces, ...
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1answer
68 views

How to solve this error for PCB Design in Altium Designer?

I am new to PCB designing and Started with Altium Designer for PCB Design. I have created the Schematic doc for Arduino Nano with all its components having their schematic and Footprints in the ...
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1answer
53 views

BLE beacon 2.4GHz PCB antenna layout for SoC Nordic nRF52832

Schematic, suggested by the datasheet: PCB is round with 33mm, FR4 1.6mm Bottom side Top side Bottom+top 3d view The antenna drawings is based on AN043 of Texas, HERE. How about the question on ...
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0answers
32 views

Altium Designer PCB editor text too small

I have this annoying issue with Altium where the text of the net names on pads, vias and tracks in the PCB editor (and in pcblibs) is way too small. I looked all over the defaults, tried resetting ...
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35 views

Why Altium AC simulation lacks of the math functions available in other analyses?

In Altium Designer, Mixed Sim simulation, AC analysis, the plots can be modified adding arbitrary combination of waveforms, but for some reason, the Edit Waveform dialog lacks of the mathematical ...
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1answer
93 views

Altium won't let me move object to negative coordinates

I have imported a BRD document from Orcad to Altium. The origin is on the top left of the board and I can't move things or draw traces below or to the left of the origin, that is, negative coordinate ...
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0answers
19 views

How to put all components in schematic sub-sheets in higher level sheet room in Altium Designer?

How to put all components in schematic sub-sheets in higher level sheet room in Altium Designer? I want a few channels of my mulit-channel design to go into the same room to ease parts placement and ...
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2answers
129 views

What is this checkered pattern in altium when placing tracks?

I'm learning altium and trying to re-route an existing board that I have not that much experience with I've found this checkered pattern in some tracks that Altium is being very annoying at: They ...
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2answers
102 views

how many layers of pcb i need to draw? [closed]

I’ve just graduated from the electrical engineering faculty. So as I researched, most of the companies required PCB design in Altium/eagle or equivalent...but there is a question in my mind is, how ...
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0answers
24 views

Altium: Filenames with sheet numbers

I have seen some examples of schematics with page numbers in the filenames of the sheets. e.g. [01] sheetNameforSheet1.schdoc Do does one do it, manually or is there more elegant way of doing it? How ...
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1answer
51 views

Altium 20 autoroute via polygon

I wonder how can I make Altium autorouter to place a short track and then use via to connect SMD IC pads on one side to a polygon on another side? Should I define any rules? Should I change any ...
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0answers
45 views

Altium Designer: file could not be found and will be removed from the project

I downloaded a repository (from GitHub) of Altium files, and I am wanting to modify the PCB before sending it for manufacturing. However, I get the error: file could not be found and will be removed ...
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1answer
85 views

Altium Designer : How to make a custom Top paste for D2PAK pad

I know my way around altium designer but i am not finding a good way to make openings in the solder paste layer for the tab pad of D2pak . This is what i want : Altium only allows me to make the ...
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0answers
16 views

altium : can I customize a comporent reference depending on the sub-sheet?

In my project, I have a sheet that is re-used several times. Imagine, it's a motor driver. The sheet includes the driver and the connector to the motor. This sheet is used several times as a "sub-...
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82 views

Altium Simulation Reference Ground

I have a question about Flyback converter simulation on Altium. I set my reference ground GND. When I try this schematic with all grounds as GND like below Simulation is working good as you can see ...

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