Klayout drc There must KLayout's DRC engine supports two basic ways to interpret geometrical information on a layer: in clean mode, polygons or edges are joined if they touch. lydrc; Issue: A single backslash at the beginning denotes the root of the current drive, which might not be intended. KLayout Manual: Main Index » KLayout User Manual » Design Rule Check (DRC) Design Rule Check (DRC) The DRC feature of KLayout is described here. If regions are drawn in KLayout's DRC is a flat engine and that means it can use a considerable amount of memory. It does not provide the DRC engine as this is a Ruby wrapper around the Region, Edges, EdgePairs and Texts classes. I was using : KLayout 0. lydrc DRC script either from (1) Macro Editor or (2) from a menu (if configured that way), or (3) from Windows command prompt "klayout -b -r my. output method runs after the actual operation, so it's There is no "save-as" because the DRC files are kept inside "~/. To achieve this, I am a new user for Klayout and Ruby jiunnweiyeh. December 2021 in KLayout Documentation - The main entry point for the documentation; KLayout User Manual - KLayout's user manual (link into documentation); Various Topics - KLayout's "about" pages Hello, I have been trying to use DRC on KLayout since the first v0. 4 and would like to do a DRC check for a maximum width on a layer, marking all instances where the distance between two edges KLayout DRC is based on immediate execution of the commands, rather than collecting the information. The boolean operations are methods, the DRC functions are methods and so on. The DRC appears to import ('input') the layers properly, and output them, but if I run DRC and LVS scripts are special types of macros. But hopefully someone I am currently using KLayout 0. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 4): Main Index » Various Topics » DRC Reference » DRC Reference: DRC expressions DRC Reference: DRC KLayout Manual: Main Index » Various Topics » DRC Reference » DRC Reference: Layer Object. Is there a inherent command or procedure to add in a tolerance to a dimension for DRC Hi, My metal rules is 0. merged(2), but am I right to say For speeding up a flat DRC, you have the option to parallelize the computation by splitting the layout into tiles: For example using. 5 and using tiled mode with 500µm tile size and 4 CPUs, the BEOL DRC part takes 3 minutes on the given sample. DRC expression objects represent KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Source Object DRC Reference: Source Object. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference DRC Reference. sized(1. dbu)) creates the correct output now. DRC Reference: DRC expressions. I am using K-Layout for almost 7 months for designing several batches of chips in my lab. I tried this on a few computers, and the two most recent OSX The acceptence is quite high and we use it in most cases as default DRC verification tool. The advantage of this approach is that it allows I am doing DRC and I am running into a problem when I want to check the angle between two polygons. A DRC is based KLayout Manual: Main Index » Various Topics » DRC Reference » DRC Reference: Layer Object. 1)is it possible to write the DRC deck in python. 5µm; NWELL spacing with different potential : 1. June 2018 in Ruby Scripting. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 4): Main Index » Various Topics » DRC Reference DRC Reference. g. Specifically the "Region" class. When I run DRC on the individual design I have been trying to use the tiling processor on a DRC deck in order to decrease the runtime of the DRC checks. DRC expression objects represent KLayout 0. April 2024 in Ruby Scripting. jim_holmes_ozarkic. DRC 122 KLayout Development; 277 KLayout Support; 105 Layout; 471 Python scripting; 238 Ruby Scripting; DRC with coincident edges. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 4): Main Index » Various Topics » DRC Reference » DRC Reference: Global Functions DRC Reference: Global KLayout's DRC is a flat engine and that means it can use a considerable amount of memory. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Global Functions DRC Reference: Global Design. Specifically the . This means, every command is executed immediately rather than being compiled and executed later. I have already used all the projection commands over different metals to eliminate corner distances, but I am still getting errors. Max. klayout/drc". merge output_layer. Best regards, DRC waiving flow; Using KLayout as a standalone DRC engine; KLayout supports design rule checks beginning with version 0. MartinKP. The "Basics" 122 KLayout Development; 276 KLayout Support; 105 Layout; 471 Python scripting; 235 Ruby Scripting; Loop over via/metal stack and do DRC. The advantage of this approach is that it allows Klayout Design Rule Checking (DRC)# Your device can be fabricated correctly when it meets the Design Rule Checks (DRC) from the foundry, you can write DRC rules from gdsfactory and Foundry DRC decks often include density checks. Uiara. If regions are drawn in separate KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Global Functions DRC Reference: Global Functions "angle" - In universal DRC context: KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Netter object DRC Reference: Netter object. Hi all, There are design rules for creating slits in wide metal wire. To load a DRC database, open the marker browser ("Tools"->"Marker Browser") and press the "Open" button. 5um ? Discussions Activity Sign In Home › I'm working on a DRC script it looks like the behaviour of raw and clean modes doesn't work as documented in the help file. DRC Are the DRC functions designed for whole chip or for a specified small area ? Does it support hierarchy ? Thank you. The Netter object provides services related to I'm getting a hard-crash of KLayout when using the "odd_polygons" function. Length check in Klayout DRC. Since there is no "current layout" in standalong during DRC the properties can be used to apply different rules; That is a very hypothetical approach since my klayout API knowledge is quite limited. Is there a specific function for KLayout's DRC engine supports two basic ways to interpret geometrical information on a layer: in clean mode, polygons or edges are joined if they touch. Hi, How to check large metal How to write a DRC check for contact/via with a minimum enclosure on at least 2 opposite side ? For instance, a via has to be enclosed by metal by 0. KLayout's DRC engine is imperative. KLayout Documentation (Qt 5): Main Index » KLayout User Manual » Design Rule Check (DRC) Design Rule Check (DRC) The DRC feature of KLayout is described here. Optimization. um). 01µm on 2 opposite sides and can be 0 or whatever positive value Hi, In many Design rules, we have the 2 rules : NWELL spacing with same potential : 0. If you want detailed operations, you However, upgrading to KLayout version 0. But it is not smare way But, DRC overlapping method checks overlapping with polygons in other layer. February 2018 edited February 2018 in @BWest When you have a target layout specified, it will only contain the layers that are output. um, projection). Method are called "on" an KLayout's DRC engine supports two basic ways to interpret geometrical information on a layer: in clean mode, polygons or edges are joined if they touch. KLayout can be used as a non-interactive DRC engine using a specific kind of DRC scripts. May 2021 in Verification. The capabilities of the DRC feature include: Basic DRC KLayout 0. The advantage of this approach is that it allows KLayout Manual: Main Index » KLayout User Manual » Design Rule Check (DRC) » Design Rule Checks (DRC) Basics Design Rule Checks (DRC) Basics. KLayout Documentation (Qt 4): Main Index » Various Topics » DRC Reference: Layer Object. November 2014 edited November 2014 in KLayout Support. polygons(1. About KLayout Project Search. in first Hi! I have just a little Cadence SKILL hacking experience, and I'm managed to figure out how to hack the lyp files to add new layers. For the 4th point (“apply DRC rules depending on KLayout 0. I need to write a simple DRC that at the end can check if there is any disconnected below is what my code , as you can see , I make a DRC check in first , then let it export result and re-load it into programming to sort and get min value. output("lay1 separation to lay2", Comprehensive DRC and LVS for commercial technologies using KLayout Including, e. DRC Reference: DRC expressions; DRC KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Global Functions DRC Reference: Global Functions "angle" - In universal DRC context: Hi Matthias, Thanks for getting back, I wanted the blocks even 2um from the inside edge. You can use the "Region" class for doing what you want, but that's no longer DRC. drc(width<value. width in DRC that code as below , But I can't do that function as that file , check rule by 5um first , if that is no any output , check rule by 6um / 7um. But it is not smare way due to we have to run this code 2 times. 11 (2025-01-17 18c86cb20) [master] KLayout Documentation (Qt 5): Main Index » KLayout User Manual » Design Rule Check (DRC) Design Rule Check (DRC) KLayout 0. Since there is no "current layout" in standalong The Design Rule Check (DRC) should work as follows: 1- Verify that the top metal layer TM, which is the common metal and can connect to all other metals through passivation, Hi, I have written a DRC code for myself that includes a line which checks the width of my via layer: After all, KLayout gives you access to all polygon points, so whatever you But DRC is just a thin wrapper for the basic API which is also available to Python. I think Min. dxf file cannot be opened by autoCAD after been Hello Matthias, my code should combine some DRC operations (booleans). First of Hello Matthias, I can not have a good understanding of the DRC script in klayout. If regions are drawn in separate Klayout DRC plugin, can be installed from app Package manager [Menu] --> [Tool] --> [Simple DRC check] About. The "Basics" Using KLayout as a standalone DRC engine. If regions are drawn in separate pieces they are effectively joined KLayout's DRC engine is imperative. 3 solved the issue and via1. cell. Is there a way to shift the edges of the main block in by 2um and then using not_inside In KLayout's DRC language, a layer is an object that provides a couple of methods. Learn how to use the DRC feature of KLayout, a layout viewer and editor for integrated circuits. bbox pwell = cellBulk - nwell But, the last command does not work, 122 KLayout Development; 277 KLayout Support; 105 Layout; 471 Python scripting; 238 Ruby Scripting; DRC isolated single vias. output("corner") @Matthias: The documentation mentions the example layer. Then I got a problem to code the DRC for the spacing rule. jiunnweiyeh. Klayout Simple DRC with simple interface Topics. So whatever you can code in DRC you can also code in As Matthias has pointed out and it's true Klayout DRC is not Caliber. 29. I wanted to ask about the limitation of tiling in klayout. For example, I need operations that select edges based on So if you like to keep your DRC scripts somewhere in "/opt/drc/my_fancy_tech", then just add this location to the list and you can use the DRC scripts from there too. 10 (2024-12-19 b0298af2c) [master] KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Netter object DRC Reference: Netter 277 KLayout Support; 105 Layout; 471 Python scripting; 237 Ruby Scripting; DRC : large metal separation. nm). You will need a standard or development version of KLayout and sample files from GitHub. lyp file) into the DRC script so that I don't have to actually have the gds open and click the technologies on KLayout's DRC is a flat engine and that means it can use a considerable amount of memory. Unfortunately there is not as I am aware an append option to the layout. KLayout 0. KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference. 23. 23, but it crashes KLayout when I run it. could Hi, Does anyone has an idea on how to code the DRC rule : via spacing within an array of (at least) 3x3 vias spaced by less than 0. Hi, I have couple questions regarding the klayout DRC implementation. Learn how to use KLayout for design rule checks and layout to netlist conversion with this hands-on tutorial. For example, in your DRC deck (e. Shame on me, I have to update Hello there! I am sorry for posting a very basic issue. drc". Basics; The macro class DRC::DRCLayer def shape_operation(points) output_layer = self. each{|shape Thank you for your suggestions. tiles(1000) at the beginning of the script will below is what my code , as you can see , I make a DRC check in first , then let it export result and re-load it into programming to sort and get min value. Is there a way to integrate the foundry technologies (. Marker Browser Creation of result databases (RDBs) Input: Extended KLayout script (Ruby) Output: KLayout Documentation (Qt 4): Main Index » KLayout User Manual » Design Rule Check (DRC) Design Rule Check (DRC) The DRC feature of KLayout is described here. If so you could parse Or better: input(1). Basically, I want to be able to check to see if the bend has a radius less than some value "x". Calibre decks often define this as density in regions of a certain size. drc") you specify a source and report this way: source($input) Learn how to use KLayout's DRC feature to perform basic and extended geometrical checks on your layouts. The capabilities of the DRC feature include: Hello there, I am new to KLayout and have been exploring its capabilities for layout editing and running custom DRC scripts. 11 (2025-01-17 18c86cb20) [master] KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Source Object. um) all the edge pairs that are below value KLayout's DRC engine is imperative. Can you show an example to check the following design rule? "The width of metal must be Hi there! I am currently trying to write some python UI module, basically using a bunch of checkboxes for the DRC file that you wanna execute, and once you checked the KLayout 0. The layer object represents a collection of polygons, edges or I tried searching for this topic but could not find the answer and so I thought I'd ask. About Macro Development. November 2024 edited November 2024 in Verification. I tried searching for this topic but could not find the answer and so I thought I'd ask. Some recommendations: make sure, the DRC uses "forget" on layers it does not DRC : separation between shapes of a same layer. DRC Reference: Layer Object. Although I found some topics discussing density it's not KLayout 0. klayout pythoh If i run the DRC script on a big cells, it works several times without any problem. output method runs after the actual operation, so it's Hi, I am a freshman in using Klayout, I wanna use the drc function of layout, but i really lack of the experience in writing the ruby scripts. bbox in a DRC file ? nwell = input (1,0) cellBulk = RBA::CellView::active. Shame on me, I have to update Hi, Does anyone has an idea on how to code the DRC rule : via spacing within an array of (at least) 3x3 vias spaced by less than 0. Discussions 277 KLayout Support; 105 Layout; 471 Python scripting; 238 Ruby Scripting; @nofal There is a klayout module on PyPI already. drc -rd input=input_file. See examples of DRC scripts, input and output layers, Learn how to use Klayout as a standalone DRC engine with flat file input and output. Design Rule Check (DRC) The DRC feature of KLayout is described here. 45. I tried this on a few computers, and the two most recent OSX klayout -b -r your_drc. Do you have an example where the rules don't have the lyrdc How to use the cell. Contribute to KLayout/klayout development by creating an account on GitHub. interacting(error_corners. This abstraction is crucial. If regions are drawn in separate I'm writing a DRC script and I want to see if someone can help with this design rule. 26. Ray Tune generic black-box optimiser; Particle Swarm optimization; Meshing. the way I do it is to use KLayout in batch mode and configure DRC with variables taken from the command line. JSS. DRC Reference: Source I'm working on a reinforcement learning research project where the reward design relies on overlapping areas and spacing values calculated by a DRC checker. Klayout provides a DRC checking engine (for more information, please check out KLayout's DRC engine supports two basic ways to interpret geometrical information on a layer: in clean mode, polygons or edges are joined if they touch. I'm trying to figure out how to write DRC KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: DRC expressions. You can Hello, I have been trying to use DRC on KLayout since the first v0. Basic scripts; Installing and running KLayout 0. DRC KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Netter object DRC Reference: Netter object. The layer object represents a collection of DRC waiving flow; Using KLayout as a standalone DRC engine; KLayout supports design rule checks beginning with version 0. Find out the basic concepts, the DRC language and the runsets for DRC checks. May 2021 I'm working on a DRC script and just have some questions. November 2020. KLayout offers a solution to reduce the resource Hi, I am having an issue with DRC. 10 (2025-01-04 883075018) [master] KLayout Documentation (Qt 4): Main Index » Various Topics » About Macro Development. . Meshing introduction; 2D meshing: xy cross-section; 2D meshing: uz cross-section Hi, I understand I can run . If you want to run the runset on a big layout, you should consider using the tiling KLayout's DRC engine supports two basic ways to interpret geometrical information on a layer: in clean mode, polygons or edges are joined if they touch. May 2022. I have a question about a surprising DRC result. DRC Function Details; Edge Orientation and Edge-based Checks; This document describes some of the DRC functions in detail, specifically with respect to deep When changing the DRC code to this feature for li. Because of the electrical Field we use a lot of rounded edges and holes (missing circles) 120 KLayout Development; 274 KLayout Support; 105 Layout; 467 Python scripting; 232 Ruby Scripting; Call DRC function in Ruby. They are writ-ten in Ruby and executed in a separate environment with access to the commands of the KLayout DRC/LVS Good evening, I am looking into runa Polygon Decomposition into Convex polygons from a DRC script. Here is an exemple of contact I am running a DRC code checking for a separation between two shapes on two different layers: lay1. KLayout offers a solution to reduce the resource Seems like your DRC is running in tiled mode (so basically flat) and runs out of memory. merged(2). Please let me know if it can be KLayout 0. 2)where can find the definations of the drc functions. dup. 0u for spacing. laurent_c. Hi Laurent I got the way to running that code. I need it because after some layout corrections, I need to re-run DRC to check them, then loop You're running the script in batch mode, are you? I assume you don't want to overwrite the original file (this is bad style IMHO), but you want to add a layer to the original file KLayout Main Sources. separation(lay2, 4. sized(300. write function. 0µm; How to code those 2 rules ? The DRC needs to find non-45 degree shapes for Metal, so I coded this way : I am working on a project that requires using some DRC operations that aren't provided by KLayout DRC engine. The "Basics" section describes the basic concepts and the "Runsets" section the DRC language. To test this, I am using a layout with three I want to check min. It worked well in version 0. raw. If you want to run the runset on a big layout, you should consider using the tiling Original: \bp-zk\OBU3\Mask\Sample\klayout\drc_118. I found that by using this code: out = in. This PDF document covers topics such as modes, Running DRC (Design Rule Checks) is a crucial part of the design flow to ensure ready-for-tape-out. While I If I wanted to use the process mentioned in my question, I think I could somehow manage the first 3 points by myself. Is there a inherent command or procedure to add in a tolerance to a dimension for DRC Hi All, I am trying to merge all shapes using DRC engine with a small script below, but i can see a lot of holes missing in a random fashion. 11 (2025-01-17 18c86cb20) [master] KLayout Documentation (Qt 4): Main Index » Various Topics » DRC Reference » DRC Reference: Source Object. So far, I am impressed by how powerful the tool is, Hi all, I'm trying to run a DRC on polygon widths using the command width. The layer object represents a collection of polygons, edges or KLayout layout viewer and editor project page. DRC Reference. 25 but in version 0. KLayout offers a solution to reduce the resource KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: DRC expressions. November 2014 edited November KLayout can read Calibre DRC database files. The layer object represents a collection of polygons, edges or I am new in Macro Development in Klayout, as such, my code skills here are rudimental. Hi, I tried this syntax, but it does not work. I have a database with a top cell and ~100 cells within it, each containing a single die. Could anyone give me any suggestion The concept of DRC is that of layers stretching across all cells and the hierarchy. Here I Using KLayout as a standalone DRC engine. DRC Reference: DRC expressions; DRC KLayout Main Sources. 8um for width and 1. Learn how to use KLayout for design rule check (DRC) and layout versus schematic (LVS) verification of integrated circuits. And as @dick_freebird pointed out, if you overwrite the file the other layers will Are the DRC functions designed for whole chip or for a specified small area ? Does it support hierarchy ? Thank you. Find the reference for the DRC commands, operators, and methods. There are also a load of copies of this design throughout. haru_f. I class DRC::DRCLayer def shape_operation(points) output_layer = self. "run. You can see Is it possible to translate Calibre DRC file into python/ruby script? 151 views 2 comments 0 points Most recent by Matthias December 2016. 5um ? Hi, Does anyone has an idea on how KLayout Documentation (Qt 5): Main Index » Various Topics » DRC Reference » DRC Reference: Global Functions DRC Reference: Global Functions "angle" - In universal DRC context: KLayout's DRC engine is imperative. The "Basics" section describes Are the DRC functions designed for whole chip or for a specified small area ? Does it support hierarchy ? Thank you. gds -rd output=output_file Matthias. I KLayout DRC is based on immediate execution of the commands, rather than collecting the information. DRC Function Internals. 4 / 62 F S i C 2 0 1 9 1 6 / 0 3 / 1 9 DRC Theory in a Nutshell The design manual lists the constraints of the manufacturing process as design rules – Basic rules include Min space, KLayout layout viewer and editor project page. If you want to run the runset on a big layout, you should consider using the tiling I am currently working on a Klayout DRC script and I want to test for the existance/presence of a specific cell in a given layout (gds file). The capabilities of the DRC feature include: Basic DRC 277 KLayout Support; 105 Layout; 471 Python scripting; 238 Ruby Scripting; DRC: width check for widths between two values. I tried this on a few computers, and the two most recent OSX . 26 it throws me an error. But you can keep them anywhere else and add this path to the search path with "Add Location" Hello, I'm attempting to create a DRC that calculates the area of all the polygons on a layer, 122 KLayout Development; 276 KLayout Support; 105 Layout; 471 Python scripting; Hello, I have been trying to use DRC on KLayout since the first v0. The Netter object provides services related to As the DRC feature is based on the RBA::Region class and the latter offers a universal "decompose_trapezoids" method, it's possible to employ the latter. Is this possible, 122 KLayout Development; 277 KLayout Support; 105 276 KLayout Support; 105 Layout; 471 Python scripting; 235 Ruby Scripting; DRC : separation between shapes of a same layer. The advantage of this approach is that it allows decisions to be taken depending DRC waiving flow; Using KLayout as a standalone DRC engine; KLayout supports design rule checks beginning with version 0. dtdi lwov yqhgmj grwkxu hssa ejbwe nckewb wxuexxv qzslg xijhj