Cadence® system design and verification solutions, integrated under our Verification Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
More Support Log In
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technology. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
I want to put on the table one problem which we face somehow regularly. Each time when we receive the leadframes for the packages which our custmers want to use they are in PDF format, but we need them in GDS in order to create the bonding diagram which is sent to the assembly house. So after that we are using multiple tools and stunts in order to do the convertion, but the approach is not professional at all.
My question is there way ( cadence tool or skill script ) to convert PDF to some cadence readable format, in order to be opend as a lyout view?
To my knowledge there is not something to convert directly from PDF to GDSII, however, you can search for a converter from PDF image to XPM. Andrew wrote an XPM importing script to create a layout. Once you have the layout you can create a GDS file. You might not find a way to go directly from PDF to XPM, you might need to go via another format (e.g. I saw a PDF to TIFF converter).
I hope this helps, and good luck!
In reply to skillUser:
My first thought was Artwork Conversion Software - but I don't believe they have anything that goes from PDF to Stream format (aka GDSII). That said, I did find a few companies that provide a PDF to DXF (an AutoCad format) converters - just do a google search for "Convert PDF to DXF". And Artwork provide a tool to convert DXF to GDSII (I think you can also do it with the Allegro PCB/Packaging tools too).
How successful this flow is remains to be seen. You are probably better off requesting the lead frame in a drawing format directly from the package provider, rather than trying to reverse engineer it from a PDF. Almost certainly they will have it in a form used in a CAD tool - either something like AutoCad, or even Allegro Package Designer.
In reply to Andrew Beckett:
Hello skillUser, Andrew,
Thanks for both responses. I almost succeeded to do the task.
In order to convert PDF to XPM I used following:
pdf2ps aa.pdf bb.ps
gs -q -sDEVICE=ppm -dNOPAUSE -sOutputFile="|ppmtoxpm>cc.xpm" bb.ps -c quit
But then the problems came. The script which you mentioned: abXpmToLayout.ils is too outdated and some of the buttons on the GUI created by it, do not work. I found on sourcelink newer version of same script called: CCSxpmToLayout.ils. The GUI which is created when main fucntion is called is OK, but when the actual importing of XPM file to layout starts, it never finishes. In the end I have to kill cadence itself, because it consumes almost all of the CPU power of the server.
In reply to tyanata:
How many pixels does the resulting xpm file have? Did you try taking a look at it in (say) gimp? The code I wrote for importing XPM files is really intended for small images (with small number of colours) not for high resolution images - because it has to draw a square for each pixel - and if you have an enormous number of pixels, that will be very slow and take a long time...
The XPM file size is 4958x7017 pixels.
Could be that it is too big.
That's way beyond what the code was intended for. That's about 35 million rectangles if you convert every pixel - then these rectangles will get merged - which is also a lot of work. The code could potentially be smarter about merging adjacent rectangles, but it doesn't do that.
The code was intended to import small logos - nothing more than that.
I did some thing different opened the PDF file in GIMP and then converted it to XPM which was much smaller as size.
Then this XPM was successfully imported in the layout using your script.
But anyway the final layout picture looked pretty ugly ( wires to bondpads looked like rows of squares for example ).
So I will try to find another decision, convert PDF to some vector ascii format and then to extract data.
In fact we did some thing similar. Converted PDF to PS and then opened PS file in text editor, and just manually taken the sizes of the lines. And using this number pairs to create lines in layout, we succeeded to do that in one old Layout tool called ( ICED ) but now I will try to automate that for Cadence.