Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13).
So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
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Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
wafer.space bare dies and CoB have arrived! 🎉
These are from my open-source FABulous FPGA, which was part of the first shuttle run.
It's a small FPGA with 480x LC, 6x MAC, 12x register files and 6x SRAM. The source files are available in the repository: https://github.com/mole99/gf180mcu-fabulous-fpga
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Greyhound is alive! 🐶
Last week, I posted about soldering my custom chips onto breakout boards. Now, I can finally say that Greyhound is working 🎉
If the video below doesn't work, you can also view it on Peertube: https://makertube.net/w/3rQ8a7WxTYcr1BQY9nCUat
I'm incredibly happy that Greyhound is no longer just theoretical, but that it can run examples on its FPGA in the real world 🤩
Greyhound repository: https://github.com/mole99/greyhound-ihp
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
First time soldering my own chip! 👏
It's also the first time I've used a stencil.
The chip is my Greyhound v1 (http://github.com/mole99/greyhound-ihp), designed for the IHP SG13 process family.
Read on for the full thread ⬇️
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
And another chip submitted for tapeout - HeiChips 🎉
This one has been in the works for some time, but since the shuttle was canceled last fall, it was postponed to a later one.
It's an open-source chip featuring user projects created by participants of the HeiChips Summer School 2025 (https://heichips.github.io/). How cool is that?
The chip uses 9mm² of silicon on SG13CMOS and has been submitted to IHP's Low-Cost MPW shuttle (https://dk.ihp-microelectronics.com/OpenSourceRequest.php).
More below ⬇️
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
LibreLane 3.0 has officially been released! 🎉
With this release, LibreLane finally has a logo! What's more, we now have a website showcasing LibreLane's capabilities, as well as a blog featuring development updates and announcements.
Read the full blog post here: http://www.librelane.org/blog/2026-03-25-website_release_3-0
LibreLane website: https://librelane.org/
Install LibreLane today: http://docs.librelane.org/
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
A Tiny FABulous FPGA on Tiny Tapeout? It's more likely than you think!
Yesterday the TTIHP26a shuttle (https://app.tinytapeout.com/shuttles/ttihp26a) from #TinyTapeout has closed. In it, hundreds of incredible projects.
You can view the full shuttle and its designs here: https://app.tinytapeout.com/projects/3744
I had the opportunity to submit an FPGA, which I created using my FABulous LibreLane plugin. For this fabric, I developed a "tiny" tile library that better fits the constraints of Tiny Tapeout.
Hi! I'm Leo, an open-source silicon advocate. This means that I'd like to advance chip design using open-source EDA tools and open-source PDKs. I am one of the maintainers of LibreLane and I regularly contribute to the three open-source PDKs (sky130, gf180mcu and ihp-sg13). So how did I get there? Well, I wanted to understand computers at the deepest level, and transistors are pretty much the bottom of it all as far as I'm concerned :)
Tiny Tapeout is hosting the first demoscene competition for ASICs! 🕹️
Get ready to compete with your own design and win a variety of prices, including whole wafers! Or you just do it for fun 😉️
The goal is to create a design that targets 2 tiles or less and uses the Tiny VGA Pmod to create nice visuals and the Audio Pmod to play some cool tunes!