@johndmcmaster.bsky.social
IC reverse engineering, #mtvre, CTO @LabsmoreLLC
https://siliconprawn.org
http://patreon.com/JohnDMcMaster
https://siliconprawn.org
http://patreon.com/JohnDMcMaster
Mountain View Reverse Engineering meetup (mtvre) tonight, 7:00 at Wagon Wheel BBQ. See you there!
Ford on "The Wildest Way to Distribute a C Compiler" (15 min) + maybe demo
Ford on "The Wildest Way to Distribute a C Compiler" (15 min) + maybe demo
November 13, 2025 at 12:53 AM
Mountain View Reverse Engineering meetup (mtvre) tonight, 7:00 at Wagon Wheel BBQ. See you there!
Ford on "The Wildest Way to Distribute a C Compiler" (15 min) + maybe demo
Ford on "The Wildest Way to Distribute a C Compiler" (15 min) + maybe demo
Mountain View Reverse Engineering meetup (mtvre) Wed Nov 12, 7:00 at Wagon Wheel BBQ. See you there!
October 31, 2025 at 7:06 PM
Mountain View Reverse Engineering meetup (mtvre) Wed Nov 12, 7:00 at Wagon Wheel BBQ. See you there!
Free stuff: quantity 4 of 60 kV pulse capacitors (3 kJ each, 160 lb each) and Rorze RR303L200 SCARA arm (slightly disassembled since picture but all parts should be there). Pick up in Santa Clara, DM if interested
October 10, 2025 at 5:02 PM
Free stuff: quantity 4 of 60 kV pulse capacitors (3 kJ each, 160 lb each) and Rorze RR303L200 SCARA arm (slightly disassembled since picture but all parts should be there). Pick up in Santa Clara, DM if interested
Mountain View Reverse Engineering (mtvre) meetup on Wed, 7:00 at Wagon Wheel BBQ. See you there!
October 5, 2025 at 6:53 PM
Mountain View Reverse Engineering (mtvre) meetup on Wed, 7:00 at Wagon Wheel BBQ. See you there!
I'll be on the Maker Faire "How to do Hard Stuff in Your Garage" panel at 3:30, Foundry Stage. Hope to see you there!
September 28, 2025 at 8:27 AM
I'll be on the Maker Faire "How to do Hard Stuff in Your Garage" panel at 3:30, Foundry Stage. Hope to see you there!
Mountain View Reverse Engineering (mtvre) meetup tonight 7 pm at Wagon Wheel BBQ! Talks:
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-@tubetime.bsky.social on "Raspberry Pi reverse engineering" (30 min)
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-@tubetime.bsky.social on "Raspberry Pi reverse engineering" (30 min)
September 10, 2025 at 9:21 PM
Mountain View Reverse Engineering (mtvre) meetup tonight 7 pm at Wagon Wheel BBQ! Talks:
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-@tubetime.bsky.social on "Raspberry Pi reverse engineering" (30 min)
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-@tubetime.bsky.social on "Raspberry Pi reverse engineering" (30 min)
Hey all! Its unfortunately time to find a new home for my SEM. if you are interested take a look at this doc. TLDR: asking $2,250 OBO, pick up in Santa Clara CA. Other than that its best offer / whoever makes it easiest for me to move it on
September 6, 2025 at 7:09 PM
Hey all! Its unfortunately time to find a new home for my SEM. if you are interested take a look at this doc. TLDR: asking $2,250 OBO, pick up in Santa Clara CA. Other than that its best offer / whoever makes it easiest for me to move it on
Mountain View Reverse Engineering (mtvre) meetup 7:00 this Wed at Wagon Wheel BBQ! Talks:
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-TubeTime on "Raspberry Pi reverse engineering" (30 min)
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-TubeTime on "Raspberry Pi reverse engineering" (30 min)
September 6, 2025 at 4:52 PM
Mountain View Reverse Engineering (mtvre) meetup 7:00 this Wed at Wagon Wheel BBQ! Talks:
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-TubeTime on "Raspberry Pi reverse engineering" (30 min)
-Jacob C on“Unlocking an Encrypted Zip” (30 min)
-TubeTime on "Raspberry Pi reverse engineering" (30 min)
Almost sold out of current Maasi spin coater inventory! Starting the next run to raise the current production from 14 to somewhere in the 20 to 24 range
August 27, 2025 at 9:06 PM
Almost sold out of current Maasi spin coater inventory! Starting the next run to raise the current production from 14 to somewhere in the 20 to 24 range
Mountain View Reverse Engineering (mtvre) meetup TONIGHT, 7:00 at Wagon Wheel BBQ. See you there!
August 13, 2025 at 8:24 PM
Mountain View Reverse Engineering (mtvre) meetup TONIGHT, 7:00 at Wagon Wheel BBQ. See you there!
Mountain View Reverse Engineering (mtvre) meetup this Wed, 7:00 at Wagon Wheel BBQ. See you then!
August 10, 2025 at 3:37 AM
Mountain View Reverse Engineering (mtvre) meetup this Wed, 7:00 at Wagon Wheel BBQ. See you then!
Successfully printed a Maasi spin coater "vase" (fluid bucket) in polypropylene! This will ease concerns more aggressive solvents / photo-resists will dissolve conventional print materials
August 9, 2025 at 2:51 AM
Successfully printed a Maasi spin coater "vase" (fluid bucket) in polypropylene! This will ease concerns more aggressive solvents / photo-resists will dissolve conventional print materials
Yep! I might also reproduce Hayden's (WIP) simple transistor. Trying to get this approved to add to the repo
August 8, 2025 at 11:53 PM
Yep! I might also reproduce Hayden's (WIP) simple transistor. Trying to get this approved to add to the repo
The making of these wafers
August 8, 2025 at 11:10 PM
The making of these wafers
Special thanks to the greater Ethereum community for providing seed funding for this project! Also thanks to Ethereum House and the robotics floor for hosting us this week at the tower
(also come find out how these gold wafers were patterned!)
(also come find out how these gold wafers were patterned!)
August 5, 2025 at 9:49 AM
Special thanks to the greater Ethereum community for providing seed funding for this project! Also thanks to Ethereum House and the robotics floor for hosting us this week at the tower
(also come find out how these gold wafers were patterned!)
(also come find out how these gold wafers were patterned!)
Want to learn about DIY / FOSS silicon fabrication? Check out FOSSF Silicon at Frontier Tower today to see an open source hardware toolchain! We'll be running live demos exposing and developing wafers
August 5, 2025 at 9:47 AM
Want to learn about DIY / FOSS silicon fabrication? Check out FOSSF Silicon at Frontier Tower today to see an open source hardware toolchain! We'll be running live demos exposing and developing wafers
Don't mind me, just grabbing coffee with my lithography machine
July 30, 2025 at 9:29 PM
Don't mind me, just grabbing coffee with my lithography machine
Anyone recognize this?
July 27, 2025 at 5:04 PM
Anyone recognize this?
A few more photoresist tests. Note these are all way bigger than the "normal" device they represent. Ex: Intel 4003 metal pattern on a 2" wafer
July 27, 2025 at 5:03 PM
A few more photoresist tests. Note these are all way bigger than the "normal" device they represent. Ex: Intel 4003 metal pattern on a 2" wafer
Unfortunately the Hacker Fab stepper got knocked over at Open Sauce and requires repairs that may be in the $200 to $2000 range. If you like supporting this type of open research please consider joining my Patreon :) patreon.com/c/JohnDMcMas...
July 27, 2025 at 1:52 AM
Unfortunately the Hacker Fab stepper got knocked over at Open Sauce and requires repairs that may be in the $200 to $2000 range. If you like supporting this type of open research please consider joining my Patreon :) patreon.com/c/JohnDMcMas...
Halfway decent result doing large feature lithography with laser printer transparency
July 27, 2025 at 1:50 AM
Halfway decent result doing large feature lithography with laser printer transparency
Also great chatting with @strangeparts.com ! Thanks for the shout out on main stage :) Happy to chat to anyone that wants to learn more about silicon
July 21, 2025 at 9:29 PM
Also great chatting with @strangeparts.com ! Thanks for the shout out on main stage :) Happy to chat to anyone that wants to learn more about silicon
Loved seeing everyone and all the fun projects! Among them I was wondering if this fellow could roll up our exhibit in the Katamari so we didn't have to clean up
July 21, 2025 at 9:25 PM
Loved seeing everyone and all the fun projects! Among them I was wondering if this fellow could roll up our exhibit in the Katamari so we didn't have to clean up
Great seeing everyone at Open Sauce! If you're interested to contribute to FOSS silicon manufacturing by testing tools exhibited here (Maasi spin coater, Hacker Fab stepper, etc) please reach out!
July 21, 2025 at 9:19 PM
Great seeing everyone at Open Sauce! If you're interested to contribute to FOSS silicon manufacturing by testing tools exhibited here (Maasi spin coater, Hacker Fab stepper, etc) please reach out!
Come find us at open sauce to get commemorative wafers!!
July 20, 2025 at 6:51 PM
Come find us at open sauce to get commemorative wafers!!