Attendees

@Thomas Watteyne
@David Burnett
@Titan Yuan
@Fil Maksimovic
@Sara Faour
@Kristofer PISTER

Action Items

Updates

workshop @Thomas Watteyne
- thanks @David Burnett for filling in page
- thanks @Fil Maksimovic for agreeing to write intro paragraph to CFP
- we have a website! https://project.inria.fr/crystalfree/
- rooms are booked for the 3 days Sep 12, 2023 - Sep 14, 2023
- can we rename to “Invited Workshop on Crystal-Free Radios, Chip-Scale Systems and Swarms”?
@David Burnett
- 5-bond SCuM board w/ 337 battery holder sent for mfg
  - Student (Luis) made an argument for GSG bonds instead of just S for antenna so the Poynting vector is in the direction of the wirebonds
- Can likely get away with much cheaper ENIG surface finish
- Found room temperature stored, room temperature cured silver epoxy w/ 10 min, 20 min or 4 hour working time https://www.mouser.com/ProductDetail/MG-Chemicals/8331D-14G?qs=doiCPypUmgEsDWzvEstgPw%3D%3D
- Student (Jacob) has been extensively testing using only a single supply, will add tests at 1.4 V and 1.3 V soon and test from a 337 battery before sending out chips for wirebonding
- Jacob also assembled a SCuM “kit” DB is taking to APL-UW in Seattle tomorrow
@Sara Faour / @Fil Maksimovic
- attempt at using code to generate either a unique identifier, ideally PUF
- extracting today 64 bits
  - code actually reads 8 times 8 bytes (64B), but no technical difficulty to read much more
- sweep 900mV to 1.1V, same value
- need to test against temperature
- @Kristofer PISTER : ramp rate on the VDD voltage influences PUF initial state
- PUF vs. indentifier: hamming distance and entropy, testing code
- quite a bit of SOTA
- code: https://github.com/Sara-Fa/scum-test-code/tree/develop/scm_v3c/applications/sram_read
- Considering BLAKE2s (BLAKE optimized for 32 bit CPUs) hashing algorithm
  - BLAKE3 faster but designed for x86 architecture