- ProScan’s maskless proton-beam lithography was highlighted: it uses an on-chip particle-accelerator array of 3 million parallel proton beams to write 20 nm pixels across a 300 mm wafer at 100 wafers/hour with far less heating than e-beam systems.  
- Participants compared proton vs. electron beams, noting protons’ larger mass-to-charge ratio gives tighter focus, shorter de Broglie wavelength, and ~10× lower collateral heating for the same exposure dose.  
- A linked MDPI paper on MLCC actuators was shared, clarifying that multilayer ceramic capacitors expand heightwise, informing a concept for PCB-based flexure actuators.  
- Discussion turned to low-cost interferometers as a necessary metrology tool for building flexible positioning stages in open-source photolithography setups.  
- PVDF was mentioned as an inexpensive, flexible piezoelectric material suitable for dense MEMS actuator arrays.  
- Security concerns arose over hardware-level CPU-ID schemes enabled by advanced lithography, with Intel’s Management Engine cited as an existing “dystopia.”  
- Historical context was provided via Phil Sung’s 2008 blog post predicting the trajectory of open-source mobile hardware (Neo FreeRunner) and his later role at cloud-lab startup Transcriptic.