I have no idea speed for 40nm. I think PET and POET get confused a lot. The 40nm is PET, not POET. From what I understand the high end prediction of 100x speed increase and high end power savings is POET.
• What Does “POET” Mean? What Does “PET” Mean?
• “Planar Opto-Electronic Technology” and “Planar Electronic Technology”
• What is POET?
• POET is a revolutionary Gallium Arsenide (GaAs) process used to build electrical, optical,
and electro-optical integrated circuits
• Supports a full range of electrical and optical active and passive circuit components
• Very high performance versus existing silicon (up to 100x faster)
•• Very low power consumption versus existing silicon (up to 95% less)
•
• Much more versatile than legacy compound semiconductor processes (GaAs, InP, others)
• Can be manufactured using existing CMOS chip making equipment
• Fully compatible with existing semiconductor design and manufacturing flows
• Will allow unprecedented integration into a single chip of functions that take entire chipsets today for large component cost reduction, and (particularly for optics) tremendous (e.g.
80%) reduction in assembly and test costs
• What is PET?
• PET is the electrical subset of the full POET process
• Can support CMOS, Bi-CMOS, and Bipolar device fabrication
• Offers lower cost, simpler process/fab options for applications that don’t require optical feature set
