Tempe Arizona (Fab 2) and Gresham Oregon (Fab 4) are planned for production of apparently most megaAVR and tinyAVR wafers other than
- PB megaAVR
- unified memory AVR
Colorado (Springs?) (Fab 5) is current.
Product Change Notification - KSRA-07HVQF409 - 11 Dec 2019 - CCB 4031 Initial Notice: Qualification of Microchip Technology Tempe – Fab 2 (TMGR) as an additional fabrication site for selected Atmel products.
Fabricated at Microchip Technology Colorado – Fab 5 (MCSO) using 6 inch wafer or Microchip Technology Tempe – Fab 2 (TMGR) using 8 inch wafer
Reason for Change:
To improve manufacturability and on-time delivery performance by qualifying a second fabrication source at Microchip Technology Tempe – Fab 2 (TMGR) fabrication site.
Estimated Qualification Completion Date:
edit : added Gresham with its PCN in a post (further down the thread)