The 3.5 μm lithography process was the semiconductor process technology used by some semiconductor companies during the mid 1970s. This process was later superseded by 3 µm, 2 µm, and 1.5 µm processes.

Industry

Fab
Process Name​
1st Production​
Contacted Gate Pitch​
Interconnect Pitch​
Metal Layers​
Technology​
Wafer

Motorola
? nm
? nm
?
nMOS
?"

3.5 μm microcontrollers

• Bell Labs
  • BELLMAC-4
• Motorola
  • 68000
  • 68010

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