Vertical DMOS device in integrated circuit
View Patent ↗An integrated circuit that includes at least one vertical conduction DMOS device and other semiconductor devices.
1. An integrated circuit comprising:
a semiconductor wafer that includes a plurality of semiconductor devices, said plurality of semiconductor devices including a CMOS and a first vertical conduction DMOS and a second vertical conduction DMOS, each vertical conduction DMOS including a gate, one power electrode on one side thereof, and another power electrode on an opposing side thereof, a first insulation wall adjacent said CMOS and said first DMOS and a second insulation wall adjacent said CMOS and said second DMOS and an insulation layer under said CMOS and extending between said first insulation wall and said second insulation wall, wherein said CMOS is disposed between said first DMOS and said second DMOS and insulated from said first DMOS and said second DMOS by an insulation tub comprised of said first insulation wall, said second insulation wall and said insulation layer.
2. The integrated circuit of claim 1 , wherein said first and second insulation walls and insulation layer are comprised of silicon dioxide.
3. The integrated circuit of claim 1 , wherein said semiconductor wafer is comprised of a first wafer and a second wafer fused to said first wafer.
4. The integrated circuit of claim 3 , wherein said first and said second wafers are comprised of silicon.
5. The integrated circuit of claim 3 , wherein said another power electrode extends through said second wafer to reach said DMOS.
6. The integrated circuit of claim 1 , wherein at least one of said plurality of semiconductor devices is a MEMS.
7. The integrated circuit of claim 1 , wherein at least one of said plurality of semiconductor devices is a sensor.
8. The integrated circuit of claim 1 , wherein at least one of said plurality of semiconductor devices is an actuator.