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Design >> High-Power Design >> The maximum supply voltage for a 0.6um CMOS?
https://designers-guide.org/forum/YaBB.pl?num=1107789971

Message started by ywguo on Feb 7^th, 2005, 7:26am

Title: The maximum supply voltage for a 0.6um CMOS?
Post by ywguo on Feb 7^th, 2005, 7:26am

Hello,

I am designing a voltage detector IC using 0.6um CMOS technology, which requires the supply voltage as high as >10V.

Pls give me any advises or references about power IC.

Is it possible to make a circuit with supply voltage > 10V?

Thanks
Yawei

Title: Re: The maximum supply voltage for a 0.6um CMOS?
Post by FragMent on Jul 7^th, 2005, 2:41am

Thare are some IC foundry that provide high voltage 0.6u CMOS process. For example XFab in Germany

Title: Re: The maximum supply voltage for a 0.6um CMOS?
Post by sheldon on Jul 7^th, 2005, 3:04am

YW,

Also see the PolarFab page. They have a 0.5um process that supports
up to 40V. Are you trying to design a 10V power IC on a stnadard
CMOS process? Or has the process been enhanced for high voltage
applications? For example, does the process have thick gate oxide
for high voltage transistors? Is there an LDMOS or DEMOS device
available? The line width may not be as important as the structure
of the devices available.

Sheldon

Title: Re: The maximum supply voltage for a 0.6um CMOS?
Post by kwkam on Jul 7^th, 2005, 5:24am

You can check the Vds break down voltage from the EDR of the procoess. Usually, 0.6um CMOS process can handle ~10V Vds break down

Title: Re: The maximum supply voltage for a 0.6um CMOS?
Post by qadeer on Jul 12^th, 2005, 9:13am

Yawei,

Even if the device is able to handle vds of 10V, there is a limitation on vgs, vgd and vgb due to oxide breakdown, I would recommend you to check the design rule manual for the process.
If the devices are not able to support, the there are techniques like cascoding the devices to limit the vds and run your circuit at higher supply.

Regards,
Qadeer