decaf14
Newbie level 5
Hello,
I'm a complete beginner to fabrication processes and IC design. I'm an amateur PCB designer and aspiring analog circuit designer. However, this summer I'm working on a research project that's delving into device physics and fabrication a little bit, and I'm very lost.
I've designed a circuit that operates well using an ALD110900 zero threshold MOSFET. However, I need to make the circuit very small if I want it to work for my intended purpose, and the ALD MOSFET is huge (relatively) for my application. I'd also like to have complete control over design parameters, so I figured I should learn how to design a zero-threshold MOSFET, but the learning process has been tough.
I've found this paper that mentions 0.13 um IBM CMOS MOSFETS.
https://sbmicro.org.br/sforum-eventos/sforum2012/028.pdf
I have also found this post with fairly detailed information on zero threshold MOSFETS.
https://www.edaboard.com/showthread.php?360776-Zero-threshold-MOSFETs
Both resources have been extremely useful, but I'd like to learn more. Specifically I want to ask some questions that might be common knowledge to people in the field.
I want some direction from you guys for good learning material so I don't go down a fruitless path. What is the industry standard modelling software for these MOSFETS? Can I have one of these prototyped in a fabrication house? What is a good learning resource for a total beginner for both modelling software and fabrication education? Is there any information that the experts would like to share on zero threshold MOSFETS? What is the industry standard 'Altium' or 'OrCAD' of the MOS design world?
In case it affects your answer, a couple of details about the circuit: it is an oscillator that works on a supply voltage of 0.3 volts. I cannot use inductors because they are large, and I'd eventually like to get it all on one CMOS process. I also cannot use a charge pump because the circuit is for remote sensing, so no wires can attach and no inductors can be used for RF coupling the clock signal in.
Any help is greatly appreciated!
I'm a complete beginner to fabrication processes and IC design. I'm an amateur PCB designer and aspiring analog circuit designer. However, this summer I'm working on a research project that's delving into device physics and fabrication a little bit, and I'm very lost.
I've designed a circuit that operates well using an ALD110900 zero threshold MOSFET. However, I need to make the circuit very small if I want it to work for my intended purpose, and the ALD MOSFET is huge (relatively) for my application. I'd also like to have complete control over design parameters, so I figured I should learn how to design a zero-threshold MOSFET, but the learning process has been tough.
I've found this paper that mentions 0.13 um IBM CMOS MOSFETS.
https://sbmicro.org.br/sforum-eventos/sforum2012/028.pdf
I have also found this post with fairly detailed information on zero threshold MOSFETS.
https://www.edaboard.com/showthread.php?360776-Zero-threshold-MOSFETs
Both resources have been extremely useful, but I'd like to learn more. Specifically I want to ask some questions that might be common knowledge to people in the field.
I want some direction from you guys for good learning material so I don't go down a fruitless path. What is the industry standard modelling software for these MOSFETS? Can I have one of these prototyped in a fabrication house? What is a good learning resource for a total beginner for both modelling software and fabrication education? Is there any information that the experts would like to share on zero threshold MOSFETS? What is the industry standard 'Altium' or 'OrCAD' of the MOS design world?
In case it affects your answer, a couple of details about the circuit: it is an oscillator that works on a supply voltage of 0.3 volts. I cannot use inductors because they are large, and I'd eventually like to get it all on one CMOS process. I also cannot use a charge pump because the circuit is for remote sensing, so no wires can attach and no inductors can be used for RF coupling the clock signal in.
Any help is greatly appreciated!