what software do you use to design cmos image sensor?

what software do you use to design cmos image sensor?
1.
I am learning cmos image sensor. and want to design a sensor,
but I don't know what software is much easy to use.
2.
the sensor have many pixels, so when layout , just copy a pixel and pasete to form the array, is this right?
and the schematic also need draw many photodiode, so do the LVS, is this right?
3.
I find a opensource software, name electric CAD, Can we use this software to design CMOS image sensor?

Thank you!!!

You could use electric or magic open source software but I am not a fan of either. Try looking at LASI.

Your other statements are correct.

Keith

1. I Am learning cmos image sensor. and want to design a sensor,
but I don't know what software is much easy to use.

You can use any software as long as you have the right layers to do the layout... since it seems you're not using a specific process with its own PDK you will basically have to start from scratch, so you won't probably have files to simulate, run DRC, LVS etc.

2. The sensor have many pixels, so when layout , just copy a pixel and pasete to form the array, is this right?

Yes

and the schematic also need draw many photodiode, so do the LVS, is this right?

Yes

3. I find a opensource software, name electric CAD, Can we use this software to design CMOS image sensor?

Yes, but as I said you have to do everything on your own... which is quite a complex process

diemilio

is there any tutorial to do the cmos miage sensor design?
step by step?