#homecmos on 2014-08-07 — irc logs at freenode.irclog.whitequark.org

2013-03-20 01:50 azonenberg changed the topic of #homecmos to: Homebrew CMOS and MEMS foundry design | Wiki: http://homecmos.drawersteak.com/wiki/Main_Page | Repository: http://code.google.com/p/homecmos/ | Logs: http://en.qi-hardware.com/homecmos-logs/

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11:37 <osfd> Hi there !

11:38 <osfd> how do I know a process is only 0..3.3V or -3.3..+3.3V ?

11:38 <SpeedEvil> Voltage is always relative

11:38 <osfd> the process I use mention 3.3V supply voltage and a vds_max of 3.6V

11:38 <SpeedEvil> You can call it 0 and 3.3 or 100 and 103.3

11:39 <SpeedEvil> your process doesn't care about what you call the voltages - just the maximum relative voltages across the chip

11:39 <osfd> SpeedEvil: well, I know that...

11:39 <SpeedEvil> osfd: sorry - I'm not quite understanding the issue

11:40 <osfd> well, I work with AMS0.35u

11:41 <osfd> most of the asic I can see (IEEE mostly) are all working in positive supply voltage 0-3.3V

11:41 <osfd> and I can't remember of a chip working with different supply rails

11:42 <osfd> so of course, I guess I can work with -1.65..+1.65V

11:42 <osfd> but what if I would need to work with -3.3..+3.3

11:42 <osfd> ?

11:57 <SpeedEvil> you in general need a bigger process - if you don't want to change the design

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