Hi Steve, This email (see below) was posted to the CMOSedu google group but it relates to implementing n-well resistors using Electric. When the ability to use the n-well or p-well as an arc (so the MOSFET body could be tied to a place other than vdd or gnd) was added to Electric some time back the method that many of use were using to specify resistors stopped working (see Electric_video_7 at: http://cmosedu.com/videos/electric/electric_videos.htm for example).
I've attached several attempts to make the n-well resistor both NCC and ERC (well check) correctly. I couldn't figure out the difference between the various types of resistors but "v2" of the ARC n-well layout uses an n-well schematic symbol. If we could get this issue, and a similar one for capacitors if the contact is placed over both poly1/poly2, resolved before the next release of Electric that would be great. If I can help in any way please let me know. Also, to everyone using Electric, I may be updating the video tutorials at the link seen above. Would it be better if there were written tutorials instead (or in addition to new videos???) Note that sometimes too much information is worse than too little ;-). I'll attempt to simplify the tutorials no matter what. Thanks, Jake. > I'm new in the group and I'm very interested in cmos design. > I'm trying to layout a nwell resistor, so I watched the video from > your homepage in order to acomplish that. (Electric_10_2 (2:13) - How > to layout a 4-to-1 divider using four 10k n-well unit cells).The thing > is that I'm getting 12 Well Check errors, and I don't understand > what's going on, cause I did just as you ( Dr. Baker) did. > I want to simulate this layout, but I cant make it happen cause I'm > still getting this errors. > > When I do the Well Check I got 4 of this errors ( Short circuit > between well contacts ) > and 8 of this ( N-Well contact not connected to power) > > -- http://CMOSedu.com/jbaker/jbaker.htm --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/electricvlsi?hl=en -~----------~----~----~----~------~----~------~--~---
nwell_resistors.jelib
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