PS: I noticed I neglected to connect the bulk terminal on one of the 4- terminal PMOS in SCH but had it connected in LAY. LVS did not catch it (LVS reports "Summary for all cells: exports match, topologies match, sizes match")
On Oct 25, 8:26 am, Dave <[email protected]> wrote: > [Update: 90 minutes or so later...] > More extensive editing: changing common PMOS tubs to individual tubs > on cascoded devices. > This required changing 3-terminal PMOS to 4-terminal devices, rewiring > SCH and modifying LAY. > Same issue - active and contact dissappearing. > Switching between "Vector" and "Pixel" did not help, but switching to > "Layer" did. > However, switching back did not change anything: active and contact > only visible with "Layer" option (parameters at default) > > Shutting down Electric and bringing it back up restored the display > > On Oct 25, 6:59 am, Dave <[email protected]> wrote: > > > OK...I had a chance to take some time and poke around a bit with 9.01 > > Started with default - which I discovered is "Vector" > > > I took the mocmos circuit I've been working on with 8.11 - a bandgap > > with cascoded PMOS and about 200k of HiPoly resistors. > > It came up in layout mode OK and I switched back and forth between > > layout and schematic with no problems. > > I then made several component value changes in SCH and when I switched > > back to LAY, the active and contacts had disappeared. > > I changed display algorithms - to "Pixel" - per Dmitry and the layers > > came back. > > The layers were still visible when I switched back to "Vector". > > An interesting change when I switched to "Layer" - but all apparently > > visible. I haven't explored this option as it was listed as > > "Experimental". > > > I will continue to explore the differences between "Pixel" and > > "Vector", but for the time being, I'll use "Pixel" and see what > > happens > > > Thanks ... and I hope this was of some use to you. It was to me. > > > Dave > > > On Oct 22, 10:40 am, Dave <[email protected]> wrote: > > > > I haven't had a chance to play with the display options yet. > > > I'll need to get this current task completed before I can get into > > > "diagnostics" mode again. > > > I just wanted to raise a flag for now. > > > > I'll dig a little deeper when I can (this coming week I hope) and > > > respond with my results. > > > > Dave > > > > On Oct 21, 6:58 am, Dmitry Nadezhin <[email protected]> wrote: > > > > > Dave, > > > > > Does it happen with all display algorithms (Pixel, Vector, Layer) ? > > > > They are switched in "Preferences|Display|Display Control". > > > > > -Dima > > > > > On Fri, Oct 21, 2011 at 2:17 PM, Dave <[email protected]> wrote: > > > > > I'll check the display setting. I know I didn't provide much > > > > > information but I thought I'd report an issue - perhaps others are > > > > > having the same problem ... perhaps I have something subtle set up > > > > > incorrectly. > > > > > I'm using the default mocmos components - this isn't happening on any > > > > > one particular JELIB - that would make it easy - but I'll try to > > > > > examine a few more things once it happens again. > > > > > It's sporadic - I have trouble reproducing it here. I'm almost > > > > > suspecting an interaction with other programs on this machine. > > > > > > The one circuit this happened with that inspired me to write is a > > > > > fairly simple bandgap - not a large degree of circuit complexity. > > > > > It has not yet happened with 8.11 but I just changed back yesterday. I > > > > > also haven't determined if it happens with JELIBs originally developed > > > > > under older versions. > > > > > > Is there a way to upload screenshots? > > > > > > Thanks > > > > > Dave > > > > > > On Oct 20, 9:14 pm, Steven Rubin <[email protected]> wrote: > > > > > > At 05:35 AM 10/20/2011, you wrote: > > > > > > > >Perhaps I'm not using the term "stability" correctly but I've > > > > > > >reverted > > > > > > >back to v8.11 for now at least > > > > > > > >Nothing I can pinpoint specifically - and perhaps it's on this end > > > > > > >- > > > > > > >but I'm finding v8.11 to be more "stable" than v9.01. I haven't > > > > > > >compared to v9.00. > > > > > > > >I'm using the default "mocmos" technology in preparation for the > > > > > > >actual ON C5 process and then a few other more exotic processes. > > > > > > > >The most obvious problem is layer visibility - particularly > > > > > > >noticeable > > > > > > >on the active regions - "active" and contacts just disappear in > > > > > > >both > > > > > > >the main window and in the Components menu until I shut down and > > > > > > >re- > > > > > > >start. Doesn't change the info, just the visibility. Refreshing the > > > > > > >window doesn't help; neither does zooming or panning. It doesn't > > > > > > >seem > > > > > > >to be a consistent problem - I can't seem to correlate a cause > > > > > > > Which display algorithm are you using? Look in your Display > > > > > > Preferences. The default one ("Vector") is best, but you might play > > > > > > around with them and see if others fix your problem. > > > > > > > If you can reproduce this, I'd like to know. Then I can fix it. > > > > > > > >I'm also having some trouble making schematic connections. Every > > > > > > >once > > > > > > >in a while, I have to route a different path to connect arcs. I > > > > > > >haven't noticed this in layout mode. > > > > > > > Again, if you have a JELIB and instructions for reproducing this > > > > > > problem, please send it to me. > > > > > > > -Steven Rubin > > > > > > -- > > > > > 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. -- 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.
