On Thursday, July 31, 2014 1:50:52 PM UTC-7, Adam Joseph wrote: > > > On Jul 30, 2014, at 10:32 PM, rb-efabless wrote: > > It so appears the mocmos shipped with Electric does not satisfy > following two rules from the manual, on Layer Function, page 245: > > Hi RB, I think you're looking at the 10-year-old manual for the "C > version" of Electric (version 7.00 and earlier); I've made this mistake > several times myself. Unfortunately the old manual was never taken down > from the website and since it's been around longer it gets higher priority > in web searches. Make sure you see "jmanual" in the URL when you're > looking at the webpage (not "manual"). >
Is in both. Older is distinguished in having the well contact illustration the text still refers to. See end of: new: http://www.staticfreesoft.com/jmanual/mchap08-04.html old: http://www.staticfreesoft.com/manual/text/chap08-05.html old: http://www.staticfreesoft.com/manual/images/chap08-07.png Of similar nature(?), few lines earlier (old & new manual), don't find [extra]fun=Pseudo layers in any shipped XML file: -quote "pseudo" indicates that this layer is a pseudo-layer, used for pin construction... There *must* be a "pseudo" layer for every layer used to build arcs. ... pins are constructed from "pseudo" layers. -quote-end > 1. There must be a separate diffusion layer for the p++ or n++ used as a > contact in a P−well or N−well, respectively; it cannot be the same layer > that is used for diffusions in active devices. > > This is no longer required -- the LF150, ST65, and UMC65/55 technology XML > files have a single diffusion layer "Diff" and a single "Diff"-M1 contact > primitive, and they work fine. > Many thanks for your feedback and data points. > > Is it only necessary iff LVS-ing the mos with a 4th body terminal, or > would break spice netlisting for example? > > Spice netlisting is usually done from Electric schematic cells, not from > Electric layout cells, so how you set up your layout-technology layers > shouldn't influence it. > > I suppose in theory you can dump a spice netlist from an Electric layout > cell, but Electric's support for body connections does not really work well > so most people don't use it. Electric's arc-and-node worldview is > fantastic for managing complex signals, but it isn't well-suited for global > nodes like power/ground/substrate. > > - a > > -- You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
