dick_freebird
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I think it's down in Edit>Options?
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Your dogbone element looks the opposite of dogbone FET active areas that I have seen.
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It is worth asking, how someone could specifically change the default behavior. Like in a .klayoutrc entry of proper syntax? Or some other spot in the "init chain"? Is there a way to dump all settings that would lead to that syntax? Or …
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I was thinking more of a common CMOS case where "a" FET is made up of multiple gate stripes, and in some PDKs each gate-stripe is extracted as its own device, while schematic shows only one; the layout might have (say) four stripes. "…
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OK, so I must ask (in lieu of reading deeply for my own edification): does LVS include a "permute parallel" ability, with rules by device-type, and is it only stymied by the "parallel elements" being under hierarchy? If yes, do…
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I suggest trying to find the packages "manually" at the purported source. There might be simple issues like a version-increment that "breaks" a hard coded path in the installer, or a stale installer you happened to grab? Too ba…
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Not sure this is helpful, but seems a lot simpler to just "Show All" or "Show Only Selected" in the layer window, and Alt-Pr-Scrn? I mean, even invoking the script takes more keyboard / mouse activity than that. But I'd expect…
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Can't say I know anything about anything, but this: "The layer id would be 10^9+1." makes me wonder about stuff like: * can this expression be evaluated, if indeed it's put in that literal form to "whatever receives it"? * …
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Yeah, I am "encountering" Virtuoso again here too... my approach is to use Virtuoso to spit out the geometry- specific layouts for the transistors, stream out that "palette", then use klayout for the actual layout work and then …
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OK, chased this down to something a bit peculiar. The manual says you have to "Don't forget to click "Apply" to take over the current settings." Turns out that "OK" (which I was using instead) -does not- perform the …
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I use klayout for business, from home. I would like to see add-ons have the same liberal licensing as the platform. Ideally, just copy it.
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Depending on how many variants, perhaps you want to use cell copy and rename, in the Navigator pane, to make the uniqueness by naming and retargeting the instance?
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I've got no advice for you about scripting, but why not just make a copy, open the layout, put the Navigator pane visible and use the Delete Cell, Deep Delete function to remove everything you don't want from the database? If the layout is nicel…
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That was my lack of said skillz, not yours....
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My first step would be to go back to the customer and see whether there's a layout saved from before the flatten-all step was taken.
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This all leads me back around to my desire for an "assertion based" extraction (as opposed to a logic applied to an assembly of shapes). A boundary polygon tagged with device-type text, and pin features (e.g. contact) tagged with pin-nam…
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You can use Partial mode to select and then Delete a vertex or vertices, and/or move around the ones that remain. The vertices are not positioned by some global setting, they are hand placed (or converted from some other tool's hand placement I su…
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As it happens, one of my chips under design right now uses a "Epi FET" for a bias current feed, and this is not like any explicitly designed, gain-element JFET. It is just a region of N-epi pinched between two ISO (P+) bars, running nearl…
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Found an example layout for a 40V PJFET. There is an asymmetric field plate feature. If I can find your email I'll send you the .gds and layer assignments.
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I am wondering whether a scheme for "select" to pre-figure extents, could work for both texts -and- my interest in making a "constrained selectable area" for layout cells that is defined by a intra-cell object (like Cadence's us…
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The PJFETs I have used, used a simple bar of emitter (N+) across the channel implant, and its ends, outside the channel stripe, contact the collector region. So although the front and back gate are separate they are electrically common. In a JI te…
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There was another post like this pretty recently, something about recursive hierarchy if I recall?
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For what little it's worth... If the objects are touching they aren't usually considered to be a spacing error, but rather pieces of a whole. I think you might want to do a minuscule shrink (like just one DBU) and then the gaps would get flagged …
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The "window of selectability" can still be tricky, especially if you're zoomed out working with large text. I have upped the setting to 16 pixels to make it a little easier to grab, but I still "misfire" a lot.... (Image)
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I have run into trouble using paths relating to the non-grid vertices of the "hull". I have moved to a style where I build polygon "paths" out of ortho and diagonal on-grid "sticks" and merge them. I think that a coo…
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I don't know from Apple, but in Windows (and especially with aftermarket mouses) there is often a sensitivity / speed / velocity sensitivity settings-panel you can get to. Maybe there is some layer like that, that you can get at?
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I wonder whether the "duplicate" command can be used in your Python script? That is meant to make second, third, ... in the same location. Maybe it works cleaner (if it is a Python accessible function)? I can draw three identical same la…
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I've got zero Python skillz, but I see nothing that would (to me) increment "i" in the "for" statement, or say by how much. Maybe add a bit of "telemetry" such as an "echo $i" (per whatever is Python syntax)…
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Thanks, Matthias, This would do the job. I was unaware of this tool. Now I note that the operation is yet another, but "orthogonal" "flip side" of the traditional "chop" function (separate as polygon object from inter…
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If you put a minuscule "box" object on the same layer and inside the path's edge-edge extents, and select them both, the Merge function will combine them into a polygon. (Image)