luke/magic - magic - Gitea: Git with a cup of tea

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(1) Added a check for unclosed boundaries when reading GDS. This is diagnostic only and does not change the read-in behavior. (2) ext2spice: Corrected an error that had been introduced into version 8.3.171 that accidentally marks all devices as visited which causes all source/drain areas and perimeters to be output as zero. (3) extract: Sweeping changes to handling of fringe capacitance. Removed the (recently added) "fringeshieldhalo" parameter from the tech file. Reworked the fringe capacitance models based on results from the "capiche" project (github/RTimothyEdwards/capiche). Fringe shielding is now done by clipping fringe at the boundary of a shielding shape, rather than trying to calculate the amount of shielding (as the "capiche" project proved this to be equivalent). Values for partial fringing are modeled by atan(x), which like the sidewall (1/x) curve, extends to infinity and values are limited by the halo but do not otherwise depend on the halo. Because of this, the halo can be made variable and controlled by the user for deciding on the tradeoff between accuracy and run time. A new command option "extract halo" was added to allow this control over the halo distance.

2023-01-27 17:47:37 +01:00

8.3.364