GDSII to CIF Revision History

This page contains the summary of GDSII to CIF release dates, versions and changes/fixes made for that release.

Version 2.52    8/30/2013

This version fixes a problem with the -ucb command line option for UC Berkeley. The new version will create BOX entity instead of Polygon when converting GDSII path to CIF.

Version 2.51    6/27/2013

This version works across all versions of LINUX we have in house. These include RH EL 4 (32 and 64 bit), 5 (32 and 64 bit), 6 (64 bit) (all of the preceding are 2.X kernels) and SUSE 12 (64bit - which is a 3.X kernel).

gds2cif input_GDSII_file output_CIF_file top_structure or '=' for default_top_structure -cfg:cfg_file

The config file now supports

BLOCK_TEXT
ON | OFF

In the past GDS2CIF converted TEXT to CIF wires - please refer to Artwork's online documentation. This is the equivalent to BLOCK_TEXT/OFF. With BLOCK_TEXT/ON GDSII TEXT is converted to 94 CIF extensions IF all the characters are "legal" CIF characters as in this example

94 THH103C 1413750 227500 LYR06;

Also a new key word CIF_FONT controls the conversion of GDSII TEXT to drawable data, an example of which is illustrated here:

CIF_FONT
txt.shx 1 o
txt.shx 1 o
txt.shx 1 o
txt.shx 1 o

Each GDSII FONT will be stroked out according to what appears in the corresponding field. The first field is the SHX font to be used, the second is the GDSII path end control (0 - flush, 1 - round, 2 - half-width extended), the third and last field is o for OUTLINE (data is presented as a boundary) or t for TRACE (data is presented as a PATH). Illustration of this usage follows:

The following configuration is consistent with versions previous to v2.51:

CIF_FONT
txt.shx 0 t
txt.shx 0 t
txt.shx 0 t
txt.shx 0 t

Note that even though CIF wires were converted to OUTLINE data (see highlighted "WIRE") TEXT was rendered with flush ended paths.

With the following configuration 

CIF_FONT
txt.shx 1 o
txt.shx 1 o
txt.shx 1 o
txt.shx 1 o

GDSII TEXT is converted to OUTLINE data of round ended PATHS/TRACES