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| S8FMLT Release Notes |
| Revision 0.1.2 |
| December 27, 2019 |
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| Table of Contents |
| ================= |
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| Table of Tables |
| =============== |
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| Revision History |
| ================ |
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| +--------------+------------+---------------+---------------------------------------------+ |
| | **Revision** | **Date** | **Author** | **Change Description** | |
| +--------------+------------+---------------+---------------------------------------------+ |
| | 0.0.0 | 2018/03/30 | Julia Szemiot | Initial IP release | |
| +--------------+------------+---------------+---------------------------------------------+ |
| | 0.1.0 | 2018/05/15 | Ben Madden | Fixed techLib, LVS issues | |
| +--------------+------------+---------------+---------------------------------------------+ |
| | 0.1.1 | 2019/03/28 | SW PDK team | Snap symbol pins to 0.0625 snap grid | |
| +--------------+------------+---------------+---------------------------------------------+ |
| | 0.1.2 | 2019/12/27 | SW PDK team | Document cleanup—header, footer, title page | |
| +--------------+------------+---------------+---------------------------------------------+ |
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| Reference Documents |
| =================== |
| |
| +---------+------------------+------------------------------------+ |
| | **No.** | **Date/Version** | **Title** | |
| +=========+==================+====================================+ |
| | 1. | V1.0.1 | sw_s8_pdk_Release_Notes_V1.0.1.pdf | |
| +---------+------------------+------------------------------------+ |
| | 2. | V0.1.1 | sw_scs8ls_Release_Notes_V0.1.1.pdf | |
| +---------+------------------+------------------------------------+ |
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| V0.1.1 Updates and Known Limitations |
| ==================================== |
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| The V0.1.1 S8FMLT release is the latest alpha release of the SkyWater S130 (“S8”) technology S8FMLT IP. This release has been tested on a limited set of IP and contains known issues. Any known limitations with the IP are documented in the Release Notes (i.e. this document). |
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| Supported Tool Versions |
| ----------------------- |
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| The S8FMLT V0.1.1 IP was developed and tested with the tools listed in Table 1. |
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| Table : Supported tool versions for S8FMLT V0.1.1 |
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| +------------------+--------------+ |
| | **Tool** | **Version** | |
| +==================+==============+ |
| | Cadence Genus | 17.20-p003_1 | |
| +------------------+--------------+ |
| | Cadence Xcelium | 17.10-s003 | |
| +------------------+--------------+ |
| | Cadence Innovus | 18.12 | |
| +------------------+--------------+ |
| | Cadence Spectre | 17.10.160 | |
| +------------------+--------------+ |
| | Cadence Virtuoso | ic617.715 | |
| +------------------+--------------+ |
| | Mentor Calibre | 2018.1_27.18 | |
| +------------------+--------------+ |
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| The following tools are not supported yet for S130: |
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| - Synopsys HSPICE |
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| - Electromigration |
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| - Reliability / Device aging models |
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| V0.1.1 Bug List |
| --------------- |
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| Bug tracking software is used to track tasks related to IP development. The term “bug” refers to a tracked item, and does not necessarily indicate a problem that is being fixed. |
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| Table 2 lists the bugs that were addressed in this IP release. |
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| Table : Bugs addressed in V0.1.1 |
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| +---------+---------------+------------------------------------------------+ |
| | **Bug** | **Component** | **Summary** | |
| +=========+===============+================================================+ |
| | 1080 | Libraries | Repair s8fmlt library | |
| +---------+---------------+------------------------------------------------+ |
| | 1115 | Libraries | Confirm s8fmlt digital libraries | |
| +---------+---------------+------------------------------------------------+ |
| | 1133 | Libraries | Investigate W/L Issues in s8fmlt | |
| +---------+---------------+------------------------------------------------+ |
| | 1181 | Libraries | LVS for s8fmlt 8k, 16k, 32k | |
| +---------+---------------+------------------------------------------------+ |
| | n/a | Schematic | Snap Schematic symbol pins to 0.0625 snap grid | |
| +---------+---------------+------------------------------------------------+ |
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| V0.1.1 Known Limitations |
| ------------------------ |
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| The following is a list of known issues with the V0.1.1 S8FMLT IP. |
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| The condiode element requires a .simrc file for correct CDL netlisting. The file is $PDK_HOME/VirtuosoOA/examples/simrc. The file should be copied to .simrc for automatic sourcing in the user's work area (same location as .cdsinit). |
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| Overview |
| ======== |
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| The SkyWater S8FMLT Release Notes contain information regarding the Flash Macro available from SkyWater for this technology and its known limitations. |
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| Digital PDK |
| =========== |
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| DRC |
| --- |
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| Requirements |
| ~~~~~~~~~~~~ |
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| - Calibre Rundecks: $PDK_HOME/DRC/Calibre/*Rules\* |
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| **Calibre** DRC Rundecks |
| ~~~~~~~~~~~~~~~~~~~~~~~~ |
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| Five Calibre rundecks are available: |
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| 1. drcRules: General DRC rundeck |
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| 2. softRules: ERC rundeck |
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| 3. stressRules: Sealring checks |
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| 4. latchupRules: Latch-up and antenna checks |
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| 5. fillRules: Metal fill rundeck is being developed |
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| A clean run for the top 4 rundecks is required for every design. |
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| The metal fill deck is for timing purposes and can be loaded into Quantus; the final metal fill will be added at tapeout. |
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| There is an additional rundeck called cldrcRules. |
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| This rundeck converts all layers to a version ready for tapeout. It also adds in the final metal fill. This rundeck will usually be used at the Foundry only as part of final tapeout process. |
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| **Execution** |
| ~~~~~~~~~~~~~ |
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| Calibre DRC can be run from within Calibre DESIGNRev: |
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| 1. Load the GDS written out from Innovus. |
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| 2. Launch “Verification -> Run nmDRC”. |
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| 3. At “Rules -> DRC Rules File” enter “$PDK_HOME/DRC/Calibre/<rundeck_name>”. |
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| 4. At “Rules -> DRC Run Directory” enter the local directory name with the title of the rundeck, i.e. “<local path>/drc” or “<local path>/stress”. |
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| 5. At “Inputs” press “Export from layout viewer”. |
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| 6. Click “Run DRC”. |
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| LVS |
| --- |
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| .. _requirements-1: |
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| Requirements |
| ~~~~~~~~~~~~ |
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| To ensure proper execution with the correct settings, Calibre LVS should be run using one of these two runsets: |
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| - Calibre LVS, standard runset: $PDK_HOME/LVS/Calibre/s8_lvs_runset |
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| - Calibre LVS, runset with custom include file: $PDK_HOME/LVS/Calibre/s8_lvs_runset_include |
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| The runsets are identical, except the second runset allows the use of a custom include file. This fill must be called “Calibre_LVS_Include” and must reside in the user’s project directory. The custom include file allows the user to specify additional LVS settings. For example, the s8fmlt_8k_sys cell requires schematic diodes to be filtered to give clean LVS; in this case, the “Calibre_LVS_Include” file should contain this line: |
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| LVS FILTER D OPEN SOURCE |
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| Both runsets load the following Calibre LVS rule file: |
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| - $PDK_HOME/LVS/Calibre/lvs_s8_opts |
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| .. _execution-1: |
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| **Execution** |
| ~~~~~~~~~~~~~ |
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| All top level cells are LVS clean: s8fmlt_8k_sys, s8fmlt_16k_sys, and s8fmlt_32k_sys. |
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| PEX |
| --- |
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| .. _requirements-2: |
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| Requirements |
| ~~~~~~~~~~~~ |
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| Calibre xRC is supported. To ensure proper execution with the correct settings, Calibre xRC should be run using one of these two runsets: |
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| - Calibre xRC, standard runset: $PDK_HOME/PEX/xRC/s8_xRC_runset |
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| - Calibre LVS, runset with custom include file: $PDK_HOME/LVS/Calibre/s8_xRC_runset_include |
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| As with LVS, the “s8_xRC_runset_include” allows the use of a custom include file (“Calibre_LVS_Include”). |
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| Both runsets load the following Calibre xRC rule files: |
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| - $PDK_HOME/PEX/xRC/xrcControlFile_s8 |
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