Separate tutorials

Author: mguthaus

klayout-drc.md

@@ -0,0 +1,47 @@
+
+# Running DRC 
+
+
+There are a few options for running DRC: 
+- BEOL: "back-end of line" or device layer checks only
+- FEOL: "front-end of line" or metal layer checks only
+- Full: Both BEOL and FEOL checks.
+- Custom: A custom set of DRC checks (BEOL, FEOL, grid, seal, etc.)
+
+Sometimes, you might want to run just the FEOL checks to save run-time if, for
+example, you are just checking the routing and you know your standard cells
+pass DRC.
+
+If you run DRC (Full), you wil get a window with the results like this:
+
+![DRC Marker Browser with no errors](klayout/klayout-marker-browser.png)
+
+which has the DRC errors (if any) categorized by the cell, type, etc. The
+inverter should pass DRC with no errors.
+
+If you load the "sky130_fd_sc_hd__inv_1-errors.gds" file, and run DRC, you should
+see the following errors (after expanding the tabs):
+
+![DRC Marker Browser with errors](klayout/klayout-marker-browser-errors.png)
+
+If you click on a given error, it will open an explanation as well as highlight
+the related error in the layout with a thin black line.
+
+Detailed explanations of the DRC errors can be found in the Sky130 documentation:
+[https://skywater-pdk.readthedocs.io/en/main/rules.html](https://skywater-pdk.readthedocs.io/en/main/rules.html)
+We highlighted the poly rule and can go to the "poly" section to see the details:
+
+![Poly design rules](klayout/klayout-poly-designrules.png)
+
+Specifically, poly.7 specifies the "Extension of diffusion beyond poly" and poly.8 specifies the "Extension of poly beyond diffusion".
+If you look closely at the examples, there is an example of poly.7 and poly.8 with measurement markers:
+
+![Poly.7 and poly.8 examples](klayout/klayout-poly7-poly8.png)
+
+In the example, there are also licon.1 and licon.5 errors which are available
+in the [licon
+section](https://skywater-pdk.readthedocs.io/en/main/rules/periphery.html#licon)
+of the design rules.
+
+
+

klayout-edit.md

@@ -0,0 +1,2 @@
+
+# Editing shapes in KLayout

klayout-lvs.md

@@ -0,0 +1,7 @@
+
+# Running LVS 
+
+Make sure to uncheck the "scale" option in the LVS dialog box. Sky130 uses an
+odd scale factor in the spice netlist of microns instead of meters. If you
+don't uncheck this, the transistor sizes won't match and your LVS will fail.
+

klayout.md

@@ -77,8 +77,6 @@ the following contents:
 
 ![Sky130 menu](klayout/klayout-sky130-menu.png)
 
-### 2.5D Viewer
-
 The 2.5D viewer lets you look at and interact with a "3D" view of the layout:
 
 ![2.5D Cell View](klayout/klayout-d25.png)
@@ -87,61 +85,9 @@ This is useful for seeing how the the cell will look with the z-dimension
 information. Note that commercial tools do not have this feature and it is only
 really used for educational purposes.
 
+The [DRC](klayout-drc.md) and [LVS](klayout-lvs.md) tools are also available in the Sky130 menu.
 
-### Running DRC
-
-
-There are a few options for running DRC: 
-- BEOL: "back-end of line" or device layer checks only
-- FEOL: "front-end of line" or metal layer checks only
-- Full: Both BEOL and FEOL checks.
-- Custom: A custom set of DRC checks (BEOL, FEOL, grid, seal, etc.)
-
-Sometimes, you might want to run just the FEOL checks to save run-time if, for
-example, you are just checking the routing and you know your standard cells
-pass DRC.
-
-If you run DRC (Full), you wil get a window with the results like this:
-
-![DRC Marker Browser with no errors](klayout/klayout-marker-browser.png)
-
-which has the DRC errors (if any) categorized by the cell, type, etc. The
-inverter should pass DRC with no errors.
-
-If you load the "sky130_fd_sc_hd__inv_1-errors.gds" file, and run DRC, you should
-see the following errors (after expanding the tabs):
-
-![DRC Marker Browser with errors](klayout/klayout-marker-browser-errors.png)
-
-If you click on a given error, it will open an explanation as well as highlight
-the related error in the layout with a thin black line.
-
-Detailed explanations of the DRC errors can be found in the Sky130 documentation:
-[https://skywater-pdk.readthedocs.io/en/main/rules.html](https://skywater-pdk.readthedocs.io/en/main/rules.html)
-We highlighted the poly rule and can go to the "poly" section to see the details:
-
-![Poly design rules](klayout/klayout-poly-designrules.png)
-
-Specifically, poly.7 specifies the "Extension of diffusion beyond poly" and poly.8 specifies the "Extension of poly beyond diffusion".
-If you look closely at the examples, there is an example of poly.7 and poly.8 with measurement markers:
-
-![Poly.7 and poly.8 examples](klayout/klayout-poly7-poly8.png)
-
-In the example, there are also licon.1 and licon.5 errors which are available
-in the [licon
-section](https://skywater-pdk.readthedocs.io/en/main/rules/periphery.html#licon)
-of the design rules.
-
-
-
-
-
-### Running LVS
-
-Make sure to uncheck the "scale" option in the LVS dialog box. Sky130 uses an
-odd scale factor in the spice netlist of microns instead of meters. If you
-don't uncheck this, the transistor sizes won't match and your LVS will fail.
-
+The [Edit](klayout-edit.md) tutorial has some useful instructions for editing shapes in the layout.
 
 ## Closing crash