add n-well generator
diff --git a/sky130/magic/sky130.tcl b/sky130/magic/sky130.tcl
index 5fb96a6..638a422 100644
--- a/sky130/magic/sky130.tcl
+++ b/sky130/magic/sky130.tcl
@@ -137,6 +137,8 @@
"sky130::mvsubconn_draw" pdk1
magic::add_toolkit_command $layoutframe "deep n-well region" \
"sky130::deep_nwell_draw" pdk1
+ magic::add_toolkit_command $layoutframe "n-well region" \
+ "sky130::nwell_draw" pdk1
magic::add_toolkit_command $layoutframe "mcon" \
"sky130::mcon_draw" pdk1
magic::add_toolkit_command $layoutframe "via1" \
@@ -446,6 +448,84 @@
#----------------------------------------------------------------
+proc sky130::nwell_draw {} {
+ set w [magic::i2u [box width]]
+ set h [magic::i2u [box height]]
+ if {$w < 3.0} {
+ puts stderr "Deep-nwell region width must be at least 3.0um"
+ return
+ }
+ if {$h < 3.0} {
+ puts stderr "Deep-nwell region height must be at least 3.0um"
+ return
+ }
+ suspendall
+ tech unlock *
+ pushbox
+ pushbox
+ box grow c 0.4um
+ paint nwell
+ popbox
+ box grow c 0.03um
+
+ pushbox
+ box width 0
+ box grow c 0.085um
+ paint li
+ pushbox
+ box grow n -0.3um
+ box grow s -0.3um
+ paint nsc
+ popbox
+ box grow c 0.1um
+ paint nsd
+ popbox
+
+ pushbox
+ box height 0
+ box grow c 0.085um
+ paint li
+ pushbox
+ box grow e -0.3um
+ box grow w -0.3um
+ paint nsc
+ popbox
+ box grow c 0.1um
+ paint nsd
+ popbox
+
+ pushbox
+ box move n [box height]i
+ box height 0
+ box grow c 0.085um
+ paint li
+ pushbox
+ box grow e -0.3um
+ box grow w -0.3um
+ paint nsc
+ popbox
+ box grow c 0.1um
+ paint nsd
+ popbox
+
+ pushbox
+ box move e [box width]i
+ box width 0
+ box grow c 0.085um
+ paint li
+ pushbox
+ box grow n -0.3um
+ box grow s -0.3um
+ paint nsc
+ box grow c 0.1um
+ paint nsd
+ popbox
+
+ popbox
+ tech revert
+ resumeall
+}
+
proc sky130::deep_nwell_draw {} {
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
