From 53e98cfc1cd5a7c900713ab70e1d96545bd68719 Mon Sep 17 00:00:00 2001
From: diadatp <admin@diadatp.com>
Date: Tue, 24 Nov 2020 12:52:13 +0530
Subject: [PATCH 1/2] Added capm MIM DRC rules from sky130.tech in open_pdks.
---
docs/rules/periphery/p036-capm_dotdash.csv | 24 +++++++++++-----------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/docs/rules/periphery/p036-capm_dotdash.csv b/docs/rules/periphery/p036-capm_dotdash.csv
index 7261f43a9..257db86b5 100644
--- a/docs/rules/periphery/p036-capm_dotdash.csv
+++ b/docs/rules/periphery/p036-capm_dotdash.csv
@@ -1,13 +1,13 @@
Name,Description,Flags,Value,Unit
-(capm.1),Min width of capm,,N/A,N/A
-(capm.2a),Min spacing of capm to capm,,N/A,N/A
-(capm.2b),Minimum spacing of capacitor bottom_plate to bottom plate,,N/A,N/A
-(capm.3),Minimum enclosure of capm (top_plate) by met2,,N/A,N/A
-(capm.4),Min enclosure of via2 by capm,,N/A,N/A
-(capm.5),Min spacing between capm and via2,,N/A,N/A
-(capm.6),Maximum Aspect Ratio (Length/Width),,N/A,N/A
-(capm.7),Only rectangular capacitors are allowed,,N/A,N/A
-(capm.8),"Min space, no overlap, between via and capm",,N/A,N/A
-(capm.10),"capm must not straddle nwell, diff, tap, poly, li1 and met1 (Rule exempted for capm overlapping capm_2t.dg)",TC,N/A,N/A
-(capm.11),Min spacing between capm to (met2 not overlapping capm),,N/A,N/A
-(capm.12),Max area of capm (um^2),,N/A,N/A
+(capm.1),Min width of capm,,1,µm
+(capm.2a),Min spacing of capm to capm,,0.84,µm
+(capm.2b),Minimum spacing of capacitor bottom_plate to bottom plate,,1.2,µm
+(capm.3),Minimum enclosure of capm (top_plate) by met3,,0.14,µm
+(capm.4),Min enclosure of via3 by capm,,0.2,µm
+(capm.5),Min spacing between capm and via3,,0.14,µm
+(capm.6),Maximum Aspect Ratio (Length/Width),,,
+(capm.7),Only rectangular capacitors are allowed,,,
+(capm.8),"Min space, no overlap, between via3 and capm",,0.14,µm
+(capm.10),"capm must not straddle nwell, diff, tap, poly, li1 and met1 (Rule exempted for capm overlapping capm_2t.dg)",TC,,
+(capm.11),Min spacing between capm to (met3 not overlapping capm),,0.5,µm
+(capm.12),Max area of capm,,,µm²
From 08a0fd2ad3e3937adc50943cbb9d263811cd3821 Mon Sep 17 00:00:00 2001
From: diadatp <admin@diadatp.com>
Date: Sat, 28 Nov 2020 16:49:09 +0530
Subject: [PATCH 2/2] Updated capm and cap2m design rules. Added files missing
from last commit.
X.1a grid spacing rule updated.
Updated capm and cap2m rules in line with PR discussion.
- .4 min enclosure corrected
- .6 aspect ratio added
- .7 shape restrictions updated
- .8 via reference corrected
- obsolete .10 and .12 rules removed
Added cap2m entry in periphery.csv.
Added cap2m to periphery-split-csv.py no_pics list.
---
docs/rules/periphery-rules.rst | 130 ++++++++++++++------
docs/rules/periphery/p018-x_dotdash.csv | 2 +-
docs/rules/periphery/p036-cap2m_dotdash.csv | 11 ++
docs/rules/periphery/p036-capm_dotdash.csv | 10 +-
docs/rules/periphery/periphery-split-csv.py | 1 +
docs/rules/periphery/periphery.csv | 47 +++++--
6 files changed, 144 insertions(+), 57 deletions(-)
create mode 100644 docs/rules/periphery/p036-cap2m_dotdash.csv
diff --git a/docs/rules/periphery-rules.rst b/docs/rules/periphery-rules.rst
index 4b70e5d2b..eb05f59d6 100644
--- a/docs/rules/periphery-rules.rst
+++ b/docs/rules/periphery-rules.rst
@@ -121,7 +121,7 @@
- Value
- Unit
* - :drc_rule:`(x.1a)`
- - p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2 must be on a grid of mm
+ - p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2, capm and cap2m must be on a grid of mm
-
- 0.001
- mm
@@ -1825,63 +1825,53 @@
* - :drc_rule:`(capm.1)`
- Min width of capm
-
- - N/A
- - N/A
+ - 1
+ - µm
* - :drc_rule:`(capm.2a)`
- Min spacing of capm to capm
-
- - N/A
- - N/A
+ - 0.84
+ - µm
* - :drc_rule:`(capm.2b)`
- Minimum spacing of capacitor bottom_plate to bottom plate
-
- - N/A
- - N/A
+ - 1.2
+ - µm
* - :drc_rule:`(capm.3)`
- - Minimum enclosure of capm (top_plate) by met2
+ - Minimum enclosure of capm (top_plate) by met3
-
- - N/A
- - N/A
+ - 0.14
+ - µm
* - :drc_rule:`(capm.4)`
- - Min enclosure of via2 by capm
+ - Min enclosure of via3 by capm
-
- - N/A
- - N/A
+ - 0.14
+ - µm
* - :drc_rule:`(capm.5)`
- - Min spacing between capm and via2
+ - Min spacing between capm and via3
-
- - N/A
- - N/A
+ - 0.14
+ - µm
* - :drc_rule:`(capm.6)`
- Maximum Aspect Ratio (Length/Width)
-
- - N/A
- - N/A
+ - 20
+ -
* - :drc_rule:`(capm.7)`
- - Only rectangular capacitors are allowed
+ - Only rectangular or L-shaped capacitors allowed
+ -
+ -
-
- - N/A
- - N/A
* - :drc_rule:`(capm.8)`
- - Min space, no overlap, between via and capm
+ - Min space, no overlap, between via2 and capm
-
- - N/A
- - N/A
- * - :drc_rule:`(capm.10)`
- - capm must not straddle nwell, diff, tap, poly, li1 and met1 (Rule exempted for capm overlapping capm_2t.dg)
- - :drc_flag:`TC`
- - N/A
- - N/A
+ - 0.14
+ - µm
* - :drc_rule:`(capm.11)`
- - Min spacing between capm to (met2 not overlapping capm)
+ - Min spacing between capm to (met3 not overlapping capm)
-
- - N/A
- - N/A
- * - :drc_rule:`(capm.12)`
- - Max area of capm (um^2)
- -
- - N/A
- - N/A
+ - 0.5
+ - µm
.. figure:: periphery/p036-capm_dotdash.svg
@@ -1890,6 +1880,72 @@
+:drc_rule:`(cap2m.-)`
+---------------------
+
+.. list-table:: Function: Defines MIM capacitor
+ :header-rows: 1
+ :stub-columns: 1
+ :widths: 9 73 6 6 6
+
+ * - :drc_rule:`Name`
+ - Description
+ - :drc_flag:`Flags`
+ - Value
+ - Unit
+ * - :drc_rule:`(cap2m.1)`
+ - Min width of cap2m
+ -
+ - 1
+ - µm
+ * - :drc_rule:`(cap2m.2a)`
+ - Min spacing of cap2m to cap2m
+ -
+ - 0.84
+ - µm
+ * - :drc_rule:`(cap2m.2b)`
+ - Minimum spacing of capacitor bottom_plate to bottom plate
+ -
+ - 1.2
+ - µm
+ * - :drc_rule:`(cap2m.3)`
+ - Minimum enclosure of cap2m (top_plate) by met4
+ -
+ - 0.14
+ - µm
+ * - :drc_rule:`(cap2m.4)`
+ - Min enclosure of via4 by cap2m
+ -
+ - 0.2
+ - µm
+ * - :drc_rule:`(cap2m.5)`
+ - Min spacing between cap2m and via3
+ -
+ - 0.2
+ - µm
+ * - :drc_rule:`(cap2m.6)`
+ - Maximum Aspect Ratio (Length/Width)
+ -
+ - 20
+ -
+ * - :drc_rule:`(cap2m.7)`
+ - Only rectangular or L-shaped capacitors allowed
+ -
+ -
+ -
+ * - :drc_rule:`(cap2m.8)`
+ - Min space, no overlap, between via3 and cap2m
+ -
+ - 0.14
+ - µm
+ * - :drc_rule:`(cap2m.11)`
+ - Min spacing between cap2m to (met3 not overlapping cap2m)
+ -
+ - 0.5
+ - µm
+
+
+
:drc_rule:`(vpp.-)`
-------------------
diff --git a/docs/rules/periphery/p018-x_dotdash.csv b/docs/rules/periphery/p018-x_dotdash.csv
index 12da3ec28..f5e2e8511 100644
--- a/docs/rules/periphery/p018-x_dotdash.csv
+++ b/docs/rules/periphery/p018-x_dotdash.csv
@@ -1,5 +1,5 @@
Name,Description,Flags,Value,Unit
-(x.1a),"p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2 must be on a grid of mm",,0.001,mm
+(x.1a),"p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2, capm and cap2m must be on a grid of mm",,0.001,mm
(x.1b),Data for SKY130 layout and mask on all layers except those mentioned in 1a must be on a grid of mm (except inside Seal ring),,0.005,mm
(x.2),Angles permitted on: diff,,N/A,N/A
(x.2),"Angles permitted on: diff except for:
diff --git a/docs/rules/periphery/p036-cap2m_dotdash.csv b/docs/rules/periphery/p036-cap2m_dotdash.csv
new file mode 100644
index 000000000..e2c89d0d9
--- /dev/null
+++ b/docs/rules/periphery/p036-cap2m_dotdash.csv
@@ -0,0 +1,11 @@
+Name,Description,Flags,Value,Unit
+(cap2m.1),Min width of cap2m,,1,µm
+(cap2m.2a),Min spacing of cap2m to cap2m,,0.84,µm
+(cap2m.2b),Minimum spacing of capacitor bottom_plate to bottom plate,,1.2,µm
+(cap2m.3),Minimum enclosure of cap2m (top_plate) by met4,,0.14,µm
+(cap2m.4),Min enclosure of via4 by cap2m,,0.2,µm
+(cap2m.5),Min spacing between cap2m and via3,,0.2,µm
+(cap2m.6),Maximum Aspect Ratio (Length/Width),,20,
+(cap2m.7),Only rectangular or L-shaped capacitors allowed,,,
+(cap2m.8),"Min space, no overlap, between via3 and cap2m",,0.14,µm
+(cap2m.11),Min spacing between cap2m to (met3 not overlapping cap2m),,0.5,µm
diff --git a/docs/rules/periphery/p036-capm_dotdash.csv b/docs/rules/periphery/p036-capm_dotdash.csv
index 257db86b5..cf84be604 100644
--- a/docs/rules/periphery/p036-capm_dotdash.csv
+++ b/docs/rules/periphery/p036-capm_dotdash.csv
@@ -3,11 +3,9 @@ Name,Description,Flags,Value,Unit
(capm.2a),Min spacing of capm to capm,,0.84,µm
(capm.2b),Minimum spacing of capacitor bottom_plate to bottom plate,,1.2,µm
(capm.3),Minimum enclosure of capm (top_plate) by met3,,0.14,µm
-(capm.4),Min enclosure of via3 by capm,,0.2,µm
+(capm.4),Min enclosure of via3 by capm,,0.14,µm
(capm.5),Min spacing between capm and via3,,0.14,µm
-(capm.6),Maximum Aspect Ratio (Length/Width),,,
-(capm.7),Only rectangular capacitors are allowed,,,
-(capm.8),"Min space, no overlap, between via3 and capm",,0.14,µm
-(capm.10),"capm must not straddle nwell, diff, tap, poly, li1 and met1 (Rule exempted for capm overlapping capm_2t.dg)",TC,,
+(capm.6),Maximum Aspect Ratio (Length/Width),,20,
+(capm.7),Only rectangular or L-shaped capacitors allowed,,,
+(capm.8),"Min space, no overlap, between via2 and capm",,0.14,µm
(capm.11),Min spacing between capm to (met3 not overlapping capm),,0.5,µm
-(capm.12),Max area of capm,,,µm²
diff --git a/docs/rules/periphery/periphery-split-csv.py b/docs/rules/periphery/periphery-split-csv.py
index 9e632d4dc..19db4740d 100755
--- a/docs/rules/periphery/periphery-split-csv.py
+++ b/docs/rules/periphery/periphery-split-csv.py
@@ -91,6 +91,7 @@ def csv_fname(self):
no_pics = [
'p024-hvtr_dotdash.svg',
'p033-licon_dotdash.svg',
+ 'p036-cap2m_dotdash.svg',
'p042-via3_dotdash.svg',
'p043-nsm_dotdash.svg',
'p044-m5_dotdash.svg',
diff --git a/docs/rules/periphery/periphery.csv b/docs/rules/periphery/periphery.csv
index 32234f11b..1b5b83093 100644
--- a/docs/rules/periphery/periphery.csv
+++ b/docs/rules/periphery/periphery.csv
@@ -5,7 +5,7 @@ Rule,Section G2: Design Rules for SKY130*,Use,
, ,,
(x.-),General,,
,,,
-1a,"p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2 must be on a grid of mm",,0.001,mm
+1a,"p1m.md (OPC), DECA and AMKOR layers (pi1.dg, pmm.dg, rdl.dg, pi2.dg, ubm.dg, bump.dg) and mask data for p1m, met1, via, met2, capm and cap2m must be on a grid of mm",,0.001,mm
1b,Data for SKY130 layout and mask on all layers except those mentioned in 1a must be on a grid of mm (except inside Seal ring),,0.005,mm
2,Angles permitted on: diff,,N/A,N/A
,"Angles permitted on: diff except for:\n- diff inside ""advSeal_6µm* OR cuPillarAdvSeal_6µm*"" pcell, \n- diff rings around the die at min total L>1000 µm and W=0.3 µm",,n x 90,deg
@@ -742,18 +742,39 @@ irdrop.3,"For n > 100 contacts on the same connector, mcon area pre- and post- C
(capm.-),MIM Capacitor (Capm),,sky130
,Function: Defines MIM capacitor,,
,,,
-1,Min width of capm,,N/A,N/A
-2a,Min spacing of capm to capm,,N/A,N/A
-2b,Minimum spacing of capacitor bottom_plate to bottom plate,,N/A,N/A
-3,Minimum enclosure of capm (top_plate) by met2,,N/A,N/A
-4,Min enclosure of via2 by capm,,N/A,N/A
-5,Min spacing between capm and via2,,N/A,N/A
-6,Maximum Aspect Ratio (Length/Width),,N/A,N/A
-7,Only rectangular capacitors are allowed,,N/A,N/A
-8,"Min space, no overlap, between via and capm",,N/A,N/A
-10,"capm must not straddle nwell, diff, tap, poly, li1 and met1 (Rule exempted for capm overlapping capm_2t.dg)",TC,N/A,N/A
-11,Min spacing between capm to (met2 not overlapping capm),,N/A,N/A
-12,Max area of capm (um^2),,N/A,N/A
+1,Min width of capm,,1,µm
+2a,Min spacing of capm to capm,,0.84,µm
+2b,Minimum spacing of capacitor bottom_plate to bottom plate,,1.2,µm
+3,Minimum enclosure of capm (top_plate) by met3,,0.14,µm
+4,Min enclosure of via3 by capm,,0.14,µm
+5,Min spacing between capm and via3,,0.14,µm
+6,Maximum Aspect Ratio (Length/Width),,20,
+7,Only rectangular or L-shaped capacitors allowed,,,
+8,"Min space, no overlap, between via2 and capm",,0.14,µm
+11,Min spacing between capm to (met3 not overlapping capm),,0.5,µm
+,,,
+,,,
+,,,
+,,,
+,,,
+,,,
+,,,
+,,,
+,,,
+,,,
+(cap2m.-),MIM Capacitor (Cap2m),,sky130
+,Function: Defines MIM capacitor,,
+,,,
+1,Min width of cap2m,,1,µm
+2a,Min spacing of cap2m to cap2m,,0.84,µm
+2b,Minimum spacing of capacitor bottom_plate to bottom plate,,1.2,µm
+3,Minimum enclosure of cap2m (top_plate) by met4,,0.14,µm
+4,Min enclosure of via4 by cap2m,,0.2,µm
+5,Min spacing between cap2m and via3,,0.2,µm
+6,Maximum Aspect Ratio (Length/Width),,20,
+7,Only rectangular or L-shaped capacitors allowed,,,
+8,"Min space, no overlap, between via3 and cap2m",,0.14,µm
+11,Min spacing between cap2m to (met3 not overlapping cap2m),,0.5,µm
,,,
,,,
,,,