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base repository: azonenberg/starshipraider
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  • 1 commit
  • 6 files changed
  • 1 contributor

Commits on Jun 26, 2020

  1. Continued stackup design

    azonenberg committed Jun 26, 2020
    Copy the full SHA
    3c7b626 View commit details
10 changes: 5 additions & 5 deletions boards/MAXWELL/maxwell-main/output/fab-notes.txt
Original file line number Diff line number Diff line change
@@ -16,7 +16,7 @@ Impedances

Layer 1 coplanar waveguide (ref to layer 1 and 2 ground, no soldermask).
Layer 8 coplanar waveguide (ref to layer 8 and 7 ground, no soldermask).
xx μm trace = 50 ohm
180 μm trace / 100 μm trace = 50 ohm

Layer 1 microstrip (ref to layer 2 ground).
Layer 8 microstrip (ref to layer 7 ground).
@@ -25,8 +25,8 @@ Impedances

Layer 1 differential microstrip (ref to layer 2 ground).
Layer 8 differential microstrip (ref to layer 7 ground).
150 μm trace / 100 μm space = 100 ohm
240 μm trace / 100 μm space = 80 ohm
110 μm trace / 100 μm space = 100 ohm
190 μm trace / 100 μm space = 80 ohm

Layer 3 stripline (ref to layer 2 ground).
Layer 6 stripline (ref to layer 7 ground).
@@ -35,8 +35,8 @@ Impedances

Layer 3 differential stripline (ref to layer 2 ground).
Layer 6 differential stripline (ref to layer 7 ground).
120 μm trace / 100 μm space = 100 ohm
180 μm trace / 100 μm space = 80 ohm
100 μm trace / 200 μm space = 100 ohm
130 μm trace / 100 μm space = 80 ohm

Suggested stackup
1 35 μm (1 oz) copper Signal
10 changes: 5 additions & 5 deletions sims/MAXWELL/100-ohm-differential-microstrip-with-soldermask.son
Original file line number Diff line number Diff line change
@@ -2,11 +2,11 @@ FTYP SONPROJ 17 ! Sonnet Project File
VER 17.52.2
HEADER
LIC antikernel2.1.48685 90e2ba8817c0 havequick azonenberg
DAT 06/25/2020 11:12:46
DAT 06/25/2020 12:55:42
BUILT_BY_CREATED xgeom 16.56 07/03/2018 15:05:41
BUILT_BY_SAVED sonnet 17.52.2
MDATE 06/25/2020 11:09:40
HDATE 06/25/2020 11:09:40
MDATE 06/25/2020 12:55:35
HDATE 06/25/2020 12:55:35
END HEADER
DIM
ANG DEG
@@ -26,8 +26,8 @@ Q_ACC N
END CONTROL
GEO
TMET "Free Space" 0 FREESPACE 376.7303136 0 0 0
BMET "Copper 1oz" 1 NOR 58000000 0.5 35
MET "Copper 1oz" 1 NOR 58000000 0.5 35
BMET "Lossless" 0 SUP 0 0 0 0
MET "Copper 1oz thick" 1 TMM 58000000 0.5 0.035 2
BRI "Alumina (96%)" 0 9.4 0.0004 0
BRI "Alumina (99.5%)" 0 9.9 0.0001 0
BRI "Aluminum Nitride" 0 8.6 0.0003 0
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