| * Copyright 2020 The SkyWater PDK Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * https://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| |
| * SKY130 Spice File. |
| .subckt sky130_fd_pr__model__parasitic__rf_diode_ps2nw c0 c1 |
| + |
| .param area = -1 perim = -1.0 |
| + |
| + ra1 = 7.6e+5 |
| + ra2 = 2000.0 |
| + rp1_diode = 3750.0 |
| + wl = {sqrt(0.0625*perim*perim-area)} |
| + wi = {perim/4+wl} |
| + le = {perim/4-wl} |
| rnwdiode_rf c0 a1 r = {(ra1/area+ra2/(le/wi+wi/le))*(9.8286e-01*2-sky130_fd_pr__model__parasitic__diode_ps2nw__ajunction_mult)} |
| rp c0 p1 r = {(rp1_diode/perim)*(9.8954e-01*2-sky130_fd_pr__model__parasitic__diode_ps2nw__pjunction_mult)} |
| da a1 c1 sky130_fd_pr__model__parasitic__diode_ps2nw_noresistor area = {area} |
| dp p1 c1 sky130_fd_pr__model__parasitic__diode_ps2nw_noresistor area = 1.0e-18 |
| .ends sky130_fd_pr__model__parasitic__rf_diode_ps2nw |
