luke
/
OpenRAM
mirror of https://github.com/VLSIDA/OpenRAM.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Initial update of new psdm/nsdm implants

This commit is contained in:
mrg 2022-02-02 09:36:05 -08:00
parent 2d2620d21a
commit 8fdd4966a7
1 changed files with 33 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
compiler/pgates/pgate.py
View File

@ -208,8 +208,9 @@ class pgate(design.design):
# from the top of the well # from the top of the well
# OR align the active with the top of PMOS active. # OR align the active with the top of PMOS active.
max_y_offset = self.height + 0.5 * self.m1_width max_y_offset = self.height + 0.5 * self.m1_width
contact_yoffset = min(pmos_pos.y + pmos.active_height - pmos.active_contact.first_layer_height, contact_yoffset = self.height - 0.5 * self.implant_width \
max_y_offset - pmos.active_contact.first_layer_height / 2 - self.nwell_enclose_active) - pmos.active_contact.first_layer_height \
- self.implant_enclose_active
contact_offset = vector(contact_xoffset, contact_yoffset) contact_offset = vector(contact_xoffset, contact_yoffset)
# Offset by half a contact in x and y # Offset by half a contact in x and y
contact_offset += vector(0.5 * pmos.active_contact.first_layer_width, contact_offset += vector(0.5 * pmos.active_contact.first_layer_width,
@ -276,24 +277,34 @@ class pgate(design.design):
rightx=rightx, rightx=rightx,
topy=self.height) topy=self.height)
try: self.add_rect(layer="pimplant",
ntap_insts = [self.nwell_contact] offset=vector(0, self.height - 0.5 * self.implant_width),
self.add_enclosure(ntap_insts, width=self.width,
layer="nimplant", height=self.implant_width)
extend=self.implant_enclose_active, self.add_rect(layer="nimplant",
rightx=self.width, offset=vector(0, -0.5 * self.implant_width),
topy=self.height) width=self.width,
except AttributeError: height=self.implant_width)
pass
try:
ptap_insts = [self.pwell_contact] # try:
self.add_enclosure(ptap_insts, # ntap_insts = [self.nwell_contact]
layer="pimplant", # self.add_enclosure(ntap_insts,
extend=self.implant_enclose_active, # layer="nimplant",
rightx=self.width, # extend=self.implant_enclose_active,
boty=0) # rightx=self.width,
except AttributeError: # topy=self.height)
pass # except AttributeError:
# pass
# try:
# ptap_insts = [self.pwell_contact]
# self.add_enclosure(ptap_insts,
# layer="pimplant",
# extend=self.implant_enclose_active,
# rightx=self.width,
# boty=0)
# except AttributeError:
# pass
def add_pwell_contact(self, nmos, nmos_pos): def add_pwell_contact(self, nmos, nmos_pos):
""" Add an pwell contact next to the given nmos device. """ """ Add an pwell contact next to the given nmos device. """
@ -303,11 +314,8 @@ class pgate(design.design):
# To the right a spacing away from the nmos right active edge # To the right a spacing away from the nmos right active edge
contact_xoffset = nmos_pos.x + nmos.active_width \ contact_xoffset = nmos_pos.x + nmos.active_width \
+ self.active_space + self.active_space
# Must be at least an well enclosure of active up # Allow an nimplant below it under the rail
# from the bottom of the well contact_yoffset = 0.5 * self.implant_width + self.implant_enclose_active
contact_yoffset = max(nmos_pos.y,
self.nwell_enclose_active \
- nmos.active_contact.first_layer_height / 2)
contact_offset = vector(contact_xoffset, contact_yoffset) contact_offset = vector(contact_xoffset, contact_yoffset)
# Offset by half a contact # Offset by half a contact