Add a layer parameter

laurent_c

In a DRC-LVS file, I need to define the height/bottom/top for several layers, I tried to define those parameters for each layers with a default of 1.um, but I probably missed a simple definition :

POLY  = polygons(66, 20)

# Define a new custom function that defines the height Z of the layer
class DRC::DRCLayer
  def z_height()
    z_height = 1.um
  end
end 
# Define a new custom function that defines the bottom Z of the layer
class DRC::DRCLayer
  def z_bot()
    z_bot = 1.um
  end
end 
# Define a new custom function that defines the top Z of the layer
class DRC::DRCLayer
  def z_top()
    z_top = 1.um
  end
end 

POLY.z_height = 250.nm
POLY.z_bot = 5.nm
POLY.z_top = POLY.z_bot + POLY.z_height

Can you help me to define those 3 layer parameters ?

Thanks, Regards,

Laurent

sekigawa

I've not fully digested what you want to do.
However, I hope the sample below is close to it.

Code

#----------------------------------------------------------------
# Ref: https://www.klayout.de/forum/discussion/2539/
# Sub: Add a layer parameter
# Posted by: laurent_c
#
# File: F2539.drc
# Author: Kazzz-S
# Last modified: 2024-07-02
#----------------------------------------------------------------

##
## @brief   This class defines the Z dimensions of a set of layers.
##
class LayerZDic
  attr_reader :fabProcess, :mapLD, :dicZ

  def initialize(pname)
    # set the fab process name
    @fabProcess = pname

    # key="layer name"; val = [layer, data_type]
    @mapLD = {
      "layer1" => [1, 0],
      "layer2" => [2, 0],
      "layer3" => [3, 0]
    }

    # key="layer name"; val = [bot, height, top] values in [um]
  @dicZ = {
      "layer1" => [0.1, 0.1, 0.2],
      "layer2" => [0.2, 0.1, 0.3],
      "layer3" => [0.3, 0.1, 0.4]
  }
  end

  def AddData(layername, l, d, bot, height)
    @mapLD[layername] = [l, d]
    @dicZ[layername]  = [bot, height, bot+height]
  end

  def GetLD(layername)
    return @mapLD[layername]
  end

  def GetBot(layername)
    return @dicZ[layername][0]
  end

  def GetHeight(layername)
    return @dicZ[layername][1]
  end

  def GetTop(layername)
    return @dicZ[layername][2]
  end
end

# [1] Construct and populate an instance of class LayerZDic
myZdic = LayerZDic::new("laurent_c")
myZdic.AddData( "layer4", 4, 0, 0.4, 0.1 )
myZdic.AddData( "POLY", 66, 20, 0.005, 0.25 )

# [2] Retrieve the dictionary (hash)
puts "A1)    L/D of \"layer1\" = #{myZdic.GetLD("layer1")}"
puts "A2)    Bot of \"layer2\" = #{myZdic.GetBot("layer2")}"
puts "A3) Height of \"layer3\" = #{myZdic.GetHeight("layer3")}"
puts "A4)    Top of \"layer4\" = #{myZdic.GetTop("layer4")}"
puts ""
puts "B1)    L/D of \"POLY\" = #{myZdic.GetLD("POLY")}"
puts "B2)    Bot of \"POLY\" = #{myZdic.GetBot("POLY")}"
puts "B3) Height of \"POLY\" = #{myZdic.GetHeight("POLY")}"
puts "B4)    Top of \"POLY\" = #{myZdic.GetTop("POLY")}"
puts ""
puts "C1)    Fab. = #{myZdic.fabProcess}"
puts "C2)   LDMap = #{myZdic.mapLD}"
puts "C3) ZDimDic = #{myZdic.dicZ}"

---

Output

A1)    L/D of "layer1" = [1, 0]
A2)    Bot of "layer2" = 0.2
A3) Height of "layer3" = 0.1
A4)    Top of "layer4" = 0.5

B1)    L/D of "POLY" = [66, 20]
B2)    Bot of "POLY" = 0.005
B3) Height of "POLY" = 0.25
B4)    Top of "POLY" = 0.255

C1)    Fab. = laurent_c
C2)   LDMap = {"layer1"=>[1, 0], "layer2"=>[2, 0], "layer3"=>[3, 0], "layer4"=>[4, 0], "POLY"=>[66, 20]}
C3) ZDimDic = {"layer1"=>[0.1, 0.1, 0.2], "layer2"=>[0.2, 0.1, 0.3], "layer3"=>[0.3, 0.1, 0.4], "layer4"=>[0.4, 0.1, 0.5], "POLY"=>[0.005, 0.25, 0.255]}

laurent_c

Thank you Sekigawa for your very complete and very instructive method.
However, my goal is to extend the KLAYOUT DRC::DRCLayer class with 3 parameters, because I already used that class for other purpose.
Best regards,
Laurent

sekigawa

OK, then, how about this?

Code

#----------------------------------------------------------------
# Ref: https://www.klayout.de/forum/discussion/2539/
# Sub: Add a layer parameter
# Posted by: laurent_c
#
# File: F2539A.drc
# Author: Kazzz-S
# Last modified: 2024-07-03
#----------------------------------------------------------------

##
## @brief   To extend the DRC::DRCLayer class
##
class DRC::DRCLayer
  attr_accessor :z_bot, :z_height, :z_top

  def myInit()
    @z_bot = 1.um
    @z_height = 1.um
    @z_top = 1.um
  end
end

# [1] Get the polygons, then call myInit() against POLY
#       design data: klayout/testdata/lvs/ringo.gds (copying L/D=5/0 to 66/20) ===> ringo.oas
POLY = polygons(66, 20)
POLY.myInit()

# [2] Access the instance
puts "A1) Current Design Data File  = #{RBA::CellView::active.filename}"
puts "A2) Initial values:"
puts "      z_bot    = #{POLY.z_bot}"
puts "      z_height = #{POLY.z_height}"
puts "      z_top    = #{POLY.z_top}"
puts ""
POLY.z_height = 250.nm
POLY.z_bot = 5.nm
POLY.z_top = POLY.z_bot + POLY.z_height
puts "B1) Modified values:"
puts "      z_bot    = #{POLY.z_bot}"
puts "      z_height = #{POLY.z_height}"
puts "      z_top    = #{POLY.z_top}"
puts "B2) POLY contains #{POLY.count} polygons"
puts ""

---

Output

A1) Current Design Data File  = /home/sekigawa/GitWork/ForumKLayout/Forum/Forum2539/ringo.oas
A2) Initial values:
      z_bot    = 1.0
      z_height = 1.0
      z_top    = 1.0

B1) Modified values:
      z_bot    = 0.005
      z_height = 0.25
      z_top    = 0.255
B2) POLY contains 52 polygons

laurent_c

Thank you very much Sekigawa, it is exactly what I was looking for
I would have never found by myself the syntax of this macro : thank you for your help !
Regards,
Laurent