Resistor Devices
================

rhigh
-----

**Device Information**

.. list-table:: Polysilicon Resistor of a High Sheet Resistance
   :header-rows: 1
   :stub-columns: 1

   * - Property
     - Value
   * - Description
     - High-ohmic poly-Si resistor.
   * - Device Recognition
     - GatPoly, nSD, pSD, SalBlock, ExtBlock, PolyRes
   * - Model Name
     - res_rhigh
   * - Layout Cell Name
     - sg13g2_pr - rhigh
   * - Parameters
     - w, l, m, ps, b, R
   * - Netlist Syntax
     - `R0 net1 net2 res_rhigh w=0.5u l=1.2u ps=0.18u b=2 m=1`
   * - Additional Notes
     - It represents an unsalicided partial compensated low n-doped GatPoly resistor.
   * -
     - Resistor body is defined by SalBlock drawing layer. 
   * -
     - Sheet resistance of 1360 Ω/sq.
   * -
     - nSD only within Rhigh resistor device (pSD and nSD are identical).

**Parameters Information**

.. list-table:: Schematic and LVS views Compatibility for rhigh Parameters
   :header-rows: 1
   :stub-columns: 1

   * - Parameter
     - Description
     - Schematic-View
     - LVS-View
     - LVS-Comparison
   * - W
     - PolyRes Width
     - ✅
     - ✅
     - ✅
   * - L
     - PolyRes Length
     - ✅
     - ✅
     - ✅
   * - m
     - Number of resistors (multiplicity)
     - ✅
     - ✅
     - ✅
   * - ps
     - poly space between bends
     - ❌
     - ✅
     - ✅
   * - b
     - Number of bends
     - ❌
     - ✅
     - ✅
   * - R
     - Resistance Value
     - ✅
     - ❌
     - ❌

**Layout Information** (Refer to :ref:`layout layers`)

.. image:: images/rhigh_layout.png
    :width: 200
    :align: center
    :alt: rhigh device - layout

.. rst-class:: center

    Figure 4.5.1 Layout for rhigh resistor device


rppd
----

**Device Information**

.. list-table:: Polysilicon Resistor
   :header-rows: 1
   :stub-columns: 1

   * - Property
     - Value
   * - Description
     - Medium resistance poly-Si resistor.
   * - Device Recognition
     - GatPoly, pSD, SalBlock, ExtBlock, PolyRes
   * - Model Name
     - res_rppd
   * - Layout Cell Name
     - sg13g2_pr - rppd
   * - Parameters
     - w, l, m, ps, b, R
   * - Netlist Syntax
     - `R0 net1 net2 res_rppd w=0.5u l=1.2u ps=0.18u b=2 m=1`
   * - Additional Notes
     - It represents the unsalicided p+ doped GatPoly resistor.
   * -
     - Resistor body is defined by SalBlock drawing layer. 
   * -
     - Sheet resistance of 260 Ω/sq.

**Parameters Information**

.. list-table:: Schematic and LVS views Compatibility for rppd Parameters
   :header-rows: 1
   :stub-columns: 1

   * - Parameter
     - Description
     - Schematic-View
     - LVS-View
     - LVS-Comparison
   * - W
     - PolyRes Width
     - ✅
     - ✅
     - ✅
   * - L
     - PolyRes Length
     - ✅
     - ✅
     - ✅
   * - m
     - Number of resistors (multiplicity)
     - ✅
     - ✅
     - ✅
   * - ps
     - Poly space between bends
     - ❌
     - ✅
     - ✅
   * - b
     - Number of bends
     - ❌
     - ✅
     - ✅
   * - R
     - Resistance Value
     - ✅
     - ❌
     - ❌

**Layout Information** (Refer to :ref:`layout layers`)

.. image:: images/rppd_layout.png
    :width: 200
    :align: center
    :alt: rppd device - layout

.. rst-class:: center

    Figure 4.5.2 Layout for rppd resistor device


rsil
----

**Device Information**

.. list-table:: Silicide Resistor
   :header-rows: 1
   :stub-columns: 1

   * - Property
     - Value
   * - Description
     - Salicided poly-Si resistor (low-ohmic).
   * - Device Recognition
     - GGatPoly, RES, ExtBlock, PolyRes
   * - Model Name
     - res_rsil
   * - Layout Cell Name
     - sg13g2_pr - rsil
   * - Parameters
     - w, l, m, ps, b, R
   * - Netlist Syntax
     - `R0 net1 net2 res_rsil w=0.5u l=1.2u ps=0.18u b=2 m=1`
   * - Additional Notes
     - It represents the salicided n+ doped GatPoly resistor.
   * -
     - Resistor body is defined by SalBlock drawing layer. 
   * -
     - Sheet resistance of 7 Ω/sq.

**Parameters Information**

.. list-table:: Schematic and LVS views Compatibility for rsil Parameters
   :header-rows: 1
   :stub-columns: 1

   * - Parameter
     - Description
     - Schematic-View
     - LVS-View
     - LVS-Comparison
   * - W
     - PolyRes Width
     - ✅
     - ✅
     - ✅
   * - L
     - PolyRes Length
     - ✅
     - ✅
     - ✅
   * - m
     - Number of resistors (multiplicity)
     - ✅
     - ✅
     - ✅
   * - ps
     - Poly space between bends
     - ❌
     - ✅
     - ✅
   * - b
     - Number of bends
     - ❌
     - ✅
     - ✅
   * - R
     - Resistance Value
     - ✅
     - ❌
     - ❌

**Layout Information** (Refer to :ref:`layout layers`)

.. image:: images/rsil_layout.png
    :width: 200
    :align: center
    :alt: rsil device - layout

.. rst-class:: center

    Figure 4.5.3 Layout for rsil resistor device


lvsres
------

**Device Information**

.. list-table:: Metal Resistor
   :header-rows: 1
   :stub-columns: 1

   * - Property
     - Value
   * - Description
     - Metal resistor used for LVS purpose.
   * - Device Recognition
     - Metal1, Metal1.res
   * - Model Name
     - lvsres
   * - Layout Cell Name
     - sg13g2_pr - lvsres
   * - Parameters
     - w, l, R

**Parameters Information**

.. list-table:: Schematic and LVS views Compatibility for lvsres Parameters
   :header-rows: 1
   :stub-columns: 1

   * - Parameter
     - Description
     - Schematic-View
     - LVS-View
     - LVS-Comparison
   * - W
     - RES Width
     - ❌
     - ✅
     - ✅
   * - L
     - RES Length
     - ❌
     - ✅
     - ✅
   * - R
     - Resistance Value
     - ❌
     - ❌
     - ❌

**Layout Information** (Refer to :ref:`layout layers`)

.. image:: images/lvsres_layout.png
    :width: 150
    :align: center
    :alt: lvsres device - layout

.. rst-class:: center

    Figure 4.5.4 Layout for lvsres resistor device