Version Update and Enhancements

The 1.50 version of HiSIM_SOI includes the following changes:

Two new body network nodes, db, and sb, are added when the values of the parameters COBCNODE and CORBNT are set to 1.
The node nqs_qhs is introduced in the Body-Tie-Model. The values of COISUB and COFBE parameters must be set to 1 and 2, respectively, to activate the QHS model.
COISUBFB parameter is introduced to switch Isub for calculation in FB mode: 0 with analytical Ids; 1 with iterative Ids.
COSUBSCALE parameter is introduced to switch scaling for calculation in the Isub model and Qhs model.
The new branches, sbbp, sbbc, dbbp, and dbbc, are added to the body resistance network, and sbsp and dbdp are added to the junction diode.
GIDLVB parameters are introduced in the Igidl calculation.
New parameters DVGPSUB and DVBSSUB are introduced in the Isub calculation.
New parameters SLGL and SLGLP are introduced for substrate current dependence in the Isub local calculation.

The 1.40 version of HiSIM_SOI includes the following changes:

Channel length offset parameter for capacitance (XLDC) is introduced.
Pocket impurity concentration NSUBP will be forcefully set to NSUBS when NSUBP is less than NSUBS. This takes into effect when VERSION > 1.30. (Default: 1.40).
Pb2 refers to Nsub, SOI impurity concentration with various effects included, such as pocket implantation and STI-induced variation, when VERSION > 1.30 (default: 1.40). When VERSION is less than or equal to 1.30, it refers to NSUBS.
L-scaling function for SOI impurity concentration is introduced. New model parameters: NSUBCL, NSUBCLP.
SOI resistance model is introduced. New model flag: CORBULK. New model parameters: RBULK0, RBULKW. New OP variable: Rbulk.
Deep punchthrough current model is introduced. New model flags: COPT, COPSPT. New model parameters: XJPT, NJUNC, MUPT, VFBPT, PSLIMPT. To activate this model, set COPT=1 and MUPT > 0.0. Previous punchthrough current model continues to exist in the new name “shallow (surface) punchthrough”. To activate this, set COPT=1 and PTL > 0.0.

The 1.30 version of HiSIM_HV includes the following changes:

Changed Model Descriptions:
- The source codes of floating-body and body-tie were unified by using $port_connected. A new flag is introduced for model selection
  COBCNODE = 0: Floating Body model (default)
  = 1: Body Tie model
Code Improvement: ddx() functions were removed from prev calculation

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