• TCAD Examples

aniiex16.in : Use of C-Interpreter for Control of Damage Models.

Requires: SSuprem 4
Minimum Versions: Athena 5.22.3.R

This example shows how C-Interpreter can be used for control of PLUS.ONE (or UNIT.DAMAGE) and <311> Cluster formation models. Both models estimate distributions of point defect and <311> clusters by scaling implant profile using factors DAM.F and CLUSTER.F, correspondingly. Also, in the case of <311>, the user specifies the concentration limits within which the clusters can be formed.

These methods of damage model control are very limited and sometimes could not represent physical reality. For example, it is observed that clusters are not formed near silicon surface, but it cannot be specified within model limitations.

The first part of this example, and corresponding Figure on the left, shows that two <311> cluster bands are formed. This situation is even more pronounced in 2D since the <311> cluster band could propagate laterally and end up at the surface. This means that if the model is applied to S/D or LDD implant of a MOS device, the <311> would "appear" under the gate which is incorrect.

Use of C-interpreter allows us to modify the models. In this case the C-interpreter file aniiex16.lib allows the cluster to be formed only at depths > 0.15 microns. Also, C-interpreter allows us to modify the PLUS.ONE model. In this example, C-interpreter specifies that the PLUS.ONE model is to be applied to concentrations only above level of 3e15 /cm^3.

The C-interpreter file is specified by the DAM.MOD parameter in the IMPLANT statement.

To load and run this example, select the Load button in DeckBuild > Examples. This will copy the input file and any support files to your current working directory. Select the Run button in DeckBuild to execute the example.

Input Files
Output Results
These examples are for reference only. Every software package contains a full set of examples suitable for that version and are installed with the software. If you see examples here that are not in your installation you should consider updating to a later version of the software.
Copyright © 1984 - Silvaco, Inc. All Rights Reserved. | Privacy Policy