Packages - QFP

QFP enables you to create geometry and boundary conditions to represent a quad flat package.

Name	The Name appears in the Project Manager window, history tree, and 3D Modeler window.
Plane	Plane specifies the plane on which to create the package.
Location	Under Location, specify the starting coordinates for the package geometry relative to center of the 3D Modeler.
Local Origin	Under Local Origin, specify the coordinates to define the center from the Location of the package is offset. The default setting specifies the center of the 3D Modeler.
Size	Under Size, specify the length of the package in each coordinate direction. The coordinate direction represented by Thick depends on the selected Plane.
Model Specs	Under Model Specs, specify the Model Type as Detailed, Compact Conduction Model (CCM), Characterize JC, or Characterize JB and select a Symmetry.
Board Size	Under Board Size, when the Model Type is Characterize JB, specify the length of the board in each coordinate direction. The coordinate direction represented by Board Thickness depends on the selected Plane.

Mold	Under Mold, select the material for the mold.
Wire Bonds	Under Wire Bonds, specify the diameter, average length, and material of the of the wire bonds.

Die	Under Die, specify the length of the die in each coordinate direction. The coordinate direction represented by Height depends on the selected Plane. Also, specify the die power and material.
Die Paddle	Under Die Paddle, specify the length of the die paddle in each coordinate direction. The coordinate direction represented by Thickness depends on the selected Plane. Also, specify the die paddle material.
Die Attach	Under Die Attach, specify the thickness of the die attach material and the material.

Leads

Under Leads, specify the number of leads, the lead thickness and width, material, foot length, and airgap under the package.

Iron Python Script – QFP.py:

The following is the toolkit's scripting information.

scriptInput = ["ng"]

scriptInput.append("Name:QFP1")

scriptInput.append("Plane:XY")

scriptInput.append("length_unit:meter")

scriptInput.append("power_unit:W")

scriptInput.append("xS:-0.0075")

scriptInput.append("yS:-0.0075")

scriptInput.append("zS:-0.0075")

scriptInput.append("xO:0.0")

scriptInput.append("yO:0.0")

scriptInput.append("zO:0.0")

scriptInput.append("Len1:0.015")

scriptInput.append("Len2:0.015")

scriptInput.append("Thick:0.0016")

scriptInput.append("Type:Detailed")

scriptInput.append("boardLen1:0.0252")

scriptInput.append("boardLen2:0.0252")

scriptInput.append("boardThick:0.0016")

scriptInput.append("Symmetry:Full")

scriptInput.append("dieLen1:0.00856")

scriptInput.append("dieLen2:0.00856")

scriptInput.append("dieHeight:0.00035")

scriptInput.append("diePow:1.0")

scriptInput.append("padLen1:0.01")

scriptInput.append("padLen2:0.01")

scriptInput.append("padThick:0.0001")

scriptInput.append("attachThick:0.00005")

scriptInput.append("WireDiameter:0.000025")

scriptInput.append("WireLength:0.001")

scriptInput.append("NumberLeads:12")

scriptInput.append("LeadThick:0.0001")

scriptInput.append("LeadWidth:0.0002")

scriptInput.append("LeadFootLength:0.0002")

scriptInput.append("AirGap:0.0001")

scriptInput.append("attachMat:Epoxy Resin-Typical")

scriptInput.append("moldMat:Epoxy Resin-Typical")

scriptInput.append("dieMat:Si-Typical")

scriptInput.append("padMat:Si-Typical")

scriptInput.append("wireMat:Au-Typical")

scriptInput.append("leadMat:Cu-Pure")

oDesign.RunToolkit("SysLib", "Geometry/Packages/QFP", [])

oDesign.RunToolkit("SysLib", "Geometry/Packages/QFP", ["ng"])

oDesign.RunToolkit("SysLib", "Geometry/Packages/QFP", scriptInput)