AP210 Board Outline Information

characterized_definition

shape_definition_representation

product_definition_shape

geometric_curve_set

property_definition_representation

shape_aspect

inter_stratum_feature

curve

bounded_curve

polyline

trimmed_curve

cartesian_point

geometric_set_select

shape_definition

trimming_select

geometrically_bounded_2d_

wireframe_shape_representation

REAL

definition

definition

used_representation

items[0]

elements

S[ 0 : ? ]

points

L[ 2 : ? ]

L[ 1 : 3 ]

coordinates

trim_2

trim_1

S[ 1 : 2 ]

S[ 1 : 2 ]

‘board outline’

‘PCB outline’

name

name

Board outline

coordinates

curve

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• Once the information requirements of the analysis modules are reflected in the APM, the next step is to design and implement the mappings that populate this APM with data coming from the four source files.

• To illustrate this mapping process I will describe how the outline of the board is mapped to the APM.

• The outline information is then used to calculate the total diagonal of the board; a product idealization required by the PWB Warpage Analysis Module.

• This slide is a partial EXPRESS schema showing how the outline information is represented in AP210.

• As you may realize (even with this relatively simple example), locating the required information is not a trivial task and requires a considerable amount of knowledge about the source schemas.