boundaryEOLBlockage

spacings( 
( boundaryEOLBlockage tx_Layer 
 'offset g_offset
 {'horizontal | 'vertical | 'any}
 ['prl g_parallelRunLength 'within g_within 'distance g_distance]
 g_size
)

) ;spacings

(Virtuoso Advanced Node for Layout Only) Specifies the size and direction of end-of-line blockages from design boundary edges.

Wires starting in the design interior and ending with an end-of-line edge in the blockage violate the constraint. On the other hand, wires with no end-of-line edge in the blockage or those that start in the periphery but end in the blockage do not violate the constraint.

Values

tx_layer	The layer on which the constraint is applied. Type: String (layer and purpose names) or Integer (layer number)
g_size	The size of the blockages.

Parameters

'offset g_offset	End-of-line blockages start from the specified offset from the design boundary.
'horizontal | 'vertical | 'any
	End-of-line blockages are formed along design boundary edges in the specified direction.
'prl g_parallelRunLength 'within g_within 'distance g_distance
	(Virtuoso Layout Suite EXL and higher tiers) A search window is formed by extending the given g_parallelRunLength value at ends-of-lines on both sides and the g_within value in the orthogonal direction, unless neighbor wires on both sides of an end-of-line are less than the given g_distance value.

Examples

• Example 1: boundaryEOLBlockage with direction
• Example2: boundaryEOLBlockage with prl

Example 1: boundaryEOLBlockage with direction

For the Metal1 layer, the size of end-of-line blockages formed in the horizontal direction from the design boundary edges is 0.08.

Example2: boundaryEOLBlockage with prl

For the Metal1 layer, the size of end-of-line blockages formed in the horizontal direction from the design boundary edges is 0.08. The search window is formed by extending the parallel run length by 0.05 on both sides and by 0.03 in the orthogonal direction, unless neighbor wires on both sides of the ends-of-lines are within 0.04.

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