ERF Variable

Description

v_smd_row_pitch_range_to_replace  

When using an algorithm to replace the separate SM clearances of a row of SMD Pads with one big clearance, this ERF variable defines the minimum and maximum pitch (pitch = the distance between individual pads) of a row of SMD Pads that can be processed by this algorithm.

 

    v_smd_row_pitch_range_to_replace is composed of two values separated by a colon :.

 

        The first value defines min_pitch size (minimum pitch size).

        In order to disable this limit, this value should be set to -1. (minimum pitch size).

        The second value defines max_pitch size (maximum pitch size).

        In order to disable this limit, this value should be set to -1. (maximum pitch size)

 

There are four (4) possible combinations of values for this ERF variable.  

 

1) Define only a lower limit for the range of pitch values to be replaced. The variable will look like this x : -1. This means that all SMD rows with a pitch larger than x should be replaced with one large clearance.

 

2) Define only a maximum limit for the range of pitch values to be replaced The variable will look like this:

–1 : y. This means that all SMD rows with pitch smaller than y should be replaced with one large clearance.

 

3) Define both a minimum and maximum value for the range of pitch values to be replaced. The variable will look like this: x : y . This means that SMD rows with a pitch size between x and y should be replaced with one large clearance.

 

4) Disable the algorithm. The variable will look like this: –1 : -1 .