IPC-TM-650 EN 2022 试验方法1.pdf - 第106页

S-Filter: Lo w ma g lens , larger beam spot, high S-filter val ue High mag lens, smal ler b eam spot, low S-filter val ue Vs . Page 3 of 5

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S-Filter:
Low mag lens, larger beam spot, high
S-filter value
High mag lens, smaller beam spot, low
S-filter value
Vs.
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Figure 5 Planarity Chart for Method.xls
6.4
3.2
1.60.8
0.40.2
0.1
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
Trace Width (mm)
Planarity Test Method - Sample A
Profilometer Method A
% Planarity
X-Section Method A
IPC-TM-650
Number
Subject Date
Revision
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