Printed Circuit Board Words

01、基准尺寸：reference dimension
02、参考尺寸：reaerence dimension
03、直接量定尺寸：direct dimensioning
04、基准图：datum feature
05、基准边：reference edge
06、导线设计距离：design space of conductor
07、导线设计宽度：design width of conductor
08、中心距：center to center spacing
09、线宽/间距：conductor width/space
10、节距：pitch
11、精细节距：fine pitch
12、层：layer
13、层间距：layer-to-layer spacing
14、边距：edge spacing
15、外形线：trim line
16、截面积：crossection area
17、真实值表测量：truth table test
18、准确位置：true position tolerance
19、精确位置：accuracy
20、精确位置误差：cumulative tolerance
21、精确度：accuracy
22、累积误差：cumulative tolerance
23、焊垫：footprint
24、外层：external layer
25、内层：internal layer
26、接地层：ground plane
27、接地层隔离：ground plane clearance
28、电压层：voltage plane
29、电源层隔离：voltage plane clearance
30、电源层：power plane, bus plane
21、导通网络：basic grid
22、导通网格：track grid
23、导通孔网格：via grid
24、连通盘网格：pad (land) grid
25、定位偏差：positional tolerance
26、对准靶标：bornb sight
27、梳状图形：comb pattern
28、对准标记：register mark
29、散热层：heat sink plane
30、端接:termination
Sophie Deng
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Wonderful PCB Limited
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Welcome to our trading shows:
1.Booth: L32,Expo Electronic 2013,Apr.10-12th in CROCUS EXPO,Moscow,Russia
2.Booth: 11J36, HK Global sources  Apr.12-15th, 2013 Asia World-Expo, Hong Kong
3.Booth: 9J35, HK Global sources Oct.12-15th,2013 Asia World-Expo, Hong Kong
4.Booth: 70206, CES  2014  Jan,8th-11th in Las Vegas, USA