IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第87页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • Power/Ground plane setback meets the procurement documenta- tion requirements. • 电 源 层 /接地 层 到 隔 离孔 的 余 隙 符合采 购 文件的要求。 Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • A) Powe…

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Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
3.1.2 Registration/Conductor to Holes(导体与孔的重合度)
Registration of conductors is typically determined with respect to PTH lands. Requirements are established through minimum internal annu-
lar ring (see 3.3.1).
体与通常是对于孔焊测定的。其要求是通过最层环宽来确定的(见3.3.1节)
311d
311e
3.1 DIELECTRIC MATERIALS质材料)
3.1.1 Laminate Voids/Cracks (Outside Thermal Zone) (cont.)(层板空洞/裂(受热区外)(续)
78 IPC-A-600H-201020104
Visual observations made on cross-sections only.对显微切片进行目检观察。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Power/Ground plane setback meets the procurement documenta-
tion requirements.
/接地离孔符合采文件的要求。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
A) Power/ground plane setback is greater than the minimum elec-
trical conductor spacing specified on the procurement documen-
tation.
B) Ground plane may extend to the edge of an unsupported hole
when specified in the procurement documentation.
•A/接地离孔大于采文件规定的最
小导间距
•B)当采文件有规定时,接地可以非支
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
313a
313b
A
B
313c
3.1 DIELECTRIC MATERIALS质材料)
3.1.3 Clearance Hole, Unsupported, to Power/Ground Planes(电层/接层上的⾮⽀撑孔,隔离孔)
79IPC-A-600H-2010 20104
Visual observations made on cross-sections only.对显微切片进行目检观察。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No delamination or blistering.
或起泡。
Acceptable - Class 2,3(可接受条件 - 2,3级)
No evidence of delamination or blistering.
没有分或起泡象。
Acceptable - Class 1(可接受条件 - 1级)
If delamination or blistering is present, evaluate the entire printed
board in accordance with 2.3.3.
如出现分或起泡,2.3.3节的要求评定整个印制板。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
314a
314b
314c
3.1 DIELECTRIC MATERIALS质材料)
3.1.4 Delamination/Blister(分层/起泡)
80 IPC-A-600H-201020104
Visual observations made on cross-sections only.对显微切片进行目检观察。