IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第45页

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 超 出上述要求。 图 256d 2.5 HOLES – PLA TED-THROUGH – GENERAL (镀覆孔 – 通则) 2.5.6 Cap Plating of Filled Holes – (Visual) (…

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Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Copper surface is planar with no indication of cap plating.
表面盖覆电镀象。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
When cap plating of the filled via is specified on the procurement
documentation, the requirements of 2.7.1.1 and the requirements
of the applicable performance specification for rectangular and
round surface mount pads shall apply.
No plating voids exposing the resin fill area, unless covered by
solder mask.
Visually discernable protrusions (bumps) and/or depressions
(dimples) that meet the microsection requirements of the appli-
cable performance specification.
当采文件中规定盖覆电镀时,表面
应当采用2.7.1.1节的要求和适用的性能规范要求。
非被覆盖,否则不能有树脂填区域的镀层
洞。
目视可陷()和起(凸块足适用的性能
规范中显微切片的要求。
256a
256b
256c
2.5 HOLES – PLATED-THROUGH – GENERAL(镀覆孔 通则)
2.5.6 Cap Plating of Filled Holes – (Visual)(填塞孔的盖覆电镀 (⽬检)
36 IPC-A-600H-201020104
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。
256d
2.5 HOLES – PLATED-THROUGH – GENERAL(镀覆孔 通则)
2.5.6 Cap Plating of Filled Holes – (Visual) (cont.)(填塞孔的盖覆电镀 (⽬检)(续)
37IPC-A-600H-2010 20104
Haloing: Mechanically induced fracturing or delamination on or below the surface of the base material; a light area around the holes, other
machined areas or both are usually indications of haloing. See also 2.1.3.
晕圈:由于加工引起的基材表面上或表面下的或分现象通常表现为在或其它加工的部区域,
或两处在。2.1.3节。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No haloing.
无晕圈
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Distance between the haloing penetration and the nearest conduc-
tive feature is not less than the minimum lateral conductor spac-
ing, or 100 µm [3,937 µin] if not specified.
晕圈 与最近导电距离于最向导
,如规定,则不100µm[3,937µin]
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。
261a
261b
261c
2.6 HOLES – UNSUPPORTED(⾮⽀撑孔)
2.6.1 Haloing(晕圈)
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