IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第130页

Acceptable - Class 1 (可接受条件 - 1级) • Buried vias completely void of fill material. • 埋 导 通 孔 中 完全 没有 填 塞 材料。 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…

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Blind via holes should be filled or plugged with a polymer or solder mask to prevent solder from entering them as solder in the small holes
tends to decrease reliability. Incomplete via fill may result in printed board delamination due to the rapid expansion of entrapped air pockets
or flux contaminants during solder reflow processes. Requirements for buried via fill are listed below.
应该用焊剂充或以防止料进,因为小孔内有料容低可靠性。孔未填满时,在再过程
中,夹带的空助焊剂污染物会膨胀而导致印制板分要求如下:
Target - Class 1,2,3(⽬标条件 - 1,2,3级)
Complete fill of blind or buried via with laminating resin or similar fill
material.
/孔完全填满压树脂或类材料。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
At least 60% buried via fill with laminating resin or similar fill material.
压树脂或类充材料至少60%
Acceptable - Class 2,3(可接受条件 - 2,3级)
At least 60% fill for blind vias with an aspect ratio greater than 1:1 or as
specified in the procurement documentation.
厚径比大于1 : 1 孔至少被60%或符合采文件规
定。
Note: Through hole fill requirements are AABUS.
注: 要求由供需双方协商确定。
3316a
3316b
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.16 Material Fill of Blind and Buried Vias/导通孔的材料填塞)
121IPC-A-600H-2010 20104
Visual observations made on cross-sections only.对显微切片进行目检观察。
Acceptable - Class 1(可接受条件 - 1级)
Buried vias completely void of fill material.
完全没有材料。
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。
Note: Through hole fill requirements are AABUS.
注:
要求由供需双方协商确定。
3316c
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.16 Material Fill of Blind and Buried Vias (cont.)/导通孔的材料填塞(续)
Visual observations made on cross-sections only.对显微切片进行目检观察。
122 IPC-A-600H-201020104
When copper cap plating of filled holes is specified by the master drawing the following shall apply.
图规定用盖覆电镀时,应当采用以下要求。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Copper surface is planar with no protrusion (bump) and/or depression
(dimple)
表面无凸起(凸块)和陷(
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Separation of copper cap to fill material.
No separation of the cap plating to underlying plating.
Cap protrusion (bump) and/or depression (dimple) meets the dimen-
sional requirements in IPC-6012.
Fill material within the blind via shall be planar with the surface within
± 0.076 mm [0.003 in] unless otherwise specified.
When cap plating is specified, fill material within the blind via shall
meet the dimple/bump requirements of IPC-6012.
No voids in the cap plating over the resin fill.
允许铜盖覆材料的分
盖覆镀层层镀层没有分
盖覆的起(凸块)和陷(IPC-6012中的尺寸要求。
有规定,内的材料与表面的整度应当在
+/-0.076mm[0.003in]以内。
当规定盖覆电镀时,内的材料应当IPC-6012中的
陷和起要求。
树脂上的盖覆镀层空洞。
3317b
3317a
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.17 Cap Plating of Filled Holes(填塞孔的盖覆电镀)
Visual observations made on cross-sections only.对显微切片进行目检观察。
123IPC-A-600H-2010 20104