IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第145页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • Plating is uniform and meets the minimum thickness require- ments. • No defects of the plating or base material present. • 镀层均匀 一 致且 满 足最 小 厚 度 要求。 • 镀层 或基材不 存 在缺陷。 Accep…

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In cases where anchoring spurs are attached to the lands, they shall be lapped by the coverlay.
上有盘趾时,覆盖应当盘趾覆盖。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Meets nominal registration.
足标要求。
Acceptable - Class 3(可接受条件 - 3级)
Coverlay or stiffener does not extend into the hole.
For supported holes, a solderable annular ring of 0.05 mm
[0.00197 in] or more for the full circumference.
For unsupported holes, a solderable annular ring of 0.25 mm
[0.00984 in].
覆盖强板没有至孔内。
对于 整个圆 上可焊孔环等于或大于0.05 mm
[0.00197in]
对于非支,焊孔环0.25mm[0.00984in]
Acceptable - Class 2(可接受条件 - 2级)
Coverlay or stiffener does not extend into the hole.
A solderable annular ring for 270° or more of the circumference.
覆盖强板没有至孔内。
上大于等于270°内有可焊孔环
Acceptable - Class 1(可接受条件 - 1级)
Coverlay or stiffener does not extend into the hole.
A solderable annular ring for 180° or more of the circumference.
覆盖强板没有至孔内。
上大于等于180°内有可焊孔环
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。
413a
413b
413c
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.3 Access Hole Registration for Coverlay and Stiffeners元器件孔与覆盖层及增强板的重合度)
136 IPC-A-600H-201020104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Plating is uniform and meets the minimum thickness require-
ments.
No defects of the plating or base material present.
镀层均匀致且足最要求。
镀层或基材不在缺陷。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Minor defects present but meet the minimum requirements:
a. Slight deformation of base material and minor smear.
b. Adhesive or dielectric filament with small nodule, but copper
thickness meets minimum requirements.
c. Localized thin and non-uniform plating; copper slightly thin
over one corner and minor extrusion of base material, but cop-
per thickness meets minimum requirements.
出现微缺陷,但足最要求:
a. 基材微变并有
b. ,但 足最
要求。
c.镀部偏和不均匀;其中一拐角铜层稍薄和基材
出现出,但足最要求。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria and/or the fol-
lowing:
d. Adhesive filament causing cracks in plating.
e. Nodules, extrusion and deformation of base material violate
minimum hole size requirements.
f. Plating violates the minimum thickness requirement.
g. Circumferential voids.
缺陷不符合或出上述要求。
d. 剂细成镀层裂
e. 基材的起和变反了最小孔要求
f.镀反了最要求
g. 出现状空洞。
414a
414b
414c
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.4 Plating Defects(镀层缺
137IPC-A-600H-2010 20104
The stiffener is evaluated for mechanical support only by way of the test method listed below.
通过下列测试方法对强板的进行评定。
Acceptable - Class 1,2,3 (Stiffener)(可接受条件 - 1,2,3级(增强板)
Mechanical support is required; void-free bonding is not required.
The stiffener does not reduce the solderable annular ring below the minimum solderable annular ring requirements.
Peel strength between the flexible printed board and the stiffener, when tested in accordance with the method below, is a minimum of 1.4kg
per 25 mm [0.984 in] width when bonded with thermoset adhesive and 0.38kg per 25 mm [0.984 in] width when bonded with pressure sen-
sitive adhesive.
要求,但不要求空洞接。
强板没有使可焊孔环宽度少至低于最小环宽要求。
性印制板和强板之,当下述方法测试时,使用时的最低为1.4kg/25mm[0.984in],使用
时的最低为0.38kg/25mm[0.984in]
Acceptable - Class 3 (Adhesive)(可接受条件 - 3级)接剂)
The adhesive used to bond the stiffener does not reduce the solderable annular ring below the minimum solderable annular ring require-
ments.
The total area of voids does not exceed 10% of the stiffener surface area.
Each void does not exceed 2.5 mm [0.0984 in] in the longest dimension.
用于强板的剂未使可焊孔环宽度少至低于最小环宽要求。
的空洞区域未超强板表面面10%
空洞的最长尺寸2.5mm[0.0984in]
Acceptable - Class 2 (Adhesive) (可接受条件 - 2级)接剂)
The adhesive used to bond the stiffener does not reduce the solderable annular ring below the minimum solderable annular ring require-
ments.
The total area of voids does not exceed 20% of the stiffener surface area.
Each void does not exceed 2.5 mm [0.0984 in] in the longest dimension.
用于强板的剂未使可焊孔环宽度少至低于最小环宽要求。
的空洞区域未超强板表面面20%
空洞的最长尺寸2.5mm[0.0984in]
415a
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.5 Stiffener Bonding增强板的接)
138 IPC-A-600H-201020104