IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第42页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • No voids. • 无 空洞。 Acceptable - Class 3 (可接受条件 - 3级) • No more than one void in any hole. • Not more than 5% of the holes have voids. • The void is not more than 5% of the…

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Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No voids.
空洞。
Acceptable - Class 3(可接受条件 - 3级)
No evidence of voids in the hole.
空洞象。
Acceptable - Class 2(可接受条件 - 2级)
No more than one void in any hole.
Not more than 5% of the holes have voids.
Any void is not more than 5% of the hole length.
The void is less than 90° of the circumference.
内空洞1
空洞的孔数5%
一空洞的长度不大于其孔长5%
空洞90°
Acceptable - Class 1(可接受条件 - 1级)
No more than three voids in any hole.
Not more than 10% of the holes have voids.
Any void is not more than 10% of the hole length.
All voids are less than 90° of the circumference.
内空洞3
空洞的孔数10%
一空洞长度不大于其孔长10%
所有的空洞均小90°
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。
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253b
253c
253d
2.5 HOLES – PLATED-THROUGH – GENERAL(镀覆孔 通则)
2.5.3 Voids – Copper Plating(铜镀层空洞)
33IPC-A-600H-2010 20104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No voids.
空洞。
Acceptable - Class 3(可接受条件 - 3级)
No more than one void in any hole.
Not more than 5% of the holes have voids.
The void is not more than 5% of the hole length.
The void is less than 90° of the circumference.
内空洞1
空洞的孔数5%
空洞长度不大于其孔长5%
空洞90°
Acceptable - Class 2(可接受条件 - 2级)
No more than three voids in any hole.
Not more than 5% of the holes have voids.
Any void is not more than 5% of the hole length.
All voids are less than 90° of the circumference.
内空洞3
空洞的孔数5%
一空洞长度不大于其孔长5%
所有空洞90°
Acceptable - Class 1(可接受条件 - 1级)
No more than five voids in any hole.
Not more than 15% of the holes have voids.
Any void is not more than 10% of the hole length.
All voids are less than 90° of the circumference.
内空洞不5
空洞的孔数15%
空洞长度不大于其孔长10%
所有空洞90°
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。
254a
254b
254c
2.5 HOLES – PLATED-THROUGH – GENERAL(镀覆孔 通则)
2.5.4 Voids – Finished Coating(最终涂覆层空洞)
34 IPC-A-600H-201020104
Target Condition/Acceptable - Class 1,2,3
(⽬标条件/可接受条件 - 1,2,3级)
No lifting of lands.
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。
255a
255b
255c
2.5 HOLES – PLATED-THROUGH – GENERAL(镀覆孔 通则)
2.5.5 Lifted Lands (Visual)(焊盘起翘 (⽬检)
35IPC-A-600H-2010 20104