PCB manufacturing requirements Screen:
|
Emulsion thickness
|
Emulsion thickness
|
0-100µ
|
Notes
|
|
Error of
|
Thickness*5%+/-0.5
|
|
Graphic size of the error
|
Pattern Size*0.1%+/-10µ
|
|
|
Variable error pattern
|
|
|
|
Tension control error
|
2
|
|
|
Surface Roughness
|
6µ
|
|
|
Fine Lines
|
>/-50µ
|
|
Circuit boards used the screen frame Screen size:
|
mm
|
1000*1000
|
1100*1100
|
700*1000
|
|
in
|
39.37*39.37
|
43.3*43.3
|
27.55*39.37
|
Circuit board used gauze Specifications:
Steel mesh
|
No.
|
Mesh
|
Diameterum
|
Yarn thicknessum
|
Openingum
|
Hole rate%
|
Transparent ink
|
|
Mesh count
|
Mesh diameter
|
Thickness
|
Mesh Opening Maschenweite
|
Open Area Offene Flache
|
cm3/m2
|
|
1
|
325
|
30
|
51/60
|
48
|
38
|
19.38-22.80
|
|
2
|
325
|
28
|
45/46/47/50/51/55/56
|
50
|
41.2
|
18.54-23.07
|
Polyester Mesh
|
No.
|
Mesh
|
Diameterum
|
Yarn thicknessum
|
Openingum
|
Hole rate%
|
Transparent ink
|
|
Mesh count
|
Mesh diameter
|
Thickness
|
Mesh Opening Maschenweite
|
Open Area Offene Flache
|
cm3/m2
|
|
1
|
300
|
34
|
55
|
45
|
29.6
|
16.3
|
