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MULTI PCB
HDI PCB
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Technics Flow Line
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Welcome to huading-group
Double Side board Main Application:
Consumer¡¢Telecom¡¢Industrial¡¢Aero Industry

Technical Flow Chart

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Plant


Technological Advantages
Processing capabilities in many fields:
¡ñ Double-sided ~ High Multi-layer PCB (max. 40-layer)
¡ñ HDI (2+X+2 Build UP)¡¡
¡ñ HDI thin PCB (0.25mm for 4-layer, 0.40mm for
6-layer)
¡ñ Big size, Back plane PCB (Panel size at
24¡±x36¡±, Thickness of 4.5mm or more)
¡ñ Special-purpose PCB (Heavy copper(6oz) PCB, /
Buried resistance PCB)
¡ñ Via hole copper plating
¡ñ Thick gold
¡ñ Uneven gold finger |
Workstation |
Content |
Inner layer imaging |
Both wet and dry film, auto-exposure
machines from Japan, horizontal etching
lines from Germany, enhancing the capability
to produce min. 40¦Ìm -thick CCL and min.
width/gap 40¦Ìm/40¦Ìm. |
Laminating |
Leading integrated hot and cold laminating
machines from Germany, able to process up to
40-layer PCB. Pressing the min. thickness of
0.20mm, the max. thickness of 5mm or more,
with excellent thickness uniformity. |
Mechanical drilling |
HITACHI CNC drilling machines to ensure the
min. hole diameter of 0.10mm with high
precision. |
Laser drilling |
HITACHI CNC laser drilling machines to
ensure the min. hole diameter 0.075mm,
drilling speed 20,000 holes / min or more,
high-density interconnect board producing. |
Copper plating |
Pulse plating / Continuous vertical panel
plating, special tools for 40¦Ìm -thick CCL
,to achieve Aspect Ratio with 20:1 and good
copper distribution COV¡Ü6%. |
Copper electroplating micro via filling |
Applying selected special chemical additives
,optimized ?electroplating process parameter
,together with the appropriate
electroplating equipment, to ?fulfill the
high-end customer's requirement on high
quality of high board thickness to via
diameter ratio blind via and through via
filling capability, to ensure the
reliability of the HDI PCB. |
Solder mask print |
E-spray technology, able to print over 0.1mm
thin PCB, and max.12 oz heavy copper with
solder mask thickness¡Ý5um on trace edge. |
Electrical Test |
Four-terminal tester, the min. test pad
diameter at 0.1mm, min. test resistance at
10 milliohms to ensure quality and
reliability of the HDI PCB. |
Special carbon printing |
Special configuration of the carbon &
dielectric paste print line, life test up to
18 million cycles to ensure product
reliabilities. |
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