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Base Material
FR-4 is the most popular substrate material for rigid PCBs.
Flex PCBs utilize a thin, flexible polymer film as the substrate for the circuitry. Flex PCBs reduce space consumption, and have lower weight.
Aluminum/copper core boards have better heat dissipation and thermal transfer than standard FR-4 constructions.
Note: For Aluminum/Copper core boards, the min drill size is 1.0mm, and min slot width is 1.6mm.
Layer
The number of copper layer on the board.
Dimensions
The dimension of single PCB or PCB panel you upload.
X
PCB Quantity
The quantity of boards you require
Delivery Format
How many different designs in your files separated by v-cuts,
stamp holes or milling slots
Column :
mm
Row :
mm
Thickness
The thickness of finished board. Board thickness tolerance is
+/-10%.
PCB Color
The PCB solder mask color. The green standard has the best
performance and fastest turnaround time.
For most colors, the silkscreen is printed white.
Only for white solder mask, the silkscreen is printed black.
Surface Finish
HASL is an affordable finishing option that utilizes tin/lead to
creating a thin protective covering on a PCB.
ENIG has become the most popular surface finish in the industry as it offers flat surface, lead free and RoHS compliant, longer shelf life, and tighter tolerances can be held for plated holes.
Silk Screen
For most colors, the silkscreen is printed white. Only for white
solder mask, the silkscreen is printed black.
Please note, white printed silkscreen could be easily blend in with the gray surface.No silkscreen is recommended on the bare Aluminum surface.
Outer Copper
Weight
Weight
Copper weight on the outer layers(top and bottom).
The copper weight for inner layers is 0.5 oz by default.
Via Covering s
Vias are covered with soldermask and are not processed with HASL
or ENIG. Boards with 6+ layers are upgraded to Epoxy Filled &
Capped Via for free.
Flying Probe Test
We electrically test PCBs by using a flying probe tester to
ensure there are no open circuits or no short circuits.
Gold Finger
Gold fingers are the gold-plated columns along the connecting
edges of PCBs.
Only when ENIG surface finish is chosen, the fingers will be gold-plated.
If you choose HASL surface finish, we will use HASL as edge connect plating.
Castellated Holes
Castellations are plated through holes located in the edges of a
printed circuit board and cut through to form a series of half
holes.
The minimum diameter of castellated holes is 0.60mm.
Appearance
According to the IPC Class 2 standard, less than two 0.09㎡
scratches are acceptable.Repair is allowed without affecting the
electrical performance.
If you need more strict requirements, we provide an option to offer Superb appearance quality.
Silk Screen
Technology
Technology
PCB Remarks 