Layers

1-6 layers

1-6 layers PCB prototypes

Ink

Taiyo Ink

White Ink: Taiyo 2000 Serie

Green Ink: Taiyo 07 Serie 

Material

CEM-1/FR-4/Aluminum

CEM-1（Kingboard KB5150）

FR-4（Shengyi S1141,  Shengyi S1000H,  Shengyi S1000-2M,  Kingboard KB6160）

Aluminum (Goldenmax GL11 , Guangzhou Aluminum)

TG

Shengyi TG140

Kingboard TG130

Goldenmax TG130

Shengyi TG140 / TG150 / TG170

Kingboard TG130 / TG135 / TG150

Goldenmax TG130

Heat Conductivity for Alu. boards

1.0

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CTI

Class 3（CTI≥175V）

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Surface Finish

HASL, immersion gold, OSP

HASL is not acceptable for 0.4mm board.

Solder Mask:

(TAIYO)

Green ,Red, Yellow, Blue, White ,Black

No extra charge (Green, White)

Silkscreen Color:

(TAIYO)

Green ,Red, Yellow, Blue, White ,Black

No extra charge (Green, Black, White)

Maximum Dimension

650x520mm/640x480mm

1/2  layers: 650x520mm

4/6 layers: 640x480mm

Dimension Tolerance 
(Outline)

±0.15mm

±0.15mm for CNC routing

±0.15mm for V-scoring

Thickness

0.4--2.4mm

1-2 layers: 0.4-2.4mm

4 layers: 0.8-2.4mm

6 layers: 1.2-2.4mm

Thickness  Tolerance

 ( t≥1.0mm)

± 10%

Normally take positive tolerance due to PCB processing steps such as electroless copper, solder mask and other types of finish on the surface.

Thickness Tolerance

( t<1.0mm)

±0.1mm

Normally take positive tolerance due to PCB processing steps such as electroless copper, solder mask and other types of finish on the surface.

Min Trace

4mil（0.1mm）

Minimum trace width is 4mil, strongly suggest to design trace above 6mil (0.15mm) to save cost.

Min Spacing

4mil（0.1mm）

Minimum trace spacing is 4mil, strongly suggest to design trace above 6mil (0.15mm) to save cost.

Finished Outer

Copper Thickness

1 oz/ 2oz

(35um/75um)

Thickness of outer copper foil is 1oz or 2oz

1 oz＝35um，2 oz=70um

Finished Inner

Copper Thickness

1 oz (35um)

Thickness of inner copper foil is 1 oz.

Bow and Twist

Per cater-corner length，≤0.75%

For boards without SMT, the max. 1.5%

Drill Size

0.25--6.5mm

For vias larger than 6.5mm, multiple drilling or milling is recommended

PTH Deviation

±3mil

/

NPTH Deviation

±2mil

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Hole Position Deviation

±3mil

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Hole Wall Roughness（Max）

1.5mil

/

Min Slot Width

0.6mm

For HASL, the min. finished slot width is 0.45mm，for other surface finish, it is 0.5mm.

Board Thickness/Via Diameter

≤6：1

7:1≤value≤8:1, add one more day for fabrication

PTH Deviation (Width)

±4mil

/

PTH Deviation (Length)

±5mil

/

NPTH Deviation (Width)

±3mil

/

NPTH Deviation (Length)

±4mil

/

Hole Wall Copper Thickness (Thinnest)

≥0.71mil

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Hole Wall Copper Thickness (Average)

≥0.8mil

/

Via Space (Same Net)

≥8mil

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Via Space (Different Net)

≥17mil

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Min Space for Component Vias in Different Net

≥24mil

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Max. PTH (Round Hole)

8mm

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Max. PTH (Round Slot Holes)

6*10mm

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Annular Ring

≥0.153mm（6mil）

It doesn’t limit the size of the single side of the annular ring if there is enough space.

Or annular ring surrounded by traces should be equal to or larger than 6mil.

Finished Hole

Diameter (CNC)

0.25--6.5mm

Due to the copper attached to the inner wall of the hole, the diameter of the finished hole is generally smaller than designed.

Hole Size Tolerance (CNC)

±0.075mm

e.g. For the 0.6mm hole, the finished hole size between 0.525mm to 0.675mm is acceptable.

Solder Mask

Photosensitive ink

Photosensitive ink is mostly adopted. Plastisol is used in the inexpensive paper-based boards.

Min Character Width (Legend)

≥0.15mm

Characters width less than 0.15mm will be unidentifiable.

Min Character Height (Legend)

≥0.8mm

Characters height less than 0.8mm will be unidentifiable.

Character Width to Height Ratio (Legend)

1:5

1:5 is the most suitable ratio for production.

Distance between Trace and Outline

≥0.3mm（12mil）

Ship as individual boards: Distance between Trace and Outline ≥0.3mm

Ship as Panelized boards with V-cut: Distance between Trace and V-cut line ≥0.4mm

Panelization without Spacing

0mm

Ship as Panelized boards and the spacing between boards is 0mm.

Panelization with Spacing

1.6mm

Make sure the spacing between boards should be ≥1.6mm, otherwise it will be hard to process routing.

Half Hole Diameter

Minimum Half hole Diameter: 1mm, No more than 10 holes.

Half hole is a special technology, so half hole diameter should be greater than 1mm. 

Solder Mask Bridge

0.1mm

Please make a note, if there is solder mask bridge requirement. The price may rise.