Manufacture of Bare Board PCB


Our manufacturing factory is well equipped to manufacture high quality printed circuit boards. We are very flexible to meet many different requirements in manufacturing PCB's. We do quick turn production ,as quick as two business days for prototypes and small vlume orders, and also do mass production with blanket orders and monthly releases shipped in containers. The lead time can be any time frames from two days to one month even though most of our bare board PCB customers order using standard lead time of 10 business days. Our on-tine shippng rate is above 98% with 70% of the orders shipped earlier. No cutoff time for quick turn orders and we can start quick turn order 24 hours a day any time. The cut off time for standard lead time is 8 pm for standard lead time orders, otherwise the order will not be considered placed until the following day.

Our Capability on Bare Board PCB


Please check PCB Glossary for reference. Please contact us if you have a special requirement not listed in the following table.

Feature Capability
Maximum Board Layers Up to 18 layers
Maximum Board size 25" x 17"
Board thickness (multilayer board) Maximum:0.13" (any layers) ;   Minimum: 0.025" (4 layer)
Board thickness (1 or 2 layer board) 0.02",  0.031",  0.039",  0.047",  0.062",  0.078",  0.094",  0.118", 0.125"
Tolerance of board thickness +/- 10%
Base materials FR-4, FR-406 (Tg 150 deg C), FR-408(Tg 170 deg C), G10, CEM3, Rogers, alumina ceramic
Copper weight and minimum trace width/space required 0.5 oz (min. trace width/space 4 mil), 1 oz (min. trace width/space 5 mil), 2 oz (min. trace width/space 7 mil), 4 oz (min. trace width/space 14 mil), 6 oz (min. trace width/space 20 mil), 8 oz (min. trace width/space 40 mil)
Minimum conductor width and space 0.003" (0.075 mm) for conductors including trace and annular ring
Minimum finished hole size 0.006" (0.15mm).  (Please see our drill sizes in stock)
Silkscreen/Legend colors white, yellow, black, pink, red
Solder Mask (LPI) Colors: Green, Black, Red, Blue, Purple, Yellow, Silver, Gold
Maximum hole aspect ratio 10:1
Surface plating Tin/Lead HASL, immersion gold (soft gold), electrolytic gold (hard gold), immersion tin, immersion silver, OSP
Gold finger Electrolytic gold on nickel: Max gold thickness 1.25 mm (30 micro-inches)
Blind/buried vias Yes

*Definition for standard features for bare board PCB : Finished PCB thickness 0.062", FR4 material, 1 oz finished copper thickness, minimum conductor width/space >= 6 mil, , minimum annular ring >= 6 mil, minimum finished hole size >=12 mil.  HASL Tin-lead or HASL Lead free, green LPI soldermask,  white silkscreen. For promotion prices, minimum board size 1 inch on either width or length, maximum board size 12 inches on either width or length, maximum board area 35 square inches.

*Definition for nonstandard features for bare board PCB: Any features not listed on above definition are non-standard features