Panel For Example Panel For Example Panel For Example

We Offer a Full Range of Printed Circuit Board Capabilities to Fit All of Your PCB Needs


Explorer Technology is a professional quick turn PCB prototyping,PCB Assembly and low-volume production manufacturer located in NingBo China.(3 major PCBs and 2 PCB Assembly production).

The information below details some of the key capabilities that Explorer Technology can offer and support today. You will find information here relating to the specific materials we can support, the PCB technologies or product types which we currently produce, as well as some of the tolerances which we can achieve.

The first category is what we call "Quick-turn" and means we can offer Small Quantity - Quick Turn PCBs, Custom Spec - Standard PCBs,Quick-order PCB(Gerber Viewer).

The second is our “Advanced” offering and this shows the very best that Explorer Technology can offer:Full Spec PCBs, Highly Specialized Precision PCBs, & Large Scale Production,but sometimes some plates and materials are temporarily out of stock.

Please send messages to your sales rep if your boards are beyond the capabilities listed below.

“Standard PCB” = Advanced + quick-order



PCB Capabilities - Quick-turn PCB

Items Manufacturing Capabilities Remarks
Number of Layers - 1-10 layers For orders above 10 layers,please view the below "Standard PCB" or contact our sales rep.
Material -
FR-4,Aluminum
For Flex, Rigid-flex, Metal-based (Aluminum etc.,), HDI, Halogen-free, High Tg, etc.,please view the below "Standard PCB" or contact sales rep.
Maximum PCB Size(Dimension) - 500*1100mm (min 5*6mm) Any sizes beyond this dimension, please view the below "Standard PCB" or contact sales rep.
Board Size Tolerance(Outline) - ±0.2mm/±0.5mm ±0.2mm for CNC routing, and ±0.5mm for V-scoring.
Board Thickness board thickness 0.2-2.4mm 0.2,0.4, 0.6, 0.8, 1.0, 1.2, 1.6, 2.0, 2.4mm. Please view the below "Standard PCB" or contact us if your board exceeds these.
Board Thickness Tolerance(t≥1.0mm) - ±10% Normally “+ Tolerance” will occur due to PCB processing steps such as electroless copper, solder mask and other types of finish on the surface.
Board Thickness Tolerance(t<1.0mm) - ±0.1mm
Min Trace Min Trace Min Spacing 0.1mm/4mil Min manufacturable trace is 4mil(0.1mm), strongly suggest to design trace above 6mil(0.15mm) to save cost.
Min Spacing Min manufacturable spacing is 4mil(0.1mm), strongly suggest to design spacing above 6mil(0.15mm) to save cost.
Outer Layer Copper Thickness Outer Layer Copper Thickness 1oz/2oz/3oz(35μm/70μm/105μm) Also known as copper weight. 35μm=1oz, 70μm=2oz, 105μm=3oz. Please view the below "Standard PCB" or contact us if you need copper weight greater than 3oz.
Inner Layer Copper Thickness Inner Layer Copper Thickness 1oz/1.5oz(35μm/50μm) Inner copper weight as per customer’s request for 4 and 6 layers(Multi-layer laminated structure). Please contact us if you need copper weight greater than 1.5oz.
Drill Sizes (CNC) drill Sizes (CNC) 0.2-6.3mm Min drill size is 0.2mm, max drill is 6.3mm. Any holes greater than 6.3mm or smaller than 0.3mm will be subject to extra charges.
Min Width of Annular Ring Min Width of Annular Ring 0.15mm(6mil) For pads with vias in the middle, Min width for Annular Ring is 0.15mm(6mil).
Finished Hole Diameter (CNC) Finished Hole Diameter (CNC) 0.2mm-6.2mm The finished hole diameter will be smaller than size of drill bits because of copper plating in the hole barrels
Finished Hole Size Tolerance(CNC) - ±0.08mm For example, if the drill size is 0.6mm, the finished hole diameter ranges from 0.52mm to 0.68mm will be considered acceptable.
Solder Mask PCB Solder Mask LPI Liquid Photo-Imageable is the mostly adopted. Thermosetting Ink is used in the inexpensive paper-based boards.
Minimum Character Width(Legend) PCB Silkscreen 0.15mm Characters of less than 0.15mm wide will be too narrow to be identifiable.
Minimum Character Height (Legend) - 0.8mm Characters of less than 0.8mm high will be too small to be recognizable.
Character Width to Height Ratio (Legend) - 1:5 In PCB silkscreen legends processing, 1:5 is the most suitable  ratio
Minimum Diameter of Plated Half Holes - 0.6mm Design Half-Holes greater than 0.6mm to ensure better connection between boards.
Surface Finishing Surface Finishing HASL with lead
HASL lead free
Immersion gold,OSP
The most popular three types of PCB surface finish. Please view the below "Standard PCB" or contact us for other finishes.
Solder Mask Solder Mask Green ,Red, Yellow, Blue, White ,Black

No extra charge (Green, Red, Yellow, Blue)

Silkscreen PCB Silkscreen White, Black, None

No extra charge.

Panelization V-scoring V-scoring,
Tab-routing,
Tab-routing with Perforation (Stamp Holes)

Leave min clearance of 1.6mm between boards for break-routing. For V-score panelization, set the space between boards to be zero.

Others - Fly Probe Testing (Free) and A.O.I. testing(free), ISO 9001:2008 ,UL Certificate

No extra charge.