Kingford focus on the high-quality PCBA order demand of "Multiple varieties, medium and small batch, and short lead time".

Rigid Printed Circuit Boards

10-layer immersion gold PCB

10-layer immersion gold PCB

Name: 10-layer immersion gold PCB

Layers: 10 layers

Material: FR4 High TG

Finished plate thICkness: 1.6mm

Finished copper thickness: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1/1/1/1/1/1/1/1/1 oz

Special Process:

Minimum line width 3.5mil

Hole wall thickness 25um

Small BGA circuit board Small

Small BGA circuit board Small

Name: SMAll BGA circuit board PCB

Layers: 4 layers

PCB material: FR4 TG170

PCB thickness: 1.6mm

Surface treatment: Immersion Gold ENIG(Gold thICkness 2u”)

Finished Copper Thickness: 1/1/1/1 OZ

Solder Mask Ink: Green, Sun PSR-4000

Special Process:

Minimum line width and line spacing: 0.07/0.09mm

BGA pad: 0.25 mm

Immersion Gold Plate

Immersion Gold Plate

Name: Immersion Gold Plate

Layers: 4 layers

Material: FR4

Finished plate thICkness: 1.6mm

Surface treatment: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1/1/1 oz inside and outside

Small BGA circuit board

Small BGA circuit board

Name: SMAll BGA circuit board

Material: FR4 High TG

Finished plate thICkness: 1.6mm

Surface treatment: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1 oz inside and outside

Special Process:

BGA pad 0.1mm

Green oil PCB

Green oil PCB

Name: Green Oil PCB

Layers: 2 layers

Material: FR4 TG150

Finished plate thICkness: 1.6mm

Surface treatment: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1 oz inside and outside

6-layer blue oil immersion gold plate

6-layer blue oil immersion gold plate

Name: 6-layer blue oil immersion gold plate

Layers: 6 layers

Material: FR4 TG170

Finished plate thICkness: 1.6mm

Surface treatment: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1/1/1/1/1 oz inside and outside

6 layers black immersion gold PCB

6 layers black immersion gold PCB

Name: 6-layer black immersion gold PCB

Layers: 6 layers

Material: FR4 TG170

Finished plate thICkness: 1.6mm

Finished copper thickness: Immersion Gold (ENIG)

Finished copper thickness: inner and outer layers 1/1/1/1/1/1 OZ

2 Layers FR4 PCB

2 Layers FR4 PCB

Name: 2 Layers FR4 PCB

Layers: 2 layers

Material: FR4

Finished plate thICkness: 1.6mm

Finished copper thickness: Immersion Gold (ENIG)

Finished Copper Thickness: 1/1 oz inside and outside

Standard PCB Production Capability
FeatureCapability
Quality GradeStandard IPC 2
Number of Layers1 - 32layers
Order Quantity1pcs - 10,000,000 pcs
Build Time2days - 5weeks (Expedited Service)
MaterialFR-4 Standard Tg 150°C, FR4-High Tg 170°C, FR4-High-Tg 180°C, FR4-Halogen-free, FR4-Halogen-free & High-Tg
Board SizeMin 6*6mm | Max 600*700mm
Board size tolerance±0.1mm - ±0.3mm
Board Thickness0.4mm - 3.2mm
Board Thickness Tolerance±0.1mm - ±10%
Copper Weight0.5oz - 6.0oz
Inner Layer Copper Weight0.5oz - 2.0oz
Copper Thickness Tolerance+0μm +20μm
Min Tracing/Spacing3mil/3mil
Solder Mask SidesAs per the file
Solder Mask ColorGreen, White, Blue, Black, Red, Yellow
Silkscreen SidesAs per the file
Silkscreen ColorWhite, Blue, Black, Red, Yellow
Surface FinishHASL - Hot Air Solder Leveling
Lead Free HASL - RoHS
ENIG - Electroless Nickle/Immersion Gold - RoHS
ENEPIG - Electroless Nickel Electroless Palladium Immersion Gold - RoHS
Immersion Silver - RoHS
Immersion Tin - RoHS
OSP -Organic Solderability Preservatives - RoHS
Min Annular Ring3mil
Min Drilling Hole Diameter6mil, 4mil-laser drill
Min Width of Cutout (NPTH)0.8mm
NPTH Hole Size Tolerance±.002" (±0.05mm)
Min Width of Slot Hole (PTH)0.6mm
PTH Hole Size Tolerance±.003" (±0.08mm) - ±4mil
Surface/Hole Plating Thickness20μm - 30μm
SM Tolerance (LPI).003" (0.075mm)
Aspect Ratio1.10 (hole size: board thickness)
Test10V - 250V, flying probe or testing fixture
Impedance tolerance±5% - ±10%
SMD Pitch0.2mm(8mil)
BGA Pitch0.2mm(8mil)
Chamfer of Gold Fingers20, 30, 45, 60
Other TechniquesGold fingers
Blind and Buried Holes
peelable solder mask
Edge plating
Carbon Mask
Kapton tape
Countersink/counterbore hole
Half-cut/Castellated hole
Press fit hole
Via tented/covered with resin
Via plugged/filled with resin
Via in pad
Electrical Test
PCB Drilling machine

PCB Drilling machine

PCB pattern plating line

PCB pattern plating line

PCB solder mask expose machine

PCB solder mask expose machine

PCB pattern expose machine

PCB pattern expose machine

Strip film etching line

Strip film etching line

Solder mask screen silk print machine

Solder mask screen silk print machine

Solder mask scrubbing line

Solder mask scrubbing line

PCB Flying Probe Test (FPT)

PCB Flying Probe Test (FPT)

Fully automatic exposure machine

Fully automatic exposure machine

Kingford
Why choose us?
24-hour customer service
24-hour customer service

we provide 24-hour service and support, you will receive a reply to your question within 2 hours and a quotation within 24 hours.

timely delivery
timely delivery

Own PCB factory of 50,000 square meters, the monthly output can reach 60,000 square meters, no minimum PCB order requirements

Free DFM service
Free DFM service

Before the official production of the PCB, we will conduct a free DFM review service and support free Allegro, Altium, Protel, PADS, OBD, Gerber and other formats.

Quality assurance
Quality assurance

We can provide you with high frequency, high TG, high CTI, buried blind via, aluminum based PCB manufacturing, the quality is fully compliant with IPC 610-D standard, testing and quality assurance

Kingford
Our PCB&PCBA Solutions

The company has successively cooperated with more than 3,000 high-tech R&D, manufacturing and service companies around the world, with technical solutions covering medical, industrial control, artificial intelligence, Internet of Things, automotive electronics, smart home and other fields.

Kingford
Rigid Circuit Board FAQs
1.Where are rigid PCBs used?
Laptops, Tablets, Cell Phones, Heart Monitors, CAT Scans, MRI Systems, Aircraft Cockpit Instruments, Temperature Sensors, Control Tower Instruments, etc...
2.What are the characteristics of rigid PCB?
Rigid PCB is a regular PCB, it cannot be like Flexi PCB because rigid PCB cannot be twisted or folded into any shape because it has FR4 reinforcement which is very useful for increasing stiffness. Rigid PCBs are cheaper than flexible PCBs. They are traditional PCBs that are widely used in many electronic products.
3.What is the difference between rigid board and flexible board?
Rigid PCBs are circuit boards built on rigid base layers that cannot be bent, while flexible PCBs, also known as flex circuits, are built on flexible base layers that can be bent, twisted and folded.
4.What is a rigid circuit board?
A rigid PCB is a form of circuit board that is structurally strong and inflexible, so it cannot be bent or bent. They consist of several different layers, such as substrate layers, copper layers, solder mask layers and silkscreen layers, which are joined together by adhesive and heat.
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