Blue Oil Double Sided Printed Circuit Board FR4 Subtrate Customized Dimension

MOQ： Sample,1 pc(5 square meters)
Price： Based on Gerber Files
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Payment Terms	,T/T,Western Union
Supply Ability	100000㎡/Month
Delivery Time	NA
Pcb Type	Double Sided Printed Circuit Board
Rohs Compliant	Yes
Surface	OSP
Solder Mask Color	Green
Layers	1-30L
Pcb Testing	100% E-Test
SMT Technology	SMD, BGA, DIP, Etc.
Type	customized electronics
Special Tech	Impendance Control
Pcb Thickness	1.6/1.2/1.0/0.8mm or Customized
Brand Name	xingqiang
Model Number	As Per Customer's Model
Certification	ISO 9001 / RoHS /UL / IATF 16949 (automotive)
Place of Origin	China

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Product Specification


Payment Terms	,T/T,Western Union	Supply Ability	100000㎡/Month
Delivery Time	NA	Pcb Type	Double Sided Printed Circuit Board
Rohs Compliant	Yes	Surface	OSP
Solder Mask Color	Green	Layers	1-30L
Pcb Testing	100% E-Test	SMT Technology	SMD, BGA, DIP, Etc.
Type	customized electronics	Special Tech	Impendance Control
Pcb Thickness	1.6/1.2/1.0/0.8mm or Customized	Brand Name	xingqiang
Model Number	As Per Customer's Model	Certification	ISO 9001 / RoHS /UL / IATF 16949 (automotive)
Place of Origin	China
High Light	Double Sided Printed Circuit Board 1.6mm ，Double Sided FR4 PCB Board ，Blue Oil FR4 Printed Circuit Board

OSP Blue Oil Double Sided Printed Circuit Board

OSP blue oil double panel is a double-sided printed circuit board that combines OSP (Organic Solderability Preservative) surface treatment with a blue solder mask. It features a double-sided wiring design: the substrate is coated with blue ink as the solder mask, which provides insulation, protects the circuit, and allows for clear visual identification of circuit areas due to its distinct color. Both sides of the board undergo OSP treatment on exposed copper surfaces, forming a thin organic protective film through chemical reactions to prevent copper oxidation while maintaining solderability. This panel is suitable for small to medium complexity circuits and adapts to the welding needs of conventional and precision components.

​Key Advantages of Anti-Oxidation Blue Solder Mask Double-Sided PCBs
Superior Oxidation Resistance:The specialized anti-oxidation coating, combined with the blue solder mask, provides robust protection for copper traces, preventing oxidation and corrosion in humid or harsh environments.
Enhanced Visual Contrast:The blue solder mask offers clear contrast against silver or tin surface finishes (e.g., HASL, ENIG) and component labels, simplifying visual inspection, debugging, and manual soldering.
Reliable Insulation & Protection:The solder mask effectively insulates copper layers to avoid short circuits, while shielding the board from dust, moisture, and mechanical wear during assembly and operation.
Balanced Cost & Performance:As a double-sided structure with a mature blue solder mask process, it maintains cost-effectiveness for medium-volume production, suitable for low-to-medium frequency electronic devices.

Main Manufacturing Process of Anti-Oxidation Blue Solder Mask Double-Sided PCBs
Substrate Preparation:Cut FR-4 epoxy laminate (the base material) into standard-sized boards, and clean their surfaces to remove dust, oil, or impurities for subsequent copper bonding.
Copper Cladding & Patterning:Laminate copper foils onto both sides of the substrate. Then, use photolithography: coat the copper layer with photoresist, expose it to UV light through a circuit mask, and etch away unexposed copper to form the desired circuit traces.
Drilling & Plating:Drill through-holes (PTHs) to connect circuits on both sides. Plate the holes with copper via electroplating to ensure electrical conductivity between the top and bottom layers.
Blue Solder Mask Application:Screen-print or spray blue solder mask ink onto the board surface. Cure it under UV light to form a protective layer, leaving only pads and holes exposed for soldering.
Anti-Oxidation Surface Finishing:Apply an anti-oxidation coating (e.g., chemical treatment or specialized film) on exposed copper pads. Common finishes like HASL (Hot Air Solder Leveling) or ENIG (Electroless Nickel Immersion Gold) are often used to enhance oxidation resistance.
Silkscreen Printing & Curing:Print component labels, reference marks, and logos on the blue solder mask layer using white or black ink, then cure it to fix the markings.
Electrical & Visual Inspection:Conduct electrical tests (e.g., continuity, insulation resistance) to check circuit functionality. Perform visual inspections to ensure solder mask uniformity, pattern accuracy, and no defects like bubbles or scratches.
Final Cutting & Packaging:Cut the multi-panel board into individual PCBs according to design specifications, then clean and package them to prevent damage during transportation.

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Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory



Business Type:

Manufacturer,Trading Company 


Year Established:

1995 


Total Annual:

84,094,800-84,094,800


Employee Number:

500~800 


Ecer Certification：

Verified Supplier 

Dongguan Xingqiang Circuit Board Co., Ltd. was established in 1995 and is a professional circuit boardfactory that manufactures single-sided and double-sided PCBs, multi-layer PCBs, and Rigid Flex PCBs. As a professional supplier of customized boards, we work closely with our clients, le... Dongguan Xingqiang Circuit Board Co., Ltd. was established in 1995 and is a professional circuit boardfactory that manufactures single-sided and double-sided PCBs, multi-layer PCBs, and Rigid Flex PCBs. As a professional supplier of customized boards, we work closely with our clients, le...

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Dongguan Xingqiang Circuit Board Technology Co., Ltd.
Zhupingsha Industrial Zone, Wangniudun Town, Dongguan City, Guangdong Province
https://www.multilayer-pcbs.com/

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