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Electroless Copper

PCB production
January 14, 2026
Category Connection: Rigid PCB Board
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Tags:
#Rigid PCB #Rigid Printed Circuit Board #Rigid Circuit Board
Brief: In this walkthrough, we highlight key design ideas and how they translate to performance for Double Sided Blue Oil Sinking Gold Rigid Board PCBs. You'll see how the blue solder mask provides clear visual contrast for easier inspection, while the immersion gold finish ensures excellent conductivity and reliability. We demonstrate the manufacturing process, including plating through-hole reliability and dual-sided assembly techniques, showing why this PCB is ideal for high-precision electronic devices and industrial control systems.
Related Product Features:
  • Features a blue solder mask that provides superior visual contrast for easier inspection and debugging of the circuit board.
  • Utilizes an immersion gold surface finish for excellent electrical conductivity and reliable signal transmission.
  • Offers high corrosion resistance and superior solderability for long-term performance and durability.
  • Designed for high-precision applications in communication equipment and industrial control systems.
  • Provides robust plated through-hole connections for reliable interlayer electrical connectivity.
  • Supports double-sided component assembly with optimized thermal management capabilities.
  • Available with personalized customization services including OEM and ODM options.
  • Requires precise solder mask registration to prevent mask slivers and ensure pad exposure.
FAQs:
  • What are the main advantages of using a blue oil immersion gold PCB?
    Blue oil immersion gold PCBs offer excellent visual contrast for easier inspection and debugging, combined with superior electrical conductivity, corrosion resistance, and solderability from the immersion gold finish, making them ideal for high-precision electronic applications.
  • What files and information do I need to provide for custom PCB orders?
    For custom orders, please provide your Gerber files (RS-274X), BOM if PCBA is needed, impedance requirements and stack-up if available, and any specific test requirements such as TDR or network analyzer testing.
  • What are the key manufacturing challenges with double-sided blue solder mask PCBs?
    Key challenges include ensuring reliable plated through-hole connections with uniform copper plating, maintaining precise registration between circuit layers, managing dual reflow soldering for components on both sides, and achieving accurate solder mask registration to prevent coverage issues.
  • How does the blue solder mask affect inspection processes?
    While blue solder mask provides good visual contrast for manual inspection, it can sometimes present challenges for Automated Optical Inspection (AOI) due to lower contrast against copper traces compared to standard green solder masks, requiring careful adjustment of inspection systems.
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