PCB Surface Finishes, Testing, and Managed Inventory

Surface Finishes

PCB Surface Finish

SBC provides multiple surface/plating finishes to meet the many requirements of the electronics industry.

These inculde:

  • Hot Air Solder Level (HASL) - Tin/Lead - SN63/PB37 (Non-RoHS)
  • ENIG (Electroless Nickel – Immersion Gold) (RoHS Compliant)
  • Immersion Silver (RoHS Compliant)
  • Gold Plating (RoHS Compliant)
  • Edge Plating
  • Gold Fingers

Laboratory – SBC has its own fully functional on-site Lab. It has complete capability to support process controls throughout the manufacturing process. All chemical baths are analyzed on a strict schedule. Test coupons are placed on 100% of panels processed. Boards and test coupons are analyzed through cross sections and measuring equipment to check for hole integrity and metal thickness on a routine daily basis. Our test coupons allow us to maintain a high level of quality control in many areas including: registration, plating thicknesses, hole quality, and dielectric thicknesses.


SBC does a 100% scan of all inner layers using Automatic Optical Inspection (AOI) equipment.

Finished boards are electrically tested to verify continuity of the circuitry. Final test is performed through utilization of our ATG A5CF Flying Probe Test System or one of our Everett Charles 9090 tester using a Bed of Nails fixture (for single sided test) or Clam Shell fixture (for double sided SMT boards) technology. Customer's find SBC products to be highly reliable due to our robust quality systems.

ATG A5CF Flying Probe Test System

Managed Inventory – Vendor Managed Inventory (VMI), JIT, & Kanban Programs

SBC has multiple VMI programs/models in place to offer our Customers. Based on customer supply chain requirements SBC will tailor a system to meet your needs. We can take full responsibility for maintaining an agreed inventory level of your products based on consumption or as required.

Certified ISO9001
ISO 9001:2008

SBC is an ISO 9001:2015 certified company through UL-DQS. South Bay Circuits utilizes ISO 9001:2015 eight fundamental quality management principles to help improve our PC Board Fab, PC Assembly, and Box Build performance. Certificate #: 10000903 QM15

ITAR Registration
ITAR registered printed circuit board fabrication

ITAR Registered! We are a manufacturer that builds defense articles with related technical data that can be defined on the United States Munitions List (Part 121 of the ITAR), where we are registered.

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