Fast PCB Assembly and Manufacturing Services

South Bay Circuits provides SMT, through-hole, mixed-technology, and fine-pitch PCB assembly for prototype and production requirements. Our capabilities include BGA placement, RoHS-compliant assembly, water-soluble flux processes, conformal coating, potting, and specialty hand soldering. We support circuit-card assemblies for industrial, medical, aerospace, defense, automotive, instrumentation, and military applications.

SBC offers same-day, 3-day-turn, and standard-production assembly options. Actual timing is determined by board complexity, component availability, testing needs, documentation readiness, and production volume. Early review of the BOM, Gerber data, assembly drawings, and approved component substitutions helps identify risks quickly and supports the fastest practical build schedule.

Yes. South Bay Circuits supports rapid prototype builds as well as ongoing production programs. Its Chandler assembly capabilities are paired with strategic offshore volume-production partners, allowing customers to move from early validation builds to cost-conscious higher-volume manufacturing. This model helps preserve continuity in engineering requirements, quality expectations, documentation, and traceability as demand grows.

SBC integrates Automated Optical Inspection, X-ray inspection, in-circuit testing, and functional testing based on the board’s requirements. AOI helps identify placement and solder defects, while X-ray supports inspection of concealed connections such as BGAs. In-circuit and functional testing provide additional verification of electrical performance. Build records are maintained through SBC’s ERP-based traceability process.

South Bay Circuits is ISO 9001:2015 certified and uses IPC-A-610 acceptability criteria for assembly quality. The company also supports IPC-6012 Class III military PCB standards and maintains ITAR registration and CMMC Level 1 compliance. Additional compliance capabilities include ISO 13485 for medical device products, automotive compliance, and AS 9100 aerospace compliance.

Yes. SBC provides design support that includes schematic capture, circuit-board engineering, layout-ready packages, Design for Manufacturability evaluations, and Design for Testability evaluations. The team can also provide component sourcing consultation, counterfeit-parts avoidance protocols, and manufacturability cost-reduction guidance. These reviews help reduce NPI cycle time and prevent downstream assembly issues before production begins.

For an accurate quote, provide the PCB quantity, fabrication data, bill of materials, assembly drawings, pick-and-place or centroid file when available, test requirements, target delivery date, and any special process instructions. Include approved alternates and component procurement preferences if applicable. Complete, current documentation allows SBC to assess material availability, process requirements, testing scope, and the appropriate production turn.

Yes. South Bay Circuits uses its ERP system to maintain traceability across the assembly process. Traceability can support visibility into materials, production activity, inspection, and testing documentation for the build. This is particularly valuable for regulated or high-reliability programs where customers need controlled records, consistent processes, and clear accountability from prototype through production.