Where is FQC located?

FQC operates in AMATA City Rayong, Thailand's Eastern Economic Corridor, with an 88,000 m² facility (28,700 m² production).

What PCB capabilities does FQC have?

FQC manufactures rigid PCBs up to 100 layers, with 5th-order any-layer HDI capability up to 16 layers. Materials cover high-frequency Rogers and Megtron laminates, heavy copper from 1 oz to 15 oz, and fine-pitch designs adjacent to IC substrate territory.

Is FQC certified for automotive PCB?

Yes. FQC holds IATF 16949 for automotive, plus ISO 13485 for medical devices and QC080000 for hazardous substance management — a triple-certification rare among Southeast Asian PCB manufacturers.

FQC is a wholly-owned subsidiary of Sihui Fushi Electronics (Shenzhen Stock Exchange: 300852), a publicly-listed Chinese PCB manufacturer.

Can FQC make 800G optical module PCB?

Yes. FQC was customer-qualified for 800G optical module PCB in October 2024 and is shipping in small-batch production. The 1.6T variant has also passed customer certification.

Why pick a Thai PCB manufacturer instead of Chinese?

FQC offers China+1 supply chain resilience — a Thailand-origin PCB hedges against US-China tariffs and CFIUS exposure, while the Sihui Fushi parent retains access to Shenzhen's PCB ecosystem economics, materials, and engineering depth.

Does FQC make PCB for AI servers?

Yes. AI server backplane is a primary FQC specialty, covering PCIe 5/6 backplanes and 800G Ethernet switch boards. Customers include hyperscale cloud and AI startup hardware programs.

How do I get a quote from FQC?

Submit an RFQ at https://test.fqc.co.th/quote with the structured spec form, or contact engineering directly through https://test.fqc.co.th/contact.

SUPPLIER COMPARISON

FQC vs Sierra Circuits — production-scale Thai HDI vs US quick-turn proto fab

Pick FQC for production volume — 5th-order any-layer HDI, IATF 16949 / ISO 13485, and unit economics that work past 1k boards/month. Pick Sierra Circuits for early-stage prototype turnaround in California with their well-known DFM tools and US-domestic ship-to-customer convenience.

Side-by-side, by dimension

	FQC	Sierra Circuits
Primary use case	Production volume + low-volume/high-mix specialty	Quick-turn prototype + low-volume
Capability ceiling (HDI)	5th-order any-layer up to 16 layers (production)	HDI prototype-class; production volumes more limited
Layer count ceiling	Up to 100 layers (42L award; 100L sample)	Typically lower — quick-turn shop, not heavy backplane
Lead time	2-4 weeks HDI proto; 4-6 weeks production	24-hour to 5-day quick-turn for many builds
Certifications	IATF 16949 + ISO 13485 + QC 080000 + ISO 9001/14001/45001	ISO 9001 + ITAR-registered + MIL-spec + medical builds
Geography	Rayong, Thailand (China parent)	Sunnyvale, California — US-domestic
Pricing	Mid — favorable for >100 board orders	High per-board for low quantities; quick-turn premium
DFM tooling for designers	Capability docs + AI Engineer chat tool	Public Better DFM analyzer + impedance + stack-up calculators
China+1 hedge	Yes — full Thai production line	Yes — US-domestic, no China exposure
Customer profile	Tier-1 / OEM with production volume requirements	Engineers and startups iterating on early-stage hardware
Volume sweet-spot	Hundreds to tens of thousands per part	1-100 boards per build, multiple revisions per month

When to pick FQC

·Your project is past prototype and you need 1,000+ boards/month with stable yield economics.
·You need IATF 16949 or ISO 13485 production sign-off — automotive or medical regulated builds.
·You want a non-China factory location to address tariff or BOA / supply-chain mandates.
·Your design is 5th-order any-layer HDI for AI / optical / advanced telecom — production-grade, not proto.

When to pick the competitor

·You're in early-stage hardware iteration — board changes weekly, batch sizes are 5-50 units.
·You need 24-hour or 3-day quick-turn for the next demo / investor build.
·US-domestic shipping and ITAR / MIL-spec are required for the program.

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