PCB Manufacturing Services
Custom Circuit Board Fabrication
PCBAndAssembly, based in China, is a global embedded PCB manufacturer offering end-to-end PCB fabrication services with advanced DFM support and strict IPC-A-610 Class 3 quality standards. We provide quick-turn PCB prototyping and production for clients in the USA and across the world.
14+
Years Experience
98.15%
On-Time Delivery
96%
customer satisfaction rate
99%
Quality Pass Rate
PCB Manufacturing Capability
Layer Support & Board Stackup
We support PCB stackups from 1 to 64 layers, including complex high-density interconnect (HDI) architectures such as 1+n+1 through 8+n+8 and 18L any-layer interconnect structures.
Our via technologies include blind, buried, via-in-pad, stacked microvias, and via-in-via designs, supporting an aspect ratio of up to 40:1 for robust multilayer PCB performance in high-reliability environments.
| Feature | Specification |
| Supported Layer Count | 1 to 64 layers |
| HDI Stack-Up Architectures | Configurations such as 1+n+1, 2+n+2, up to 8+n+8; 18L any-layer interconnect supported. |
| Via Technologies | Blind vias, buried vias, stacked microvias (laser-formed, 4 to 6 mil), via-in-pad (VIP), via-in-via, skip vias. Supports staggered or stacked via structures with copper-filled and resin-filled options. Laser via diameter: 3 to 6 mil (0.075 to 0.15 mm); mechanical via minimum: 0.1 mm. |
| Maximum Aspect Ratio | Up to 40:1 for high-reliability multilayer builds. |
| Minimum Drill Size | Mechanical: 0.1 mm; Laser: 3 to 6 mil (0.076 to 0.15 mm). |
| Finished Board Thickness | 0.1 to 12 mm. |
| Via Copper Plating Thickness | ≥25 µm (1 mil); uniformity within ±10%. |
| Dielectric Thickness Control | Prepreg layers down to 0.075 mm ±10% precision. |
| Stack-Up Symmetry Options | Symmetrical and bookbinder (asymmetrical) stack-ups are supported. |
| Impedance Control Support | Supported on specified layers; single-ended and differential; tolerance ±5% |
Line Width / Spacing & Mechanical Limits
Our fabrication capabilities achieve trace widths and spacings down to 1.8 mil (0.045 mm), ideal for fine-pitch components and HDI layouts. We support PTH diameters down to 0.08 mm, minimum routed slot widths of 0.5 mm, and silkscreen minimum line widths of 4 mil.
Solder mask dam resolution is 3 mil, with routing tolerance maintained within ±0.04 mm for precise board outlines and mechanical features.
Copper & Board Thickness
We manufacture PCBs with finished copper weights ranging from 0.5 oz to 28 oz (≈1000 μm), supporting both signal integrity and high current applications.
Final board thickness options span from 0.1 mm to 12 mm, enabling fabrication of ultra-thin flex boards to thick, heavy-copper PCBs for power electronics.
Substrate Materials
PCBAndAssembly offers a broad spectrum of PCB base materials, including standard FR4, high-Tg FR4, halogen-free, and CEM-3 for general applications.
For specialized performance, we fabricate with Rogers RO4003 and RO4350 for RF circuits, ceramic substrates for thermal stability, polyimide for flexible PCBs, and metal-core materials such as aluminum and copper for LED and power conversion boards.
Surface Finishes
We support all mainstream and advanced surface finishes, including HASL (leaded and lead-free), ENIG (Electroless Nickel Immersion Gold), ENEPIG, OSP (Organic Solderability Preservative), immersion silver, and immersion tin.
Selective finish combinations such as ENIG+OSP are available for mixed component assemblies, gold fingers, and edge connectors.
Soldermask & Legend
Solder mask is available in green, black, blue, white, yellow, and matte variants with hardness up to 6H and flammability rating UL94V-0.
Our high-resolution legend printing uses white, yellow, or black inks with a minimum line width of 4 mil for clear component markings and assembly labels.
Testing & Reliability
All boards undergo 100% electrical testing via flying probe or bed-of-nails methods. Additional reliability testing includes impedance control with ±3 Ω tolerance, thermal shock testing, and warp/twist validation ≤0.5%.
We provide IPC-Class 2 or Class 3 inspection and reporting upon request for applications requiring elevated reliability standards.
Certifications & Compliance
PCBAndAssembly is certified to ISO 9001:2015 (Quality), ISO 14001:2015 (Environmental), and IATF 16949:2016 for automotive-grade PCBs.
We also hold ISO 13485:2016 certification for medical device compliance. All PCBs are UL-listed, RoHS and REACH compliant, and manufactured to IPC-A-600 and IPC-6012 quality standards.