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Custom 4-Layer SATA SSD PCB Manufacturing
This 4-layer SATA SSD PCB is engineered for SATA III 6 Gbps solid-state drives — optimizing signal integrity, thermal dissipation, and long-term durability for consumer and industrial storage, with strict 50Ω/85Ω/100Ω impedance control and 3/3mil fine-pitch routing.
Built on FR-4 Tg180 with ENIG surface finish, every SATA SSD PCB undergoes 100% electrical testing and impedance verification before shipment. For urgent builds, our fast PCB manufacturing services offer expedited turnaround.
4
Layer Count
4/4 mil
Min. Trace / Space
0.20 mm
Min. Via Diameter
Tg 180
Glass Transition Temp
1 µ”
ENIG Gold Thickness
ISO9001-2004
ISO14001
UL (E305905)
IPC-Class 2/Class 3
IATF 16949
RoHS
4-Layer SATA SSD PCB Stackup Diagram
Proper layer ordering is critical to prevent impedance mismatching. Our standard 1.0mm thickness stackup includes dedicated signal, ground, and power layers optimized for SATA III 6Gbps performance.
- Top Layer (Signal): Component placement, high-speed SATA differential pairs, and local power routing.
- Layer 2 (Ground Plane): Solid reference ground to minimize EMI and provide a return path for high-speed signals.
- Layer 3 (Power Plane): Dedicated power distribution for VCC, VCCQ, and core voltages.
- Bottom Layer (Signal): NAND Flash routing and secondary components.
If your design’s trace width and spacing fall short of strict impedance tolerances, don’t worry. We proactively optimize your original Gerber files to ensure your boards perform exactly as intended — adjusting trace geometry, dielectric thickness, and copper weight for optimal manufacturing stability.
Technical Capability & Specifications
| Parameter | Specification | Advanced Capabilities |
| Layer Count | 4Layer | 2-32L(Mass); 2-64L(Sample) |
| Base Material | Fr-4.0 S1000-2M Tg180 | SY, NY,TUC,ZY,EMC,KB,ITEQ, Rogers, Megtron , Nelco,Isola |
| Board Thickness | 1.0mm | 0.2-6.4mm(Mass);0.15-20mm(Sample) |
| Panel Size | 122.75*82mm/4 | 800*600mm(Mass);1050*610(Sample) |
| Copper Thickness | Outer: 1 OZ Inner: 1 OZ | Outer: 1/3-12 OZ Inner: 1/4-12 OZ |
| Min Drill Size | 0.2mm | 0.15mm(Mass);0.127mm(Sample) |
| Min Trace Width/Spacing | 3/3mil | 2.5/2.5mil(1OZ) 2/2mil(HOZ) |
| Min BGA Pad | 0.3mm | 0.15mm |
| Surface Finish | ENIG1-2“ | OSP,ENIG,HASL,Electric Hard Gold, ENIG+OSP,ENEPIG,mmersion Silver & Tin |
| Solder Mask Color | Matte Black | Green, Blue,Black,White,Yellow,Red,Pruple, Matte Green,Matte Blue,Matte Black |
| Impedance Control | ±10% (50/85/100Ω) | ±5% (Strict Tolerance) |
| Min Routing Tolerance | ±0.15mm | ±0.75mm |
| Quality Standard | IPC-Class 2,RoHS | IPC-Class 3,UL,Rohs,IATF16949,GJB |
| PCB Type | Multilayer | HDI,Multilayer,Rigid-Flex,High Frequency,High Speed,Hybrids & Mixed Dielectrics |
Engineered for High-Speed Storage Performance
A 4-layer PCB stackup is the industry-standard sweet spot for SATA III (6Gbps) SSDs, offering an ideal balance between manufacturing cost-efficiency and robust electromagnetic interference (EMI) shielding. Our premium 4-layer SATA SSD PCBs are fully optimized for leading controller architectures—including SMI, Phison, and Marvell—ensuring seamless compatibility and high-speed data transmission with 3D TLC/QLC NAND Flash memory.
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Optimized Signal Integrity
Our standard Signal-Ground-Power-Signal layout provides a solid reference ground plane. This design minimizes cross-talk, controls impedance mismatch, and ensures an ultra-low noise floor for high-frequency data tracks at 6Gbps.
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Advanced Thermal Management
To prevent thermal throttling during continuous heavy read/write workloads, we implement dense arrays of thermal vias directly beneath the SSD controller and Power Management IC (PMIC) for maximum heat dissipation.
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Precision Impedance Control
Strict 50Ω (single-ended), 85Ω (differential), and 100Ω (differential) impedance control with ±5% strict tolerance available. Every batch ships with a dedicated Polar Instruments impedance testing report.
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Premium Material Selection
Standard FR-4.0 S1000-2M with Tg180 for excellent thermal stability. Also available in Rogers, Megtron, Nelco, and Isola for high-frequency and mixed-dielectric applications.
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ENIG Surface Finish
Electroless Nickel Immersion Gold provides a perfectly flat surface for fine-pitch BGA components — critical for SSD controllers and NAND Flash packages. Superior oxidation resistance ensures long shelf life.
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Precision Impedance Control
Every board undergoes 100% Automated Optical Inspection (AOI) and Flying Probe / Fixture E-Test. Controlled impedance testing reports are included with every shipment — zero compromises on quality.
Applications of 4-Layer SATA SSD PCBs
Our high-reliability storage PCBs are widely deployed across various storage form factors and market segments worldwide.
💻 2.5-Inch Consumer SSDs
Cost-effective designs optimized for standard laptop and desktop upgrades. Supports high-volume production with consistent quality for retail and OEM channels.
🏭 Industrial Storage Modules
Enhanced thermal resistance for rugged computing, automotive data logging, and military applications. Built to withstand extreme temperatures and vibration environments.
📱 Embedded Systems
mSATA and customized small-form-factor storage for IoT gateways, POS terminals, and embedded computing platforms where space and reliability are critical.
Our Quality Guarantee for Storage PCBs
SATA III operates at 6Gbps — even minor manufacturing defects can cause data corruption. We implement rigorous testing protocols to ensure every board meets the highest standards.
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100% AOI & E-Test
Automated Optical Inspection and Flying Probe / Fixture Testing for all layers. No board ships without passing full electrical testing.
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Controlled Impedance Test
A dedicated Polar Instruments impedance testing report is provided with every batch, guaranteeing signal integrity compliance.
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International Certifications
Fully certified to ISO 9001:2015, ISO 14001, UL (E305905), and RoHS standards. IPC-Class 3 available on request for mission-critical applications.
Our SATA SSD PCB designs comply with SATA-IO specifications and IPC manufacturing standards. These SATA SSD PCB boards undergo full electrical testing to ensure signal integrity and storage reliability.
Frequently Asked Questions
Q1: Why use a 4-layer PCB instead of a 2-layer PCB for a SATA SSD?
A: SATA III operates at a high frequency of 6 Gbps. A 2-layer board cannot provide the required solid reference ground plane, leading to massive EMI, signal degradation, and data loss. A 4-layer PCB provides dedicated ground and power layers to ensure stable signal integrity.
Q2: What surface finish is best for a 4-Layer SATA SSD PCB?
A: ENIG (Electroless Nickel Immersion Gold) is highly recommended. It provides a perfectly flat surface for fine-pitch BGA components (like Flash and controllers) and offers excellent oxidation resistance for storage devices.
Q3: Do you support reverse engineering or custom PCB layout from a schematic?
A: Yes, we provide full ODM and OEM services. If you have the SSD controller schematic or an existing sample, our engineering team can design the 4-layer PCB layout for you.
Ready to start your 4-Layer SATA SSD PCB project?
Upload your Gerber files and get an engineered review within 24 hours.