Lead the High-Speed Era: UGPCB’s 4-Layer DDR Substrate Board – The Superior Interconnect Solution for Your Core ICs
In the booming landscape of high-performance computing, intelligence artificielle, and next-generation communication devices, every advancement in Double Data Rate (DDR) technology places stricter demands on PCB substrates. Leveraging deep expertise in high-end PCB manufacturing et Substrat IC solutions, UGPCB introduces its premium 4-Layer DDR Substrate Board. Engineered with cutting-edge materials, it is specifically designed to carry high-performance memory chips (par ex., DDR4, DDR5, LPDDR), serving as your reliable partner in the pursuit of ultimate speed and stability.
Présentation du produit & Définition
UN 4-Layer DDR Substrate Board is a High-Density Interconnect (IDH) printed circuit board designed for packaging and connecting Dynamic Random-Access Memory (DDR) puces. It acts as a critical bridge between the chip and the mainboard, responsible for transmitting high-speed signals, distributing power, and providing stable mechanical support. Unlike standard PCB boards, DDR substrates demand near-perfect signal integrity, gestion thermique, and dimensional accuracy. This product from UGPCB is tailor-made to meet these stringent requirements.

Critical Design Considerations
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Precise Impedance Control: Paramount for DDR PCB design, it minimizes signal reflection and distortion during high-speed data transmission.
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Intégrité de puissance (PI): Dedicated power and ground plane design ensures clean, stable power delivery, reducing noise interference on critical signals.
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Intégrité du signal (ET): Optimized routing using microstrip and stripline structures minimizes crosstalk and delay, forming the foundation for stable performance post-Assemblage PCBA.
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Gestion thermique: The substrate material must exhibit excellent thermal properties to aid chip dissipation and ensure long-term reliability.
How It Works
The 4-Layer DDR Substrate connects the hundreds of micro-pins of a memory chip to the corresponding motherboard circuits via its precise internal layers. Its “sandwich” stack-up (Signal-Ground-Power-Signal) provides clear return paths for high-speed signals, effectively suppressing Electromagnetic Interference (EMI). The soft gold surface finish ensures a reliable, low-resistance solder joint with the chip’s solder balls (par ex., in BGA packages).
Applications principales & Classification
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Applications principales: Extensively used in servers, data center switches, high-end GPUs, AI accelerator cards, network storage devices, and any cutting-edge electronic product requiring high-speed, high-capacity memory.
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Classification:
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Par nombre de couches: Beyond standard 4-layer, designs can extend to 6, 8, or more layers based on complexity.
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Par matériau: Can be categorized into standard FR-4, Mid-Loss, and this product’s focus – Low-Loss material substrates.
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Matériels & Spécifications de performance
| Paramètre | Spécification | Performance Advantage |
|---|---|---|
| Core Material | Mitsubishi Gas Chemical HL832 | Industry-recognized, haute performance, low-loss (Low Df) laminate designed for high-speed digital circuits, significantly reducing signal transmission loss. |
| Nombre de couches | 4 Calques | Optimal “Signal-Ground-Power-Signal” stack-up, balancing design complexity, coût, et les performances. |
| Épaisseur finie | 0.25mm | Ultra-thin profile, conforming to compact chip packaging trends for integration into miniaturized devices. |
| Épaisseur du cuivre | 0.5once (17.5µm) | Standard starting weight, suitable for fine-line etching; can be plated up for higher current needs. |
| Couleur du masque de soudure | Vert (AUS308) | Provides excellent insulation protection and visual contrast for Optical Inspection (Zone d'intérêt) après Assemblage de circuits imprimés. |
| Finition de surface | Or doux (ACCEPTER) | Excellent surface planarity and low hardness, ensures superior compatibility with wire bonding or BGA solder balls for reliable connections. |
| Minimum Drilled Hole Size | 100µm | Supports high-density micro-via design for complex chip pinout interconnection. |
| Min.. Largeur de ligne/Espace | 50µm / 75µm | High-precision routing capability allows more high-speed lines in limited space, meeting high-density interconnect PCB design needs. |
Product Structure & Caractéristiques clés
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Structure: Typical 4-layer sequential lamination: Couche supérieure (Signal/Components) -> Inner Layer 1 (Solid Ground Plane) -> Inner Layer 2 (Solid Power Plane) -> Couche inférieure (Signal/Components). This structure offers optimal shielding for high-speed signals.
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Caractéristiques clés:
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Superior High-Speed Performance: HL832 low-loss material ensures excellent signal integrity for high-frequency DDR signals.
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High-Density Interconnect Capability: 100μm micro-vias and 50μm line width technology support advanced chip packaging.
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Haute fiabilité: ENIG surface finish offers excellent solderability and oxidation resistance for long-term stability.
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Ultra-Thin & Precise: 0.25mm overall thickness meets stringent space requirements in modern electronics.
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Precision Manufacturing Process
Notre Fabrication de PCB process adheres to the highest quality standards:
Material Prep → Inner Layer Imaging & Etching → Lamination & Drilling → Metallization & Plating → Outer Layer Imaging → Surface Finish (ACCEPTER) → Solder Mask Application → Profiling → Electrical Test & Inspection finale.
Each stage is supported by advanced inspection equipment (par ex., Zone d'intérêt, Test de sonde volante), ensuring every Substrat IC delivered is flawless.
Cas d'utilisation typiques
This 4-Layer DDR Substrate is the ideal choice for:
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Data Centers & Serveurs: Carrying CPU and memory modules for massive data processing.
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IA & Machine Learning Hardware: Memory subsystems in GPU, NPU accelerator cards.
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High-End Communication Equipment: High-speed memory units in 5G base stations and core network gear.
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Flagship Consumer Electronics: Main memory substrates in top-tier gaming consoles and laptops.
Why Choose UGPCB’s 4-Layer DDR Substrate?
We are more than a Fabricant de PCB; we are your solution provider for high-speed design challenges. With a dedicated PCB design support team, proven capabilities in multilayer PCB prototyping and mass production, and a deep understanding of signal integrity engineering, choosing UGPCB means gaining not just a high-quality substrate, but an accelerator for your product’s success.
Contact our expert team today for a project-specific quote and technical consultation. Power up your high-speed design with UGPCB!