{"id":2390,"date":"2026-05-06T09:48:45","date_gmt":"2026-05-06T09:48:45","guid":{"rendered":"https:\/\/toplinecircuit.com\/?p=2390"},"modified":"2026-05-07T03:21:23","modified_gmt":"2026-05-07T03:21:23","slug":"core-switch-router-and-nvme-storage-pcb-solutions","status":"publish","type":"post","link":"https:\/\/toplinecircuit.com\/zh\/core-switch-router-and-nvme-storage-pcb-solutions\/","title":{"rendered":"Core Switch, Router, and NVMe Storage PCB Solutions"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Against the backdrop of continuous upgrades to data centers and high-performance network infrastructure, core switches, routers, and NVMe storage devices are jointly driving the evolution of high-speed interconnect architectures towards higher bandwidth and lower latency. The PCBs of these devices are no longer just traditional signal bearer boards, but core physical platforms carrying 112G or even 224G PAM4 high-speed signals, requiring them to maintain signal integrity and system stability under extremely high frequency environments. Simultaneously, the explosive growth of data traffic has made long-distance link transmission, increased port density, and multi-channel concurrency the norm, placing more stringent demands on PCB layer stack-up structures, material selection, and process control. Breaking down the layer structure, key processes, and high-speed signal challenges helps to more systematically understand the design logic and technical priorities of PCBs for this type of high-end network equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"852\" height=\"548\" src=\"https:\/\/toplinecircuit.com\/wp-content\/uploads\/2026\/05\/image-4.png\" alt=\"Core Switch, Router, and NVMe Storage PCB Solutions\" class=\"wp-image-2400\" srcset=\"https:\/\/toplinecircuit.com\/wp-content\/uploads\/2026\/05\/image-4.png 852w, https:\/\/toplinecircuit.com\/wp-content\/uploads\/2026\/05\/image-4-300x193.png 300w, https:\/\/toplinecircuit.com\/wp-content\/uploads\/2026\/05\/image-4-768x494.png 768w\" sizes=\"(max-width: 852px) 100vw, 852px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Application Scenarios Concentrated in Core Network and High-Speed \u200bStorage Systems<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In modern data center architectures, these devices undertake critical data exchange and storage tasks.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Core switches and routers are responsible for large-scale data forwarding and network scheduling, placing extremely high demands on the high-speed backplane capabilities of their PCBs.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NVMe storage systems emphasize low latency and high throughput access capabilities, requiring PCBs to support multi-channel high-speed storage protocols.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The increasing speed of applications necessitates PCB designs focused on maximizing bandwidth and stable transmission capabilities.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Layer counts are concentrated in high-density designs ranging from 12 to 24 layers<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Structural design must balance high-speed signal and power integrity.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PCBs typically employ a 12-24 layer stack-up structure to support complex high-speed signal channels and multi-power distribution networks.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-layer design helps isolate signal and power layers, improving overall interference immunity.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This stack-up structure provides a stable physical foundation for high-speed links.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Back-drilling has become a crucial means of improving high-speed signal quality<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Structural interference needs to be effectively controlled during high-speed signal transmission.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Back-drilling reduces via studs, mitigating signal reflection and high-frequency loss.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In 112G\/224G PAM4 environments, back-drilling becomes a critical process for ensuring eye diagram quality.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This process significantly improves the stability and consistency of high-speed links.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>112G\/224G PAM4 and Crosstalk Suppression: Core Design Challenges<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In ultra-high-speed signal environments, signal integrity becomes a critical constraint.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PAM4 modulated signals are highly susceptible to noise and loss at 112G and 224G rates, requiring extremely high precision in routing.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multi-channel parallel transmission easily generates crosstalk, necessitating strict control over trace spacing and reference plane design.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Signal control capabilities in high-speed environments directly determine the upper limit of system performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Long-Link Loss Control: A Crucial Guarantee for Stable System Operation<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In large-scale data center interconnects, signal transmission distances increase significantly.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Long-link transmission leads to higher insertion loss, requiring compensation through low-loss materials and optimized cabling structures.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simultaneously, equalization and signal compensation designs are needed to maintain end-to-end signal quality.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Loss control capabilities determine the system&#8217;s reliability under high-load scenarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Comparison Table of Key Technologies for Core Switches \/ Routers \/ NVMe Storage PCBs<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Dimension<\/strong><strong><\/strong><\/td><td><strong>Core switch\/router PCB<\/strong><strong><\/strong><\/td><td><strong>NVMe storage PCB<\/strong><strong><\/strong><\/td><td><strong>Technical Focus<\/strong><strong><\/strong><\/td><\/tr><tr><td>Application Positioning<\/td><td>High-speed network forwarding and interconnection<\/td><td>High-speed storage access<\/td><td>Bandwidth and delay control<\/td><\/tr><tr><td>Layer Structure<\/td><td>16\u201324 floors<\/td><td>Layers 12\u201320<\/td><td>Signal and power separation<\/td><\/tr><tr><td>High-Speed \u200b\u200bSignals<\/td><td>112G\/224G PAM4<\/td><td>PCIe\/NVMe high-speed channels<\/td><td>Signal integrity<\/td><\/tr><tr><td>Process Requirements<\/td><td>Backplane design + back-drilling process<\/td><td>High-density, high-speed cabling<\/td><td>Reflection and loss control<\/td><\/tr><tr><td>Crosstalk Control<\/td><td>Multi-port parallel transmission<\/td><td>Multi-channel storage access<\/td><td>EMI and crosstalk suppression<\/td><\/tr><tr><td>Long-Link Performance<\/td><td>Long-distance transmission in data centers<\/td><td>Internal interconnects of storage arrays<\/td><td>Insertion loss optimization<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The PCB design of core switches, routers, and NVMe storage devices is continuously evolving towards ultra-high speed, high density, and high reliability. The core challenges lie in 112G\/224G PAM4 signal processing capabilities and stable transmission control in long-link environments. As data centers expand and network bandwidth continues to increase, PCBs not only need to support more complex wiring structures but also require multi-dimensional optimization in materials, processes, and electrical design. A systematic analysis of layer structure, key processes, and high-speed signal challenges provides a clearer understanding of the core value of this type of PCB in modern network and storage systems, and offers a clear reference direction for subsequent high-end interconnect designs.<\/p>","protected":false},"excerpt":{"rendered":"<p>Against the backdrop of continuous upgrades to data centers and high-performance network infrastructure, core switches, routers, and NVMe storage devices are jointly driving the evolution of high-speed interconnect architectures towards higher bandwidth and lower latency. The PCBs of these devices are no longer just traditional signal bearer boards, but core physical platforms carrying 112G or [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2400,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[32],"tags":[],"class_list":["post-2390","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server-pcb-board-solutions"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Core Switch, Router, and NVMe Storage PCB Solutions - Topline Circuit<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/toplinecircuit.com\/zh\/core-switch-router-and-nvme-storage-pcb-solutions\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Core Switch, Router, and NVMe Storage PCB Solutions - Topline Circuit\" \/>\n<meta property=\"og:description\" content=\"Against the backdrop of continuous upgrades to data centers and high-performance network infrastructure, core switches, routers, and NVMe storage devices are jointly driving the evolution of high-speed interconnect architectures towards higher bandwidth and lower latency. 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