{"id":5747,"date":"2026-11-03T08:29:56","date_gmt":"2026-11-03T08:29:56","guid":{"rendered":"https:\/\/flj-pcb.com\/?page_id=5747"},"modified":"2026-11-03T08:29:56","modified_gmt":"2026-11-03T08:29:56","slug":"halogen-free-pcb","status":"publish","type":"page","link":"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/halogen-free-pcb\/","title":{"rendered":"Halogen-Free PCB"},"content":{"rendered":"<div class=\"hf-page flj-page\" id=\"flj-content\"><section class=\"hf-hero\"><div class=\"container\"><nav aria-label=\"\uc774\ub3d9 \uacbd\ub85c\" class=\"hf-crumb\"><a href=\"https:\/\/flj-pcb.com\/ko\/\">\ud648<\/a><span>\/<\/span><a href=\"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/\">PCB Manufacturing<\/a><span>\/<\/span><span>Halogen-Free PCB<\/span><\/nav><div class=\"hf-title\"><p class=\"hf-kicker\">MATERIAL SELECTION \u00b7 CUSTOM FABRICATION<\/p><h1>Halogen-Free PCB<br\/>\uc81c\uc870<\/h1><\/div><div class=\"hf-hero-grid\"><div class=\"hf-product-stage\"><span class=\"hf-stage-tag\">THE MATERIAL BEHIND YOUR CIRCUIT<\/span><figure><img fetchpriority=\"high\" width=\"800\" height=\"600\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/Halogen-free-substrate.webp\" class=\"attachment-full size-full\" alt=\"Stack of green insulating laminate sheets on a white surface\" decoding=\"async\" loading=\"eager\" sizes=\"(max-width: 800px) calc(100vw - 40px), 600px\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/Halogen-free-substrate.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/Halogen-free-substrate-300x225.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/Halogen-free-substrate-768x576.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/Halogen-free-substrate-16x12.webp 16w\" \/><figcaption>Laminate-sheet reference \u00b7 material identity comes from the specification.<\/figcaption><\/figure><div class=\"hf-stage-base\"><span>Selected laminate &amp; prepreg<\/span><span>Prototype \u2192 production<\/span><\/div><\/div><div class=\"hf-hero-copy\"><p class=\"hf-lead\">Material choices for your product\u2019s halogen-free requirements.<\/p><p>FLJ manufactures halogen-free PCBs for prototypes and production, combining the selected laminate and prepreg with your copper layout, layer structure and finished-board features. From control circuits to demanding multilayers, material selection and fabrication work together to deliver the board your product needs.<\/p><a class=\"btn\" href=\"https:\/\/flj-pcb.com\/ko\/contact\/\">Get a Halogen-Free PCB Quote<\/a><a class=\"hf-jump\" href=\"#hf-materials\">Explore material options \u2193<\/a><\/div><\/div><\/div><\/section>\n<section class=\"hf-section hf-intro\"><div class=\"container hf-intro-grid\"><div><p class=\"hf-kicker\">A DIFFERENT FLAME-RETARDANT SYSTEM<\/p><h2>What changes<br\/>in a halogen-free PCB?<\/h2><\/div><div><p>A halogen-free PCB starts with an insulating material specified for restricted bromine and chlorine content. In a glass-reinforced laminate, copper still carries the circuit and the glass fabric still provides reinforcement. The main change is in the resin and flame-retardant formulation.<\/p><p>Non-halogen flame-retardant systems replace the brominated chemistry used in many conventional laminates. Phosphorus-containing formulations are one approach. Their effect on thermal behavior, moisture uptake and electrical loss depends on the complete material system. Halogen-free therefore describes a composition requirement, not one universal performance grade.<\/p><p>For product teams, this creates a practical choice: meet a material policy while selecting the thermal and electrical behavior the circuit needs. A halogen-free construction can also be flame-retardant; its UL 94 classification is a separate property of the selected material.<\/p><\/div><\/div><\/section>\n<section class=\"hf-section hf-materials\" id=\"hf-materials\"><div class=\"container\"><div class=\"hf-heading\"><p class=\"hf-kicker\">MATCH THE MATERIAL TO THE CIRCUIT<\/p><h2>Material options for your board<\/h2><\/div><p>Start with the circuit\u2019s duty. Thermal cycling and soldering exposure make resin stability and expansion important; longer signal paths make dielectric loss more significant. These needs can coexist with a halogen-free requirement.<\/p><div aria-label=\"Halogen-free material comparison\" class=\"hf-table\" role=\"region\" tabindex=\"0\"><table><thead><tr><th scope=\"col\">Material example<\/th><th scope=\"col\">Selection focus<\/th><th scope=\"col\">Typical Tg, DSC<\/th><th scope=\"col\">Official information<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">ITEQ IT-170GRA1<\/th><td>Mid-loss multilayers for industrial computing and communication electronics<\/td><td>180\u00b0C<\/td><td><a href=\"https:\/\/www.iteqcorp.com\/wp-content\/uploads\/2026\/05\/W-CTE-1002-31B_Data-sheet-IT-170GRA1.pdf\" target=\"_blank\" rel=\"noopener\">Data sheet \u2014 PDF<\/a><\/td><\/tr><tr><th scope=\"row\">ITEQ IT-170GT<\/th><td>Mid-loss circuitry with thermal-reliability and expansion requirements<\/td><td>185\u00b0C<\/td><td><a href=\"https:\/\/www.iteqcorp.com\/wp-content\/uploads\/2026\/05\/W-CTE-1002-53B_Data-sheet-IT-170GT.pdf\" target=\"_blank\" rel=\"noopener\">Data sheet \u2014 PDF<\/a><\/td><\/tr><tr><th scope=\"row\">Isola IS550H<\/th><td>High-power and high-voltage electronics with demanding thermal exposure<\/td><td>200\u00b0C<\/td><td><a href=\"https:\/\/www.isola-group.com\/pcb-laminates-prepreg\/is550h-laminate-prepreg\/\" target=\"_blank\" rel=\"noopener\">Material data<\/a><\/td><\/tr><\/tbody><\/table><\/div><p>These are named material examples, not interchangeable substitutes. Tg describes the resin transition, not the finished board\u2019s continuous operating temperature. The selected core, prepreg and copper construction define the material combination in the quotation.<\/p><div class=\"hf-electrical\"><div><span class=\"hf-small-label\">ELECTRICAL PROPERTIES<\/span><h3>Read the value.<br\/>Keep the condition.<\/h3><\/div><div><p>At 10 GHz, ITEQ\u2019s data sheets list Dk \/ Df of 3.8 \/ 0.009 for IT-170GRA1 at 50% resin content, and 3.9 \/ 0.0095 for IT-170GT at 55% resin content. Both use IPC-TM-650 2.5.5.13 for these measurements. Resin content belongs with the values: changing the glass-and-resin construction changes the dielectric, even within a named grade.<\/p><p>For a communication board, the mid-loss examples put signal behavior alongside the halogen-free requirement. For power electronics, IS550H offers a different balance centered on thermal reliability. The comparison starts with that duty, then the actual core and prepreg construction. Our <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/fr4-pcb\/\">FR-4 material overview<\/a> explains the wider selection factors; the <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/isola-pcb\/\">Isola range<\/a> provides additional named material options.<\/p><\/div><\/div><\/div><\/section>\n<section class=\"hf-section hf-manufacturing\"><div class=\"container\"><div class=\"hf-heading\"><p class=\"hf-kicker\">FROM LAMINATE TO FINISHED CIRCUIT<\/p><h2>Manufacturing with<br\/>the selected laminate<\/h2><\/div><div class=\"hf-process\"><article><div class=\"hf-process-label\"><span>01<\/span><h3>Forming and bonding the multilayer circuit<\/h3><\/div><div><p>Inner copper layers are imaged, etched and inspected before pressing. Prepreg then fills the spaces around those copper features and cures to bond the stack. Resin quantity, flow and the press cycle determine whether the construction fills properly and reaches its intended dielectric spacing.<\/p><p>The cure cycle follows the selected resin system. For example, Isola describes IS550H as a higher-viscosity material than most halogenated FR-4 grades and recommends a corresponding lamination approach. FLJ sets heat rise, pressure and cure for the material and board construction, with moisture-controlled handling of the bonding sheets before layup.<\/p><\/div><\/article><article><div class=\"hf-process-label\"><span>02<\/span><h3>Making the plated connections<\/h3><\/div><div><p>Drilling exposes the inner copper layers at each interconnecting hole. Tool condition and chip removal influence the surface left behind. Hole-wall preparation removes resin residue from the connection surfaces, and copper deposition establishes the conductive path between layers.<\/p><p>FLJ matches hole-wall preparation to the resin and hole geometry. The aim is to expose the intended innerlayer copper and prepare the insulating wall for metallization. A clean, well-prepared interface supports the plated connection through later soldering and thermal exposure. The <a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/data-sheets\/is550h-laminate-prepreg_Processing_Guide_new.pdf\" target=\"_blank\" rel=\"noopener\">IS550H processing guide<\/a> illustrates how drilling and desmear are specified for one material system.<\/p><\/div><\/article><article><div class=\"hf-process-label\"><span>03<\/span><h3>Completing the board<\/h3><\/div><div><p>Outer-layer imaging and plating establish the remaining conductors. Solder mask protects the selected circuit areas, the surface finish prepares exposed contacts for their intended connection, and profiling gives each board its final outline. FLJ supplies individual boards or assembly panels with the specified copper and finish.<\/p><p>Copper-pattern inspection and electrical testing check the fabricated circuit. Microsections examine internal features such as hole copper and bonded layers; impedance measurements assess the specified transmission-line construction. Material documentation and board inspection complement each other.<\/p><\/div><\/article><\/div><\/div><\/section>\n<section class=\"hf-section hf-distinctions\"><div class=\"container\"><div class=\"hf-heading\"><p class=\"hf-kicker\">THREE TERMS. DIFFERENT SCOPES.<\/p><h2>Halogen-free, RoHS<br\/>and lead-free<\/h2><\/div><div class=\"hf-term-grid\"><article><span class=\"hf-small-label\">MATERIAL COMPOSITION<\/span><h3>Halogen-free<\/h3><p>Specified limits for bromine and chlorine in the declared material or product scope.<\/p><\/article><article><span class=\"hf-small-label\">RESTRICTED SUBSTANCES<\/span><h3><a href=\"https:\/\/environment.ec.europa.eu\/topics\/waste-and-recycling\/rohs-directive_en\" target=\"_blank\" rel=\"noopener\">RoHS<\/a><\/h3><p>Restrictions on listed substances in electrical and electronic equipment, including certain brominated flame retardants. It is not a blanket ban on all halogens.<\/p><\/article><article><span class=\"hf-small-label\">LEAD &amp; SOLDERING<\/span><h3>Lead-free<\/h3><p>Lead content in the relevant material or soldering system and the associated assembly process. It does not establish bromine or chlorine content.<\/p><\/article><\/div><div class=\"hf-scope\"><h3>From laminate<br\/>to the supplied board<\/h3><p>A laminate declaration describes that laminate. A bare-board declaration also needs to account for the other materials included in its scope, such as solder mask and marking ink. For an assembled board, components and assembly materials extend that scope further. Keeping these levels clear gives purchasing and engineering teams a meaningful material statement.<\/p><\/div><\/div><\/section>\n<section class=\"hf-section hf-applications\"><div class=\"container\"><div class=\"hf-heading\"><p class=\"hf-kicker\">MATERIAL CHOICES IN ELECTRONICS<\/p><h2>Applications and custom PCB supply<\/h2><\/div><div class=\"hf-app-grid\"><article><figure><img loading=\"lazy\" width=\"600\" height=\"450\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Thick-copper-PCBs-for-industrial-control-applications.webp\" class=\"attachment-full size-full\" alt=\"Hand holding a thick circular multilayer board with visible layered edges\" decoding=\"async\" sizes=\"auto, (max-width: 800px) calc(100vw - 40px), 600px\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Thick-copper-PCBs-for-industrial-control-applications.webp 600w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Thick-copper-PCBs-for-industrial-control-applications-300x225.webp 300w\" \/><figcaption>Multilayer board construction reference<\/figcaption><\/figure><div class=\"hf-app-copy\"><h3>Control and power electronics<\/h3><p>Industrial control boards combine signal processing, connectors and power circuitry. A halogen-free grade can meet the product\u2019s material policy while thermal stability, insulation and copper construction serve the circuit itself. For higher-power or high-voltage electronics, grades such as IS550H place additional emphasis on thermal reliability.<\/p><\/div><\/article><article><figure><img loading=\"lazy\" width=\"900\" height=\"571\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/06\/What-Is-a-Truly-Halogen-Free-PCB.webp\" class=\"attachment-full size-full\" alt=\"Storage-device circuit boards with controllers, connectors and surface-mounted components\" decoding=\"async\" sizes=\"auto, (max-width: 800px) calc(100vw - 40px), 600px\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/06\/What-Is-a-Truly-Halogen-Free-PCB.webp 900w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/06\/What-Is-a-Truly-Halogen-Free-PCB-300x190.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/06\/What-Is-a-Truly-Halogen-Free-PCB-768x487.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/06\/What-Is-a-Truly-Halogen-Free-PCB-18x12.webp 18w\" \/><figcaption>Computing and storage hardware reference<\/figcaption><\/figure><div class=\"hf-app-copy\"><h3>Communication and computing hardware<\/h3><p>Communication and computing boards bring a different selection focus: dielectric loss and the manufactured signal geometry. The ITEQ examples above show how a halogen-free requirement can be combined with a mid-loss material choice for routers, backplanes and computing hardware.<\/p><\/div><\/article><\/div><p class=\"hf-photo-note\">Photographs illustrate materials and hardware; appearance does not identify halogen content, laminate grade or a customer project.<\/p><div class=\"hf-supply\"><div><p class=\"hf-kicker\">PROTOTYPE TO FINISHED SUPPLY<\/p><h3>Your material choice.<br\/>A board ready for the next build.<\/h3><a class=\"btn\" href=\"https:\/\/flj-pcb.com\/ko\/contact\/\">\uacac\uc801 \uc694\uccad\ud558\uae30<\/a><\/div><div><p>FLJ produces sample quantities and production batches using the selected construction. Bare boards can continue into <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-assembly\/\">PCB \uc870\ub9bd<\/a>, with component sourcing, placement and soldering included in the supplied build. Send the board files, quantity and material designation\u2014or the thermal, electrical and halogen-free requirements\u2014to request a quotation.<\/p><\/div><\/div><\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"<p>Home\/PCB Manufacturing\/Halogen-Free PCB MATERIAL SELECTION \u00b7 CUSTOM FABRICATION Halogen-Free PCBManufacturing THE MATERIAL BEHIND YOUR CIRCUIT Laminate-sheet reference \u00b7 material identity [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1898,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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