{"id":37289,"date":"2026-10-14T15:32:27","date_gmt":"2026-10-14T07:32:27","guid":{"rendered":"https:\/\/www.bestpcbs.com\/blog\/?p=37289"},"modified":"2026-10-14T15:32:55","modified_gmt":"2026-10-14T07:32:55","slug":"1080-glass-cloth","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/","title":{"rendered":"1080 Glass Cloth: Thickness, Prepreg and Thin PCB Stackups"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#Key_Takeaways\" >Key Takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#What_Is_1080_Fiberglass_Cloth\" >What Is 1080 Fiberglass Cloth?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#What_Are_the_Dimensions_and_Weight_of_1080_Glass_Cloth\" >What Are the Dimensions and Weight of 1080 Glass Cloth?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#Why_Is_1080_Used_in_Thin_PCB_Stackups\" >Why Is 1080 Used in Thin PCB Stackups?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#What_Determines_1080_Prepreg_Thickness\" >What Determines 1080 Prepreg Thickness?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#Should_a_PCB_Use_One_or_Two_Plies_of_1080\" >Should a PCB Use One or Two Plies of 1080?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#What_Is_the_1080_Prepreg_Dielectric_Constant\" >What Is the 1080 Prepreg Dielectric Constant?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#How_Does_1080_Differ_from_2116\" >How Does 1080 Differ from 2116?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#What_Manufacturing_Problems_Need_Attention_with_Thin_1080_Layers\" >What Manufacturing Problems Need Attention with Thin 1080 Layers?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#FAQ_About_1080_Glass_Cloth\" >FAQ About 1080 Glass Cloth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/#How_Can_EBest_Circuit_Help_with_Thin_PCB_Materials\" >How Can EBest Circuit Help with Thin PCB Materials?<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"yzp-no-index\"><\/div>\n<p><a href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/10\/1080-glass-cloth\/\">1080 Glass Cloth<\/a> is a lightweight, plain-woven glass reinforcement used in electronic laminates and PCB prepregs. Published supplier examples weigh about 47\u201349 g\/m\u00b2, with dry-fabric thickness around 0.05\u20130.06 mm. Its thin construction helps engineers build closely spaced copper layers without using a heavier glass fabric. However, a PCB does not use the dry-cloth dimension as its finished insulation thickness.<\/p>\n\n\n\n<p>The resin grade, resin content, number of plies and lamination conditions determine the actual dielectric build. Selecting 1080 therefore means choosing a complete prepreg construction, not simply requesting the thinnest available fabric.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2026\/10\/1080-glass-cloth-hero.jpg\" alt=\"Fine 1080 glass cloth reinforcement beside an exploded thin multilayer PCB stack\"\/><\/figure>\n\n\n\n<div style=\"max-width: 600px; margin: 24px auto;\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Takeaways\"><\/span>Key Takeaways<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1080 is a glass-fabric construction used to reinforce resin-based PCB dielectric layers.<\/li>\n\n\n\n<li>Representative dry-fabric data are approximately 47\u201349 g\/m\u00b2 and 0.05\u20130.06 mm; supplier specifications and measurement conditions matter.<\/li>\n\n\n\n<li><strong>1080 cloth and 1080 prepreg are different materials.<\/strong> Prepreg includes resin that bonds the PCB layers during lamination.<\/li>\n\n\n\n<li>Thin prepreg can reduce layer spacing, but sufficient resin must remain to fill etched copper features and maintain insulation.<\/li>\n\n\n\n<li>Dielectric constant belongs to the glass-and-resin construction, not the \u201c1080\u201d designation alone.<\/li>\n\n\n\n<li>One or two plies must be selected against the actual stackup. Verify the finished build with appropriate dimensional, microsection and electrical checks.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_1080_Fiberglass_Cloth\"><\/span>What Is 1080 Fiberglass Cloth?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1080 fiberglass cloth is a lightweight plain-weave fabric made from fine glass yarns, with warp and fill yarns crossing at right angles.<\/p>\n\n\n\n<p>Electronic-grade versions provide reinforcement for the resin between PCB copper layers. The glass supports dimensional stability; the cured resin binds the structure and fills the spaces around the yarns and copper features.<\/p>\n\n\n\n<p>At <a href=\"https:\/\/www.bestpcbs.com\/\">EBest Circuit<\/a>, we support <a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\">FR-4 PCB fabrication<\/a>, including multilayer and thin-board projects. We review the material construction alongside the board thickness and electrical requirements, rather than treating \u201c1080\u201d as a complete material order specification.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2026\/10\/1080-fabric-prepreg.jpg\" alt=\"1080 fiberglass weave and separate samples of dry fabric and resin-impregnated prepreg\"\/><\/figure>\n\n\n\n<div style=\"max-width: 600px; margin: 24px auto;\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_the_Dimensions_and_Weight_of_1080_Glass_Cloth\"><\/span>What Are the Dimensions and Weight of 1080 Glass Cloth?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A representative 1080 construction has 60 warp yarns and 47 fill yarns per inch, with dry-fabric weight close to 49 g\/m\u00b2 and thickness near 0.06 mm.<\/p>\n\n\n\n<div class=\"wp-block-table\">\n<table>\n<thead>\n<tr>\n<th>Property<\/th>\n<th>JPS Style 1080 data<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Glass type<\/td>\n<td>E-glass<\/td>\n<\/tr>\n<tr>\n<td>Weave<\/td>\n<td>Plain<\/td>\n<\/tr>\n<tr>\n<td>Warp yarn<\/td>\n<td>ECD 450 1\/0<\/td>\n<\/tr>\n<tr>\n<td>Fill yarn<\/td>\n<td>ECD 450 1\/0<\/td>\n<\/tr>\n<tr>\n<td>Warp count<\/td>\n<td>60\/inch<\/td>\n<\/tr>\n<tr>\n<td>Fill count<\/td>\n<td>47\/inch<\/td>\n<\/tr>\n<tr>\n<td>Dry fabric weight<\/td>\n<td>49 g\/m\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Fabric thickness<\/td>\n<td>2.2 mil; 0.06 mm as rounded in the source<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\n\n<p>JPS describes these as typical greige values unless otherwise noted. Greige means fabric before subsequent finishing. Other suppliers publish different nominal values: Fulltech lists 47 \u00b1 2 g\/m\u00b2, while Yaosheng lists 48 \u00b1 3 g\/m\u00b2 and 0.053 mm. These examples explain why a controlled specification should identify its supplier and material condition.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Is_1080_Used_in_Thin_PCB_Stackups\"><\/span>Why Is 1080 Used in Thin PCB Stackups?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1080 is used when a stackup needs relatively thin reinforced dielectric layers between copper layers.<\/p>\n\n\n\n<p>Reducing dielectric spacing can help meet a thin-board target or achieve a required impedance with a particular trace width. The benefit is geometric: a thinner glass reinforcement leaves more options for the dielectric build. It does not automatically improve signal loss or thermal reliability.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thin multilayer boards:<\/strong> reduce the contribution of individual dielectric layers to total thickness.<\/li>\n\n\n\n<li><strong>Closely coupled layers:<\/strong> establish the required signal-to-reference-plane spacing.<\/li>\n\n\n\n<li><strong>Selected HDI constructions:<\/strong> fit thin reinforced layers where the material, via geometry and lamination process are compatible.<\/li>\n<\/ul>\n\n\n\n<p>Some HDI designs use other fine glass styles or non-glass-reinforced build-up films. The required microvia structure and material system decide which option fits; 1080 is not mandatory for HDI.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Determines_1080_Prepreg_Thickness\"><\/span>What Determines 1080 Prepreg Thickness?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1080 prepreg thickness is determined by the resin-containing construction, while its finished laminated thickness also depends on resin flow and copper coverage.<\/p>\n\n\n\n<p>Isola\u2019s 370HR prepreg table provides these examples:<\/p>\n\n\n\n<div class=\"wp-block-table\">\n<table>\n<thead>\n<tr>\n<th>Glass style<\/th>\n<th>Resin content<\/th>\n<th>Listed thickness<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1080<\/td>\n<td>61%<\/td>\n<td>0.070 mm<\/td>\n<\/tr>\n<tr>\n<td>1080<\/td>\n<td>66%<\/td>\n<td>0.076 mm<\/td>\n<\/tr>\n<tr>\n<td>1080<\/td>\n<td>68%<\/td>\n<td>0.081 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\n\n<p>Use these as named material examples, not as a thickness range guaranteed for every 1080 prepreg material. A finished stackup must account for the actual resin system and lamination process.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2026\/10\/1080-prepreg-thickness.jpg\" alt=\"Three Isola 370HR 1080 construction examples showing resin content and listed prepreg thickness\"\/><\/figure>\n\n\n\n<div style=\"max-width: 600px; margin: 24px auto;\"><\/div>\n\n\n\n<p>When reviewing a drawing, distinguish three measurements: dry cloth thickness, the supplier\u2019s prepreg construction thickness, and the dielectric spacing measured in the finished board. They answer different questions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Should_a_PCB_Use_One_or_Two_Plies_of_1080\"><\/span>Should a PCB Use One or Two Plies of 1080?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Use one or two plies according to the required dielectric spacing and resin volume; neither choice is universally correct.<\/p>\n\n\n\n<p>A single ply may fit a thin spacing target when the selected construction provides adequate fill and insulation. Two plies can provide a different resin and reinforcement build, but they also change thickness and material distribution.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Start with the copper-to-copper dielectric target, not sheet count alone.<\/li>\n\n\n\n<li>Review the thickness and area of copper that has been etched away.<\/li>\n\n\n\n<li>Check the resin available from the proposed prepreg construction.<\/li>\n\n\n\n<li>Confirm the final build through the fabricator\u2019s stackup calculation and qualification data.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2026\/10\/1080-one-two-plies.jpg\" alt=\"Conceptual comparison of one glass ply and two glass plies within PCB dielectric layers\"\/><\/figure>\n\n\n\n<div style=\"max-width: 600px; margin: 24px auto;\"><\/div>\n\n\n\n<p>For example, doubling a listed 0.076 mm sheet value gives 0.152 mm arithmetically. That calculation alone does not prove a 0.152 mm finished spacing over an etched inner layer, because resin moves during pressing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_the_1080_Prepreg_Dielectric_Constant\"><\/span>What Is the 1080 Prepreg Dielectric Constant?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There is no single 1080 prepreg dielectric constant: Dk changes with resin formulation, resin content, frequency and test method.<\/p>\n\n\n\n<p>The same glass style can be used in conventional FR-4, high-Tg and other laminate formulations. Their electrical data are not interchangeable. For controlled impedance, specify the actual material grade and construction, then use the appropriate design data for the operating frequency.<\/p>\n\n\n\n<p>Local glass-weave effects matter too. A trace over glass-rich regions encounters a different dielectric environment from a trace over resin-rich gaps. Differential pairs can see unequal propagation delay when that imbalance persists along their routes. Spread glass, trace orientation and routing choices can reduce the problem, but must be assessed for the specific channel.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2026\/10\/1080-glass-weave-signals.jpg\" alt=\"Conceptual trace paths over glass-rich and resin-rich regions, with a spread-glass comparison\"\/><\/figure>\n\n\n\n<div style=\"max-width: 600px; margin: 24px auto;\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_1080_Differ_from_2116\"><\/span>How Does 1080 Differ from 2116?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1080 uses a lighter, thinner reinforcement than 2116, so it is often considered for smaller dielectric spacing; 2116 contributes more glass per sheet.<\/p>\n\n\n\n<p>Yaosheng\u2019s published nominal examples are 0.053 mm and 48 g\/m\u00b2 for 1080, compared with 0.094 mm and 105 g\/m\u00b2 for 2116. These are dry-fabric values. They do not mean that every 1080 prepreg is thinner than every possible 2116-based finished construction.<\/p>\n\n\n\n<p>A substitution changes the glass-to-resin balance and may change impedance, resin fill and dimensional behavior. Keep the approved resin grade and stackup targets visible when evaluating either style. Our <a href=\"https:\/\/www.bestpcbs.com\/blog\/2026\/09\/prepreg\/\">prepreg overview<\/a> explains how reinforcement and resin work together.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Manufacturing_Problems_Need_Attention_with_Thin_1080_Layers\"><\/span>What Manufacturing Problems Need Attention with Thin 1080 Layers?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Resin starvation, dielectric-thickness variation and handling damage deserve particular attention when thin 1080-based layers are used.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Resin starvation:<\/strong> etched copper gaps can consume more resin than the chosen construction supplies, leaving inadequate fill.<\/li>\n\n\n\n<li><strong>Thickness variation:<\/strong> resin flow and uneven copper distribution can change spacing locally.<\/li>\n\n\n\n<li><strong>Handling damage:<\/strong> creased, contaminated or damaged prepreg should not be hidden inside the stackup.<\/li>\n\n\n\n<li><strong>Misregistration or distortion:<\/strong> material movement and an unbalanced build can affect layer alignment and board flatness.<\/li>\n<\/ul>\n\n\n\n<p>Useful checks include material identification, microsection inspection, dielectric-thickness measurement, finished-board flatness and electrical continuity\/isolation testing. Controlled-impedance boards also need the agreed coupon measurements. The acceptance limits should come from the approved drawing and applicable product requirements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ_About_1080_Glass_Cloth\"><\/span>FAQ About 1080 Glass Cloth<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Is 1080 glass cloth already coated with PCB resin?<\/strong><\/p>\n\n\n\n<p>Not necessarily. Dry cloth is reinforcement. Prepreg is the resin-impregnated, partially cured material used for bonding layers.<\/p>\n\n\n\n<p><strong>Does 1080 mean the fabric is 1.080 mm thick?<\/strong><\/p>\n\n\n\n<p>No. 1080 is a fabric-style designation, not a thickness measurement.<\/p>\n\n\n\n<p><strong>Can 1080 make a finished PCB flexible?<\/strong><\/p>\n\n\n\n<p>No. A thin glass cloth may drape before curing, but the completed board\u2019s flexibility depends on its entire material construction. A rigid FR-4 board does not become an FPC simply by using 1080.<\/p>\n\n\n\n<p><strong>Can 1080 be used with lead-free assembly?<\/strong><\/p>\n\n\n\n<p>Yes, when the chosen laminate and prepreg resin system is qualified for the required assembly profile. The glass-style number alone does not establish reflow suitability.<\/p>\n\n\n\n<p><strong>Is 1080 always the lowest-cost choice for a thin board?<\/strong><\/p>\n\n\n\n<p>No. Total fabrication cost also depends on ply count, material availability, copper features, lamination steps and yield. A thinner fabric does not guarantee a cheaper finished PCB.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Can_EBest_Circuit_Help_with_Thin_PCB_Materials\"><\/span>How Can EBest Circuit Help with Thin PCB Materials?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>We can review the proposed 1080 construction against your board thickness, dielectric spacing and fabrication requirements, then support PCB production and <a href=\"https:\/\/www.bestpcbs.com\/products\/pcba.htm\">PCBA services<\/a>.<\/p>\n\n\n\n<p>For a thin-board design with uncertain layer spacing or resin fill, contact <a href=\"mailto:sales@bestpcbs.com\">sales@bestpcbs.com<\/a>. Our engineering review can help turn a glass-style note into a defined, manufacturable stackup.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Explore 1080 Glass Cloth specifications, prepreg thickness and dielectric behavior, with practical guidance for thin PCB stackups and resin-fill control.<\/p>\n","protected":false},"author":623,"featured_media":37284,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[175,5789,16],"tags":[8831,8830,8833,8834,8832],"class_list":["post-37289","post","type-post","status-publish","format-standard","hentry","category-best-pcb","category-pcb-design","category-pcb-technology","tag-1080-fiberglass-cloth","tag-1080-glass-cloth","tag-1080-prepreg-dielectric-constant","tag-1080-prepreg-material","tag-1080-prepreg-thickness"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 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