{"id":116,"date":"2026-07-11T09:00:00","date_gmt":"2026-07-11T09:00:00","guid":{"rendered":"https:\/\/rlxsolutions.com\/blog\/?p=116"},"modified":"2026-09-28T18:54:06","modified_gmt":"2026-09-28T18:54:06","slug":"rigid-vs-flex-vs-rigid-flex-pcb-how-to-choose","status":"publish","type":"post","link":"https:\/\/rlxsolutions.com\/blog\/rigid-vs-flex-vs-rigid-flex-pcb-how-to-choose\/","title":{"rendered":"Rigid, Flex &#038; Rigid-Flex PCB: Differences, Uses &#038; Manufacturing"},"content":{"rendered":"<p>\n      Rigid, flex and rigid-flex PCBs solve different mechanical and electrical packaging problems.<br \/>\n      Rigid boards provide a fixed structure, flex circuits bend through constrained spaces, and<br \/>\n      rigid-flex combines both in one interconnected construction. <a href=\"https:\/\/rlxsolutions.com\/\">RLX Solutions<\/a>, a contract<br \/>\n      electronics manufacturer in Concord, Ontario, evaluates PCB architecture against the<br \/>\n      electrical, mechanical and manufacturing requirements of the design.\n    <\/p>\n<p>\n      The distinction matters long before fabrication. Changing from rigid to flex is not simply<br \/>\n      a substrate substitution. It changes conductor geometry, bend-zone layout, material behaviour,<br \/>\n      panel handling, assembly support and the way mechanical loads reach copper.\n    <\/p>\n<p>\n      Rigid-flex goes further. It replaces connectors or cable assemblies between rigid sections<br \/>\n      with integral flexible interconnects. That can reduce interconnect hardware and packaging<br \/>\n      volume, but it also makes the layer construction and manufacturing sequence more dependent<br \/>\n      on the mechanical design.\n    <\/p>\n<\/header>\n<section>\n<h2>Rigid vs Flex vs Rigid-Flex PCB at a Glance<\/h2>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Decision factor<\/th>\n<th scope=\"col\">Rigid PCB<\/th>\n<th scope=\"col\">Flex PCB<\/th>\n<th scope=\"col\">Rigid-flex PCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Mechanical form<\/th>\n<td>Fixed planar structure<\/td>\n<td>Bendable circuit<\/td>\n<td>Rigid sections joined by flexible sections<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Typical design reason<\/th>\n<td>Stable component mounting<\/td>\n<td>Space, motion or folded routing<\/td>\n<td>Integrated 3D electronic packaging<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Component placement<\/th>\n<td>Usually on rigid board area<\/td>\n<td>Possible, but local mechanical support matters<\/td>\n<td>Usually concentrated on rigid regions<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Interconnection<\/th>\n<td>Board traces plus connectors or cables where required<\/td>\n<td>Copper traces travel through the flex<\/td>\n<td>Flex layers connect rigid sections directly<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Bend behaviour<\/th>\n<td>Not intended to bend in service<\/td>\n<td>Can be static or dynamic depending on design<\/td>\n<td>Flex sections provide controlled movement or folding<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Stackup sensitivity<\/th>\n<td>Driven mainly by electrical and fabrication requirements<\/td>\n<td>Electrical plus mechanical-neutral-axis requirements<\/td>\n<td>Electrical, mechanical and lamination requirements interact<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Manufacturing impact<\/th>\n<td>Conventional rigid-board process flow<\/td>\n<td>Flexible-material handling and bend-zone control<\/td>\n<td>Multiple material regions and a more involved build sequence<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Design-change cost<\/th>\n<td>Often localized to the PCB<\/td>\n<td>Can affect bend geometry and enclosure fit<\/td>\n<td>Can affect rigid boards, flex geometry and layer construction together<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n      A rigid PCB is usually the simplest architecture when the enclosure can accommodate a flat<br \/>\n      board and conventional interconnects.\n    <\/p>\n<p>\n      Flex earns its place when the interconnect itself has to bend, fold, move through a hinge<br \/>\n      or fit around mechanical obstacles.\n    <\/p>\n<p>\n      Rigid-flex is most useful when separate rigid boards and their interconnecting cables would<br \/>\n      otherwise consume space, add connectors or complicate final assembly.\n    <\/p>\n<\/section>\n<section>\n<h2>The Structural Difference Changes How Copper Behaves<\/h2>\n<p>\n      Rigid PCB conductors are supported by a comparatively stiff laminate system. Flex conductors<br \/>\n      operate in a structure intended to deform, which makes strain distribution a first-order<br \/>\n      design variable.\n    <\/p>\n<p>\n      When a flex section bends, material on the outside of the bend stretches while material on<br \/>\n      the inside compresses. Somewhere between those surfaces is a neutral axis where longitudinal<br \/>\n      strain approaches zero. Copper positioned and routed with that behaviour in mind experiences<br \/>\n      less cyclic strain than copper placed poorly within the bend construction.\n    <\/p>\n<p>\n      That is why flex routing cannot be treated like ordinary rigid-board routing on a softer sheet.\n    <\/p>\n<p>\n      A trace crossing a bend zone at an angle, a sudden width transition, a via near the bend or<br \/>\n      a copper feature that locally stiffens the circuit can concentrate strain. The electrical<br \/>\n      drawing may still look correct, but the mechanical loading has changed.\n    <\/p>\n<p>\n      Rigid-flex adds another interface: the transition between a rigid section and the flexible<br \/>\n      section. That region needs controlled geometry because the stiffness changes abruptly.<br \/>\n      Mechanical load should not be concentrated at the same location as vulnerable copper<br \/>\n      transitions, holes or other local discontinuities.\n    <\/p>\n<\/section>\n<section>\n<h2>Use Rigid PCBs When Mechanical Stability Is an Asset<\/h2>\n<p>\n      A rigid circuit board remains the default choice for a large share of electronics because<br \/>\n      it gives components, solder joints and connectors a stable mechanical platform.\n    <\/p>\n<p>\n      It works well when the design can satisfy enclosure, connector and assembly requirements<br \/>\n      without requiring the PCB itself to bend.\n    <\/p>\n<p>\n      Rigid construction also leaves the designer with familiar fabrication variables such as<br \/>\n      layer count, copper weight, drill geometry, trace spacing, impedance structure and <a href=\"https:\/\/rlxsolutions.com\/blog\/enig-vs-hasl-vs-osp\/\">surface<br \/>\n      finish<\/a>. Those variables can still make a rigid board difficult to build, but the board does<br \/>\n      not need to perform a second job as a mechanical interconnect.\n    <\/p>\n<p>\n      Consider a hypothetical six-layer, 1.6 mm board carrying a ball grid array (BGA), power stages<br \/>\n      and board-to-wire connectors. If the enclosure gives the board enough planar area, keeping the<br \/>\n      design rigid avoids adding bend-zone rules and flexible-material interfaces simply to solve<br \/>\n      a packaging problem that does not exist.\n    <\/p>\n<p>\n      The more demanding question may instead be via architecture. A 0.20 mm finished through hole<br \/>\n      in a 1.6 mm board has an 8:1 thickness-to-hole relationship. Moving to much smaller drilled<br \/>\n      holes without changing board thickness pushes the fabrication process harder because plating<br \/>\n      must reach reliably through a deeper, narrower barrel.\n    <\/p>\n<p>\n      For dense BGA escape, microvias or via-in-pad may become relevant. Via-in-pad with plated-over<br \/>\n      fill uses resin fill, copper capping and planarization so the component pad remains a solderable<br \/>\n      surface rather than an open via cavity.\n    <\/p>\n<p>\n      That manufacturing decision is separate from whether the board needs to flex.\n    <\/p>\n<\/section>\n<section>\n<h2>Flex PCB Design Starts With the Bend, Not the Outline<\/h2>\n<p>\n      A flex circuit should be designed around its mechanical duty before traces are finalized.\n    <\/p>\n<p>\n      There are two fundamentally different conditions. A flex tail may bend once during installation<br \/>\n      and then remain stationary, or it may move repeatedly throughout the product&#8217;s operating life.<br \/>\n      Those two cases impose different fatigue demands even if their finished shapes appear identical.\n    <\/p>\n<p>\n      The bend zone should therefore be treated as functional geometry.\n    <\/p>\n<p>\n      Assume a hypothetical two-layer flex circuit passes through a 180-degree fold inside an enclosure.<br \/>\n      One design sends eight parallel traces directly across a 20 mm-long bend region with gradual width<br \/>\n      transitions. Another introduces vias and changes trace direction inside that same bend because the<br \/>\n      routing was completed before the mechanical fold was defined.\n    <\/p>\n<p>\n      Both may pass an initial electrical continuity test. The second geometry introduces more local<br \/>\n      stiffness changes and stress concentration points precisely where copper is being strained.\n    <\/p>\n<p>\n      The likely failure does not begin as an obvious open circuit. Repeated strain can initiate cracking<br \/>\n      in copper at a local high-stress location. Electrical resistance may become intermittent before the<br \/>\n      conductor separates completely, making the mechanical geometry part of electrical reliability.\n    <\/p>\n<p>\n      Component mass matters for the same reason. A connector or larger package mounted on an unsupported<br \/>\n      flexible area can load the copper and solder joints as the circuit moves. Mechanical support,<br \/>\n      stiffeners and component placement should therefore be resolved with the enclosure rather than<br \/>\n      after routing.\n    <\/p>\n<\/section>\n<section>\n<h2>Rigid-Flex Removes Interconnects but Adds Manufacturing Dependency<\/h2>\n<p>\n      Rigid-flex PCB construction combines rigid component-bearing sections with integral flexible<br \/>\n      interconnect regions.\n    <\/p>\n<p>\n      The benefit is architectural. Instead of using two rigid boards, two connectors and a separate<br \/>\n      cable between them, the designer can route the electrical connection through flex layers that<br \/>\n      continue between the rigid regions.\n    <\/p>\n<p>\n      That can simplify the finished assembly, especially where boards must sit at different angles<br \/>\n      or inside compact three-dimensional packaging.\n    <\/p>\n<p>\n      The trade-off is that formerly independent design decisions become linked. The position of one<br \/>\n      rigid section, the flex length between sections, layer usage, bend direction and assembly sequence<br \/>\n      now influence one another.\n    <\/p>\n<h3>Worked Example: Two 8-Layer Products, Different Cost Drivers<\/h3>\n<p>Consider two hypothetical eight-layer electronic assemblies.<\/p>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Factor<\/th>\n<th scope=\"col\">Board A<\/th>\n<th scope=\"col\">Board B<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Layer count<\/th>\n<td>8<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Architecture<\/th>\n<td>Single rigid PCB<\/td>\n<td>Two rigid regions joined by flex<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Inter-board connection<\/th>\n<td>External connector and cable<\/td>\n<td>Integral flexible interconnect<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Component areas<\/th>\n<td>One planar board<\/td>\n<td>Components concentrated on rigid sections<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Mechanical requirement<\/th>\n<td>Fixed installation<\/td>\n<td>Folded installation<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Build dependency<\/th>\n<td>Primarily rigid stackup and drilling<\/td>\n<td>Stackup plus rigid-to-flex transitions and flex geometry<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Assembly impact<\/th>\n<td>Separate cable mating operation<\/td>\n<td>Integrated board must be formed into final position<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n      Layer count alone therefore does not predict manufacturing effort.\n    <\/p>\n<p>\n      Board A may use complex drilling or controlled impedance, but its physical construction remains<br \/>\n      rigid. Board B has the same nominal layer count yet must create both rigid and flexible regions<br \/>\n      within a coordinated construction. Material transitions, lamination sequence, mechanical<br \/>\n      registration and flex handling become part of the manufacturing problem.\n    <\/p>\n<p>\n      The point is not that eight-layer rigid-flex always costs more by a fixed amount. It is that<br \/>\n      quoting by layer count misses the process steps that actually distinguish the builds.\n    <\/p>\n<\/section>\n<section>\n<h2>How Manufacturing Changes Across the Three Architectures<\/h2>\n<p>\n      Rigid, flex and rigid-flex all begin with an electrical interconnection requirement, but their<br \/>\n      manufacturing paths diverge once mechanical behaviour enters the design.\n    <\/p>\n<h3>Rigid PCB Manufacturing<\/h3>\n<p>\n      A rigid multilayer board is built by creating conductor patterns on individual layers, preparing<br \/>\n      inner-layer structures, laminating the stack, drilling holes, metallizing and plating those holes,<br \/>\n      imaging outer conductors and applying final protective and surface treatments.\n    <\/p>\n<p>\n      Drilling architecture can change that sequence substantially.\n    <\/p>\n<p>\n      A conventional plated through-hole passes through the finished stack. A buried via connects inner<br \/>\n      layers without reaching the outer surfaces. A blind via terminates within the stack. Microvias are<br \/>\n      laser-drilled features typically used where routing density demands smaller inter-layer connections.\n    <\/p>\n<p>\n      Blind and buried structures require the manufacturer to create and connect features before the<br \/>\n      entire board is fully laminated. That is why two boards with the same layer count can follow<br \/>\n      different process routes.\n    <\/p>\n<h3>Flex PCB Manufacturing<\/h3>\n<p>\n      Flex manufacturing must preserve circuit geometry while working with a construction intended to move.\n    <\/p>\n<p>\n      Material handling becomes more sensitive because thin flexible panels do not behave like rigid sheets<br \/>\n      during imaging, registration, drilling and plating. Coverlay or other flexible dielectric structures<br \/>\n      also perform the protective function that solder mask provides across much of a rigid board.\n    <\/p>\n<p>\n      Mechanical details remain inseparable from fabrication details. Bend-zone copper, transition geometry,<br \/>\n      stiffened areas and component locations all influence whether the fabricated circuit can tolerate<br \/>\n      installation and operation.\n    <\/p>\n<h3>Rigid-Flex Manufacturing<\/h3>\n<p>\n      Rigid-flex combines those process concerns and introduces selective construction.\n    <\/p>\n<p>\n      Some regions must become structurally rigid while others must remain free to bend. The build sequence<br \/>\n      must create the required electrical connections without trapping or damaging the flexible portions.\n    <\/p>\n<p>\n      This makes stackup documentation particularly important. Layer identity cannot be ambiguous when some<br \/>\n      conductors continue through flexible regions while other layers exist only within rigid sections.\n    <\/p>\n<p>\n      A designer who sends only electrical Gerbers without clearly communicating the intended layer<br \/>\n      construction leaves the fabricator to infer mechanical information that should have been controlled<br \/>\n      at design release.\n    <\/p>\n<\/section>\n<section>\n<h2>Via Architecture Can Decide Whether the Board Is Manufacturable<\/h2>\n<p>\n      Vias become more sensitive as routing density increases because they consume both vertical and<br \/>\n      horizontal routing resources.\n    <\/p>\n<p>\n      Through holes are efficient when space permits, but they occupy the entire thickness of a multilayer<br \/>\n      board even if the electrical connection only needs two nearby layers. Blind, buried and microvia<br \/>\n      structures can free routing channels, but they alter the fabrication sequence.\n    <\/p>\n<p>\n      For example, imagine a hypothetical 10-layer board.\n    <\/p>\n<p>\n      One version uses through vias only. Another needs Layer 1 to Layer 2 laser microvias, Layer 2 to<br \/>\n      Layer 3 microvias and a buried connection between Layer 3 and Layer 8 to escape a dense BGA field.\n    <\/p>\n<p>\n      Both are 10-layer PCBs. The second board requires a materially different interconnect strategy because<br \/>\n      the manufacturer must build those connections into the stack rather than drill every via after final<br \/>\n      lamination.\n    <\/p>\n<p>\n      Stacked microvias also place one small via directly above another. Staggered microvias offset the<br \/>\n      features laterally. Those geometries affect how loads move through the plated structure and how the<br \/>\n      layers are built.\n    <\/p>\n<p>\n      If a BGA uses via-in-pad, filling and capping are adjacent requirements. Leaving a via open in a<br \/>\n      solderable pad creates a path that can draw solder away from the intended joint. Filling, planarizing<br \/>\n      and capping the feature restores a continuous pad surface for assembly.\n    <\/p>\n<\/section>\n<section>\n<h2>Assembly Changes Once the Circuit Board Can Move<\/h2>\n<p>\n      Flexibility changes more than <a href=\"https:\/\/rlxsolutions.com\/blog\/pcb-manufacturing-guide\/\">bare-board fabrication<\/a>. It also changes how the assembled circuit is<br \/>\n      supported during component placement, soldering, inspection and final integration.\n    <\/p>\n<p>\n      Surface-mount assembly equipment expects controlled board position. A flexible area may therefore<br \/>\n      require temporary support or tooling so the populated regions remain stable during printing,<br \/>\n      placement and reflow.\n    <\/p>\n<p>\n      Inspection also needs to match the package types being assembled. Solder paste inspection (SPI)<br \/>\n      checks deposited paste before reflow. Automated optical inspection (AOI) checks visible post-reflow<br \/>\n      conditions. Packages such as BGAs, land grid arrays (LGAs) and quad flat no-lead (QFN) devices can<br \/>\n      require X-ray because critical joints are hidden beneath the package.\n    <\/p>\n<p>\n      That becomes especially relevant when a rigid-flex assembly eliminates detachable interconnects.<br \/>\n      Once the system is integrated, access for rework may be less convenient than it was with several<br \/>\n      independent rigid boards.\n    <\/p>\n<p>\n      Design for assembly should therefore consider how the finished geometry will be held, inspected,<br \/>\n      tested and repaired, not just how it fits inside the enclosure.\n    <\/p>\n<\/section>\n<section>\n<h2>Surface Finish Still Follows the Assembly Requirement<\/h2>\n<p>\n      Board flexibility does not determine surface finish by itself.\n    <\/p>\n<p>\n      The finish should instead match soldering, contact and packaging requirements. Common options across<br \/>\n      <a href=\"https:\/\/rlxsolutions.com\/pcb-manufacturing.html\">PCB manufacturing<\/a> include hot air solder levelling (HASL), electroless nickel immersion gold (ENIG),<br \/>\n      electroless nickel electroless palladium immersion gold (ENEPIG), immersion silver, immersion tin and<br \/>\n      organic solderability preservative (OSP).\n    <\/p>\n<p>\n      The manufacturing consequence appears at the interface between the bare board and assembly process.\n    <\/p>\n<p>\n      A fine-pitch surface-mount pad benefits from predictable planarity. A connector contact may impose<br \/>\n      different wear or mating requirements. A wire-bonding application creates another surface requirement.\n    <\/p>\n<p>\n      Choosing a board architecture first and blindly copying the finish from a previous project treats<br \/>\n      two separate engineering decisions as though they were one.\n    <\/p>\n<\/section>\n<section>\n<h2>Choose the Architecture From the Mechanical Constraint Backward<\/h2>\n<p>\n      Start with rigid unless the product gives you a specific reason not to.\n    <\/p>\n<p>\n      Choose a rigid PCB when the electronics fit on a stable planar structure and connectors or cables<br \/>\n      do not create an unacceptable packaging, reliability or assembly problem.\n    <\/p>\n<p>\n      Choose flex when the circuit itself needs to pass through a constrained path, fold during installation<br \/>\n      or accommodate controlled movement. Define bend regions and mechanical support before final routing.\n    <\/p>\n<p>\n      Choose rigid-flex when several rigid component regions need to occupy different planes and integrating<br \/>\n      their interconnection provides enough system value to justify a more dependent stackup and manufacturing<br \/>\n      sequence.\n    <\/p>\n<p>\n      The deciding calculation should be made at system level. A separate cable assembly has connectors,<br \/>\n      mating operations, space claims and possible service advantages. Rigid-flex removes some of those<br \/>\n      interfaces but combines more of the product into one manufactured structure.\n    <\/p>\n<p>\n      That trade should be made deliberately rather than reducing the decision to bare-board unit price.\n    <\/p>\n<\/section>\n<section>\n<h2>Send the Stackup With the Mechanical Intent<\/h2>\n<p>\n      A manufacturer needs enough information to distinguish electrical connectivity from physical<br \/>\n      construction. Fabrication data should therefore be accompanied by the intended stackup, drill<br \/>\n      information, impedance requirements and fabrication notes where relevant. Assembly projects also<br \/>\n      need the bill of materials, centroid data and assembly documentation.\n    <\/p>\n<p>\n      If you are preparing a rigid PCB or evaluating a more mechanically integrated architecture, RLX can<br \/>\n      review the manufacturable portions of the design as part of an <a href=\"https:\/\/rlxsolutions.com\/engineering-design.html\">engineer-reviewed DFM<\/a> process. Send the<br \/>\n      fabrication and assembly package with the mechanical requirements clearly identified so those<br \/>\n      constraints are visible before production decisions are locked.\n    <\/p>\n<\/section>\n<section>\n<h2>FAQ<\/h2>\n<h3>Is rigid-flex the same as connecting two rigid PCBs with a flex cable?<\/h3>\n<p>\n      No. A cable or separate flex circuit creates discrete interconnect interfaces between independently<br \/>\n      manufactured items. A rigid-flex PCB incorporates rigid and flexible regions into one circuit<br \/>\n      construction. The finished products can serve a similar packaging purpose, but their stackup,<br \/>\n      manufacturing sequence, assembly flow, repair strategy and connector count can be very different.\n    <\/p>\n<h3>Can components be mounted directly on a flex PCB?<\/h3>\n<p>\n      Yes, but the mechanical behaviour around the component matters. Packages, connectors and solder joints<br \/>\n      should not be placed where repeated bending transfers damaging strain into their terminations. Stiffened<br \/>\n      component areas and controlled transition geometry are commonly used so the local assembly behaves<br \/>\n      predictably while other regions remain flexible.\n    <\/p>\n<h3>Do flex circuits use the same routing rules as rigid PCBs?<\/h3>\n<p>\n      Not completely. Electrical constraints still apply, but a flex circuit adds mechanical strain to the<br \/>\n      routing problem. Trace direction through bends, width transitions, copper distribution, vias and nearby<br \/>\n      stiffened regions can all affect fatigue behaviour. The bend geometry should therefore be defined before<br \/>\n      routing is treated as finished.\n    <\/p>\n<h3>Are rigid-flex boards always better than connectors and cables?<\/h3>\n<p>\n      No. Rigid-flex can reduce separate interconnects and help fit electronics into compact three-dimensional<br \/>\n      spaces, but it also couples the mechanical design more tightly to the PCB stackup. Connectors and cable<br \/>\n      assemblies can offer modularity, replacement access and easier separation of subassemblies. The better<br \/>\n      architecture follows the product&#8217;s packaging, service and reliability requirements.\n    <\/p>\n<h3>What files should I send for a PCB manufacturing review?<\/h3>\n<p>\n      For fabrication, useful manufacturing files include Gerber RS-274X, ODB++ or IPC-2581 data with NC<br \/>\n      drill files, plus the stackup, impedance targets and fabrication notes where applicable. Assembly work<br \/>\n      also requires the bill of materials, pick-and-place or centroid file and assembly drawing so fabrication<br \/>\n      and component placement requirements can be reviewed together.\n    <\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Rigid, flex and rigid-flex PCBs solve different mechanical and electrical packaging problems. Rigid boards provide a fixed structure, flex circuits [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":192,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[18],"tags":[],"class_list":["post-116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-manufacturing"],"_links":{"self":[{"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/comments?post=116"}],"version-history":[{"count":4,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/116\/revisions"}],"predecessor-version":[{"id":193,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/116\/revisions\/193"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/media\/192"}],"wp:attachment":[{"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/media?parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/categories?post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rlxsolutions.com\/blog\/wp-json\/wp\/v2\/tags?post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}