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ISO9001 ISO13485
ISO14001

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IATF
16949

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IPC-A-610H International
Certification

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Fully Automated
AOI Inspection

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ul
highly integrated pcb for 5g ev and autonomous driving systems

Our Rigid PCB Board
Capabilities

Our rigid PCB manufacturing capabilities are built to support scalable production across single-sided boards, power-dense multilayers, and precision HDI stack-ups. From trace resolution to copper plating and surface finish control, we deliver production-level consistency across every rigid PCB order.

We build rigid PCBs from 1 to 64 layers using symmetrical and HDI stackups with via-in-pad, staggered build-ups, or buried cores.

Each rigid PCB board is fabricated using rigid FR4 or high Tg substrate materials such as S1000H and IT180.

We maintain interlayer registration within ±25 μm and dielectric thickness tolerance to ±10%, using vacuum lamination with prepreg-based base material calibrated to match copper layer distribution.

These rigid printed circuit boards suit dense multilayer PCBs with high interconnect complexity.

SpecificationDetails
MaterialsFR4, High TG FR4, Halogen Free Material, CEM-3, Rogers HF Material
Min. Contour Tolerance±0.04mm
Layer Counts1–64 Layers
Min. Finished Diameter of PTH Hole0.08mm
Finished Copper ThicknessUp to 1000 μm
Max. Board Thickness / Hole Ratio40:1
Finished Board Thickness0.1–12mm
Min. Solder Mask Bridge3mil (Min. SMT Pad Space 8mil)
Min. Line/Track Width1.8mil
Min. Legend (Silkscreen) Track Width4mil
Min. Drilling Slot Size0.5mm
Surface TreatmentLeaded HASL, Lead Free HASL, Immersion Gold, OSP, Immersion Tin, Immersion Silver, etc.
Solder Mask ColorGreen, Black, Blue, White, Yellow, and Matt, etc.
Legend/Silkscreen ColorBlack, White, Yellow, and others
Other TechnologyGold Finger, Peelable Mask, Non-across Blind/Buried Vias, Characteristic Impedance Control
Solder Mask Hardness6H
Wrap and Twist≤0.5%
Flammability94V-0

We support minimum trace/space widths of 1.8 mil and minimum mechanical drill holes of 0.08 mm with a 4 mil annular ring tolerance.

This allows high-density circuit routing and compact pad arrays for rigid PCBs used in automotive control systems, embedded computing, and advanced power conversion.

Each conductive layer is patterned using LDI and etched with ±10% trace width control. This process enables compact, impedance-sensitive PCB designs across flexible and rigid circuit applications.

We manufacture rigid circuit boards with copper weights ranging from 0.33 to 28 oz per layer, supporting power applications and thermal performance in high-current builds.

Electroplated copper is deposited under 20 to 30 ASF current density and leveled to maintain ±10% thickness uniformity across the panel area.

Conductive layers are verified via cross-section during rigid PCB fabrication to meet Class 3 plating requirements.

We support finished board thicknesses from 0.1 mm to 12 mm, including builds for portable consumer electronics, rigid-flex transition zones, and thick, stiffened boards used in industrial power devices.

Panel thickness uniformity is maintained to ±10%, and bow and twist are controlled under 0.5% post-reflow.

Rigid and flexible stack-ups are supported for hybrid flex PCBs and rigid-flex PCBs with embedded copper planes or stiffeners.

We utilize certified PCB materials, including FR4, halogen-free, and high Tg substrates such as S1000H and IT180, with Tg values ranging from 135 °C to 180 °C and Td values exceeding 340 °C.

These substrate materials allow boards to survive lead-free solder profiles and continuous high-temperature operation.

Each rigid PCB undergoes pre-bake cycles to remove moisture before PCB assembly and reflow.

We provide a full range of surface finishes, including ENIG, OSP, Immersion Silver, Immersion Tin, HASL, and Lead-Free HASL.

All finishes meet RoHS and IPC requirements and are compatible with solder mask layers in high-speed, fine-pitch designs.

Surface treatment is selected based on PCB fabrication goals and printed circuit board performance needs.

Our solder mask layers are applied in green, black, white, blue, red, or yellow using LPI materials with high thermal resistance.

Mask coverage is maintained at 15 to 30 μm thickness over all pads and traces. Single boards or full production panels receive screen-printed epoxy legend in white, black, or yellow, with print resolution up to 150 dpi for text and fiducial marks.

We support V-score panelization, breakaway tabs, routing, and scoring angles from 30° to 60°. Board outline accuracy is controlled to ±0.04 mm with CNC profiling and router bit diameters as small as 0.6 mm.

Each rigid PCB board is panelized to maximize fabrication yield and ensure edge clearance per IPC-2221. These features support WellPCB’s single-sided rigid PCB builds and allow seamless integration with flex tails or overmolded edge connectors.

Why Choose WellPCB for Your Rigid PCB Boards?

WellPCB is a factory-direct manufacturer offering Class 3 rigid PCB production, in-house assembly, and engineering-level file review. Our process control, certified materials, and fast build cycles give you precision and consistency at every stage.

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Factory-Owned Rigid PCB Production

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Certified to Class 3 Performance Standards

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Fast Turnaround on Prototypes and Volume Builds

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Integrated Sourcing and Assembly

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Material Flexibility for Specialized Builds

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Engineering Review of Design Files

What Types of Rigid PCBs
do we offer?

We offer six rigid PCB types: single-sided, double-sided, multilayer, high Tg, rigid-flex, and metal-backed. Each type is built for a specific function, material requirement, or thermal condition, with defined copper weights, stackups, and supported layer counts.

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Single-Sided Rigid PCBs

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Double-Sided Rigid PCBs

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Multilayer Rigid PCBs

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High Tg Rigid PCBs

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Rigid-Flex PCBs

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Metal-Backed Rigid PCBs

What is a Rigid PCB?

A rigid PCB is a printed circuit board built on a hard, non-bendable substrate, such as rigid FR4, CEM-3, or halogen-free laminate. Each board includes one or more copper layers laminated to the substrate material using heat and adhesive, with finished thicknesses ranging from 0.1 mm to 12 mm.

Standard constructions include single-sided, double-sided, and multilayer PCBs, with stack-ups designed for fixed mounting and dimensional retention. These rigid circuit boards are used when the final assembly requires tight layer registration, consistent pad spacing, and stable circuit performance over time.

What is the Layer Structure of a Rigid PCB?

The layer structure of a rigid PCB includes a dielectric substrate, one or more copper layers, a prepreg bonding layer, an outer solder mask, and a printed silkscreen. These layers are compressed into a fixed stack during lamination to form a mechanically rigid and electrically functional board.

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Support for PCB Design and Manufacturability

copper layer

Copper Layer

soldering and silkscreen

Solder Mask

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Silkscreen

When Should You Use a Rigid PCB?

Rigid PCBs should be used when the application requires mechanical stability, tight component alignment, or cost-optimized high-volume production. Board selection depends on both product form factor and the specific performance or manufacturing advantages of rigid constructions.

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When Product Size and Shape Require Stability

cost

When Application Cost Targets Must Be Met

lead times

When Shorter Lead Times are Required

high component

High Component Density

How are your Rigid PCBs Manufactured?

WellPCB manufactures rigid PCBs through a controlled in-house process covering lamination, drilling, imaging, plating, and surface finishing. All production follows IPC-6012 Class 2 or Class 3 criteria with traceable tolerances on copper thickness, layer alignment, and drill registration.

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1. Design Review

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2. Process Planning

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3. Material Preparation

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4. Inner Layer Imaging and Etching

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5. Lamination

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6. Drilling

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7. Desmear

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8. Copper Plating

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9. Outer Layer Imaging

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10. Solder Mask Application

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11. Surface Finish

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12. Final Testing

How to Order Your Rigid PCB
in 5 Easy Steps

submit design

Submit Your PCB Design

Upload your Gerber files or use our easy online PCB design tool to create your board layout. Make sure your files are complete and correctly formatted to ensure smooth processing and production accuracy.

specifications

Select Your PCB Specifications

Customize your order by choosing the technical specifications—number of layers, board dimensions, thickness, copper weight, solder mask color, surface finish, and more. Our intuitive interface helps you configure everything based on your project’s needs.

instant quote

Get an Instant Quote

Once your design and specs are in place, you'll receive a transparent, instant quote. Pricing updates in real time as you modify options, so you can adjust your selections to match your budget before placing the order.

payment

Confirm Order & Make Payment

Review your entire order for accuracy, including file previews and selected specs. After confirmation, proceed to secure checkout and choose your preferred payment method. You’ll receive an email confirmation with order details.

production and delivery

Production & Delivery

Your PCB moves into production immediately. We’ll keep you updated throughout the manufacturing process. Once completed, your boards are carefully packed and shipped to your door, with tracking information provided for your convenience.

What Industries Use Rigid PCBs?

Rigid PCBs are used in automotive, aerospace, medical, industrial, and consumer electronics where the design requires 4 to 64 layers, 0.08 mm drill accuracy, 0.33 to 28 oz copper, Class 3 solder joints, and consistent board thickness under thermal and mechanical stress.

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Automotive Electronics

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Consumer Electronics

Medical equipment and devices

Medical Devices

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Industrial Controls

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Aerospace and Defense

WellPCB is trusted by millions of
businesses and innovators.

Why choose a Rigid PCB Manufacturer?

WellPCB stands out among USA PCB manufacturers by delivering superior quality, advanced solutions, and unmatched reliability. With years of experience serving global markets, WellPCB has earned a reputation as one of the top PCB manufacturers in the USA.

WellPCB specializes in multilayer PCBs for advanced electronic applications. You can order these boards with $100 off using our special offer, providing high complexity at competitive rates for demanding projects.

team member shao

Hommer Zhao

Founder and Chief Editor – Hommer Zhao

Welcome! I’m Hommer Zhao, the founder and Chief Editor of WellPCB. With years of experience in the PCB industry, I’m committed to making sure our content is both accurate and helpful. We’re proud to serve a growing community of over 4,000 customers worldwide, and our goal is to provide you with the best resources and support. Your satisfaction is our top priority, and we’re here to help you every step of the way!

team member jessie

Jesse Holland

Technical Manager – Jesse Holland

Hi, I’m Jesse Holland, an Engineer and Technical Manager at WellPCB. With years of experience in PCB design and engineering, I’m here to ensure that every project we work on meets the highest technical standards. I lead our team, focusing on precision and innovation, collaborating closely with clients to provide tailored solutions and expert guidance. Whether you’re facing a complex design challenge or need advice on technical aspects, I’m here to ensure your project is a success from start to finish.

team member nathan

Nathan Jensen

Purchasing Manager – Nathan Jensen

Hi, I’m Nathan Jenson, the Purchasing Manager at WellPCB. I’m responsible for sourcing the best materials and components to ensure our products meet the highest quality standards. With my extensive experience in procurement, I work closely with suppliers to secure reliable and cost-effective solutions while maintaining strong relationships to support our operations. I aim to ensure every project runs smoothly by providing the resources needed to deliver on time and to your satisfaction.

team member emma

Emma

Sales Manager – Emma

Hey, I am Emma, sales manager at WellPCB. I studied electronic science and technology at university and have served customers for PCB and PCB Assembly service for several years.

I enjoy communicating with customers and our technicians to solve problems, and customers always say, "It's great to have you onboard".

It is my pleasure and honour to be helpful. Contact me now, and you'll know.

team member bella and cassiel

Bella and Cassiel

Sales Representatives – Bella and Cassiel

We’re Bella and Cassiel, your dedicated sales representatives at WellPCB. With our extensive knowledge of the PCB industry, we’re here to provide exceptional service and support. We take the time to understand your unique needs and are always ready to offer tailored solutions and advice. Whether you need product recommendations, assistance with your orders, or simply have a question, we’re here to ensure your experience is smooth and seamless at every step.

team member mandy and wendy

Mandy and Wendy

Sales Representatives – Mandy and Wendy

We’re Mandy and Wendy, your friendly sales representatives at WellPCB. Passionate about helping our customers, we bring a wealth of experience in the PCB industry to provide you with the best solutions and service. We take pride in building strong relationships with our clients, understanding their specific needs, and offering personalised support to ensure their satisfaction. Whether you’re looking for advice, product information, or assistance with any part of your order, we’re here to make your experience as smooth and efficient as possible.

Our Team

Our skilled engineers and technicians bring expertise and precision to every PCB assembly project. Committed to quality, efficiency, and innovation, our team ensures every order meets the highest UL, IPC, ROHS & REACH standards, delivering reliable solutions tailored to your needs.

  • Founder and Chief Editor – Hommer Zhao
  • Technical Manager – Jesse Holland
  • Purchasing Manager – Nathan Jensen
  • Sales Manager – Emma
  • Sales Representatives – Bella and Cassiel
  • Sales Representatives – Mandy and Wendy

    Rigid PCB Case Studies

    rigid pcb for automotive steering wheel controller

    Case Study

    This project involves the manufacture of a high-durability controller PCB for use in automotive steering wheel modules. The board utilizes FR4 material and carbon ink printing technology to provide variable resistance input. It is designed for long-term use with over 1 million actuation cycles, supporting reliable tactile control for infotainment, cruise control, and other smart steering functions.

    rf 35 4 layer all ptfe high frequency pcb

    Case Study

    This PCB project features a 4-layer all-PTFE-based structure using Taconic RF-35 materials, designed specifically for high-frequency RF and microwave applications. The board's structure—PTFE + ceramic + fiberglass laminate—delivers low signal loss, excellent thermal stability, and reliable impedance control. Press-fit via technology is used to ensure a solder-free, durable connection in high-reliability environments.

    highly integrated pcb for 5g, ev, and autonomous driving systems

    Case Study

    This PCB project represents a high-density, high-reliability multilayer design, engineered for next-generation electronics including 5G telecom infrastructure, new energy vehicles, and autonomous driving systems. The board features ultra-fine line/space, tight inner-layer spacing, and precisely controlled hole plating, enabling high-speed signal integrity and component miniaturization.

    Client Feedback On Our Rigid PCBs

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    star rating 1

    As an R&D manager, I have had an outstanding experience working with WELL-PCB. For many years, our company has entrusted them with the production, assembly, and programming of the boards developed in our R&D unit, and they have consistently exceeded our expectations.

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    Hamid Reza Moshayedi

    R&D Manager

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    star rating 1

    Their work is very impressively perfect. Today, when they check our company PCB board after assemble. They found a fake short point which many engineers has never found in the past years. But that is just designed so. The PCB board quality is excellent. Their service is also excellent.

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    MikeZ

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    star rating 1

    My friend introduced WellPCB to me, the first try, a little look forward to. I ordered a 47*72 10ps PCB, and I can’t wait to receive my PCB. So I used expedited service and received my PCB in three days. I tested and soldered the PCB, Quality is really good, silkscreen, plating also great.

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    Warren Cliton

    Rigid PCB FAQs

    Rigid PCBs are built entirely on a solid FR4 or high Tg laminate and remain flat after fabrication. Rigid-flex PCBs combine rigid sections with flexible polyimide layers, allowing dynamic bending or folding during installation.

    Rigid boards are ideal for static assemblies with fixed mounting, while rigid-flex designs eliminate connectors between moving parts, reduce weight, and support 3D enclosures.

    We support rigid PCB builds down to 0.1 mm finished thickness, using thin-core FR4 and low-flow prepregs for compact or high-density applications. Thickness tolerance is controlled to ±2.5%, with dimensional warpage held under 0.5%.

    Yes, we support designs with differential copper thicknesses on inner and outer layers, allowing signal layers to use 0.5 oz while power planes are plated up to 28 oz.

    Mixed-weight builds require adjusted lamination pressure and resin flow control to prevent layer distortion.

    We maintain dimensional control through balanced stackups, controlled press cycles, and core/prepreg material pairing. For boards larger than 450 × 600 mm, we limit layer count, copper asymmetry, and expansion coefficients to prevent bow and twist beyond 0.5%, as measured post-reflow.