PCB Materials Database: Laminate Grades & Properties

Types of PCB Materials for Fabrication and Assembly

A good material database separates a dielectric technology from the way the material is supplied. For example, polyimide may describe a rigid high-temperature laminate, a flexible film or a prepreg, while a bonded microwave stackup may require an entirely different bonding system from its core.

Also in the material landscape: ceramics and IC package substrates

Alumina (Al₂O₃), aluminum nitride (AlN), silicon nitride (Si₃N₄), DBC and AMB structures are important for high-power and thermal designs. ABF build-up films and BT resins serve packaging applications. Those terms describe materials or construction methods, not yet qualified orderable grades. They are discussed here, but the searchable grade table does not invent commercial ceramic, ABF or BT model numbers without a traceable manufacturer record.

How to Choose PCB Materials for Manufacturing

Material choice is best treated as an engineering decision with measurable inputs. “Lowest Df,” “highest Tg,” or the best-known brand rarely determines the entire stackup by itself.

High-speed digital versus RF design

High-speed digital materials are often evaluated against an insertion-loss budget for a real routed channel. At higher data rates, copper foil roughness, resin and glass distribution, impedance geometry and via losses may be as influential as the published dielectric dissipation factor. Microwave designs also need frequency-specific dielectric performance, dimensional stability, antenna or transmission-line geometry and material fabrication guidance. A grade with favorable 10 GHz numbers is not guaranteed to produce lower system loss at every frequency.

Lead-free assembly is not simply a Tg comparison

Glass-transition temperature indicates a change in polymer behavior, whereas decomposition temperature, expansion before/after Tg, moisture response and repeated soldering exposure address different reliability mechanisms. One laminate with Tg 180°C may not be superior in every assembly process to another with a lower Tg; the complete thermal reliability dataset and the actual manufacturing profile matter.

Rigid-flex, thermal and hybrid constructions

Rigid-flex designs require scrutiny of adhesive systems, copper fatigue, coverlay geometry and bend service. Insulated-metal-substrate designs require electrical isolation alongside thermal performance. RF hybrid boards mixing PTFE and FR-4 require explicit review of lamination cycles, interlayer bonding, drilling, hole-wall conditioning and coefficient-of-expansion mismatch. Always check the fabricator's proven process for the exact materials and thicknesses.

PCB Material Datasheet Parameters: Dk, Df, Tg and Td

PCB Material Grades by Manufacturer

The index lists all manufacturer-referenced model names as text for search indexing; links in the interactive selector are marked as individual model page or broader manufacturer catalog. Unchecked PDF URLs are not made clickable.

This static index is the same model inventory used by the selector. Product-link specificity is available in the interactive results and CSV. Every grade remains subject to current availability and supplier confirmation.

Brand and series coverage

Use the brand menu above to see every eligible record from that manufacturer in this published dataset. We maintain the following distinctions rather than treating a corporate name as proof of particular grade availability.

PCB Fabrication & Assembly RFQ: Material Details to Provide

A product name alone leaves critical sourcing and fabrication details undecided. Before requesting a build, specify the complete manufacturer grade and suffix, dielectric stackup, core and prepreg construction, controlled impedance, layer count, finished thickness, copper weights and foil type, via/backdrill requirements, lead-free assembly profile, finish, acceptance standard, certification requirements, order volume and schedule. If an equivalent material is allowed, document who approves it and the limits it must meet.

For example, “Rogers board” can refer to radically different laminate and bonding systems. Likewise, a Panasonic MEGTRON core reference cannot automatically substitute for a related prepreg product. An engineer should approve changes using the complete electrical, thermal and mechanical requirements—not one attractive Dk number.