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What is Comparative Tracking Index (CTI) of the PCB base material?

PCB Materials

Editorial Team - PCB Directory

Jun 14, 2020

Comparative Tracking Index (CTI)is the extent to which the insulating material of the PCB can resist the unwanted current to flow between traces on the board.Itis a measure of the ability of the PCB substrate to withstand any breakdown between two tracks on the PCB surface. Itis used to assess the proportionate resistance of the PCB base material and helps calculate the high-voltage isolation valu...read more

What are PCB Laminates?

PCB Materials

Editorial Team - PCB Directory

Apr 26, 2023

Printed circuit boards (PCBs) are an essential component in electronic devices, ranging from simple devices like calculators to complex systems like computers and smartphones. A PCB is a flat board made of a non-conductive substrate material with conductive pathways and components attached to it. One of the critical components of a PCB is the PCB laminate.A Printed Circuit Board finds its genesis ...read more

What is the Core of a PCB?

Editorial Team - PCB Directory

Feb 16, 2022

The core of a PCB is the substrate of the PCB with copper traces on one side or both sides. An example would be an FR-4 substrate with copper foil above and below it. The FR4 substrate provides high electrical insulation between the copper layers of the core. The PCB core can be thought of as a solid foundation for the printed circuit board.Multiple cores are used to create a multi-layer PCB. The ...read more

What is FR-4 Material?

PCB Materials

Editorial Team - PCB Directory

Jan 23, 2024

FR4, a ubiquitous term in the realm of electronics, refers to a grade of flame-resistant material that holds a paramount position in the manufacturing processes of electronic gadgets. In this article, we will explore the fundamental qualities that make it indispensable, its numerous advantages that have solidified its presence, and candidly discuss its limitations and drawbacks.Understanding FR4FR...read more

What is FR-5 in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 22, 2024

Flame retardant substrate materials serve as vital components in mitigating fire hazards and ensuring the durability of electronic devices. Among these materials, FR-5, known as Flame Retardant 5, emerges as a groundbreaking solution, showcasing advancements in fire resistance, mechanical properties, and thermal stability.Composition: FR-5 is a specialized substrate material renowned for its excep...read more

What is FR-2 in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 22, 2024

Flame Retardant 2 or FR-2 is a substrate material made from paper impregnated with a phenolic resin, which provides it with flame-retardant properties. It refers to a type of substrate material specifically engineered to inhibit the spread of flames and reduce fire hazards. It is commonly used in electronic applications where fire safety is critical, such as circuit boards and electrical component...read more

What is FR-3 in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 22, 2024

In the ever-evolving landscape of electronics manufacturing, the quest for safety and reliability remains paramount. Flame retardant substrate materials play a pivotal role in this pursuit, serving as a crucial line of defense against fire hazards and bolstering the durability of electronic devices. Among these materials, FR-3, or Flame Retardant 3, emerges as a beacon of innovation, heralding adv...read more

What is BT-Epoxy in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 21, 2024

BT-Epoxy, abbreviated from Bismaleimide-Triazine resin, is a thermoset resin employed in PCB fabrication. It stands out as a significant thermoset resin, offering a unique blend of properties and versatile applications. Also known as Bisphenol-T epoxy resin, it comprises bisphenol-T (BT) monomers and epichlorohydrin. Serving as the cross-linking agent, epichlorohydrin catalyzes the polymerization ...read more

What is the Importance of Polyethylene in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 21, 2024

Polyethylene, also known as polythene, stands as one of the most widely utilized plastics globally, characterized by its linear structure and additional polymer composition. This versatile material finds extensive use in packaging, including plastic bags, bottles, films, containers, and geomembranes, with an annual production exceeding 100 million tonnes. While predominantly thermoplastic, certain...read more

What is the Importance of Polyimide in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 22, 2024

Polyimides are polymers made up of high-performing imide monomers. Within this category of polymers lies a broad array of materials, encompassing both natural and synthetic origins. Natural polyimides, such as those found in silk and wool, exemplify the diversity of this group. However, when it comes to manufacturing PCBs, the polyimides utilized for the board bases are predominantly synthetically...read more

What are the Advantages of Teflon PCBs?

Editorial Team - PCB Directory

Apr 13, 2023

With a rapidly evolving Electronics industry, quick improvements are essential to any Business’s success. PCB manufacturing involves a wide array of processes, from material selection and brisk designing to the design's testing and rapid prototyping. Hence, it is vital to utilize the best material available for the consumer's demand.In this article, we will learn about Teflon, a fluo...read more

What is CEM-2 in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 16, 2024

In advanced materials engineering, Composite Epoxy Material-2 (CEM-2) emerges as a revolutionary substance, poised to redefine the standards of performance and versatility in substrate materials. With a composition blending epoxy resin with fiberglass reinforcement, CEM-2 offers a unique amalgamation of strength, durability, and adaptability. This article embarks on a comprehensive exploration of ...read more

What is CEM-3 in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 16, 2024

Composite Epoxy Material-3 (CEM-3)PCBs, which are copper-clad laminates crafted from a blend of paper and epoxy resin, have found widespread application in consumer electronics owing to their affordability and satisfactory properties. While CEM3 may not boast the advanced attributes of high-performance FR4 materials, it still offers distinct advantages that render it suitable for a variety of prin...read more

What is Cyanate Ester Resin in PCB Manufacturing?

PCB Materials

Editorial Team - PCB Directory

May 21, 2024

Cyanate ester resin stands out among thermosetting resins for its remarkable properties and versatile applications across various industries. With numerous ether bonds connecting benzene-ring and triazine ring structures, cyanate ester resin exhibits exceptional impact resistance, surpassing that of conventional thermosetting resins. The intrinsic characteristics of cyanate ester resin, such as it...read more

Thermoset and Thermoplastic PCB Materials

Editorial Team - PCB Directory

Jun 14, 2020

High-temperature processing comes into play during the manufacturing of the high-frequency PCB boards. It starts with the lamination of prepreg on the dielectric substrate followed by adding the circuit layer. Heat-processing is the primary source to combine all these layers together to form a well-defined board. Thermoplastic and Thermoset materials are generally used for the dielectric layers in...read more

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