Name: Component Substrate PCB
Brand: PCB Printed Circuit Board and PCBA manufacturing
Rating: 5 (1 reviews)

Component Substrate PCB

Product Model: Component Substrate PCB

Material: CC-HL820WDI

PCB Layers: 2 Layers

PCB Thickness: 0.3mm

Solder Mask Ink: PSR-4000 WT03

Surface Treatment: Hard Gold

Min. Aperture: 0.25mm

Min. Line Width: 75μm

Min. Line Spacing: 75μm

Application: Electronic Components Substrate

Description
Data Sheet

Component substrate PCBs rely on specialized base materials that form the foundation of both semiconductor component fabrication and printed circuit board manufacturing. Semiconductor-grade substrates include silicon, gallium arsenide, and silicon-garnet epitaxial materials. Ceramic substrates, primarily composed of high-purity alumina, are produced through high-pressure molding, high-temperature sintering, and precision cutting/polishing, serving as the core material for thick-film and thin-film circuit manufacturing. Copper-clad laminate (CCL), the standard substrate for printed circuit boards, not only provides mechanical support for electronic components but also enables reliable electrical interconnection and insulation between devices.

Core Functions & Material Classification of Packaging Substrates

As a critical component of electronic packaging, the packaging substrate acts as an essential bridge between semiconductor chips and external circuits. It fulfills four primary roles:

Facilitates current and signal transmission between the chip and external systems
Provides mechanical protection and structural support for the delicate chip
Serves as the primary thermal dissipation path for heat generated by the chip
Enables spatial transition between the chip's fine-pitch interconnects and external circuit board interfaces

Based on material composition, packaging substrates are categorized into three main types: metal substrates, ceramic substrates, and organic substrates.

Metal Substrates: Technical Characteristics & Applications

Metal substrates are metal-based copper-clad laminates composed of a metal sheet, insulating dielectric layer, and copper (or aluminum) foil. They are widely used as support materials and heat sinks for electronic components and integrated circuits due to their exceptional thermal dissipation, machinability, electromagnetic shielding, dimensional stability, magnetic properties, and versatility. These substrates play a vital role in power electronics (rectifiers, thyristors, power modules, laser diodes, microwave tubes) and microelectronics (computer CPUs, DSP chips) across microwave communications, industrial automation, power conversion, and aerospace applications.

Traditional metal packaging materials include Invar, Kovar, tungsten, molybdenum, aluminum, and copper, each with distinct trade-offs:

Invar (Fe-Co-Ni alloy) and Kovar (Fe-Ni alloy) offer excellent machinability and low thermal expansion coefficient (CTE) but suffer from poor thermal conductivity
Tungsten and molybdenum feature low CTE, significantly higher thermal conductivity than Invar/Kovar, and exceptional strength/hardness, making them widely used in power semiconductors
Aluminum and copper provide superior thermal and electrical conductivity but have excessively high CTE, leading to thermal stress issues under temperature cycling

While tungsten and molybdenum address thermal expansion challenges, their high cost, difficult machinability, poor solderability, and high density limit broader adoption. Modern metal substrates therefore adopt the composite structure of metal sheet + insulating dielectric + metal foil, balancing thermal performance, mechanical properties, and manufacturing feasibility.

Key Considerations for Component Substrate Material Selection

The selection of substrate materials for component substrate PCBs requires a comprehensive evaluation of multiple technical and economic factors:

Electrical performance: Critical parameters include insulation resistance, arc resistance, and dielectric breakdown strength, which determine the substrate's ability to withstand electrical stress
Mechanical properties: Shear strength and hardness directly impact the substrate's structural integrity and resistance to mechanical damage during manufacturing and operation
Economic factors: Material cost and overall PCB manufacturing cost must be balanced against performance requirements to ensure cost-effective production

Model: Component Substrate PCB

Material: CC-HL820WDI

Layers: 2layers

Thickness: 0.3mm

Resistance welding: PSR-4000 WT03

Surface treatment: Hard Gold

Minimum aperture: 0.25mm

Minimum line distance: 75um

Minimum line width: 75um

Application: Electronic components Substrate

Component Substrate PCB

Description

Data Sheet

Core Functions & Material Classification of Packaging Substrates

Metal Substrates: Technical Characteristics & Applications

Key Considerations for Component Substrate Material Selection