High TG Flex PCB for Energy Storage

Commonly Used Rigid PCBs and Rigid PCB Materials

PCBs are widely used in all kinds of electronic devices. Rigid PCBs are the most commonly used PCB materials. There are different types of rigid PCBs produced by different materials, and the commonly used ones are FR4 PCB, HDI PCBs, high frequency PCB, metal core PCB, IC substrate PCBs., etc. Here we talk about some of them.

Main Types of Rigid PCBs and Their Applications

1. FR4 PCB

FR4 PCBs are the most widely used PCBs as rigid circuit board. They are almost used in every electronics product below.

Applications

• Consuming Electronics: TV, Hi-FI, household applications such as mixers, toasters, dryers, washing machines, water heaters, microwave ovens, fridges, hair dryers, cookers, freezers, cookers, coffee machines, etc.
• Information Technology: computers, laptops, minicomputers, numerical control systems, computer peripherals, including 3D printers,3D scanners, Add-on memory, computers, barcode scanners, CD-ROM and DVD – writers, CD-ROM and DVD drives, cassettes, magnetic hard disk drives, keyboards, modems and interfaces, monitors, scanners.
• Measurement Equipment: power meters, GPS, calibration products, electromagnetic devices, gas meters, oil meters, flow meters, GAS detectors, smoke detectors, Inductive sensors, pressure sensors, speedometers, and other meters.
• Optical Equipment & Instruments: cameras, film copying equipment, laser cutting and welding machines, optical measuring equipment, projectors, laser equipment, etc.
• Telecommunications Industry: audio, video, internet and telephony, office automation,

2. High-Frenquency PCB

The 2 main characteristics of high-frequency rigid PCB material are low DK and low DF. High-frequency PCBs are produced by high-speed and high-frequency rigid PCB materials.

Applications

• Wireless Products
• Satellite Communication Equipment
• Cellphone Receiving base Stations

3. Metal Core PCB

Metal core PCBs is also a kind of rigid circuit board, they are mainly divided into 3 types: Aluminum base PCB, copper base PCB, and Iron base PCB. According to industry experience, the most common types are aluminum PCBs and copper PCBs.

Applications

• LED Lighting (office LED lamps, street lamps, LED backlights for TV, LED light for cars, emergency lighting, LED display, etc.)
• Power Supplies (power converter, power regulators, power amplifier, power modules)
• Telecommunication Devices

4. IC Substrate PCB

IC substrate PCBs is a special high tech rigid circuit board, they are developed based on HDI PCBs. It has excellent characteristics, such as high density, high precision, high performance, miniaturization, and lightness.

According to the application field, ic substrate PCB can be divided into memory chip packaging substrate, MEMS packaging substrate, RF module packaging substrate, processor chip packaging substrate, and IC substrate used in High-speed communication.

Applications

• EMMC: usually used as the memory modules of smartphones, SSD for laptops, tablet computers, etc.
• MEMS: sensors used in smartphones, tablet computers, wearable electronic products, etc.
• RF: RF modules used in wireless communication, such wife modules in smartphones.
• WB-CSP: baseband and application processors in smartphones, tablet computers, Internet of Things, etc.
• FC-CSP: baseband and application processors in smartphones, cloud computing, 5G communications, tablets, intelligent driving, etc.

Some Types of Commonly Used Rigid PCB Materials

There are hundreds of different types of materials for rigid PCBs. You may choose the suitable PCB material according to your technical requirements and cost. The most common types of rigid PCB material are:

Normal FR4 Material

Normal FR4 rigid PCB materials are distinguished by their TG and TG value. TG=135 is normal, TG=150 is middle, and high TG is >=170 or more. Normally used FR4 material types used in rigid circuit board manufacturing are: