source:Industry News release time:2021-04-27 Article author:Victoria Popular:pcb
There are many types of substrates used for PCB processing, but they are roughly divided into two categories, namely, the most commonly used boards for smt patches, inorganic substrate materials and organic substrate materials.
Inorganic substrates are mainly ceramic PCB boards, and the ceramic circuit substrate material is 96% alumina. In the case of high substrate strength, 99% pure alumina material can be used. However, the processing of high-purity alumina is difficult and the yield is low, so the price of using pure alumina is high. Oxide is also a material for ceramic substrates. It is a metal oxide with good electrical insulation properties and excellent thermal conductivity. It can be used as a substrate for high power density circuits.
Organic substrate materials refer to reinforced materials such as glass fiber cloth (fiber paper, glass, etc.), impregnated with resin binder, and made into blanks, then covered with copper foil, and made by high temperature and high pressure. This type of substrate is called copper clad laminate (CCL), commonly known as copper clad laminate, and is the main material for manufacturing pcb. A few days ago, circuit board quick proofing is widely used to make double-sided SMT is epoxy fiberglass circuit board, which combines the advantages of good glass fiber strength and epoxy resin, and has good strength and ductility.
Type and thickness of copper foil
Copper foil has a certain influence on the electrical performance of the product. Copper foil is generally divided into two categories: rolled copper foil and electrolytic copper foil according to the manufacturing method. Rolled copper foil requires high copper purity (generally ≥999%) and good elasticity. It is suitable for the manufacture of high-performance circuit boards such as flexible boards and high-frequency signal boards. It is indicated by the letter "W" in the product manual. Electrolytic copper foil is used in the manufacture of ordinary circuit boards. The purity of copper is slightly lower than that of rolled copper foil (generally 99.8%), and is represented by the letter "E".
Commonly used copper foil thicknesses are 9m, 12m, 18m, 35m, 70m, etc., of which 35m is used more often. The thinner the copper wire, the worse the temperature resistance, and the leaching will make the copper foil penetrate; if the copper is too thick, it will easily fall off.
Read recommendations:
Six-layer Immersion Gold Board (BGA)
Silver oil perforated plate (double-sided)
Popular recommended products
High frequency PCB
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Laminate copper-based PCB after 4L (sample)
2021-04-27High frequency PCB
2021-04-27Single copper base PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Mobile phone template (six layers)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-27Single-sided double-layer AL base PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Aluminum substrate (double-sided)
2021-04-27Silver oil perforated plate (double-sided)
2021-04-27Network communication board (sixth floor)
2021-04-29Six-layer Immersion Gold Board (BGA)
2021-05-27Computer card board (four layers)
2021-04-25Display board (six layers)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-04-27DIP plugin
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Six-layer Immersion Gold Board (BGA)
2021-04-26DIP plugin
2021-05-27SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-05-27SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Related Information
Composition of PCB
2024-09-29What is the difference between PCB and PCBA
2024-09-10PCB usage tips
2024-08-20Why do the circuit boards are green
2024-08-12How to clean the aluminum substrate?
2024-08-06Maintenance of Chemical Copper Plating Solution on PCB Board
2024-07-22single-sided PCB board and double-sided PCB board
2024-07-15PCB board production process flow
2024-07-09PCB CTI level
2024-07-01Via technology in circuit board factory.Automotive Electronics PCB
2024-06-25The role of FPC flexible circuit board solder mask
2024-06-18Detailed explanation of PCB board sampling production process
2024-06-11pcb v-cut depth standard
2024-05-27Multilayer Printed Circuit Board.What is the eq of PCB
2024-05-20The relationship between PCB safety distance and voltage
2024-04-22SMT surface mount processing.Hybrid circuit board PCB
2024-04-15PCB enterprises should pay attention to SMT matters.Electronic components PCB
2024-04-03PCB - the core building block of electronic products.Automotive Electronics PCB
2024-03-25PCB - the bridge and link of the electronic world
2024-03-18How to define high-frequency and high-precision circuit boards.Industrial Electronics PCB
2024-03-11USB PCB interface layout and wiring requirements
2024-01-22Electrolytic capacitor PCB.Steps for using PCB pins
2024-01-15Automotive ElectronicWhat aspects should be considered when processing and manufacturing PCB boards?
2024-01-08Electrolytic capaciWhat is the difference between a gold-plated circuit board and a gold-plated one?
2023-12-25When grinding PCB boards, attention should be paid to.Oscillator (belonging to crystal) PCB
2023-12-18Industrial Electronics PCB!What precautions should be taken when copying and grinding PCB boards
2023-12-11Do you know who is more suitable for LED direct display, regarding the difference between PCB board
2023-12-05Aluminum electrolytic capacitor PCB.What are the standards for selecting PCB boards
2023-11-27Surface Mount Technology (SMT) Phase PCB
2023-11-20Oscillator (belonging to crystal) PCB.The main functions of PCB board
2023-11-13
CopyRight © 2007-2024
粤ICP备2021061255号
Address:
1205, Floor 12, Building 3, Chuangyi Office Building, No. 110, Ziheng West Road, Jinsha Community, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China
Tel:
+86-755-29662580
Email:
sales@victoriapcb.com
PCB
PCBA
Service
Process
Tel: +86-755-29662580
Email: sales@victoriapcb.com
中
current position:
