What is the material used for the PCB substrate of the innovative sound card?

Copper foil, resin, glass fiber cloth.

PCB substrate materials are divided into three categories: single-sided, double-sided, and multi-layer boards.

1. Single-sided side.

Single-sided sided On the most basic PCB, the parts are concentrated on one side and the wires are concentrated on the other side (when there is a chip component, the wire is on the same side, and the plug-in device is on the other side). Because the wires only appear on one side, this type of PCB is called single-sided. Because single-sided boards have many strict limitations in designing circuits, only early circuits used these boards.

2. Double-sided panel.

Double-sided boards have wiring on both sides, but in order to use wires on both sides, there must be a proper circuit connection between the two sides. This "bridge" between circuits is called a guide hole. A pilot hole is a small hole in the PCB that is filled or coated with metal, and it can be connected to wires on both sides.

Because the area of the double-sided board is twice as large as that of the single-sided board, the double-sided board solves the difficulty of staggered wiring in the single-sided board.

3. Multi-layer boards.

In order to increase the area that can be routed, multilayer boards use more single- or double-sided wiring boards. With a double-sided inner layer, two single-sided as the outer layer or two double-sided as the inner layer, two single-sided as the outer layer of the printed circuit board, through the positioning system and insulation bonding materials alternately together and the conductive pattern is interconnected according to the design requirements of the printed circuit board becomes a four-layer, six-layer printed circuit board, also known as a multi-layer printed circuit board.

Generally, substrate materials for printed boards can be divided into two categories: rigid substrate materials and flexible substrate materials.

In general, an important variety of rigid substrate materials is copper clad laminates. It is made of reinforeing material, impregnated with resin adhesive, dried, cut, stacked into a blank, then covered with copper foil, and used as a mold with steel plate, which is formed by high temperature and high pressure in a hot press.

The general prepreg for multi-layer board is a semi-finished product of copper clad laminate in the production process (mostly made of glass cloth soaked in resin and dried and processed).

Generally, it is divided into: cardboard, semi-glass fiber, glass fiber.

Special ones are: aluminum-based, copper-based, ceramic, Teflon and so on.

1. The main material of printed circuit board (PCB board) is copper clad laminate, and copper clad laminate (copper clad laminate) is composed of substrate, copper foil and adhesive.

2. It is an insulating layer composed of polymer synthetic resin and reinforcing materials; The surface of the substrate is covered with a layer of pure copper foil with high conductivity and good weldability, with a common thickness of 35 50 mA; The copper clad laminate covered by copper foil on one side of the substrate is called single-sided copper clad laminate, and the copper clad laminate covered with copper foil on both sides of the substrate is called double-sided copper clad laminates; Whether the copper foil can be firmly coated on the substrate is completed by the adhesive. There are three thicknesses of commonly used copper clad laminates.

94V-0: These are flame retardant ratings;

FR-1 is a paper substrate material;

FR-4 is a conventional epoxy fiberglass laminate;

The specific phenolic resin and epoxy resin used for which plates depend on the circuit design needs, for example, high-frequency circuits need ceramic materials, rather than epoxy resin, and even microwave boards need PTFE materials;

Common materials for rigid PCBs include phenolic paper laminates, epoxy paper laminates, polyester glass felt laminates, and epoxy glass cloth laminates; Common materials for flexible PCBs include polyester film, polyimide film, and fluorinated ethylene propylene film.

Common thickness ,,, for rigid PCBs, etc. The common thickness of flexible PCB is that a thickened layer will be added behind the part to be welded, and the thickness of the thickened layer will be different.

Raw materials: Copper clad laminate is the substrate material used to make printed circuit boards. It is used as a support for various components and can be used to make electrical connections or electrical insulation between them.

Aluminum substrate: PCB aluminum substrate (metal base heat sink includes aluminum substrate, copper substrate, iron substrate) is a low-alloying Al-MG-SI series of high plasticity alloy plate, which has good thermal conductivity, electrical insulation performance and mechanical processing performance, and is now the mainstream aluminum substrate.

Do you mean the finished circuit board, and what substrate is used?

94V-0: These are flame retardant ratings;

FR-1 is a paper substrate material;

FR-4 is a conventional epoxy fiberglass laminate;

The specific phenolic resin and epoxy resin used for which plates depend on the circuit design needs, for example, high-frequency circuits need ceramic materials, rather than epoxy resin, and even microwave boards need PTFE materials;

PCB type.

a.Divided by material.

a.Organic.

Phenolic resins, glass fiber epoxy resins, polyimide, BT epoxy, etc. are all of them.

b.Inorganic material.

Aluminum, copper-invar-copper, ceramic, etc. are all included. It mainly takes its heat dissipation function.

b.Distinguish by the soft and hard of the finished product.

a.Rigid PCB

b.The flexible PCB is shown in Fig.

c.The rigid-flex PCB is shown in Figure CDivided by structure.

a.Single-sided See Fig.

b.Double-sided see figure.

c.Multi-layer board see Fig.

d.According to the use: communication, consumable electronics, military computers, semiconductors, electrical test boards..., see Figure BGA

There is another kind of injection molded stereo PCB, which is not introduced here because of its small use.

PCB type.

a.Divided by material.

a.Organic.

Phenolic resins, glass fiber epoxy resins, polyimide, BT epoxy, etc. are all of them.

b.Inorganic material.

Aluminum, copper-invar-copper, ceramic, etc. are all included. It mainly takes its heat dissipation function.

b.Distinguish by the soft and hard of the finished product.

a.Rigid PCB

b.Flex Flexible PCB

c.Rigid-flex PCB

c.Divided by structure.

a.Single-sided.

b.Double-sided.

c.Multi-layer boards.

d.According to the use: communication, consumable electronics, military computers, semiconductors, electrical test boards...Flame resistant plates are still available

FR-1, FR-2, FR-3, (the above three are paper substrates) and FR-5 (epoxy resin, CEM-1 paper fiber (generally white) is a single-layer board, composite epoxy resin copper foil substrate CEM-2 to 5. The flame retardant board with a fire rating of 94V0 does not spontaneously combust, and the flame source of the 94HB non-flame retardant board is extinguished within about 5 seconds after leaving. If you are in contact with a PCB manufacturer, you can ask them for a PCB board specification.

This document is in it, you can refer to it.