10 Layer ENIG PCB

PCBs with more than 10 layers are mostly used in high-end products, and the PCB materials used are mainly high Tg

TU-76 material has many excellent properties, such as good CAf resistance, stable thermal expansion coefficient,
Good heat resistance, strong chemical corrosion resistance, low water absorption, etc., and is widely used in a variety of PCB products. TU-768 is a high Tg material with a wider range of applications.

0-768

E glass: E stands for electrical, i.e. electrically insulating glass. It is a calcium aluminum silicate glass with very little alkali metal oxide content (generally less than 19%), so it is also called high resistivity alkali-free glass.
E glass has become the most commonly used component in glass fiber. Unless otherwise specified, E glass is commonly used in many materials. NE glass, also known as low DK glass,
Is a low dielectric constant Berglass developed by Nito Texte Co, Ltd of Japan. Its dielectric constant (11MHz) is 46, that of E glass is 66, and its loss factor is $IMH2s0.0007 (0.0012 for E glass). Common materials using NE glass include M7NE, LT968SE and IT988GSE.

Classification according to the resin system used by the supplier and its properties.

ITEQ:

IT180A/T170GRA1/T958G/T968/T968SE/T988GSE

Taiyao TUC:

Tu862HFTu872LK/Tu8725LK/Tu8725LK-SPTu883Tu933+

Panasonic Panasonic:

Megtron4/M4S/MegtronSM6G/M7E/M7NE

Park meteorwave series.

MWV1000/2000/300040008000

Shengyt s1000-2 (m/s7439/56, etc

Rogers:ro4003/ro3003/ro4350b (RF materiall, etc

(The above are some common ones, I will not list them one by one) The above materials can be used to manufacture 2-layer printed circuit boards, multi-layer printed circuit boards (PCBs with more than 4 layers) and hybrid high-frequency PCBs.

Classification by loss level

It can be divided into medium loss board (DF2 0.02l), medium loss board (1001<DF<002), low loss board (0.005<DF<001), ultra-low loss board (DF<0 005), etc. These are divided according to the Df value of the material. The classification here is relatively broad, but it is just a general classification. Different people may have different classification ranges.

Classification according to flame retardancy

Flame retardant (ul94-vo, ul94-w1) and non flame retardant (ul94-hb)

Of course, there are some other categories, which will not be expanded here one by one. After reading the above introduction, let’s go back to the question in the fourth article:
What kind of board do you usually use?

Of course, you must remember the material name corresponding to the resin system used and its performance, such as It180a/s100-2/t868/M4s, etc.

Finally, knock on the blackboard and draw the key points. According to the material names of different boards and manufacturers,
we made the following material pyramid, which is mainly based on common medium and high-speed boards, which are less than ordinary FR4, and ordinary FR4 such as ITl80a.s1000-2/Mandtu752/768.

These DFs basically have some differences and are also the most used high-density PCB boards.

ZBPCB is the production of a variety of high-guality 10 layer Printed Circuit Board manufacturer

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