دعونا نتحدث عن أهمية نيتريد السيليكون (سينكس) في رقائق سي نيتريد

Why does silicon nitride play a vital duty in chips? Evaluate the benefits of silicon nitride compared to other products.

In chip production, there is a product that plays a vital duty, that is silicon nitride (سينكس). Although it might not receive the exact same attention as other much more well-known semiconductor products such as silicon (Si), gallium arsenide (GaAs) or gallium nitride (GaN), its importance is self-evident. The majority of chips will use this product.

1. Why is it SiNx?

Careful close friends have noticed that I made use of SiNx when composing the chemical formula of silicon nitride. Friends that have actually researched secondary school chemistry ought to recognize that N is the 5th major group aspect. Practically, the valence should be -3, while the chemical valence of silicon is +4. The chemical formula of silicon nitride need to be Si3N4. Just how can it be SiNx?

أولاً, let’s speak about the multivalent state of nitrogen: nitrogen has numerous valence states, mainly due to the fact that it has 5 valence electrons, and nitrogen atoms can share these electrons in different methods. Nitrogen can create various valence states, which mainly depend on the number of electrons it shows other components.

For nitrogen, its most steady valence state is -3, such as in ammonia (NH3) and gallium nitride (GaN). ومع ذلك, nitrogen can additionally form a favorable valence state by losing electrons, such as the +5 valence state in nitric acid (HNO3). علاوة على ذلك, nitrogen can also develop a valence state in between -3 و +5, such as the +3 valence state in nitrous acid (HNO2) or the +1 و +2 valence states in some natural compounds.

ثانيًا, let’s discuss silicon nitride:

In the semiconductor market, silicon nitride utilized in various applications is often non-uniform, normally represented by SiNx. SiNx is an amorphous material whose properties depend on the ratio of nitrogen to silicon, إنه, the worth of x. When the value of x adjustments, the physical and chemical homes of silicon nitride will also change. Silicon nitride does come in several kinds, consisting of Si3N4, Si2N2, SiN, وهكذا

Si3N4 is a crystalline product, which means that its silicon and nitrogen ratio is repaired. When the value of x is equal to 4/3, SiNx is equal to Si3N4. ومع ذلك, in functional applications, SiNx is often non-uniform, and its silicon and nitrogen ratio can be regulated by transforming the specifications of the PVD or CVD procedure.

2. What is the function of SiNx in chip manufacturing?

Silicon nitride has excellent insulation residential properties, and its resistivity can be as high as 10 ^ 14 Ω · cm, much surpassing some common shielding products such as silicon oxide (SiO2). Its low dielectric constant makes it a perfect seclusion layer in microwave and RF applications. The silicon nitride layer also contributes in obstructing the diffusion of pollutants in the chip. It can protect against dopants such as boron and phosphorus from changing gadget features with diffusion. فضلاً عن ذلك, it can additionally avoid the diffusion of steel ions to prevent mistakes such as short circuits.

The exceptional thermal security of silicon nitride is determined by its unique chemical buildings and crystal structure. It can stay secure in a high-temperature setting without chemical decay or physical shape adjustments like other materials. That’s because in the crystal structure of silicon nitride, each silicon atom is integrated with four nitrogen atoms in the form of a tetrahedron, and each nitrogen atom is also integrated with four silicon atoms in the type of a tetrahedron. This structure makes the crystal latticework of silicon nitride exceptionally stable and hard to flaw. نتيجة ل, it is made use of as a gate-insulating layer when manufacturing high electron wheelchair transistors (HEMTs).

3. What are the advantages of SiNx over SiO2?

Much better thermal stability, more difficult hardness, and harder to engrave.

Provider of Silicon Nitride Powder

TRUNNANO هي مورد لمواد الطباعة ثلاثية الأبعاد بأكثر من 12 سنوات من الخبرة في الحفاظ على الطاقة في بناء النانو وتطوير تكنولوجيا النانو. ويقبل الدفع عن طريق بطاقة الائتمان, تي/تي, ويسترن يونيون وباي بال. ستقوم Trunnano بشحن البضائع إلى العملاء في الخارج من خلال FedEx, دي إتش إل, عن طريق الجو, أو عن طريق البحر. إذا كنت تريد معرفة المزيد عنها si nitride, لا تتردد في الاتصال بنا وإرسال استفسار.