
Rugao Liantuo Electronics Diode Co., Ltd. is located in Rugao, Nantong. With 8 years of production experience, Liantuo is a professional production of electronic diodes company in China. Liantuo offers a variety of diodes such as high-voltage electronic diode, Microwave diodes, Fast recovery diodes, Schottky diode etc. which you are basically used in daily life. We aim to be a company that will chosen for our pioneering technology and spirit embedded in our products.
1. Advanced Equipment
In order to provide excellent products, we have brought latest equipment like the single-crystal furnace of PVA TePla AG in Germany, the PECVD of Proto Flex in America, the MSA of Shenyang Zhongke instrument, and so forth. We commonly use multiple wafer packaging for one product.
More than 70% are fully automated which have improved our work efficiency and enabled us to produce higher quality products.



2Skilled operators
Due to our high standard of recruitment, we have already selected some skilled and responsible operators. We assign employees to different departments according to their respective strengths. The division of operator is clear so that we can successfully achieve precision production and maximize production capacity. During the operation process, we adjust the internal structure based on customer feedback.
In addition, the experienced engineers come to our factory to supply technical support including analysis, adjustment, operation and design regularly.
Excellent quality
Liantuo claims that our products have met the EU standard!
Before our product reach the market, we will strictly sample the production batch to ensure compliance with standards. If you decide to cooperate with us, we will also provide a testing report together with the delivery.
If you are not satisfied with the goods when you get them, please feel free to contact us.
Customizable service
As long as you have detailed product specifications, we provide customized services according to your requirements. Customized products’ price reasonably based on the raw materials and your quantities.
What is a high-voltage electronic diode?
A high-voltage diode is a rectifier diode with a voltage exceeding 1000 V. Low leakage and impact resistance of the high-voltage diode make it wildly used in power supplies, high voltage transformers, and electronic ballasts. Because of the small size and easy installment, it is also a good choice for automatic production.
The diodes we produced with high speed switching characteristics and are environmental friendly, in line with international standards.
Tips: Thanks to the damping of each high-voltage diode, we do not use a digital multimeter to measure the true quality but the pointer one with a resistance range of 10k. No matter which side of the multimeter swing, it shows that the diode is good. If neither side of the measurement will swing, it is a bad one.
Microwave diodes
The substrate material of microwave diodes has developed from germanium and silicon to gallium arsenide, which has continuously improved the working frequency of microwave diodes. At present, the highest frequency has reached 300 GHz. Microwave diodes have the advantages of small size and high reliability, and are used in microwave oscillation, amplification, frequency conversion, switching, phase shifting and modulation. This kind of diode is quiet commonly used in radar systems, communication devices, and microwave ovens.
Fast recovery diodes
The fast recovery diode is FRD in short. Normally the structure and function of the fast recovery diodes are not much difference with other rectifier diodes. The forward voltage drop of the fast recovery diode is usually between 1~2V, and its reverse withstand voltage is mostly below 1200V. It takes more shorter recovery time than other typical diodes thus improving the switching speed and efficiency.
This kind of diodes is often used in high-frequency switching power supplies as a rectifier such as color TVs. If you use any rectifier diodes, the appliances will not work properly.
Schottky diode
Schottky diode, also known as Schottky barrier diode, abbreviated as SBD, is a low-power, high-current, ultra-high-speed semiconductor device. It is a a low-VF diode formed by the junction of a semiconductor with a metal. Liantuo has a large array of reverse voltages from small signal products to power-line products. Our Schottky Barrier Diodes are low-VF and low-IR types which can help to improve efficiency and save power.
Laser diode
Laser diodes have the advantages of low threshold current and high output power, and are the mainstream products in the market. The current laser diodes are usually surface-emitting type, that is, the emission direction is perpendicular to the film surface, and the gain is provided by multiple quantum wells. Laser diodes are used in fiber optic communication systems to transmit large amounts of data quickly and efficiently over long distances.



One of the main uses of diodes is in rectifiers. By converting alternating current (AC) to direct current (DC), they make it possible to power devices such as radios, televisions, and computers. The high voltage diodes Liantuo produced have high-current 20mA~1000mA but high voltage rectifier diode with voltage 3KV~30KV. We adopt the designing of high reliable multiple mesa structure and silicon tube, molded in small volume and compact packing surface by epoxy resin. World famous companies like Toshiba, Samsung, LG, Megmeet, Whirlpool, Media are all our co-operative partners.

Another significant application of diodes is in the field of telecommunications. They play a significant role in removing unwanted interference by modulating and filtering radio signals.
The diodes we produced like rectifier diodes and Zener diodes which are small but efficient are commonly used in portable devices such as smartphones and tablets.

Diodes are also an important component in solar cells. They work by allowing electrons to flow in only one direction, which makes it possible to convert light energy into electrical energy. Nowadays, Liantuo is trying best to develop our own solar photovoltaic diode technology. We have already set a subsidiary industry in Zhejiang.

As electronics become more sophisticated, diodes are likely to become even more important. They are a key component in many cutting-edge technologies, including 5G networks and the Internet of things. We produce a low forward and small Schottky diode which are suitable for 5G base stations. The new product SS14 is used for the 5G networks and features a voltage of 40V and current of 1A.

In conclusion, diodes have a wide range of applications, and their importance in modern electronics cannot be overstated. Whether in telecommunications, solar energy, or rectification, they are an essential component in many of the devices that we rely on every day.
Tips: We offers different types of high-voltage diodes like high frequency voltage diodes, high frequency small body high voltage diodes, high frequency and high surge resistivity voltage diodes and so on. Each one has difference specification. If you want to know more, you can browse our website and find the specific model to check.
As we all know, the Schottky diode uses the Schottky structure, which plays a huge advantage in some special applications. Follow me to Liantuo, and let's see how the Schottky diode was born.
The production technology of international diodes is now very mature and transparent, and the vast majority of Schottky diodes use silicon wafers as the substrate. Grinding and polishing the substrate is the first process step, we remove impurities and ensure the smoothness of its surface.Then, the silicon wafer is thoroughly cleaned to remove organic matter and dirt from the surface in preparation for subsequent operations.
Next, the starch film needs to be peeled off. This is a soluble film material, the purpose of which is to form a film on the surface of the silicon wafer to protect the surface of the silicon wafer and act as a shield in other process steps. We then added an acidic solution to strip the starch film, resulting in a flat silicon wafer.
In the back-side deposition step, a back contact electrode is formed, usually using metal materials such as aluminum and copper to improve the conductivity of the circuit structure.
Activation is a crucial step in the fabrication of Schottky diodes. After heat treatment of the back contact electrode, good contact is formed with the silicon wafer. This process improves the performance of Schottky diodes.
As a special material to limit the flow of electrons and holes, the deposition of the blocking layer is also an important step to improve the performance of Schottky diodes. We usually use silicon nitride and aluminum nitride for this step. Before that, we need to clean the silicon wafer to ensure the adhesion between the barrier layer and the silicon wafer.
The last and most important step is the production of the metal wire. This is an important part of connecting the Schottky diode, which needs to be produced through process steps such as electroplating.Aluminum or copper with good conductivity is the main material for making metal wires.
If you are interested in our production process, you are welcome to visit our site.
As a qualified diode manufacturer, we have obtained various certificates in various projects.




















Q: 1. How does a high voltage diode work?
Q: 2. Why choose a high voltage diode?
Q: 3. What is the voltage-current characteristic?
Q: 4. In which fields are high voltage diodes generally used?
Q: 5. Can a high voltage diode be used for low voltage rectification?
Q: 6.Are diodes suitable for paralleling?
Q: 1. How to test high voltage diodes?

Q: 2. How to store high voltage diodes?
Q: 3. What is the shelf life of high voltage diodes?
Q: 4. What is the operating temperature range of high voltage diodes?
Q: 1. What should be noted when installing high voltage diodes?
Q: 2. Can high voltage diodes be surface-mounted using reflow soldering?
Q: 3. Can diodes be manually soldered during surface mounting?
Q: 4. Where is the installation position of high voltage diodes?
Q: 1. How to select high voltage diodes?
Q: 1. Are relevant certificates provided?
Q: 2. How to obtain diode parameters?
Q: 3. How much does each high voltage diode weight ?
Q: 4. Can high voltage diodes be purchased in small quantities?

We're well-known as one of the leading high voltage diode manufacturers and suppliers in China. Please feel free to wholesale high quality high voltage diode made in China here from our factory. For more information, contact us now.
CL08-08, High Voltage Diode, CL01-12