Does the lockdown of Xi'an affect the supply of shielding, absorbing, and thermally conductive materials?; OPPO、 Comparison of Samsung and Huawei's three mainstream foldable screen phones, who do you think highly of

1. Xi'an lockdown, electromagnetic shielding materials, thermal conductive materials, conductive electroplated gold cloth, LCP non-woven fabric, absorbing materialsSilver powderSilver copper adhesiveConductive silver paste adhesiveIs there any impact on the supply of conductive carbon fiber palladium powder, gold powder, precious metal powder, PET metal coating, gold plating, tin plating?

Due to epidemic control measures, Xi'an announced a city lockdown on the evening of the 22nd.

According to the latest epidemic prevention measures announced in Xi'an on the 22nd, communities (villages) and units in the city will implement closed management. Each household will have one person go out every two days to purchase daily necessities, while other family members generally do not go out except for working in industries closely related to epidemic prevention and control, urban operation guarantee, and residents' lives. They need to hold a certificate issued by their unit or community when going out.

In terms of industry and commerce, non essential places are temporarily closed except for epidemic prevention needs and livelihood security. During the epidemic, party and government agencies, enterprises, institutions, and social organizations may implement flexible work schedules or work from home. Encourage enterprises to adopt flexible employment policies, promote remote and online work, and reduce personnel mobility.

After nearly two decades of development, Xi'an has formed a pattern of rapid development in the integrated circuit industry represented by power semiconductors, third-generation semiconductors, and memory.

Currently, Xi'an has become a major hub for China's semiconductor (mainly memory), automotive, equipment manufacturing, and new energy industries. The market is concerned that the lockdown may trigger another wave of supply chain crises in the chip and automotive industries.

According to the Shaanxi Semiconductor Industry Association, the manufacturing output value of integrated circuits in Xi'an in 2020 was about 76 billion yuan, ranking first in the country; The design output value is about 14 billion yuan, ranking sixth in the country; The sealed test output value is about 12 billion yuan, ranking fourth in the country; In addition, the semiconductor support industry achieved an output value of about 16 billion yuan, and discrete devices reached about 7 billion yuan.

At present, from various fields of the semiconductor industry chain. Xi'an has over a hundred semiconductor design companies including Kreis, Ziguang Guoxin, Zhaoyi Innovation, and Loongson Zhongke, ranking sixth in the country. Its products cover many fields such as communication, memory, Internet of Things, and power devices. At present, the highest design level in Shaanxi has reached 7nm, and research and development work on SoC chips for 10nm industrial platforms is underway.

In the field of integrated circuit manufacturing, the scale continues to expand. Xi'an has 8 semiconductor wafer manufacturing enterprises, among which Xi'an Samsung Semiconductor had a production value of over 70 billion yuan in 2020, ranking first in the country for many years. The highest level of wafer manufacturing has reached 12 inch 14nm level memory wafer manufacturing technology.

Xi'an is also an important gathering place for the packaging and testing industry in the northwest region, with 13 packaging and testing enterprises such as Huatian Technology, Micron, and Licheng. Its products include integrated circuit packaging, advanced sensor packaging, power devices, and intelligent power modules.

Among the supporting industry enterprises, in addition to a large number of gas, liquid, and chemical enterprises that have provided supporting services for Samsung, local enterprises such as Longi Green Energy, the world's largest monocrystalline silicon photovoltaic product manufacturer, Yisiwei, which produces 12 inch large silicon wafers, and Nonferrous Tianhong Ruike, which produces electronic grade polycrystalline silicon, have also grown rapidly. Currently, there are nearly 70 supporting industry enterprises in Xi'an, and the industrial environment is becoming increasingly perfect, forming a relatively complete industrial chain system.

Undoubtedly, with the semiconductor industry of Xi'an's scale, the lockdown may have a significant impact on the production and manufacturing of chips. But according to the latest information learned by Mantianxin, semiconductor packaging and testing manufacturer Licheng stated that production at the Xi'an factory is currently normal, and local companies are responsible for transporting employees to and from work point-to-point. The inbound and outbound goods in the factory area are also smooth and normal, and have not been affected for the time being.

Of course, the most important thing at present is epidemic prevention. Amidst the epidemic, there is no love for anyone. Let's help each other and ensure peace. May Xi'an overcome the epidemic as soon as possible and everyone be safe and sound. Xi'an, come on!

2. It's about details! OPPO、 Comparison of Samsung and Huawei's three mainstream foldable screen phones, who do you think highly of

In the current mainstream foldable screen market, most people think of either Huawei or Samsung. After all, these two brands were among the first mobile phone manufacturers to launch foldable screen phones, followed by Xiaomi and OPPO. Take the OPPO Find N foldable screen phone, which was released recently, as an example. Since its last official release, it has sold out quickly across the internet and has attracted the attention and pursuit of a large number of users and consumers. Let's take a look at the highlights of this phone.

In fact, OPPO still has some room for improvement in screen ratio, especially in terms of size. Although OPPO has considered users' usage habits and equipped us with a 5.49-inch external screen and a 7.1-inch internal screen, it can be said to be "small enough and large enough"; But for some consumers who pursue a larger screen experience, the bigger the better. The larger the size, the better the field of view it brings. When playing games or watching movies, they can also get a better visual experience. If the subsequent iterations can achieve a balance between size and visual perception, it will surely be more attractive.

Secondly, in terms of thickness, it cannot be denied that the OPPO Find N has brought about precision cone hinge technology, waterdrop hinges, and UTG glass, which have indeed eliminated the common problem of creases in the industry. However, they have also brought a series of problems, such as the overall weight of the machine body.

Of course, foldable screen phones are too heavy, and this is not the case with OPPO Find N. Folding screen phones from companies like Huawei and Samsung are also the same. However, there is still room for improvement for OPPO, Huawei, and Samsung. If the thickness and weight of foldable screen phones are reduced again, it will surely bring better and more outstanding user experience to users and consumers.

Speaking of which, it's not that the OPPO Find N phone is bad. On the contrary, compared to the current mainstream foldable screen phones, OPPO Find N is the best and most outstanding foldable screen phone. Comparing the actual photos below, it can be seen that in the case of a black screen, although all three foldable phones have creases, the OPPO Find N almost achieves a wrinkle free appearance, while the Huawei Mate X2 and Samsung Fold 3 are relatively more obvious.

(OPPO Find N in the bottom right)

Another difference is in screen parameters and brightness. Among these three products, OPPO Find N is the best. Due to the use of the latest E5 material screen and 120Hz refresh rate adaptive technology, the brightness and transparency of the screen far exceed Samsung and Huawei's two foldable phones. This can be clearly felt from the actual photos below.

(OPPO Find N in the bottom right)

Finally, there is a difference in gameplay. OPPO Find N adopts precision cone hinge technology and droplet hinge technology, so it can hover at multiple angles. For example, when watching a movie, we can fold the screen 50 ° -120 °, play the movie screen in the upper part, and interact with fans or browse Taobao in the lower part.

In summary, compared to foldable smartphones from Huawei and Samsung, OPPO Find N outperforms them in terms of screen quality and craftsmanship. We cannot deny that Huawei and Samsung also have their own unique advantages and highlights in foldable screens, but compared to them, I am more optimistic about OPPO Find N. What do you think about this? Why don't you share your opinion in the comment section.