1. As of May 20, Weil Shares held a total of 23,905,087 shares of Beijing Junzheng, accounting for 96% of the total share capital of Beijing Junzheng, and paid a cumulative equity acquisition payment of 6800 million yuan. If Weil shares complete 4 billion yuan to increase its holding in Beijing Junzheng, it means that it will spend more than 6 billion yuan in Beijing Junzheng equity. 2, there are many uncertain factors, the market has reached the extreme panic, similar to the market situation before the end of October, the external factors are more influential, A shares are more panicked than the US stock market, we can see the US stock Nasdaq fell 49% in 2022, the GEM fell 02%. But there have also been four increases, with an average increase of more than 50%, looking back, and now a semiconductor tuneWhole, still normal. 3, in the afternoon of October 24, the semiconductor sector continued to weaken, Shengbang shares (300661) fell by the limit, Jacques Technology (002409) shares fell more than 7%, Weil shares (603501) fell more than 6%, Yingtang Zhikong (300131), Newei Technology (300456) fell more than 5%, Tongfu Micro Electricity (002156), Jianghua Micro (603078), Guoke Micro (300672), Beijing Junzheng (300223) and other stocks have also fallen.
4, as of today's close, semiconductor concept stocksLexin Technology, full Zhi technology fell more than 14%, Siripu, Star Semiconductor, Beijing Junzheng fell more than 9%, Fuhan Micro, Jingfeng Mingyuan, Core Sea Technology, Shengbang shares, NAURA Chuang, Zhaoyi Innovation, Ming Microelectronics, etc., all fell sharply. In terms of capital flow, a total of 28 stocks in the semiconductor sector had a net outflow of more than 100 million.
5, semiconductor chip leading stocks Top 10 China semiconductor chip leading stocks top 10 are: NAURA; Smic; Zhaoyi innovation; Zhuo Sheng micro; Purple light country micro; Weil Shares; Beijing Junzheng; China Resources Micro; Yang Jie Technology; Changdian Technology. Naura.
Now there are still a lot of electronic cigarettes on the market, can not be said to be recognized, can only be said to be compliant and legal commercial transactions, after all, Yue carved has its own company, but also has a lot of physical stores.
1, research the company's operation: when selecting stocks, we should study the company's operation, such as the company's business model, financial status, management's ability, the company's development strategy and the industry environment. Analyze stock price fluctuations: Analyze stock price fluctuations in depthTo understand the historical price trend of the stock, analyze the price change of the stock, and pay attention to the price change of the stock in time.
2, in the selection of stocks need to consider the fundamental and technical factors, in order to obtain more comprehensive stock information. First of all, from the fundamental point of view, investors need to pay attention to the company's financial situation, operating performance, industry prospects and other aspects. It includes the following aspects: Financial status: understand the profit, cash flow, balance sheet and other financial indicators of the enterprise, and judge whether the enterprise has sufficient profitability and the ability to repay debts.
3. How to choose stocks correctlyValue discovery: is the most traditional investment method on Wall Street, in recent years has also been recognized by Chinese investors, the basic idea of value discovery method, is to use some basic indicators such as price/earnings ratio, price-to-book ratio to find undervalued stocks. Because this method requires the analyst to have considerable professional knowledge, it has certain difficulties for non-professional investors. The theoretical basis of this method is that price always returns to value.
1. The United States suppressed Huawei, and Qualcomm was affected. Outside HuaweiAfter the news of the chip, the first to jump out of the hurry is Qualcomm. 2, but then again, although the series of "suppression" measures taken by the United States on Huawei did have a large extent of impact on Huawei at the beginning, but the "good scene" is not long, and the United States and other companies have been some of the time before Huawei is overwhelmed, so they have to persuade the United States not to "suppress" Huawei. This will not pay for itself, and will only lead to continued suffering for US tech companies.
3, while Trump suppressed Huawei, Qualcomm became the biggest victim. supposedlyThe termination of Qualcomm's cooperation with Huawei will cost the company about $8 billion a year, which is a heavy blow to the company. Three chip manufacturers Mobile phone chip manufacturers are currently the most common, is Qualcomm, Samsung and Mediatek. From the comparison of performance, Qualcomm has a certain advantage, which is also the reason why many people choose Huawei.
The core material for making LED lights is light-emitting diodes. LED is an English light emitting diode(light-emitting diode) abbreviation, its basic structure is an electroluminescent semiconductor material chip, cured with silver glue or white glue to the bracket, and then connected to the chip and circuit board with silver or gold wire, and then sealed around with epoxy resin to protect the role of the internal core wire, and finally installed the shell, so the seismic performance of LED lights is good.
LED luminous principle: LED is made of Ⅲ-Ⅳ compounds, such as GaAs (gallium arsenide), GaP (Gallium phosphide), GaAsP (gallium phosphide) and other semiconductors, its core is PN junction. It therefore has the I- of the general P-N junctionN feature, that is, positive pilot, reverse cut-off, breakdown characteristics. In addition, under certain conditions, it also has luminous properties. Under forward voltage, electrons are injected into P region by N region, and holes are injected into N region by P region.
See what the specific lamps are, take LED, the core is the light source, that is, the chip domestic LED, the chip is produced in Taiwan or other developed countries, and then take back the domestic packaging enterprise packaging, and then to the assembly factory assembly to sell, the division of labor is very fine. The chip factory has its own core technology, the packaging factory has its own core technology, and the power plant also has its own core technology, followed byShell factory, assembly factory. The light source of the Led lamp is a solid-state semiconductor device, also known as the LED light-emitting chip, which is the core component of the Led lamp, which determines whether a lamp can have the advantages of high luminous efficiency, high color rendering index and high junction temperature. Expensive LED lights, usually in the chip. The poor quality of the chip will inevitably affect the life of the lamp. If your new lights always need to be "replaced once a year", it means that the chip is not good.
LED filament is one of the core technologies of filament lamp, LED filament technical parameters and quality, related to the brightness of LED filament lamp,Color temperature, apparent finger and service life, lumen ratio of cold and hot state. LED filament manufacturing technology currently has the traditional packaging "solid crystal technology" and the emerging "crystal coating technology". Solid crystal technology requires gold wire, crystal coating technology that uses flip LED chips, like ordinary electronic components, as well as reflow welding.
LED chip is the core of LED light, it is just a small box, there are positive and negative electrode 2 solder joints. The LED lamp bead is the positive and negative electrodes of the LED chip are connected to the bracket through the gold wire respectively to form a loop, and then the fragile gold wire and chip are protected with colloidsGet up as a whole. LED chip is the core of LED light, it is just a small square, there are positive and negative electrode 2 solder joints.