According to the latest report released by market research institute IHS iSuppli, the global semiconductor market growth rate in 2012 was only about 3.3%. The reason for the sluggish industry is mainly due to the global economic downturn. Most of the mainstream views in the industry are watching the market in 2012.
Despite the many hazes, the tablet, smartphone, mobile communication base station, LED lighting, industrial control and automotive electronics are unanimously optimistic about the 2012 semiconductor market.
At the recent Shenzhen IC Show, multi-site industry or technology seminars and Beijing Lighting Exhibition, domestic and foreign semiconductor manufacturers have launched a large number of innovative basic technologies. At the Mobile World Congress in Barcelona (2012MWC), Intel, Qualcomm, Broadcom, TI, Marvell, TriQuint, Freescale, MediaTek, Nvidia and other chip manufacturers also exhibited a number of semiconductor technologies, enabling equipment manufacturers and terminal manufacturers in previous years. The main "two-person turn" has evolved into the "Three Kingdoms" of equipment, terminal manufacturers and semiconductor manufacturers in the 2012 MWC.
Let's take a look at the recent new technologies in the semiconductor industry in various applications.
LED lighting articles (on)
Under the background of weak control of the European debt crisis and the slow recovery of the United States and Japan, China will become the main driving force for the development of the global LED market . Despite the weak growth in the LED backlight market, the engines of the outdoor, commercial and industrial LED lighting markets are quite strong, supported by Chinese government policies.
For example, Suning Appliance recently agreed to entrust Huaxun Energy and China Putian to replace the lighting equipment of more than 1,000 retail stores with LED lighting equipment. Other companies will continue to follow.
Lance Zheng, senior manager of global technology marketing at Marvell, also said at the "2012 Industry and Technology Symposium" in Shenzhen: "In 2011, China's commercial lighting grew by about 70%, and this trend and growth rate will continue in 2012." He also pointed out: "China's demand for LED bulbs is certainly not as big as that of Europe and the United States. This is mainly because Chinese users are more sensitive to cost; in 2012, the EU's incandescent lamps will all be eliminated; on October 1, 2012, the United States required incandescent lighting to reach 25lm/W. At present, 70% of global LED manufacturing is in China, most of which are in Shenzhen, and the products are sold to Europe and America."
There is a two-year buffer period for households to popularize LED lighting.
Careful reading of the China Development and Reform Commission's policy on LED lighting will reveal that from October 1st, 2012 and 2014, it will ban the sale and import of 100W and 60W and above general lighting incandescent lamps.
Since the family mainly uses incandescent lamps below 100W, and the current cost per room for LED home lighting is tens of yuan or hundreds of yuan, a family needs more than one set according to the number of rooms. Most households are difficult or not. Willing to bear. Therefore, there is reason to believe that the large-scale effects of policies will not be immediately apparent. The time when LED lighting really enters the family may not be in 2012, and it is likely to be postponed until 2014. That is to say, there are more than two years of buffering period for manufacturers to pave the way for market promotion, development of new technologies and products related to lamps and power drives, further pulling down the high cost and improving reliability.
LED lighting design challenges
Qian Jiafa, manager of Fairchild Semiconductor's technical marketing department, analyzed several key factors in LED lighting design:
1. For AC voltage input applications above 5W, PF (power factor) ≥ 0.9 at rated input voltage; for MR16 illuminator applications with low voltage input, there is no regulation. At present, the demand for PFC for applications below 5W has begun to increase; the input electrolytic capacitors need to be omitted.
2. When the power is greater than 25W, the THD (total harmonic distortion) is less than 25% (<10% in the Russian market). There are no strict requirements for bulb type applications.
3. The power efficiency of the LED driver board, in low power applications, when there is no dimming plate, it is greater than 85%; when there is a dimming plate, it is greater than 80%. The efficiency is getting higher and higher, but the associated BOM cost has also increased.
4. In terms of dimming compatibility, the phase cut dimmer (leading edge and trailing edge type) is the mainstream, to ensure that the LED light does not flash.
RAM/RFM electric heating capacitors
RAM/RFM electric heating capacitors
RAM/RFM electric heating capacitors
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