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 About Our Members |
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 A Company with Nimble Focus on Energy Efficient Power Solutions and Mobile Connectivity
Fairchild Semiconductor was established in 1957 by the pioneering group known as the Traitorous Eight that included Robert Noyce, Jean Hoerni and Gorden Moore. Named for Sherman Fairchild who agreed to fund the new company due to Noyce’s impassioned vision of using silicon substrate for a transistor, the goal of the original company was the development and production of silicon diffused transistors and other semiconductor devices. In 1958, Fairchild pioneered the planar process developed by Hoerni and with it a new industry of planer transistors. Two years later Fairchild built a circuit with four transistors on a single wafer of silicon, thereby creating the first silicon IC (Jack Kilby of Texas Instruments had also independently developed an IC made of Germanium in the same year). Fairchild quickly grew from twelve to twelve thousand employees, and became the cornerstone of the semiconductor industry spawning many new companies in the Silicon Valley (See Fig. 2).
In 1997, Fairchild became the industry's first multi-market semiconductor company producing logic, memory, and discrete technology. Today, the company is known as a leading global supplier of high performance power and mobile products, delivering energy-efficient, easy-to-use and value-added semiconductor solutions for power supplies, mobile, lighting, motor, computing, consumer and automotive applications. Along with the internal developments such as the PowerTrench® family of MOSFETs in 1998, Fairchild made many key acquisitions including the semiconductor division of Raytheon, Intersil’s discrete power business (making Fairchild the second largest power MOSFET supplier in the world), Impala Linear Corporation, Power Device Division of Samsung Electronics in South Korea, and System General of Taiwan.
Figure 3 summarizes the Fairchild power portfolio today. Fairchild’s key products for ac-dc, dc-dc and inverter solutions include:
With a long and rich history in the semiconductor industry, Fairchild is a leading global supplier of high performance power management products that maximize power efficiency at every opportunity. Additionally, Fairchild offers a wide portfolio of analog and power IP to support handset manufacturers’ specific requirements. These include complementary chipsets in signal path for audio, video, USB, and ASSP/logic and power management for peripheral cores, lighting and RF. The entrepreneurial spirit of the early Fairchild is alive and well today. Its leadership in energy efficient solutions and mobile connectivity makes Fairchild as important and relevant for the next 50 years as it has been for the last 50. Provided by Aung Thet Tu,
 Qspeed Semiconductor designs and manufactures discrete power semiconductors and currently sells the world's most efficient 300 V and 600 V ultrafast, Silicon rectifiers. Qspeed is a fab-less Semiconductor Company that is based in Santa Clara, California, the heart of Silicon Valley. Qspeed was founded in 2006, shortly after the first high-voltage (600 V), Silicon Carbide (SiC) Schottky diodes appeared on the market. Starting in the early 1990s, power supply manufacturers began putting active power factor correction (PFC) boost converter stages into their higher-power (500 W and up) power supplies, to make the supply's input current track its input voltage with a power factor that is close to one. Before 600 V SiC Schottky diodes were available, power supply designers used ultrafast Silicon (Si) rectifiers in their boost converters. The primary limitation of ultrafast Si diodes is the high amount of stored charge (Q) that must be removed from the device during its reverse recovery (Qrr). When a bipolar, Si rectifier is suddenly reverse biased while conducting a large amount of forward current, it cannot block the reverse voltage until it's cathode has been cleared of the minority carriers (holes) that the anode injects into it. As those minority carriers are swept back into the anode, they cause a transient reverse recovery current (Irr). The amount and duration of the Irr that is typical of standard ultrafast Si rectifiers causes power losses in the boost switch, which limits the overall efficiency of the stage and makes the diode the main component in need of performance improvement.
As the market demands for active power factor correction (PFC) and higher efficiency has continued to increase, Qspeed is developing products that address the needs of power supply designers. Since early 2006, Qspeed has designed several families of high-efficiency Si rectifiers, including a 300 V version of the Q-Series family and its newest family of 600 V devices, the H-Series. In total, Qspeed is now manufacturing and selling over 30 different devices that are specifically targeted for high efficiency, cost-effective solutions.
Qspeed has Sales and Distribution in Asia Pacific, Europe and the North America, along with strategically placed logistics hubs, for JIT delivery. For more information about Qspeed Semiconductor, visit our website at http://www.qspeed.com. Data sheets and Application Notes can be downloaded from the website, and samples of our products can be ordered, using our 'Request Samples' online form. Provided by John Jovalusky,
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