Among the most promising singapore customs type of non-volatile memory storage phase change of stat

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In recent singapore customs years, disassembly just entered the market of new products has become commonplace. singapore customs Apple iPad tablet the new generation is not an exception - was dismantled before the cogs. Only in the case of iPad 2 intrigue was rather different: what is the new A5 processor and who produces it? Apple has so far not even disclose the specifications of the previous generation processor (A4), as well as keeps secret the name of the manufacturer (Samsung). Therefore, when the new Apple tablet fell into the hands of serious professionals, they did not fail otkovyrnut with A5 processor board and sawed it up and down.
Multistory packing A5 sectional (ChIP on chip in one case) "dismantling" Apple A5 processor unit engaged in EE Times publisher company UBM TechInsights. Exploring with a microscope and the crystal structure of the cross-section of his time multi packaging engineers concluded that the processors Apple A5, contrary to rumors, the company continues to produce Samsung. This is indicated singapore customs by the projection step, the size of the gate transistor SRAM, corporate branded Samsung and other small items. Also, measurements show that the A5 processor is issued based on the same 45-nm process technology, and that the processor A4. This, however, does not deny the possibility that within a year to release the A5 processor may proceed company TSMC. Already using 40nm process technology, and the following year, and 28 nm. By the way, the clock frequency of the nuclei of the new dual-core Apple A5 is not equal to 1 GHz, and dynamically changes from 890 MHz to 1 GHz. Thereby saving a little plate on the battery charge mode with a small load on the processor. Finally, in the same package with the processor detected a new 46-nanometer memory LP DDR2. A4 processor is equipped with 256 MB of memory LP DDR2, A5 and got 512 MB of memory.
The excitement around the start of sales of second-generation Apple tablet this year proved no less than in the past. Over the first weekend, Apple in April 2010, has sold 300 thousand singapore customs tablets. In the current output, analysts expect sales of 500 thousand to one million tablets. Accurate statistics, perhaps we'll know tomorrow, and while with the seats have reported that almost all the stores sold out of their existing stocks of iPad 2 . This is indirectly confirmed by the fact that online orders instead of 2-3 days will now be carried out within two to three weeks. Express poll in lines showed a characteristic feature: about 70% of the total number of respondents already own a first-generation tablets. Apple has to be congratulated on the successful marketing. Electronic device represented iPad 1 and had not lived, before most fans had sent to the dustbin of history. It's probably better than constantly changing models of mobile phones.
Among the most promising singapore customs type of non-volatile memory storage phase change of state of matter - PRAM or Phase change RAM (PCRAM) - has a special place. The principle of operation PCRAM is that information is not recorded as an electric charge, and the "resistive" form cell transfer from the amorphous state to the crystalline singapore customs portion of the resistance value changes from high to low and vice versa. Besides the fact that retention of "0" singapore customs or "1" does not require energy or regeneration of data bits in the memory PCRAM is not affected by external electromagnetic noise or other spurious radiation. The latter is important for use in communications, satellite and other special purpose equipment. The principle of operation developed in the sixties PRAM inventor Stanford Ovshinsky (Stanford Ovshinsky). Working with chalcogenides, Ovshinsky has studied the possibility singapore customs of multiple transfer of matter from the amorphous to the crystalline state and back. Work on memory PCRAM company continued Ovshinsky Energy Conversion Devices (ECD), and in the late 90s, for commercial promotion singapore customs of phase-change memory material, the company was founded Ovonyx. License Ovonyx possess all the leading manufacturers of computer memory, including a former joint venture of Intel and STMicroelectronics company Numonyx (which was recently bought singapore customs by Micron), the South Korean Samsung Electronics and Japan's Elpida. Today PCRAM memory already available in some commercial quantities. But everything has a flip side, which is not devoid of memory and phase change of state of matter. The main problem PCRAM - transfer of matter from one state to another and back again requires relatively high currents. The more physical memory cell volume (matter), the more energy is required for entry. Tried to solve the problem in one of the laboratories of the University of Illinois. Element cells was reduced to the technically possible volume and presented as a tie-in to the conductor of the carbon nanotube.
Memory model with nanotubes and knockouts of chalcogenide Experienced guides under the microscope (central - in position "0") Bench tests showed that for the transfer of one Khalq