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Mask Inspection
In microtechnology, mask inspection or photomask inspection is an operation of checking the correctness of the fabricated photomasks, used, e.g., for semiconductor device fabrication Semiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuit (IC) chips such as modern computer processors, microcontrollers, and memory chips such as NAND flash and DRAM that are pres .... Modern technologies for locating defects in photomasks are automated systems that involve scanning electron microscopy and other advanced tools. Mask data inspection The term "mask inspection" may also informally refer to mask data inspection step performed before actual writing the real mask."Design for manufacturability and yield for nano-scale CMOS", by Charles Chiang, Jamil Kawa, 2007, ,p. 237/ref> Other methods of inspection use specially constructed light microscope systems such as are available from Probing Solutions Inc. These rely on white l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microtechnology
Microtechnology deals with technology whose features have dimensions of the order of one micrometre (one millionth of a metre, or 10−6 metre, or 1μm). It focuses on physical and chemical processes as well as the production or manipulation of structures with one-micrometre magnitude. Development Around 1970, scientists learned that by arraying large numbers of microscopic transistors on a single chip, microelectronic circuits could be built that dramatically improved performance, functionality, and reliability, all while reducing cost and increasing volume. This development led to the Information Revolution. More recently, scientists have learned that not only electrical devices, but also mechanical devices, may be miniaturized and batch-fabricated, promising the same benefits to the mechanical world as integrated circuit technology has given to the electrical world. While electronics now provide the ‘brains’ for today's advanced systems and products, micro-mechanical devic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photomask
A photomask is an opaque plate with holes or transparencies that allow light to shine through in a defined pattern. They are commonly used in photolithography and the production of integrated circuits (ICs or "chips") in particular. Masks are used to produce a pattern on a substrate, normally a thin slice of silicon known as a wafer in the case of chip manufacturing. Several masks are used in turn, each one reproducing a layer of the completed design, and together they are known as a mask set. Previously, photomasks used to be produced manually by using rubylith and mylar. As complexity continued to grow, manual processing of any sort became difficult. This was solved with the introduction of the optical pattern generator which automated the process of producing the initial large-scale pattern, and the step-and-repeat cameras that automated the copying of the pattern into a multiple-IC mask. The intermediate masks are known as reticles, and were initially copied to production mas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor Device Fabrication
Semiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuit (IC) chips such as modern computer processors, microcontrollers, and memory chips such as NAND flash and DRAM that are present in everyday electrical and electronics, electronic devices. It is a multiple-step sequence of Photolithography, photolithographic and chemical processing steps (such as surface passivation, thermal oxidation, planar process, planar diffusion and p–n junction isolation, junction isolation) during which electronic circuits are gradually created on a wafer (electronics), wafer made of pure semiconducting material. Silicon is almost always used, but various compound semiconductors are used for specialized applications. The entire manufacturing process takes time, from start to packaged chips ready for shipment, at least six to eight weeks (tape-out only, not including the circuit design) and is performed in highly specialized semiconduct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yasuo Tarui
Yasuo is a masculine Japanese given name. Possible writings Yasuo can be written using many different combinations of kanji characters. Here are some examples: *安雄, "tranquil, male" *安男, "tranquil, man" *安夫, "tranquil, husband" *安生, "tranquil; life" *保夫, "preserve, husband" *康郎, "healthy, son" *靖男, "peaceful, man" *泰雄, "peaceful, male" *八洲夫, "eight, continent, husband." The name can also be written in hiragana やすお or katakana ヤスオ. People with the name *Yasuo Aiuchi (相内 康夫, born 1971), Japanese snowboarder *Yasuo Fukuda (福田 康夫, born 1936), the 58th Prime Minister of Japan, serving from 2007 to 2008 *Yasuo Furuhata (降旗 康男, born 1934), Japanese film director *Yasuo Hamanaka (浜中 泰男, born 1950), formerly the chief copper trader at Sumitomo Corporation *Yasuo Ichikawa (一川 保夫, born 1942), Japanese politician of the Democratic Party of Japan *Yasuo Iwata (岩田 安生, 1942–2009), Japanese voice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
