PPT-Structure and Bonding of Carbon and Silicon

Topic 429 4210 2 characteristics some elements from group 4 are giant molecules carbon and silicon insoluble in almost all solvents h igh melting and boiling points Carbon allotropes . Preshower. for the CMS: BARC Participation . Anita . Topkar. BARC. CMS Preshower Detector. End caps of . CMS detector has ~4300 . silicon . strip detectors covering . area . of~17 . m. 2 . . BARC . . Will it contribute to energy independence. ?. . Mustafa KOCAMAN, Taha ÖNGEL. May 08, 2013. Solar . cells are devices which convert solar light energy directly into electricity and function by the photovoltaic effect.  Photo- means light and -voltaic means electrical current or electricity  (light-electricity).  A solar cell provides direct current (DC) electricity that can be used to power DC motors and light bulbs among other things.  Solar cells can even be used to charge rechargeable batteries so that electricity can be stored for later use when the sun is not available. The fully charged batteries are portable energy that can be used whenever and wherever they are needed. Localisation. using. MAX-SAT & Backbones. Georg Weissenbacher. Charlie . Shucheng. Zhu, . Sharad. . Malik. Princeton University. (Photo: Intel Press Kit). Where did things go wrong?. Intel Pentium FDIV Bug 1994. After procuring raw sand and separating the silicon, the excess material is disposed of and the silicon is purified in multiple steps to finally reach semiconductor manufacturing quality which is called electronic grade silicon. The resulting purity is so great that electronic grade silicon may only have one alien atom for every one billion silicon atoms. After the purification process, the silicon enters the melting phase. In this picture you can see how one big crystal is grown from the purified silicon melt. The resulting mono-crystal is called an ingot.. Metals. Look at the Periodic Table…. 75% of elements are metals!. Metals. They can vary a lot…. General Properties of Metals. Dense. Malleable. Ductile. Good conductors of heat and electricity. Shiny Lustre. nanocrystals. doped with P, Li, S. N.V. . Derbeneva. , . V.A. . Burdov. Lobachevsky. State University of Nizhniy Novgorod. Published data . by other authors . on . radiative. recombination lifetimes. IB Topics 4 & 14. Text:. Ch 8 (all except sections 4,5 & 8). Ch 9.1 & 9.5. Ch 10.1-10.7. My Name is Bond. Chemical Bond. PART 5: Giant Covalent Structures, Metallic Bonding & Physical Properties. 4.4.1: Describe the metallic bond as the electrostatic attraction between a lattice of positive ions and delocalized ions. . 4.4.2. : Explain the electrical conductivity and malleability of metals. . Silicon wafer. www.guardian.co.uk. http://. mrsec.wisc.edu. en.wikipedia.org. Wafers are cut from . boules. , . which are large . logs . of uniform . silicon.. Looking at this picture, . where. do you think silicon . Swaroop K. Behera. 1. , . Shvetashwa. Suri. 1. Pradeep Rohatgi. 1. , Nathan Salowitz. 2. 1. Department of Material Science and Engineering, UW-Milwaukee . 2. Department of Mechanical Engineering , UW-Milwaukee. Silicon wafer. www.guardian.co.uk. http://. mrsec.wisc.edu. en.wikipedia.org. Wafers are cut from . boules. , . which are large . logs . of uniform . silicon.. Looking at this picture, . where. do you think silicon . it—Part 1. Explain . how single crystalline Si wafers are made . Describe . the crystalline structure of Si . Find . the . Miller indices. of a planes and directions in crystals and give the most important direction/planes in silicon . Jordan . Radice. jordanra@buffalo.edu. Advanced . VLSI. Spring 2015. Dr. Ram Sridhar. Background. Moore’s Law (As we all know): Doubling of transistors every 1.5 ~ 2.0 years.. Dennard scaling works in conjunction with Moore’s law in that we maintain the overall power density of the chip area despite the exponential increase in transistors.. Ionic bonds form a . giant lattice structure. Sodium chloride is an ionic compound formed by the reaction between the metal sodium and the non-metal chlorine.. During the reaction, one electron is transferred from each sodium atom to each chlorine atom..