http://www.silcongroup.com Just another WordPress weblog Sun, 01 Aug 2010 03:19:24 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 http://www.silcongroup.com/2010/02/28/design-process-that-produces-the-oxide-layer-on-the-silicon-wafer/ http://www.silcongroup.com/2010/02/28/design-process-that-produces-the-oxide-layer-on-the-silicon-wafer/#comments Sun, 28 Feb 2010 12:54:37 +0000 jedwan http://www.silcongroup.com/2010/02/28/design-process-that-produces-the-oxide-layer-on-the-silicon-wafer/ design process that produce the oxide layer on the silicon wafer?

]]> http://www.silcongroup.com/2010/02/28/design-process-that-produces-the-oxide-layer-on-the-silicon-wafer/feed/ 3 http://www.silcongroup.com/2010/02/09/what-are-the-difference-in-the-properties-between-the-silicon-substrate-and-the-oxide-layer/ http://www.silcongroup.com/2010/02/09/what-are-the-difference-in-the-properties-between-the-silicon-substrate-and-the-oxide-layer/#comments Tue, 09 Feb 2010 06:50:39 +0000 jedwan http://www.silcongroup.com/2010/02/09/what-are-the-difference-in-the-properties-between-the-silicon-substrate-and-the-oxide-layer/ Silicon substrate is essentially pure silicon, perhaps with some dopants added to alter its conducting properties. But, it’s a semiconductor. The oxide layer is silicon dioxide, which is a ceramic, so has no electrical conductivity.
Silicone substrate can be doped by adding other atoms to affect its conductivity. Silocon Dioxide is not affected by doping.

]]> http://www.silcongroup.com/2010/02/09/what-are-the-difference-in-the-properties-between-the-silicon-substrate-and-the-oxide-layer/feed/ 0 http://www.silcongroup.com/2009/12/31/what-is-the-product-when-when-calcium-oxide-and-silicon-dioxide-react/ http://www.silcongroup.com/2009/12/31/what-is-the-product-when-when-calcium-oxide-and-silicon-dioxide-react/#comments Thu, 31 Dec 2009 19:16:28 +0000 jedwan http://www.silcongroup.com/2009/12/31/what-is-the-product-when-when-calcium-oxide-and-silicon-dioxide-react/ Basically:
CaO + SiO2 → _____
↑
Sorry can’t do the little 2 after O
Please give the chemical formula as well as its name!
Thanks!!

]]> http://www.silcongroup.com/2009/12/31/what-is-the-product-when-when-calcium-oxide-and-silicon-dioxide-react/feed/ 4 http://www.silcongroup.com/2009/12/18/why-is-zinc-oxide-said-to-be-basic-what-type-of-oxides-are-silicon-oxide-and-nitrogen-monoxide/ http://www.silcongroup.com/2009/12/18/why-is-zinc-oxide-said-to-be-basic-what-type-of-oxides-are-silicon-oxide-and-nitrogen-monoxide/#comments Fri, 18 Dec 2009 07:04:56 +0000 jedwan http://www.silcongroup.com/2009/12/18/why-is-zinc-oxide-said-to-be-basic-what-type-of-oxides-are-silicon-oxide-and-nitrogen-monoxide/ Zinc oxide is basic because it has a lone pair of electrons on oxygen that can easily bond with a proton:
ZnO: + H+ –> [ZnO-H+]
Oxides like silicon dioxide and nitrogen oxide are also basic for the same reason as ZnO. As a matter of fact one of the best ways of cleaning glass is with a base bath, but it leaves the glass very basic (a lot of [K2SiO2]).
So if you want a ion free reaction (and product), you must first re-acidify the glassware with an acid rinse – (usually dilute H2SO4), and then rinse the glassware thoroughly with water until neutral.

]]> http://www.silcongroup.com/2009/12/18/why-is-zinc-oxide-said-to-be-basic-what-type-of-oxides-are-silicon-oxide-and-nitrogen-monoxide/feed/ 3 http://www.silcongroup.com/2009/10/04/where-do-you-get-aluminum-spray-or-silicon-oxide-spray-or-silicon-nitride-spray/ http://www.silcongroup.com/2009/10/04/where-do-you-get-aluminum-spray-or-silicon-oxide-spray-or-silicon-nitride-spray/#comments Sun, 04 Oct 2009 12:53:32 +0000 jedwan http://www.silcongroup.com/2009/10/04/where-do-you-get-aluminum-spray-or-silicon-oxide-spray-or-silicon-nitride-spray/ can anyone buy it?

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