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Large scale synthesis of germanium selenide glass and germanium selenide glass compounds

A compound, germanium selenide technology, applied in glass furnace equipment, glass manufacturing equipment, furnaces, etc., can solve the problems of changing the electrical characteristics and performance of PCRAM devices, and there is no known technology for large-scale synthesis of germanium selenide glass

Inactive Publication Date: 2008-08-06
MICRON TECH INC
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Such changes and unpredictable doping levels can unpredictably and often undesirably alter the electrical characteristics and performance of fabricated PCRAM devices.
[0006] Furthermore, similar to the synthesis of germanium glass, there is no known technique for synthesizing germanium selenide glass on a large scale

Method used

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  • Large scale synthesis of germanium selenide glass and germanium selenide glass compounds
  • Large scale synthesis of germanium selenide glass and germanium selenide glass compounds
  • Large scale synthesis of germanium selenide glass and germanium selenide glass compounds

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Embodiment Construction

[0031] According to the stoichiometric amount of synthetic glass, the present invention preferably can produce more than about 750 grams of germanium selenide glass per reaction. For synthesis of about 400 g, the reaction takes about 8 hours. For the synthesis of about 30 grams of germanium-selenium-manganese compound (Ge 2 Se 75 ; 3 atomic weight percent manganese), the reaction takes about 6 hours. Depending on the selected variable elemental composition and the ratio of germanium and selenium to each other and to the variable elemental composition ratio, the present invention can also produce more than about 750 grams of germanium selenide glass compound. Initial cleaning of the equipment is important and is not included in the reaction time.

[0032] According to the present invention, suitable variable elemental compositions for germanium selenide glass compounds include lithium, vanadium, chromium, manganese, cobalt, molybdenum, ruthenium, silver, praseodymium, neodym...

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Abstract

Systems and methods for large scale synthesis of germanium selenide glass and germanium selenide glass compounds are provided. Up to about 750 grams of a germanium selenide glass or a glass compound can be synthesized at a time in about eight hours or less. Stoichiometrically proportional amounts of germanium and selenium are placed in an ampoule. A variable may also be placed in the ampoule. The ampoule is heated to above the softening temperature of the glass or glass compound being synthesized. The ampoule is then rocked for a period of time while the temperature is held constant. The temperature of the ampoule is then brought down to above the softening temperature of the glass or glass compound being synthesized and then quenched.

Description

Background of the invention [0001] The invention relates to a device and method for synthesizing germanium selenide glass and a germanium selenide glass compound. More specifically, the present invention relates to a device and method for large-scale synthesis of germanium selenide glass and germanium selenide glass compound in a shorter time. The germanium selenide glass compound referred to herein contains germanium, selenium, and variable elemental components (eg, dopants). [0002] Germanium selenide glass is widely used in the manufacture of semiconductor devices. However, in the known preparation of a class of germanium selenide glass Ge 3 Se 7 In the current technology, only 10 grams of this glass can be prepared at a time. In addition, this method requires about 50 hours to prepare the 10 grams of germanium selenide glass. [0003] This known technique involves placing stoichiometric amounts of germanium and selenium (not more than about 10 grams in total) in an a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/06C03C3/32C03B8/00
CPCC03C3/321C03B5/06Y10S65/15C03B5/16C03C3/32
Inventor S·乌伦布罗克
Owner MICRON TECH INC
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