Source: http://www.google.com/patents/US7817464?dq=5311516
Timestamp: 2014-03-16 02:42:40
Document Index: 126142589

Matched Legal Cases: ['Application No. 200710103453', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'art 1']

Patent US7817464 - Phase change memory cell employing a GeBiTe layer as a phase change material ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA phase change memory cell includes an interlayer insulating layer formed on a semiconductor substrate, and a first electrode and a second electrode disposed in the interlayer insulating layer. A phase change material layer is disposed between the first and second electrodes. The phase change material...http://www.google.com/patents/US7817464?utm_source=gb-gplus-sharePatent US7817464 - Phase change memory cell employing a GeBiTe layer as a phase change material layer, phase change memory device including the same, electronic system including the same and method of fabricating the sameAdvanced Patent SearchPublication numberUS7817464 B2Publication typeGrantApplication numberUS 11/747,395Publication dateOct 19, 2010Filing dateMay 11, 2007Priority dateMay 19, 2006Also published asCN101075632A, US20070267721Publication number11747395, 747395, US 7817464 B2, US 7817464B2, US-B2-7817464, US7817464 B2, US7817464B2InventorsBong-Jin Kuh, Yong-ho Ha, Doo-Hwan Park, Jeong-hee Park, Han-Bong KOOriginal AssigneeSamsung Electronics Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (100), Non-Patent Citations (6), Referenced by (4), Classifications (19), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetPhase change memory cell employing a GeBiTe layer as a phase change material layer, phase change memory device including the same, electronic system including the same and method of fabricating the sameUS 7817464 B2Abstract A phase change memory cell includes an interlayer insulating layer formed on a semiconductor substrate, and a first electrode and a second electrode disposed in the interlayer insulating layer. A phase change material layer is disposed between the first and second electrodes. The phase change material layer may be an undoped GeBiTe layer, a doped GeBiTe layer containing an impurity or a doped GeTe layer containing an impurity. The undoped GeBiTe layer has a composition ratio within a range surrounded by four points (A1(Ge21.43, Bi16.67, Te61.9), A2(Ge44.51, Bi0.35, Te55.14), A3(Ge59.33, Bi0.5, Te40.17) and A4(Ge38.71, Bi16.13, Te45.16)) represented by coordinates on a triangular composition diagram having vertices of germanium (Ge), bismuth (Bi) and tellurium (Te). The doped GeBiTe layer contains an impurity and has a composition ratio within a range surrounded by four points (D1(Ge10, Bi20, Te70), D2(Ge30, Bi0, Te70), D3(Ge70, Bi0, Te30) and D4(Ge50, Bi20, Te30)) represented by coordinates on the triangular composition diagram.
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