发明授权
US08557627B2 Methods of forming a phase change layer and methods of fabricating a phase change memory device including the same 有权
形成相变层的方法和制造包括该相变层的相变存储器件的方法

Methods of forming a phase change layer and methods of fabricating a phase change memory device including the same
摘要:
A phase change structure includes a first phase change material layer pattern and a second phase change material layer pattern. The first phase change material layer pattern may partially fill a minute structure, and the second phase change material layer pattern may fully fill the minute structure. The first phase change material layer pattern may include a first phase change material, and the second phase change material layer pattern may include a second phase change material having a composition substantially different from a composition of the first phase change material.
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