摘要:
Encapsulating areas of metallization in a liner material, such as Tantalum, Tantalum Nitride, Silicon Carbide allows aggressive or harsh processing steps to be used. These aggresive processing steps offer the possibility of fabricating new device architectures. In addition, by encapsulating the areas of metallization, metal ion migration and electromigration can be prevented. Further, the encapsulated areas of metallization can serve as a self-aligning etch mask. Thus, vias etched between adjacent areas of metallization allow the area of the substrate allocated to the via to be significantly reduced without increasing the possibility of electrical shorts to the adjacent areas of metallization.
摘要:
A method for fabricating a synthetic antiferromagnetic device, includes depositing a magnesium oxide spacer layer on a reference layer having a first and second ruthenium layer, depositing a cobalt iron boron layer on the magnesium oxide spacer layer; and depositing a third ruthenium layer on the cobalt iron boron layer, the third ruthenium layer having a thickness of approximately 0-18 angstroms.
摘要:
A synthetic antiferromagnetic device includes a first tantalum layer, a reference layer disposed on the first tantalum layer and including a first cobalt iron boron layer, a second cobalt iron boron layer disposed on the first cobalt iron boron layer, a third cobalt iron boron layer and a second tantalum layer disposed between the second and third cobalt iron boron layers, a magnesium oxide spacer layer disposed on the reference layer and a cap layer disposed on the magnesium oxide spacer layer.
摘要:
A synthetic antiferromagnetic device includes a reference layer having a first and second ruthenium layer, a magnesium oxide spacer layer disposed on the reference layer, a cobalt iron boron layer disposed on the magnesium oxide spacer layer and a third ruthenium layer disposed on the cobalt iron boron layer, the third ruthenium layer having a thickness of approximately 0 angstroms to 18 angstroms.
摘要:
A memory device comprising a plurality of tunnel junctions (TJs) includes a bottom wiring layer; a top wiring layer; a plurality of TJs contacting the bottom wiring layer and the top wiring layer; and a plurality of tunnel junction vias (TJVs) contacting the bottom wiring layer and the top wiring layer, wherein the plurality of TJVs each have a lower resistance the each of the plurality of TJs, wherein the plurality of TJVs comprise at least one concave surface, and wherein the at least one concave surface of the plurality of TJVs is configured to trap etched material during formation of the TJVs so as to reduce the resistance of the plurality of TJVs.
摘要:
A device comprising a diblock copolymer mask for fabricating a magnetoresistive random access memory (MRAM) includes a magnetic layer; a mask formed on the magnetic layer; a template formed on the mask; and the diblock copolymer mask, the diblock copolymer mask comprising a first plurality of uniform shapes formed on and registered to the template.
摘要:
A magnetic domain wall memory apparatus with write/read capability includes a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic material having a plurality of magnetic domains therein, the shift register structures further having a plurality of discontinuities therein to facilitate domain wall location; a magnetic read element associated with each of the shift register structures; and a magnetic write element associated with each of the shift register structures, the magnetic write element further comprising a write wire having a constriction therein, the constriction located at a point corresponding to the location of the plurality of discontinuities in the associated shift register structure.
摘要:
A method for forming a tunnel junction (TJ) circuit, the method includes forming a bottom wiring layer; forming a plurality of TJs contacting the bottom wiring layer; forming a plurality of tunnel junction vias (TJVs) simultaneously with the formation of the plurality of TJs, the TJVs contacting the bottom wiring layer; and forming a top wiring layer contacting the plurality of TJs and the plurality of TJVs. A circuit comprising a plurality of tunnel junctions (TJs) includes a bottom wiring layer contacting the plurality of TJs, the bottom wiring layer further contacting a plurality of tunnel junction vias (TJVs), wherein the plurality of TJs and the plurality of TJVs comprise the same material; and a top wiring layer contacting the plurality of TJs and the plurality of TJVs.
摘要:
A magnetic random access memory (MRAM) device includes a magnetic tunnel junction (MTJ) stack formed over a lower wiring level, a hardmask formed on the MTJ stack, and an upper wiring level formed over the hardmask. The upper wiring level includes a slot via bitline formed therein, the slot via bitline in contact with the hardmask and in contact with an etch stop layer partially surrounding sidewalls of the hardmask.
摘要:
A method of forming a stochastically based integrated circuit encryption structure includes forming a lower conductive layer over a substrate, forming a short prevention layer over the lower conductive layer, forming an intermediate layer over the short prevention layer, wherein the intermediate layer is characterized by randomly structured nanopore features. An upper conductive layer is formed over the random nanopore structured intermediate layer. The upper conductive layer is patterned into an array of individual cells, wherein a measurable electrical parameter of the individual cells has a random distribution from cell to cell with respect to a reference value of the electrical parameter.