Abstract:
Methods of replacing/reforming a top oxide around a charge storage element of a memory cell and methods of improving quality of a top oxide around a charge storage element of a memory cell are provided. The method can involve removing a first poly over a first top oxide from the memory cell; removing the first top oxide from the memory cell; and forming a second top oxide around the charge storage element. The second top oxide can be formed by oxidizing a portion of the charge storage element or by forming a sacrificial layer over the charge storage element and oxidizing the sacrificial layer to a second top oxide.
Abstract:
A semiconductor fabrication system and method are presented. A three dimensional multilayer integrated circuit fabrication method can include forming a first device layer and forming a second device layer on top of the first device layer with minimal detrimental heat transfer to the first layer by utilizing a controlled laser layer formation annealing process. A controlled laser crystallization process can be utilized and the controlled laser can include creating an amorphous layer; defining a crystallization area in the amorphous layer, where in the crystallization area is defined to promote single crystal growth (i.e. prevent multi-crystalline growth); and applying laser to the crystallization area, wherein the laser is applied in a manner that prevents undesired heat transfer to another layer.
Abstract:
A semiconductor fabrication system and method are presented. A three dimensional multilayer integrated circuit fabrication method can include forming a first device layer and forming a second device layer on top of the first device layer with minimal detrimental heat transfer to the first layer by utilizing a controlled laser layer formation annealing process. A controlled laser crystallization process can be utilized and the controlled laser can include creating an amorphous layer; defining a crystallization area in the amorphous layer, where in the crystallization area is defined to promote single crystal growth (i.e. prevent multi-crystalline growth); and applying laser to the crystallization area, wherein the laser is applied in a manner that prevents undesired heat transfer to another layer.
Abstract:
Methods for fabricating a FIN structure with a semicircular top surface and rounded top surface corners and edges are disclosed. As a part of a disclosed method, a FIN structure is formed in a semiconductor substrate. The FIN structure includes a top surface having corners and edges. The FIN structure is annealed where the annealing causes the top surface to have a semicircular shape and the top surface corners and edges to be rounded.
Abstract:
A method for forming an integrated circuit system is provided including forming a substrate; forming a stack over the substrate, the stack having a sidewall and formed from a charge trap layer and a semi-conducting layer; and slot plane antenna oxidizing the stack for forming a protection enclosure having a protection layer along the sidewall.
Abstract:
A memory device includes a group of memory cells formed on a substrate, each memory cell including a source region and a drain region formed in the substrate. The memory device also includes a protection layer formed on top surfaces of the source regions and the drain regions, and on side surfaces of the group of memory cells.
Abstract:
A method for manufacturing a MirrorBit® Flash memory includes providing a semiconductor substrate and successively depositing a first insulating layer, a charge-trapping layer, and a second insulating layer. First and second bitlines are implanted and wordlines are formed before completing the memory. Spacers are formed between the wordlines and an inter-layer dielectric layer is formed over the wordlines. One or more of the second insulating layer, wordlines, spacers, and inter-layer dielectric layers are deuterated, replacing hydrogen bonds with deuterium, thus improving data retention and substantially reducing charge loss.
Abstract:
Methods for fabricating a FIN structure with a semicircular top surface and rounded top surface corners and edges are disclosed. As a part of a disclosed method, a FIN structure is formed in a semiconductor substrate. The FIN structure includes a top surface having corners and edges. The FIN structure is annealed where the annealing causes the top surface to have a semicircular shape and the top surface corners and edges to be rounded.
Abstract:
An embodiment of the present invention is directed to a memory cell. The memory cell includes a stack formed over a substrate. The stack includes a gate oxide layer and an overlying polycrystalline silicon layer. The stack further includes first and second undercut regions formed under the polycrystalline silicon layer and adjacent to the gate oxide layer. The memory cell further includes a first charge storage element formed in the first undercut region and a second charge storage element formed in the second undercut region.
Abstract:
The present invention, in one embodiment, relates to a process for fabricating a charge trapping dielectric flash memory device including steps of providing a semiconductor substrate having formed thereon a gate stack comprising a charge trapping dielectric charge storage layer and a control gate electrode overlying the charge trapping dielectric charge storage layer; forming an oxide layer over at least the gate stack; and depositing a spacer layer over the gate stack, wherein the depositing step deposits a spacer material having a reduced hydrogen content relative to a hydrogen content of a conventional spacer material.