Abstract:
An embodiment includes a semiconductor apparatus comprising: a trench with an aspect ratio of at least 7:1 (height: width); and a dielectric included in the trench; wherein the dielectric: (a) includes carbon and at least one of silicon nitride and silicon carbide, and (b) does not include an oxide. Other embodiments are described herein.
Abstract:
一种应用于III-V族衬底的复合栅介质层(2)及其制作方法,该复合栅介质层(2)包括:形成于III-V族衬底(1)之上的Al x Y 2-x O 3 界面钝化层(23),以及形成于该Al x Y 2-x O 3 界面钝化层(23)之上的高介电绝缘层(24),其中1.2≤x≤1.9。该复合栅介质层(2)通过调整Al x Y 2-x O 3 界面钝化层(23)的Al/Y比例,改变了Al x Y 2-x O 3 界面钝化层(23)中的平均原子配位数,降低了III-V族衬底(1)界面态密度和边界陷阱密度,增加了MOS沟道迁移率;通过Al x Y 2-x O 3 界面钝化层(23)与高介电绝缘层(24)的配合,减小了栅漏电流,并提升了介质层的耐压能力,提高了III-V族衬底(1)MOS电容的质量和增强了其可靠性。
Abstract:
Provided is the under layer film excellent in the surface planarity. An under layer film-forming composition for imprints comprising a (meth)acrylic resin (A) containing an ethylenic unsaturated group(P) and a nonionic hydrophilic group (Q), and having a weight average molecular weight of 1,000 or larger; and a solvent (B), the resin(A) having an acid value of smaller than 1.0 mmol/g, and an under layer film-forming composition for imprints comprising a (meth)acrylic resin (A2) containing an ethylenic unsaturated group (P), and containing, as a nonionic hydrophilic group (Q), a cyclic substituent (Q2) having a carbonyl group in the cyclic structure thereof, with a weight average molecular weight of 1,000 or larger; and a solvent (B).
Abstract:
In a method for forming ferroelectric thin films of vinylidene fluoride oligomer or vinylidene fluoride co-oligomer, oligomer material is evaporated in vacuum chamber and deposited as a thin film on a substrate which is cooled to a temperature in a range determined by process parameters and physical properties of the deposited VDF oligomer or co-oligomer thin film. In an application of the method of the invention for fabricating ferroelectric memory cells or ferroelectric memory devices, a ferroelectric memory material is provided in the form of a thin film of VDF oligomer or VDF co-oligomer located between electrode structures. A ferroelectric memory cell or ferroelectric memory device fabricated in this manner has the memory material in the form of a thin film of VDF oligomer or VDF co-oligomer provided on at least one of first and second electrode structures, such that the thin film is provided on at least one of the electrode structures or between first and second electrode structures.
Abstract:
Thin films for use as dielectric in semiconductor and other devices are prepared from silica zeolites, preferably pure silica zeolites such as pure-silica MFI. The films have low k values, generally below about 2.7, ranging downwards to k values below 2.2. The films have relatively uniform pore distribution, good mechanical strength and adhesion, are relatively little affected by moisture, and are thermally stable. The films may be produced from a starting zeolite synthesis or precursor composition containing a silica source and an organic zeolite structure-directing agent such as a quaternary ammonium hydroxide. In one process the films are produced from the synthesis composition by in-situ crystallization on a substrate. In another process, the films are produced by spin-coating, either through production of a suspension of zeolite crystals followed by redispersion by in-situ crystallization or by using an excess of the alkanol produced in preparing the synthesis composition. Zeolite films having patterned surfaces may also be produced.
Abstract:
A method of forming a high dielectric oxide film conventionally formed using a post formation oxygen anneal to reduce the leakage current of such film includes forming a high dielectric oxide film on a surface. The high dielectric oxide film has a dielectric constant greater than about 4 and includes a plurality of oxygen vacancies present during the formation of the film. The high dielectric oxide film is exposed during the formation thereof to an amount of atomic oxygen sufficient for reducing the number of oxygen vacancies and eliminating the post formation oxygen anneal of the high dielectric oxide film. Further, the amount of atomic oxygen used in the formation method may be controlled as a function of the amount of oxygen incorporated into the high dielectric oxide film during the formation thereof or be controlled as a function of the concentration of atomic oxygen in a process chamber in which the high dielectric oxide film is being formed. An apparatus for forming the high dielectric oxide film is also described.
Abstract:
A method of manufacturing a semiconductor structure includes forming a stack of alternating layers comprising insulating layers and spacer material layers over a semiconductor substrate, forming a memory opening through the stack, forming an aluminum oxide layer having a horizontal portion at a bottom of the memory opening and a vertical portion at least over a sidewall of the memory opening, where the horizontal portion differs from the vertical portion by at least one of structure or composition, and selectively etching the horizontal portion selective to the vertical portion.
Abstract:
Embodiments of the current invention include methods of forming a strontium titanate (SrTiO 3 ) film using atomic layer deposition (ALD). More particularly, the method includes forming a plurality of titanium oxide (TiO 2 ) unit films using ALD and forming a plurality of strontium oxide (SrO) unit films using ALD. The combined thickness of the TiO 2 and SrO unit films is less than approximately 5 angstroms. The TiO 2 and SrO units films are then annealed to form a strontium titanate layer.
Abstract translation:本发明的实施方案包括使用原子层沉积(ALD)形成钛酸锶(SrTiO 3)膜的方法。 更具体地说,该方法包括使用ALD形成多个氧化钛(TiO 2)单元膜并使用ALD形成多个氧化锶(SrO)单元膜。 TiO 2和SrO单元膜的组合厚度小于约5埃。 然后将TiO 2和SrO单元膜退火以形成钛酸锶层。