摘要:
A silicon-on-insulator device has a localized biasing structure formed in the insulator layer of the SOI. The localized biasing structure includes a patterned conductor that provides a biasing signal to distinct regions of the silicon layer of the SOI. The conductor is recessed into the insulator layer to provide a substantially planar interface with the silicon layer. The conductor is connected to a bias voltage source. In an embodiment, a plurality of conductor is provided that respectively connected to a plurality of voltage sources. Thus, different regions of the silicon layer are biased by different bias signals.
摘要:
Sacrificial plugs for forming contacts in integrated circuits, as well as methods of forming connections in integrated circuit arrays are disclosed. Various pattern transfer and etching steps can be used to create densely-packed features and the connections between features. A sacrificial material can be patterned in a continuous zig-zag line pattern that crosses word lines. Planarization can create parallelogram-shaped blocks of material that can overlie active areas to form sacrificial plugs, which can be replaced with conductive material to form contacts.
摘要:
Methods of pitch doubling of asymmetric features and semiconductor structures including the same are disclosed. In one embodiment, a single photolithography mask may be used to pitch double three features, for example, of a DRAM array. In one embodiment, two wordlines and a grounded gate over field may be pitch doubled. Semiconductor structures including such features are also disclosed.
摘要:
Sacrificial plugs for forming contacts in integrated circuits, as well as methods of forming connections in integrated circuit arrays are disclosed. Various pattern transfer and etching steps can be used to create densely-packed features and the connections between features. A sacrificial material can be patterned in a continuous zig-zag line pattern that crosses word lines. Planarization can create parallelogram-shaped blocks of material that can overlie active areas to form sacrificial plugs, which can be replaced with conductive material to form contacts.
摘要:
Methods of pitch doubling of asymmetric features and semiconductor structures including the same are disclosed. In one embodiment, a single photolithography mask may be used to pitch double three features, for example, of a DRAM array. In one embodiment, two wordlines and a grounded gate over field may be pitch doubled. Semiconductor structures including such features are also disclosed.
摘要:
A silicon-on-insulator device has a localized biasing structure formed in the insulator layer of the SOI. The localized biasing structure includes a patterned conductor that provides a biasing signal to distinct regions of the silicon layer of the SOI. The conductor is recessed into the insulator layer to provide a substantially planar interface with the silicon layer. The conductor is connected to a bias voltage source. In an embodiment, a plurality of conductor is provided that respectively connected to a plurality of voltage sources. Thus, different regions of the silicon layer are biased by different bias signals.
摘要:
The invention includes methods of forming recessed access devices. A substrate is provided to have recessed access device trenches therein. A pair of the recessed access device trenches are adjacent one another. Electrically conductive material is formed within the recessed access device trenches, and source/drain regions are formed proximate the electrically conductive material. The electrically conductive material and source/drain regions together are incorporated into a pair of adjacent recessed access devices. After the recessed access device trenches are formed within the substrate, an isolation region trench is formed between the adjacent recessed access devices and filled with electrically insulative material to form a trenched isolation region.
摘要:
The invention encompasses DRAM constructions, capacitor constructions, integrated circuitry, and methods of forming DRAM constructions, integrated circuitry and capacitor constructions. The invention encompasses a method of forming a capacitor wherein: a) a first layer is formed; b) a semiconductive material masking layer is formed over the first layer; c) an opening is etched through the masking layer and first layer to a node; d) a storage node layer is formed within the opening and in electrical connection with the masking layer; e) a capacitor storage node is formed from the masking layer and the storage node layer; and f) a capacitor dielectric layer and outer capacitor plate are formed operatively proximate the capacitor storage node.
摘要:
The invention includes methods of forming field effect transistor gates. In one implementation, a series of layers is formed proximate a semiconductive material channel region. The layers comprise a gate dielectric layer and a conductive metal-comprising layer having an ion implanted polysilicon layer received therebetween. Patterned masking material is formed over the series of layers. Using the patterned masking material as a mask, etching is conducted through the conductive metal-comprising layer and only partially into the ion implanted polysilicon layer. After such etching, the ion implanted polysilicon is annealed effective to electrically activate implanted impurity atoms received therein. Other aspects and implementations are contemplated.
摘要:
According to one embodiment of the invention, a high pressure anneal is utilized to form titanium silicide at the bottom of a contact hole, at a pressure of at least approximately 1.1 atmospheres, from a reaction between deposited titanium and underlying silicon. When such high pressures are used, temperatures of less than approximately 700 degrees Celsius are utilized. According to another embodiment of the invention, a conductive plug fill material is deposited within a contact hole such that the plug structure is relatively free of voids. Either during deposition of the conductive plug fill material or after such deposition, the conductive plug fill material is subjected to a high pressure force-fill, at a pressure of at least approximately 1.1 atmospheres. When such high pressures are used, temperatures of less than approximately 700 degrees Celsius are utilized for the force-fill. Aluminum can be used for the conductive plug fill material when using this embodiment of the invention. In further embodiments, dielectrics deposited between conductive layers are reflowed at high pressure and low temperature. Still further, multiple metalized layers are connected by vias filled with conductive material using high pressure and low temperature.