摘要:
An isolation trench (60) may comprise a trench (20) formed in a semiconductor layer (12). A barrier layer (22) may be formed along the trench (20). A protective liner (50) may be formed over the barrier layer (22). The protective liner (50) may comprise a chemically deposited oxide. A high density layer of insulation material (55) may be formed in the trench (20) over the protective liner (50).
摘要:
A trench isolation structure including high density plasma enchanced silicon dioxide trench filling (122) with chemical mechanical polishing removal of non-trench oxide.
摘要:
An isolation trench (60) comprising a trench (20) formed in a semiconductor layer (12). A barrier layer (22) may be formed along the trench (20). A layer (50) of an insulation material may be formed over the barrier layer (22). A high density layer (55) of the insulation material may be formed in the trench (20) over the layer (50).
摘要:
Air-bridges are formed at controlled lateral separations using the extremely high HF etch rate of a gap-fill spin-on-glass such as uncured hydrogen silsequioxane (HSQ) in combination with other dielectrics having a much slower etch rate in HF. The advantages of an air-bridge system with controlled lateral separations include providing an interconnect isolation dielectric which meets all requirements for sub-0.5 micron technologies and providing a device with reduced reliability problems.
摘要:
A two-stage plasma enhance dielectric deposition with a first stage of low capacitively-coupled RF bias with conformal deposition (202) followed by high capacitively-coupled RF bias for planarizing deposition (204) limits the charge build up on the underlying structure (104, 106, 108).
摘要:
A process for forming controlled airgaps (22) between metal lines (16). A two-step high density plasma (HDP) chemical vapor deposition (CVD) process is used to form the silicon dioxide dielectric layer (20) with the controlled airgaps (22). The first step involves a high gas flow and low substrate bias conditions to deposit silicon dioxide with a high deposition to sputter etch ratio. The second step uses a low gas flow and high substrate bias condition to increase the sputter component of the deposition.
摘要:
A structure and method to further reduce the dielectric constant (capacitance) of high density plasma chemical vapor deposited silicon dioxide (SiO2 12). The dielectric constant of voids (i.e. air pockets) is close to k=1.0, and therefore the microvoids reduce the effective dielectric constant of the silicon dioxide 12. Use of HDPCVD conditions avoids residual hydrogen, which would degrade the dielectric constant.
摘要:
Deposition of titanium over fluoride-containing dielectrics requires the use of a method of passivation to prevent the formation of TiF4, which causes delamination of the metallization structure. Disclosed methods include the formation of layers of Al203, TiN, or Si3N4.
摘要翻译:在含氟化物的电介质上沉积钛需要使用钝化方法来防止形成TiF 4,这导致金属化结构的分层。 公开的方法包括形成Al 2 O 3,TiN或Si 3 N 4的层。
摘要:
A low-temperature pre-metal dielectric deposition process using phosphine-based chemistry in a high-density plasma chemical-vapor deposition technique. The process uses a phosphorous-doped oxide of up to 3.5 percent (wt) deposited at less than 350 degrees C. capable of filling 0.4 micron spaces between poly-silicon gates without microvoids.