摘要:
Patterned metal layers are gap filled with HSQ and passivated to stabilize the dielectric constant of the HSQ substantially at the as-deposited value prior to oxide deposition by PECVD and planarization. Passivation and stabilization are effected by treating the as--deposited HSQ layer in a silane (SiH.sub.4) containing plasma.
摘要:
A dielectric interlayer is formed over a semiconductor substrate comprising at least one active region. The exposed upper surface of the dielectric interlayer is treated with nitrogen to form a nitrided barrier layer thereon. At least one hydrogen-containing dielectric layer is formed over the dielectric interlayer having the nitrided barrier layer thereon. The nitrided barrier layer serves as a barrier to diffusion of hydrogen from the at least one hydrogen-containing dielectric layer into the dielectric interlayer, thereby preventing a decrease in hot carrier injection reliability.
摘要:
Spin-on HSQ is employed to gap fill metal layers in manufacturing a high density, multi-metal layer semiconductor device. The degradation of deposited HSQ layers during formation of borderless vias, as from photoresist stripping using an O.sub.2 -containing plasma, is overcome by treating the degraded HSQ layer with an H.sub.2 -containing plasma to restore the dangling Si--H bonds, thereby passivating the surface and preventing moisture absorption, before filling the via opening with conductive material, such as a barrier layer.
摘要:
Punch-through vias are filled by initially depositing a thin, conformal layer of titanium nitride by chemical vapor deposition to cover an exposed upper surface of a lower metal feature, e.g. portions exposed by penetrating and undercutting an anti-reflective coating. A metal such as tungsten is subsequently deposited to fill the punch-through via. Embodiments include thermal decomposition of an organic-titanium compound, such as tetrakis-dimethylamino titanium, and treating the deposited titanium nitride in an H2/N2 plasma to lower its resistivity. Moreover, the thickness of the anti-reflective coating can be reduced and the process window for etching the via widened.
摘要:
Spin-on HSQ is employed to gap fill metal layers in manufacturing a high density, multi-metal layer semiconductor device. The degradation of deposited HSQ layers during formation of borderless vias, as from photoresist stripping using an O.sub.2 -containing plasma, is overcome by treating the degraded HSQ layer with an H.sub.2 -containing plasma to restore the dangling Si--H bonds, thereby passivating the surface and preventing moisture absorption, before filling the via opening with conductive material, such as a barrier layer.
摘要:
A dielectric interlayer is formed over a semiconductor substrate comprising at least one active region. The exposed upper surface of the dielectric interlayer is treated with nitrogen to form a nitrided barrier layer thereon. At least one hydrogen-containing dielectric layer is formed over the dielectric interlayer having the nitrided barrier layer thereon. The nitrided barrier layer serves as a barrier to diffusion of hydrogen from the at least one hydrogen-containing dielectric layer into the dielectric interlayer, thereby preventing a decrease in hot carrier injection reliability.
摘要:
HSQ is employed for gap filling patterned metal layers. The surface of the deposited HSQ gap fill layer is modified to decrease its plasma etching rate. Embodiments include modifying the HSQ surface by exposure to a plasma, such as a nitrogen-containing plasma, e.g., a plasma containing ammonia or hydrogen/nitrogen, to form a nitrided surface region. Reduction of the plasma etching rate of HSQ enables formation of reliable low resistance borderless vias.
摘要:
Leading and trailing metal features in a dense array of conductive lines bordering an open field are formed with side surfaces that gradually taper in the direction of the open field toward an underlying substrate. Each side surface bordering the open field is formed with a sufficient slope to reduce cracking of the subsequently deposited dielectric gap fill layer at high stress areas bordering the open field.
摘要:
HSQ is employed for gap filling patterned metal layers. The surface of the deposited HSQ gap fill layer is modified to decrease its plasma etching rate. Embodiments include modifying the HSQ surface by exposure to a plasma, such as a nitrogen-containing plasma, e.g., a plasma containing ammonia or hydrogen/nitrogen, to form a nitrided surface region. Reduction of the plasma etching rate of HSQ enables formation of reliable low resistance borderless vias.
摘要:
A paintball assembly capable of retaining a paintball in a loading chamber using a paintball catcher is disclosed. The paintball assembly includes a loading chamber, a detent, and a bolt. The loading chamber is coupled to a loading port to receive paintballs. In one embodiment, the detent includes a paintball catcher capable of catching the paintball as it is loaded into the loading chamber. In one example, the paintball catcher is a flexible paintball catcher extending into the loading chamber and is able to catch the paintball and hold it in a predefined position. When a trigger is pulled, the bolt pushes the paintball into a firing chamber while the paintball catcher releases the paintball.