摘要:
A method to remove metal contaminants in a substrate cleaning process. The present invention may replace or be used in conjunction with other substrate cleaning systems. This method comprises adding a citric acid solution to the liquid medium of a semiconductor substrate cleaning system. This method is described in the manner it is used in conjunction with a scrubber wherein both sides of a wafer are scrubbed.
摘要:
A method for treating a film of material, which can be defined on a substrate, e.g., silicon. The method includes providing a substrate comprising a cleaved surface, which is characterized by a predetermined surface roughness value. The substrate also has a distribution of hydrogen bearing particles defined from the cleaved surface to a region underlying said cleaved surface. The method also includes increasing a temperature of the cleaved surface to greater than about 1,000 Degrees Celsius while maintaining the cleaved surface in an etchant bearing environment to reduce the predetermined surface roughness value by about fifty percent and greater. Preferably, the value can be reduced by about eighty or ninety percent and greater, depending upon the embodiment.
摘要:
A method of fabricating substrates, e.g., bulk wafers, silicon on insulator wafers, silicon on saphire, optoelectronic substrates. The method includes providing a substrate (e.g., silicon, gallium arsenide, gallium nitride, quartz). The substrate has a film characterized by a non-uniform surface, which includes a plurality of defects. At least some of the defects are of a size ranging from about 100 Angstroms and greater. The method also includes applying a combination of a deposition species for deposition of a deposition material and an etching species for etching etchable material. The combination of the deposition species and the etching species contact the non-uniform surface in a thermal setting to reduce a level of non-uniformity of the non-uniform surface by filling a portion of the defects to smooth the film of material. The smoothed film of material is substantially free from the defects and is characterized by a surface roughness of a predetermined value.
摘要:
The present invention provides an apparatus (400) (500) for abating edge material from a substrate, e.g., SOI. The apparatus includes, among other elements, a housing and a rotatable member (401) coupled to the housing. The rotatable member is a susceptor, which is relatively flat for securing a substrate. A movable dispensing head (421) is coupled to the housing and is overlying the rotatable member. The movable dispensing head (421) is operable to emit a stream of directed fluid to one or more locations of the susceptor. The apparatus also includes a fluid source, which is coupled to the movable dispensing head. The fluid source provides fluid to ablate material from the substrate.
摘要:
A method for forming a strained layer of semiconductor material, e.g., silicon, germanium, Group III/V, silicon germanium alloy. The method includes providing a non-deformable surface region having a first predetermined radius of curvature, which is defined by R(1) and is defined normal to the surface region. The method includes providing a first substrate (e.g., silicon wafer) having a first thickness. Preferably, the first substrate has a face, a backside, and a cleave plane defined within the first thickness. The method includes a step of overlying the backside of the first substrate on a portion of the surface region having the predetermined radius of curvature to cause a first bend within the thickness of material to form a first strain within a portion of the first thickness. The method provides a second substrate having a second thickness, which has a face and a backside. The method includes a step of overlying the face of the second substrate on a portion of the face of the first substrate to cause a second bend within the thickness of material to form a second strain within a portion of the second thickness. A step of joining the face of the second substrate to the face of the first substrate form a sandwich structure while maintaining the first bend in the first substrate and the second bend in the second substrate. Preferably, joining occurs using a low temperature process such as plasma activated bonding or the like.
摘要:
A system for manufacturing multilayered substrates. The system has a support member is adapted to process a film of material comprising a first side and a second side from a first state to a second state. The support member is attached to the first side of the film of material. The second state comprises a stressed state. The system has a handle substrate comprising a face, which is adapted to be attached to the second side of the film of material. The support member is capable of being detached from the first side of the film of material thereby leaving the handle substrate comprising the film of material in the second state being attached to the face of the handle substrate.
摘要:
A method for forming a strained layer of semiconductor material, e.g., silicon, germanium, Group III/V, silicon germanium alloy. The method includes providing a non-deformable surface region having a first predetermined radius of curvature, which is defined by R(1) and is defined normal to the surface region. The method includes providing a first substrate (e.g., silicon wafer) having a first thickness. Preferably, the first substrate has a face, a backside, and a cleave plane defined within the first thickness. The method includes a step of overlying the backside of the first substrate on a portion of the surface region having the predetermined radius of curvature to cause a first bend within the thickness of material to form a first strain within a portion of the first thickness. The method provides a second substrate having a second thickness, which has a face and a backside. The method includes a step of overlying the face of the second substrate on a portion of the face of the first substrate to cause a second bend within the thickness of material to form a second strain within a portion of the second thickness. A step of joining the face of the second substrate to the face of the first substrate form a sandwich structure while maintaining the first bend in the first substrate and the second bend in the second substrate. Preferably, joining occurs using a low temperature process such as plasma activated bonding or the like.
摘要:
A method for treating a film of material, which can be defined on a substrate, e.g., silicon. The method includes providing a substrate comprising a cleaved surface, which is characterized by a predetermined surface roughness value. The substrate also has a distribution of hydrogen bearing particles defined from the cleaved surface to a region underlying said cleaved surface. The method also includes increasing a temperature of the cleaved surface to greater than about 1,000 Degrees Celsius while maintaining the cleaved surface in a etchant bearing environment to reduce the predetermined surface roughness value by about fifty percent and greater. Preferably, the value can be reduced by about eighty or ninety percent and greater, depending upon the embodiment.
摘要:
The present invention provides for treating a surface of a semiconductor material. The method comprises exposing the surface of the semiconductor material to a halogen etchant in a hydrogen environment at an elevated temperature. The method controls the surface roughness of the semiconductor material. The method also has the unexpected benefit of reducing dislocations in the semiconductor material.
摘要:
A method for forming a strained layer of semiconductor material, e.g., silicon, germanium, Group III/V, silicon germanium alloy. The method includes providing a non-deformable surface region having a first predetermined radius of curvature, which is defined by R(1) and is defined normal to the surface region. The method includes providing a first substrate (e.g., silicon wafer) having a first thickness. Preferably, the first substrate has a face, a backside, and a cleave plane defined within the first thickness. The method includes a step of overlying the backside of the first substrate on a portion of the surface region having the predetermined radius of curvature to cause a first bend within the thickness of material to form a first strain within a portion of the first thickness. The method provides a second substrate having a second thickness, which has a face and a backside. The method includes a step of overlying the face of the second substrate on a portion of the face of the first substrate to cause a second bend within the thickness of material to form a second strain within a portion of the second thickness. A step of joining the face of the second substrate to the face of the first substrate form a sandwich structure while maintaining the first bend in the first substrate and the second bend in the second substrate. Preferably, joining occurs using a low temperature process such as plasma activated bonding or the like.