Abstract:
A segmented edge protection shield for plasma dicing a wafer. The segmented edge protection shield includes an outer structure and a plurality of plasma shield edge segments. The outer structure defines an interior annular edge configured to correspond to the circumferential edge of the wafer. Each one of the plurality of plasma shield edge segments is defined by an inner edge and side edges. The inner edge is interior to and concentric to the annular edge of the outer structure. The side edges extend between the inner edge and the annular edge.
Abstract:
A method of forming a semiconductor device includes forming an active region in a first side of a silicon carbide substrate, the silicon carbide substrate having a second side opposite the first side and forming a contact pad at the first side. The contact pad is coupled to the active region. The method further includes forming an etch stop layer over the contact pad and plasma dicing the silicon carbide substrate from the second side. The plasma dicing etches through the silicon carbide substrate and stops on the etch stop layer. The diced silicon carbide substrate is held together by the etch stop layer. The diced silicon carbide substrate is attached on a carrier. The diced silicon carbide substrate is separated into silicon carbide dies by cleaving the etch stop layer.
Abstract:
In one embodiment, a method of forming a current sensor device includes forming a device region comprising a magnetic sensor within and/or over a semiconductor substrate. The device region is formed adjacent a front side of the semiconductor substrate. The back side of the semiconductor substrate is attached over an insulating substrate, where the back side is opposite the front side. Sidewalls of the semiconductor substrate are exposed by dicing the semiconductor substrate from the front side without completely dicing the insulating substrate. An isolation liner is formed over all of the exposed sidewalls of the semiconductor substrate. The isolation liner and the insulating substrate include a different material. The method further includes separating the insulating substrate to form diced chips, removing at least a portion of the isolation liner from over a top surface of the device region, and forming contacts over the top surface of the device region.
Abstract:
A method for forming a dielectric structure includes forming an auxiliary layer over a substrate, and forming a hole within the auxiliary layer. A fill material is deposited into the hole. The auxiliary layer is removed to form the dielectric structure having a negative taper. The dielectric structure has a top critical dimension greater than a bottom critical dimension.
Abstract:
Methods for processing a semiconductor workpiece can include providing a semiconductor workpiece that includes one or more kerf regions; forming one or more trenches in the workpiece by removing material from the one or more kerf regions from a first side of the workpiece; mounting the workpiece with the first side to a carrier; thinning the workpiece from a second side of the workpiece; and forming a metallization layer over the second side of the workpiece.
Abstract:
A chuck, a system including a chuck and a method for making a semiconductor device are disclosed. In one embodiment the chuck includes a first conductive region configured to be capacitively coupled to a first RF power generator, a second conductive region configured to be capacitively coupled to a second RF power generator and an insulation region that electrically insulates the first conductive region from the second conductive region.
Abstract:
A segmented edge protection shield for plasma dicing a wafer. The segmented edge protection shield includes an outer structure and a plurality of plasma shield edge segments. The outer structure defines an interior annular edge configured to correspond to the circumferential edge of the wafer. Each one of the plurality of plasma shield edge segments is defined by an inner edge and side edges. The inner edge is interior to and concentric to the annular edge of the outer structure. The side edges extend between the inner edge and the annular edge.
Abstract:
Various methods and apparatuses are provided relating to separation of a substrate into a plurality of parts. For example, first a partial separation is performed and then the partially separated substrate is completely separated into a plurality of parts.
Abstract:
In accordance with an embodiment of the present invention, a method of forming a semiconductor device includes attaching a substrate to a carrier using an adhesive component and forming a through trench through the substrate to expose the adhesive component. At least a portion of the adhesive component is etched and a metal layer is formed over sidewalls of the through trench.
Abstract:
In one embodiment, the semiconductor die includes a selective epitaxial layer including device regions, and a masking structure disposed around sidewalls of the epitaxial layer. The masking structure is part of an exposed surface of the semiconductor die.