A photoconductive layer formed of a Bi12MO20 sintered body is manufactured without being fused with a setter. The method comprises the step of simultaneously exposing the fiber with two mutually coherent light beams so as to create an interference pattern along a longitudinal axis of the fiber, wherein each one of said beams is brought into a line focus, which coincides with the core of the fiber. An unbalanced current distributor can thus be actively balanced. The portion of the semiconductor wafer below the trench along a backside of the wafer maintaining structural support for the wafer during the processing steps of forming a plurality of conductive vias between the die, and forming traces to electrically connect the conductive vias to contact pads on the die. , R4 represents a C1 to C6 alkyl or a C1 to C6 haloalkyl, etc. The present method distributes fluid along the length of a substantially horizontal wellbore that is located within a reservoir such that different recovery processes, or distinct phases of a given recovery process, operating proximally or adjacently within that same reservoir, and in hydraulic communication with each other within that reservoir, are managed concurrently along the single wellbore.