An inkjet print head includes a semiconductor substrate having a plurality of continuous slotted recesses in a first surface. The plurality of continuous slotted recesses is arranged in parallel, spaced apart relation. Each continuous slotted recess extends continuously across the first surface. The semiconductor substrate also has a plurality of discontinuous slotted recesses in a second surface that is opposite the first surface. The plurality of discontinuous slotted recesses is aligned and coupled in communication with the continuous slotted recesses to have a first portion defining a plurality of alternating through-wafer channels and a second portion defining residual slotted recess portions. A dielectric material is disposed within the residual slotted recess portions. A plurality of inkjet heaters is carried by said semiconductor substrate.