US Patent 11398399 Components with backside adhesive layers

A component source wafer comprises printable components having adhesive disposed on a backside of the printable components. A wafer substrate comprises a sacrificial layer having recessed portions and anchors. A component is disposed entirely over each recessed portion. A tether physically connects each component to at least one of the anchors. A layer of adhesive is disposed on a side of the component adjacent to the recessed portion. Each component is suspended over the wafer substrate and the recessed portion defines a gap separating the component from the wafer substrate.