Patent ID: 7456051

Claim:
A photoelectric device grinding process, comprising the steps of: providing a wafer having a plurality of chip units thereon, wherein the surface of each chip unit has at least a photoelectric device; providing an amount of glue with a plurality of spacers therein; attaching a dielectric substrate over the photoelectric device on the surface of the wafer through the glue, wherein the glue and the spacers are disposed between the dielectric substrate and the wafer and both of the glue and the spacers are directly contacted with the dielectric substrate and the wafer, such that the spacers maintain a constant gap between the dielectric substrate and the wafer and the spacers are surrounded by the glue except for the portion of the spacers directly contacting the dielectric substrate and wafer; and after attaching the dielectric substrate over the photoelectric device on the surface of the wafer, grinding the surface of the dielectric substrate away from the wafer or the surface of the wafer away from the dielectric substrate.