Patent ID: 11897761
Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 9:
10. A method of forming electronic devices, comprising: providing a substrate having a substrate top side, a substrate bottom side opposite to the substrate top side, and electronic devices formed as part of the substrate, wherein each electronic device comprises: an electronic device top side at the substrate top side; an electronic device bottom side opposite to the electronic device top side and at the substrate bottom side; and a cavity extending partially inward from the electronic device bottom side towards the electronic device top side; attaching a barrier structure having a plurality of barriers adjacent to the substrate bottom side, wherein: each of the plurality of barriers extends across a respective cavity; and each of the plurality of barriers comprises first barrier through-holes overlying the respective cavity; attaching the substrate to a carrier; and singulating the substrate to separate the electronic devices into individual electronic devices, wherein: attaching the barrier structure comprises: attaching a dielectric film to the substrate bottom side; and after attaching the dielectric film, forming the first barrier through-holes in the dielectric film.