Patent ID: 11955503
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An imaging element comprising:
a substrate or a well;
a pinned photodiode disposed on the substrate or the well;
a floating diffusion region disposed on the substrate or the well;
a first transfer gate transistor disposed between the pinned photodiode and the floating diffusion region, the first transfer gate transistor transferring a photodiode signal charge generated by the pinned photodiode to the floating diffusion region;
a gate-controlled storage disposed on the substrate or the well and storing a signal charge generated by the pinned photodiode as a storage signal charge;
a storage-controlling gate electrode disposed adjacent to the gate-controlled storage;
an overflow path disposed between the pinned photodiode and the gate-controlled storage and transferring the storage signal charge from the pinned photodiode to the gate-controlled storage; and
a detecting node connected to the floating diffusion region, wherein the photodiode signal charge and the storage signal charge can be read at the detecting node,
wherein the gate-controlled storage is controlled to vary a storable charge capacity by a voltage applied to the storage-controlling gate electrode.