Patent ID: 11922244
Assignee: NXP B.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A method of producing a storage device, the method comprising providing the storage device with:
a capacitor configured to be charged;
a charge circuit configured to charge said capacitor;
a pass device coupled between the charge circuit and the capacitor, wherein the pass device has a drain coupled to the charge circuit, a gate, and source coupled to the capacitor, and wherein the source has a p-n junction associated therewith that generates a photocurrent in the presence of light;
a control circuit configured to control a gate voltage of said pass device;
a photosensitive diode coupled to the gate of the pass device, such that an input voltage provided by the control circuit to the gate of the pass device is reduced if the storage device is exposed to light to reduce the photocurrent of the p-n junction of the source.