Patent ID: 11942176
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A semiconductor memory device comprising
a plastic package including:
an inductor;
a first memory chip including a booster circuit that boosts a voltage from a first voltage to a second voltage using the inductor; and
a second memory chip having a terminal supplied with the second voltage from the first memory chip, wherein
booster circuit includes:
a switching element having one end connected to the inductor and another end having a ground potential;
a rectifier circuit that is connected to the inductor and rectifies an output voltage of the switching element; and
a control circuit that performs switching control of turning on or off the switching element according to an output voltage of the rectifier circuit, and
the plastic package includes a capacitor having one end connected to an output node of the rectifier circuit and another end having a potential of the ground potential,
the first memory chip includes a first terminal connected to one end of the inductor and a second terminal connected to the output node and the one end of the capacitor, and
each of the first memory chip and the second memory chip includes a third terminal connected to the one end of the capacitor, and a fourth terminal supplied with a third voltage lower than the second voltage, and
the plastic package further includes a first pin supplied with the first voltage and connected to another end of the inductor, and a second pin supplied with the third voltage and connected to the second terminal.