Patent ID: 9595955
Date: 2017-03-14
CPC Classifications: G11C,H01L,H03B,H03K,H03L

Claim:
1. A semiconductor device comprising: a first node; a second node; a first-stage power storage element to a n-th-stage power storage element; and a first-stage switch to a n-th-stage switch, wherein capacities of the first-stage power storage element to the n-th-stage power storage element are different from one another, wherein the first-stage power storage element to the n-th-stage power storage element are electrically connected in parallel between the first node and the second node, wherein the first-stage power storage element to the n-th-stage power storage element are electrically connected to the first node via the first-stage switch to the n-th-stage switch, respectively, wherein n is an integer greater than or equal to 2, and wherein on/off states of the first-stage switch to the n-th-stage switch are controlled by a first signal to a n-th signal, respectively.