초록 ▼

A positive charge pumping circuit which is capable of reducing a sheet resistance and a threshold potential drop. The pumping circuit includes a pumping node, a power supply node, a first diode and at least one pumping stage, The pumping node provides a pumping potential. The supply node provides a

A positive charge pumping circuit which is capable of reducing a sheet resistance and a threshold potential drop. The pumping circuit includes a pumping node, a power supply node, a first diode and at least one pumping stage, The pumping node provides a pumping potential. The supply node provides a power supply potential. An anode of the diode is coupled to the power supply node. The pumping stages are coupled in series between the pumping node and a cathode of the first diode. Each of the pumping stages includes a driving node and a control node, a pumping driving circuit, a transfer control circuit, a charge pumping circuit, and a potential control circuit.

대표청구항 ▼

[ What is claimed is:] [1.] A pumping circuit in a semiconductor device, comprising:a pumping node for providing a pumping potential;a power supply node for providing a power supply potential;a first diode whose anode is coupled to said power supply node; andat least one pumping stage coupled in ser

[ What is claimed is:] [1.] A pumping circuit in a semiconductor device, comprising:a pumping node for providing a pumping potential;a power supply node for providing a power supply potential;a first diode whose anode is coupled to said power supply node; andat least one pumping stage coupled in series between said pumping node and a cathode of said first diode,wherein each of said pumping stage comprises:a driving node and a control node;a pumping driving means having at least one second diode and at least one first capacitor, wherein an anode-cathode path of said second diode is coupled between the cathode of said first diode and said pumping node, and said first capacitor is coupled between the anode of said second diode and said driving node;a transfer control means coupled between said driving node and said control node for providing a forward biasing from said driving to said control node;a charge pumping means coupled to said driving node for providing a pumping potential to said driving node by a charge pumping operation; anda potential control means coupled to said control node for alternatively providing a first potential and a second potential to the control node.