Semiconductor device structure and fabricating method thereof

A fabricating method of a semiconductor device structure, comprising:

• providing a substrate, wherein the substrate comprises a resistor region;
• forming a first dielectric layer on the substrate;
• forming a metal layer on the first dielectric layer;
• forming a second dielectric layer which is patterned on the metal layer, wherein the second dielectric layer is located within the resistor region;
• forming a semiconductor layer on the substrate, wherein the semiconductor layer covers the metal layer and the second dielectric layer;
• forming a patterned mask layer on the semiconductor layer, wherein the patterned mask layer within the resistor region is located above the second dielectric layer;
• removing a portion of the semiconductor layer, a portion of the second dielectric layer, a portion of the metal layer, and a portion of the first dielectric layer with the patterned mask layer as a mask to define a resistor within the resistor region;
• and removing the patterned mask layer.