COIL COMPONENT AND METHOD FOR MANUFACTURING SAME

[Problem] To suppress an increase in DC resistance caused by roughening in a coil component including a spiral pattern. [Solution] The present invention is provided with: a first step for forming a conductor layer (10) including a spiral pattern (SP1) formed by helically winding a plurality of turns; a second step for selectively roughening the upper surface (93) of the spiral pattern (SP1) and the upper region (91) of the side surface (90) along the circumferential direction; and a third step of forming an insulating resin layer (71) embedded in the conductor layer (10), and repeating the first to third steps. Thus, since the upper surface (93) of the spiral pattern (SP1) and the upper region (91) of the side surface (90) are selectively coarsened, it is possible to suppress an increase in DC resistance caused by excessive coarsening of the lower region (92) of the side surface (90). [技术问题]在包含螺旋图案的线圈部件中，抑制由粗化引起的直流电阻的增加。[解决手段]具备：第一工序，形成包含螺旋状地卷绕多匝而成的螺旋图案(SP1)的导体层(10)；第二工序，选择性地使螺旋图案(SP1)的上表面(93)和沿着周向的侧面(90)的上部区