Integrated thin-film solar cell and method of manufacturing the same

A method of manufacturing an integrated thin-film solar cell, the method comprising:

• obliquely depositing a first conductive material on a substrate, the substrate having a prominence and a depression spaced a predetermined distance apart from each other;
• forming a solar cell layer on an entire surface of a resultant substrate;
• obliquely depositing a second conductive material on the solar cell layer in a different direction than a direction for obliquely depositing the first conductive material on the resultant substrate so that one or more portions of a top surface of the solar cell layer remain exposed;
• etching the exposed portion of the solar cell layer using the second conductive material as a mask;
• and
• obliquely depositing a third conductive material on the resultant substrate so that the first conductive material and the second conductive material adjacent to the first conductive material are electrically connected by the third conductive material.