| 摘要 |
<p>A bipolar or MOS semiconductor device is produced by self-alignment by the steps of (a) forming an insulating film on a semiconductor substrate, (b) forming a first conductive film, (c) forming a first masking film having a window, (d) anisotropically etching the conductive film to form an opening, (e) transversely etching the conductive film to form a protruding portion of the masking film, (f) forming a second masking film on the insulating film through the window, (g) etching an uncovered portion of the insulating film under the protruding portion, and (h) forming a second conductive film connecting the first conductive film and the exposed portion of the semiconductor substrate.</p> |
