Method for forming wires with narrow spacing

• Main Author: HSU, HAN TUNG
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2015
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A method for forming wires with a narrow spacing is provided. The method includes the steps of: sequentially forming a first metal layer and a protective layer on a substrate; using a first photomask to pattern the first metal layer and the protective layer, so as to form a first metal line and a patterned protective layer thereon; forming a second metal layer on the substrate and the patterned protective layer; using a second photomask to pattern the second metal layer, so as to form a second metal line adjacent to the first metal line; and removing the patterned protective layer on the first metal line. According to the method, the wires can be located at the same layer with a narrow spacing, thereby avoiding a problem that the wires are easily broken.