摘要:
In order to use an auxiliary wiring 4 formed on one of opposing substrates as a bypass line of one of circuit lines arranged in matrix on the same substrate, which has a broken portion, cross points (A and B) of the auxiliary wiring 4 and the broken circuit line are electrically connected by removing an insulating film between the auxiliary wiring and the circuit line by irradiating these cross points with a laser beam. An electrostatic protective element 10 is provided in each of cross points of the auxiliary wiring and the circuit lines and the auxiliary wiring is connected to a common terminal 13 connected to an opposing electrode formed on the other opposing substrate such that the potential of the auxiliary wiring can be removed.
摘要:
A passivation film having a predetermined width from an outer peripheral end portion toward an inner side and extending along the outer peripheral end portion is formed on a front surface of a semiconductor substrate. An outer peripheral end surface orthogonal to the front surface and a rear surface is formed by grinding the outer peripheral end portion of the semiconductor substrate. A thickness of the semiconductor substrate is reduced to a predetermined thickness by grinding the rear surface. The ground rear surface is etched by discharging a mixed acid onto the rear surface while rotating the semiconductor substrate with the rear surface facing upward, to remove a fracture layer. Thereby, chipping or cracking of the semiconductor substrate is suppressed.
摘要:
A passivation film having a predetermined width from an outer peripheral end portion toward an inner side and extending along the outer peripheral end portion is formed on a front surface of a semiconductor substrate. An outer peripheral end surface orthogonal to the front surface and a rear surface is formed by grinding the outer peripheral end portion of the semiconductor substrate. A thickness of the semiconductor substrate is reduced to a predetermined thickness by grinding the rear surface. The ground rear surface is etched by discharging a mixed acid onto the rear surface while rotating the semiconductor substrate with the rear surface facing upward, to remove a fracture layer. Thereby, chipping or cracking of the semiconductor substrate is suppressed.