摘要:
First, a trench formed in parts of a semiconductor wafer, a sealing film and others corresponding to a dicing street and both sides thereof. In this state, the semiconductor wafer is separated into silicon substrates by the formation of the trench. Then, a resin protective film is formed on the bottom surface of each silicon substrate including the inner part of the trench. In this case, the semiconductor wafer is separated into the silicon substrates. However, a support plate is affixed to the upper surfaces of the columnar electrode and the sealing film via an adhesive layer. Therefore, when the resin protective film is formed, it is possible to prevent the entirety including the separated silicon substrates from being easily warped.
摘要:
A low dielectric constant film/wiring line stack structure made up of a stack of low dielectric constant films and wiring lines is provided in a region on the upper surface of the semiconductor substrate except for the peripheral part of this surface. The peripheral side surface of the low dielectric constant film/wiring line stack structure is covered with a sealing film. This provides a structure in which the low dielectric constant films do not easily come off. In this case, a lower protective film is provided on the lower surface of a silicon substrate to protect this lower surface against cracks.
摘要:
First, a trench is formed in parts of a semiconductor wafer, a sealing film and other elements corresponding to a dicing street and both sides thereof. In this state, the semiconductor wafer is separated into silicon substrates by the formation of the trench. Then, a resin protective film is formed on the bottom surface of each silicon substrate including the inner part of the trench. In this case, the semiconductor wafer is separated into the silicon substrates. However, a support plate is affixed to the upper surfaces of the columnar electrode and the sealing film via an adhesive layer. Therefore, when the resin protective film is formed, it is possible to prevent the entire workpiece including the separated silicon substrates from being easily warped.
摘要:
A low dielectric constant film/wiring line stack structure made up of a stack of low dielectric constant films and wiring lines is provided in a region on the upper surface of the semiconductor substrate except for the peripheral part of this surface. The peripheral side surface of the low dielectric constant film/wiring line stack structure is covered with a sealing film. This provides a structure in which the low dielectric constant films do not easily come off. In this case, a lower protective film is provided on the lower surface of a silicon substrate to protect this lower surface against cracks.
摘要:
In this manufacturing method of a semiconductor device, after a sealing film is applied over an entire surface of a semiconductor wafer and hardened, a second groove for forming a side-section protective film is formed in the sealing film and on the top surface side of the semiconductor wafer. In other words, the sealing film is formed in a state where a groove that causes strength reduction has not been formed on the top surface side of the semiconductor wafer. Since the second groove is formed on the top surface side of the semiconductor wafer after the sealing film is formed, the semiconductor wafer is less likely to warp when the sealing film, made of liquid resin, is hardened.
摘要:
A thin-film transistor comprises a gate electrode formed on an insulating substrate, a gate insulating film covering the gate electrode and the insulating substrate, an i-type semiconductor layer formed on the gate insulating film, and a source electrode and a drain electrode electrically connected to two ends of the i-type semiconductor layer, respectively. The gate electrode is made of aluminum alloy containing high-melting-point metal such as Ti and Ta and oxygen or nitrogen or both.
摘要:
A method of forming a transparent conductive thin film by sputtering includes the step of placing a target consisting of a conductive oxide material and a substrate on which the thin film is to be formed in a pressure vessel, the step of supplying argon gas and oxygen gas after the pressure vessel is substantially evacuated, the step of supplying a sputtering current to the target to maintain a discharge state, the step of detecting the partial pressure of oxygen in the gas mixture in the pressure chamber, and the step of controlling the flow rate of oxygen gas. The flow rate of the oxygen gas is controlled by a control unit such that the value of the partial pressure of oxygen which is detected in the partial pressure detection step is always kept constant.
摘要:
In a printer, a printing clutch and a hammer impact changeover mechanism are controlled through a control member by one electromagnet, in such a manner that in response to a printing signal the clutch is engaged through the control member by the electromagnet to start one printing cycle and, in the second half of the printing cycle, the electromagnet is operated to enable a hammer impact change-over mechanism with the aid of the control member. The energizing forces of two weak spring members are applied to a cam follower member operatively coupled to the printing hammer so that when a printing type element having a large printing surface is selected, the energizing forces of the two spring members are utilized to allow the printing hammer to strike the type element strongly, and when a type element having a small printing surface is selected, the energizing force of only one of the two spring member is utilized to allow the printing hammer to strike the type element less strongly.
摘要:
A semiconductor device comprises a semiconductor substrate having a connection pad, an external connection electrode provided on the semiconductor substrate to be connected to the connection pad, and a sealing film provided to cover the external connection electrode, wherein an opening is provided in the sealing film to expose a center of the upper surface of the external connection electrode, and the sealing film is provided to cover an outer peripheral part of the upper surface of the external connection electrode.
摘要:
A semiconductor device includes a plurality of wiring lines which are provided on an upper side of a semiconductor substrate and which have connection pad portions, Columnar electrodes are provided on the connection pad portions of the wiring lines. A first sealing film is provided around the columnar electrodes on the upper side of the semiconductor substrate and on the wiring lines. A second sealing film is provided on the first sealing film. The first sealing film is made of a resin in which fillers are not mixed, and the second sealing film is made of a material in which fillers are mixed in a resin.