摘要:
[Object] In the control of electron beam focusing of a pierce-type electron gun, any influences from the space charge effect and space charge neutralizing action within the electron gun are eliminated to attain complete control of an electron beam.[Solving Means] Feedback control of the pressure within the electron gun is performed by directly measuring temperature at an internal of the pierce-type electron gun. It is desirable that locations where the direct measurement of the temperature at the internal of the electron gun is performed are an anode (39) and a flow register (43). Further, the direct measurement can be performed at any one of a ring, an aperture and an exhaust pipe provided at an outlet or an inlet of any one of a cathode chamber (31), an intermediate chamber, and a scanning chamber (33). Accordingly, all of stabilization of beam producing area (optimized design of electron gun itself), stabilization of beam transporting portion and stabilization of beam using portion have become appropriate.
摘要:
A substrate stage that is arranged in a vacuum chamber and that has a substrate mounting surface on which a substrate is mounted, including a first magnetic field applying unit that applies a magnetic field to the substrate, in which the internal magnetization direction of the first magnetic field applying unit and the thickness direction of the substrate match.
摘要:
A light emitting diode (LED) module is disclosed. The LED module includes a base, a LED component, a pressing piece, and a plurality of screws. The base has a top surface and a positioning hole on the top surface. The LED component has a bottom surface and includes a positioning protrusion on the bottom surface. Wherein after the LED component is disposed on the base, the positioning protrusion is coupled with the positioning hole to position the LED component at the base. A pin of the LED component is located between the pressing piece and the base. The screws are used to screw the pressing member on the base.
摘要:
A method for treating the surface of the heat dissipation module is provided. The method includes the following steps. First, a heat dissipation module is provided. Next, a nano-material layer is formed on the surface of the heat dissipation module. Thus, the surface of the heat dissipation module is isolated from air and effectively prevented from being oxidized or polluted.
摘要:
Method for eliminating loading effect using a via plug. According to an embodiment, the present invention provides a method of processing an integrated circuit wherein a loading effect is reduced. The method includes a step for providing a substrate, which is characterized by a first thickness. The method also includes a stop for forming an inter metal dielectric layer overlaying the substrate. The inter metal dielectric layer is characterized by a second thickness. The method additionally includes a step for forming a first photoresist layer overlaying the inter metal dielectric layer. The first photoresist layer is associated with a first pattern. Additionally, the method includes a step for forming a first opening positioned at least partially inside the inter metal dielectric layer. The first via opening is characterized by a first depth. The method additionally includes a step for removing the first photoresist layer. The method further includes a step for forming a via plug.
摘要:
A method for forming high capacitance crystalline dielectric layers with (111) texture is disclosed. In an exemplary embodiment, deposition of a plurality of nuclei is performed at a temperature in the range of about 430 to 460 degrees Celsius, followed by growth of a continuous BSTO dielectric layer at a temperature greater than 600 degrees Celsius. In an exemplary embodiment, a process is disclosed for growing a barium strontium titanium oxide film with high capacitance and thickness of about 30 nm or less.
摘要:
Structures and methods for selectively applying a well bias to only those portions of a PLD where such a bias is necessary or desirable, e.g., applying a positive well bias to transistors on critical paths within a user's design. A substrate for an integrated circuit includes a plurality of wells, each of which can be independently and programmably biased with the same or a different well bias voltage. In one embodiment, FPGA implementation software automatically determines the critical paths and generates a configuration bitstream that enables positive well biasing only for the transistors participating in the critical paths, or only for programmable logic elements (e.g., CLBs or lookup tables) containing those transistors. In another embodiment, negative well biasing is selectively applied to reduce leakage current.
摘要:
A centrifugal clutch comprises a driving wheel, an operative disc connected to the driving wheel to move therewith, a transmission disc mounted to an outer periphery of the operative disc, a follower shaft, a friction mechanism, and a coupling device for releasable coupling with a gear train of a gearbox. The follower shaft extends through the driving wheel, the operative disc, and the transmission disc. The friction mechanism is fixed to the transmission disc and in frictional engagement with a friction portion of the driving wheel. When the driving wheel turns at an idling speed, the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
摘要:
In semiconductor dynamic random access memory circuits using stacked capacitor storage elements formed using high permittivity dielectric material, it is typical to form the stacked capacitors using noble metal electrodes. Typically, the etching process for the noble metal electrodes requires the use of a hard mask patterning material such as silicon oxide. Removal of this hard mask frequently results in damage to the dielectric surface surrounding the patterned noble metal electrode. A method of removing the hard mask material without damaging the surrounding surface includes the steps of: depositing a soft mask photoresist material over the composite surface, including the hard masked covered noble metal electrode and the dielectric surface, in a manner such that the soft mask material is thinner over the region of the noble metal electrode; removing the portion of the soft mask material over the noble metal electrode leaving the soft mask material over the dielectric surface; etching the hard mask material with the soft mask material protecting the dielectric surface; and removing the remaining portion of the soft mask material.
摘要:
A method of forming an integrated barrier/contact for stacked capacitors is provided which results in reduced cost of ownership and in a barrier which is nominally several times thicker than convention structures. The resulting structure results in decreased contact plug resistance as compared with conventional devices.