Abstract:
실시 예의 영구 자석은 a-b-c (a는 희토류계 원소를 포함하고, b는 전이 원소를 포함하고, c는 붕소(B)를 포함한다.)로 표기되는 베이스 자석 및 베이스 자석의 표면에 코팅되는 코팅층을 포함하고, 코팅층은 자성을 갖는 금속을 포함하는 화합물을 포함하고, 화합물은 인(P); 및 주기율표 4주기에 속하는 금속을 포함한다.
Abstract:
The present invention provides microfluidic systems, which have structurally programmable (PFD), reconfigurable, and multi-sample analysis capabilities. In one embodiment, the device includes structurally programmable fluidic paths, passive microvalves (30), fluidic components based on hydrophobic microfluidic systems (PFD), and pneumatic actuators using an air-bursting actuation concept. By controlling both the length and surface properties (e.g., hydrophilic or hydrophobic) of the channels (14), the pressure drops through the designed microfluidic systems will be controlled and thus programmable.
Abstract:
Particulates are made, especially magnetic Fe-Co alloys having high magnetic permeability, of controlled dimensions, especially those having a narrow thickness size distribution centered around a median or target thickness in the range of about 0.1-1.0 mu m, using electrodeposition typically on a smooth (polished) titanium cathode (30). The preferred continuous process uses a rotating drum cathode (30) inside a fixed anode (33) to grow flakes and to produce them automatically by inherent instability in the deposited shed into the electrolyte (12) where they are separated in a magnetic separator or other suitable device. If the flakes are soft iron or iron-cobalt alloys, the drum (30) generally is titanium or titanium alloy.
Abstract:
An apparatus and method for highly controlled electrodeposition, particularly useful for electroplating submicron structures. Enhanced control of the process provides for a more uniform deposit thickness over the entire substrate, and permits reliable plating of submicron features. The apparatus includes a pressurized electrochemical cell (10) to improve plating efficiency and reduce defects, vertical laminar flow of the electrolyte solution to remove surface gases from the vertically arranged substrate, a rotating wafer chuck (12) to eliminate edge plating effects, and a variable aperture (18) to control the current distribution and ensure deposit uniformity across the entire substrate. Also a dynamic profile anode whose shape can be varied to optimize the current distribution to the substrate. The anode is advantageously able to use metallic ion sources and may be placed close to the cathode thus minimizing contamination of the substrate.
Abstract:
The invention is directed to the use of electrochemical deposition to fabricate thin films of a material (e.g., bismuth) exhibiting a superior magnetoresistive effect. The process in accordance with a preferred embodiment produces a thin film of bismuth with reduced polycrystallinization and allows for the production of single crystalline thin films. Fabrication of a bismuth thin film in accordance with a preferred embodiment of the invention includes deposition of a bismuth layer (120) onto a substrate (200) with a metallic underlayer (118) using electrochemical deposition under relatively constant current density. Preferably, the resulting product is subsequently exposed to an annealing stage for the formation of single crystal bismuth thin film. The inclusion of these two stages in the process produces a thin film exhibiting superior MR with a simple field dependence in the process suitable for a variety of field sensing applications.
Abstract:
영구자석(또는 마그네트라 칭함)과 요크(또는 차폐금속이라 칭함) 간의 본딩 수작업을 수행하지 않고도 이들 간의 결합력을 높이고, 결합 후 연마 및 도금과 같은 후속 공정의 효율 및 제품 완성도를 높일 수 있도록 하는 한극만 사용가능한 마그네트 제조 방법을 개시한다.
Abstract:
A patterned inductor includes a conductive path and a nanostructured magnetic composition deposited on the conductive path. The magnetic composition can be screen printed, inkjetted, electrodeposited, spin coated, physical vapor deposited, or chemical vapor deposited onto the conductive path.
Abstract:
A tag or marker is disclosed which comprises a substrate; an 'active' magnetic material which is a soft magnetic material having a high magnetic permeability and a low coercive force; and a deactivating material which is a hard or semi-hard magnetic material having a moderate or high coercive force and a moderate magnetic permeability, whereby the deactivating material, when subjected to a sufficiently high magnetising force, is able to clamp the magnetic properties of the 'active' material so as to deactivate the 'active' material. The tag or marker is characterised in that at least one of said 'active' material and said deactivating material is formed by an electrodeposition process. In another aspect, the deactivating material is formed from a steel containing 0.15 % carbon, 16-18 % chromium, and 6-8 % nickel, the balance being iron.
Abstract:
본 발명은 PAN-Fe 2 O 3 자성복합체 및 그 제조방법에 관한 것으로서, 특히 자기특성이 우수한 PAN-Fe 2 O 3 자성복합체을 제조할 수 있는 제조방법에 관한 것으로서, a) DMF(Dimethylformamide)에 PAN(polyacrylonitrile) 및 Fe 2 O 3 나노입자를 혼합한 후 교반하여 방사용액을 제조하는 단계와; b) 상기 방사용액을 전기방사시켜 자성복합 나노웹을 얻는 단계와; c) 상기 자성복합 나노웹을 가열하여 안정화시키는 안정화 단계와; d) 상기 안정화된 자성복합 나노웹을 탄화시키는 탄화 단계를 포함하는 것을 특징으로 한다.