Abstract: A field emission display has a cathode, an emitter formed on the cathode, and an anode spaced apart from the cathode at a predetermined distance. The emitter includes an electron emission member having a longitudinal dimension, and an alignment member for aligning the electron emission member. The alignment member is formed with a magnetic material. The electron emission member is aligned by the alignment member such that the longitudinal dimension of the electron emission member is vertically extended from the cathode toward the anode. The electron emission member may be formed with carbon fibers or graphite particles. The magnetic material is coated on the surface of the carbon fibers or incorporated into the internal structure of the carbon fibers.

Abstract: A high voltage semiconductor device including a semiconductor substrate on which a semi-insulating polycrystalline silicon layer is formed to alleviate electric field concentration in a field region, is disclosed. A thermal oxide layer is formed on the semi-insulating polycrystalline silicon layer to serve as a protective layer. The thermal oxide layer forms a good interface with the semi-insulating polycrystalline silicon layer compared to a wet etched oxide layer or a chemical vapor deposition (CVD) oxide layer, thereby decreasing the amount of leakage current. In addition, compared to a dual semi-insulating polycrystalline silicon layer, the thermal oxide layer exhibits a high surface protection effect and a high resistance against dielectric breakdown. It also allows a great reduction in fabrication time.

Abstract: A method of producing alumina-silica ceramic with mullite whisker structure has been produced as armor materials for protecting high velocity projectile. The mixing composition of starting powders consists of alumina, quartz, kaoline, feldspar and talc, and the green compacts were sintered at the temperature range from 1200 to 1450° C. for 0.5 to 3 hours. Mullite whisker structure in the ceramic was fabricated and grown in the period of liquid phase sintering. The whisker phase of mullite is homogeneously distributed in the ceramic.

Abstract: A shock absorption stand for a road, which is capable of minimizing shock at the time of collision and making a car progress forward by having a roller and by being installed in a roadside, a central line, a pier, a guardrail of bridge or a wall surface of underground roadway. The shock absorption stand for a road includes upper and lower plates, shaft rods mounted between the upper and lower plates in regular intervals, and a plurality of roller rotatably mounted on the shaft rods. The rollers are made of a material capable of absorbing shock, such as rubber, synthetic resin or steel pipes. When the car collides, the shock absorption stand buffs shock and makes the car advance forward in the progressive direction.

Abstract: The present invention relates to a shock absorption stand for a road, which is capable of minimizing shock at the time of collision and making a car progress forward by having a roller and by being installed in a roadside, a central line, a pier, a guardrail of bridge or a wall surface of underground roadway. The shock absorption stand for a road includes upper and lower plates, shaft rods mounted between the upper and lower plates in regular intervals, and a plurality of roller rotatably mounted on the shaft rods. The rollers are made of a material capable of absorbing shock, such as rubber, synthetic resin or steel pipes.

Abstract: A method of producing alumina-silica ceramic with mullite whisker structure has been produced as armor materials for protecting high velocity projectile. The mixing composition of starting powders consists of alumina, quartz, kaoline, feldspar and talc, and the green compacts were sintered at the temperature range from 1200 to 1450° C. for 0.5 to 3 hours. Mullite whisker structure in the ceramic was fabricated and grown in the period of liquid phase sintering. The whisker phase of mullite is homogeneously distributed in the ceramic.

Abstract: A high voltage semiconductor device including a semiconductor substrate on which a semi-insulating polycrystalline silicon layer is formed to alleviate electric field concentration in a field region, is disclosed. A thermal oxide layer is formed on the semi-insulating polycrystalline silicon layer to serve as a protective layer. The thermal oxide layer forms a good interface with the semi-insulating polycrystalline silicon layer compared to a wet etched oxide layer or a chemical vapor deposition (CVD) oxide layer, thereby decreasing the amount of leakage current. In addition, compared to a dual semi-insulating polycrystalline silicon layer, the thermal oxide layer exhibits a high surface protection effect and a high resistance against dielectric breakdown. It also allows a great reduction in fabrication time.

Abstract: A PDMA polymer for a photosensitive resin composition. The PDMA polymer is obtained by polymerizing an acrylamide, N,N-dimetylacrylamide monomer, and a vinyl-type silane. The PDMA polymer having a molecular weight of 1,000,000.about.

Abstract: An electron emitter composition comprising electron emitting materials, dispersion agent, binder, and pure water is provided.An electron emitter of an FED is produced by the steps of forming a photoresist layer by coating and drying a photoresist composition on an electrode formed on a back plate (cathode plate); exposing and developing the photoresist layer into a predetermined pattern using a mask; forming an electron emitting layer by coating and drying an electron emitter composition consisting of electron emitting materials, a binder, a dispersion agent, and pure water on the developed photoresist layer; exposing the photoresist layer by etching the electron emitting layer; and washing and drying it after stripping the exposed photoresist layer.

Abstract: The present invention relates to photoresist solution for phosphor slurry for use in the color cathode ray tube. The photoresist solution of the present invention comprises Diazo or Bisazide photosensitizer; polymer. which is mixed with said Diazo or Bisazide photosensitizer, obtained by polymerization of hydroxy ethyl acrylate base. The photoresist solution of the present invention improves the adhesive strength by using of the Diazo or Bisazide photosensitizer and the polymer, thus the green, blue and red phosphor screen being uniformly formed and the color residue being disappeared. Further, since the photosensitizer not containing heavy metal is used, it does not cause any environmental problem. Also, it can be stored for a long time by using the initiator without hydrochloric acid at the time of polymerization.

Abstract: A photoresist composition containing a photo-curing polymer and a photosensitive agent, wherein the photosensitive agent comprises at least two compounds selected from the group consisting of 4,4'-diazido-2,2'-stilbenedisulfonate sodium salt, 4,4'-diazo-2,2'-dibenzalacetone disulfonate disodium salt, 2,5-bis(4-azido-2-sulfobenzylidene) cyclopentanone disodium salt and 4,4'-diazido-2,2'-dicinnamylideneacetone sulfonate salt. By performing a lithography process using the photoresist composition, the exposure time can be shortened, thereby improving the yield of products.