摘要:
A matrix-addressed smectic liquid display device (MASD) comprises a smetic liquid crystal material confined between a pair of closely spaced apart substrates (16, 18) of transparent insulating material. A first array of spaced highly conductive row lines (30) is disposed on a transparent highly resistive thin film (32) deposited on the interior surface (34) of one of the substrates (16). A second array of spaced column lines (26) is disposed on the interior surface (28) of the other substrate (18). Circuit means (40, 48, 50, 52) are provided to drive both ends of selected row electrodes with a voltage source to cause heating of the area of the highly resistive transparent material between the selected row line and an adjacent row line which has a reference potential connected to both ends. The heating causes the adjacent liquid crystal material to change from the smectic to at least the nematic state. A source of image signals (42) is coupled (44, 46, 54) to the column lines (26) as the liquid crystal material is cooling to selectively produce a clear or scattered state in the liquid crystal material. The row lines (30) are sequentially energized in conjunction with the appropriate image data to produce a desired display image.
摘要:
A hermetically encapsulated magnetic record member is produced by applying a liquid mixture containing one or more organometallic compounds, an organic solvent and magnetic particles to a thermally stable substrate, e.g. of silicon. The applied mixture is then heated to melt the glass in the organometallic compound so that upon cooling of the glass, the magnetic particles are encapsulated therein.
摘要:
A hermetically encapsulated magnetic record member is produced by applying a liquid mixture containing one or more organometallic compounds, an organic solvent and magnetic particles to a thermally stable substrate, e.g. of silicon. The applied mixture is then heated to melt the glass in the organometallic compound so that upon cooling of the glass, the magnetic particles are encapsulated therein.
摘要:
Aluminium-based alloy films and metallization layers that are patterned by reactive ion etching (RIE) are passivated by etching surface portions of the films or layers with a phosphoric-chromic mixture to remove contaminants and then oxidizing the exposed surface portions in an oxygen atmosphere.
摘要:
The drawing shows a cooling system for use in a "flip chip packaging" environment where a large scale integrated circuit chip is mounted in an inverted position on a ceramic substrate and presents a flat upwardly facing cooling surface. The system comprises a silicon plate (18) having a plain lower surface which is attached (e.g. by solder) to the upper surface of the inverted chip to be cooled. The upper surface of the plate (18) is formed with a multiplicity of parallel grooves (20) which register with slots (22A) formed through a second plate (22) sealed to the plate (18). A third plate overlying and sealed to the plate (22) has an inlet port (24C) which communicates with the central slot (22A) and outlet passages (24A) which communicate with the end slots (22a). The port (24A) registers with the outlet end of a flexible bellows pipe (28) through which coolant fluid is supplied to the grooves (20) and the outlet ports (248) of the passages (24A) register with the inlet end of an annular duct formed between the bellows pipe (28) and a co-axial encircling second flexible bellows pipe (32) and through which heated coolant fluid is removed from the grooves (20).
摘要:
The drawing shows a cooling system for use in a "flip chip packaging" environment where a large scale integrated circuit chip is mounted in an inverted position on a ceramic substrate and presents a flat upwardly facing cooling surface. The system comprises a silicon plate (18) having a plain lower surface which is attached (e.g. by solder) to the upper surface of the inverted chip to be cooled. The upper surface of the plate (18) is formed with a multiplicity of parallel grooves (20) which register with slots (22A) formed through a second plate (22) sealed to the plate (18). A third plate overlying and sealed to the plate (22) has an inlet port (24C) which communicates with the central slot (22A) and outlet passages (24A) which communicate with the end slots (22a). The port (24A) registers with the outlet end of a flexible bellows pipe (28) through which coolant fluid is supplied to the grooves (20) and the outlet ports (248) of the passages (24A) register with the inlet end of an annular duct formed between the bellows pipe (28) and a co-axial encircling second flexible bellows pipe (32) and through which heated coolant fluid is removed from the grooves (20).