An electrical connecting device including a first circuit board providing thereon with input/output terminals, each of the terminals having a tip surface coated with gallium and a second circuit board providing thereon with contact terminals, each of the terminals having a tip surface coated with indium or tin. A low-melting point alloy layer is formed by a mutual action between gallium and indium or tin, when the input/output terminals of the first circuit board are in contact with the respective terminals of the second circuit board and electrically connected to each other. The second metal layer includes a plurality of wire-like metal supports extending substantially perpendicular to the surface of the terminal and a low-melting point metal retained by the wire-like metal supports.

This invention provides a method of fabrication and structure for spacers between the anode substrate and the cathode substrate of a field emission display. The spacers have a high aspect ratio and which will be invisible to the human eye in the display image. An adhesive dielectric paste of glass frit in a binder is formed in cylindrical holes in a photoresist layer. Glass spacer spheres are placed on each column of dielectric paste. When fired the glass frit coalesces into a solid glass rod and bonds the glass spacer sphere to one end of the solid glass rod and the anode substrate to the other end of the solid glass rod. The firing also burns away the photoresist layer. The dark area in the image due to the spacers is less than 50 micrometers which will be invisible to the human eye.

A method of forming barrier ribs for a display panel, comprising the steps of: forming a glass layer for an underlying layer having a first low-melting glass powder with a softening point of a temperature A dispersed in a vehicle, and a glass layer for a barrier-rib layer having a second low-melting glass powder with a softening point of a temperature B2 higher than the temperature A and a third low-melting glass powder with a softening point of a temperature B1 higher than the temperature A but lower than the temperature B2 dispersed in a vehicle, on a substrate in this order; heating up to sinter the glass layer for the underlying layer and the glass layer for the barrier-rib layer at a temperature Z higher than the temperature A but lower than the temperature B2, thereby burning out the vehicles therefrom, forming a carve-resistive underlying layer and a barrier-rib material layer easy to carve; forming a mask for carving in a pattern corresponding in plan to barrier ribs on the barrier-rib material layer, carving part of the barrier-rib material layer by a sand blasting method, and thereby forming barrier ribs for dividing a display area.

This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.

A method of producing a substrate (12) for a plasma display panel, which comprises the steps of: contacting a rib precursor composition (32) containing a first photo-setting initiator having a first absorption edge and a first photo-setting component, closely with a base (12); filling a mold (30), obtained by photo-setting of a second photo-setting component in a presence of a second photo-setting initiator having a second absorption edge whose wavelength is shorter than that corresponding to the first absorption edge of the first photo-setting initiator, with the rib precursor composition (32); irradiating the rib precursor composition (32) with light having a wavelength longer than that corresponding to the second absorption edge to set the rib precursor composition (32), thereby forming a rib (34) on the base (12); and removing the mold (30) from the resulting base (12) on which the rib (34) is formed.