摘要:
A technique for producing a chip mount type package or a TAB package with high reliability, without use of a flux which would cause environmental pollution or would hinder an enhancement of reliability, more particularly pertains to a method of irradiating bonding surfaces, for which a solder is used, and solder bump electrodes of a package with an atomic or ion energy beam, and bonding the bonding surfaces to each other under normal pressure (about 1 atm) in a continuous apparatus.
摘要:
In an overall stacked piezoelectric element, the material for the electrode was selected from aluminum, nickel and copper each alone or alloys based on aluminum, nickel or copper, and further the parts of the electrode which contact with molding resin on the side face of the stacked body and the parts which have to be insulated from the lead-out terminals were subjected to an oxidation or nitriding treatment. As the result, an improved element was obtained which is of a high reliability, suited to low voltage operation and suffers no short-circuit of the electrode even when water permeates to the side face of the stacked body during operation in humid atmosphere.
摘要:
An invention relating to a technique for producing a chip mount type package or a TAB package with high reliability, without use of a flux which would cause environmental pollution or would hinder an enhancement of reliability, and more particularly pertaining to a method of irradiating bonding surfaces, for which a solder is used, and solder bump electrodes of a package with an atomic or ion energy beam and bonding the bonding surfaces to each other under normal pressure (about 1 atm) in a continuous apparatus.
摘要:
A vane member comprises a first member and a second member, the first member and the second member are joined by that an insert member whose melting temperature is lower than melting temperatures of the first and second members contacts the first and second members, the insert member is heated to a welding temperature which is lower than the melting temperatures of the first and second members and is higher than the melting temperature of the insert member so that a mutual diffusion between at least an original base component of the insert member and at least an original base component of the first member different from the original base component of the insert member and a mutual diffusion between at least the original base component of the insert member and at least an original base component of the second member different from the original base component of the insert member are caused by the heating, and the mutual diffusions by the heating are continued at least until the original base component of the insert member is replaced by at least one of the original base components of the first member and the second member and the at least one of the original base components of the first member and the second member becomes a substitute base component of the insert member.
摘要:
A slider unit having a reading or reproducing head, with the head being adapted to float over a surface of an information recording disc. The slider unit includes a slider body having a flying height sensor with float surfaces on an underside thereof to generate a lifting force. A piezoelectrically or electrostatically controlled valve layer may be positioned over a vent communicating between an upper surface of the slider, with the vent opening to a recess for generating a negative lift component at an underside of the slider unit. The slider body is made from a ceramic base portion and includes a semiconductive insert portion of, for example, silicon or a photosensitive glass with an adjustment device being formed by utilization of microfabrication techniques such as deposition and etching.
摘要:
This invention discloses a method of soldering together at least two members selected form metals and ceramics, which comprises successively jointing a high-melting jointing material, a medium-melting jointing material, and a low-melting jointing material, and a sealing structure prepared by this method.The method according to present invention enables the preparation of a sealing structure having a soldered area which is excellent in tightness.
摘要:
The present invention relates to a method for bonding a non-oxide ceramic to a metal through an intermediate material comprising at least one member selected from metals of the Groups VIa and VIII of the Periodic Table. This method is suitably used for bonding of a structural part of a machine, an electronic part and the like.