摘要:
A process and apparatus for preparing an MCM for hat removal where the hat includes a piston thermally coupled to a corresponding chip. The apparatus includes a heater positioned to reflow a joint between the piston and a base of the hat; and a retractor for biasing the piston away from the corresponding chip. Implementation of the apparatus and process prevent a piston, as it moves across the top of a corresponding chip during mechanical shear to remove the hat, to impact chip(s) and surrounding components. In addition, since piston(s) are retracted, the likelihood of piston impact with or cracking of a chip is reduced. In addition, cutting into a corresponding chip having a tilted back surface is prevented. The need to replace chips and other electronic components when making other repairs may, therefore, be greatly reduced.
摘要:
An optical-electronic package for an electronic device provides electrical connections to the electronic device and optical fiber connections to the electronic device. The package includes a high thermal conductivity base which has a pedestal to support and provide heat transfer connection to the electronic device. A seal band is formed on the base and a casing is bonded to the seal band. The casing has side feedthroughs for the electrical connections from the electronic device, and the casing has top feedthroughs or grooves for the optical fiber connections from the electronic device. A lid is hermetically sealed to the top of the casing. The lid has retractable means for forming a bend in the optical fibers to provide strain relief when the lid is placed on the casing. The retractable means for forming a bend in the optical fibers is retractable once the lid is sealed on the casing.
摘要:
A process for producing ultra-fine yttrium-iron-garnet particles. In the first step of this process, a ceramic precursor material containing yettrium and ferric cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
摘要:
A process for producing ultra-fine barium titanate particles. In the first step of this process, a ceramic precursor material containing a metal cation, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided; the nitrogen-containing material contains at least three nitrogen atoms, at least one oxygen atom, and at least one carbon atom. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
摘要:
A fixture for shaping a laminate substrate includes a trap ring, a base plate and a center button. The base plate includes a recess adapted to receive the laminate substrate. The center button is disposed in an opening in the base plate. The center button may be adjusted to shape the laminate substrate.
摘要:
An apparatus for determining a magnitude of a compressive load applied to a piston including a compliant film disposed between first and second elements is provided. The apparatus includes a first part movable with the first element in a movement direction along which the magnitude of the compressive load is to be determined, a second part movable with the second element in the movement direction and a sensor to measure a distance between the first and second parts in the movement direction, the measured distance being related to a deformation of the compliant film as the compressive load is applied.
摘要:
An improved thermal interface material for semiconductor devices is provided. More particularly, low compressive force, non-silicone, high thermal conductivity formulations for thermal interface material is provided. The thermal interface material comprises a composition of non-silicone organics exhibiting thermal conductivity of approximately 5.5 W/mK or greater and a compressed bond-line thickness of approximately 100 microns or less using a compressive force of approximately 100 psi or less.
摘要:
A process for producing a sintered body from untra-fine superconductive particles. In the first step of this process, a ceramic precursor material containing yttrium, barium and copper cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided; the nitrogen-containing material contains at least three nitrogen atoms, at least one oxygen atom, and at least one carbon atom. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere. A green body is formed from the calcined particles which is subjected to temperature to form a sintered body.
摘要:
A process for producing ultra-fine barium hexaferrite particles. In the first step of this process, a ceramic precursor material containing barium and trivalent ferric cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
摘要:
Precast curable thermal interface adhesives facilitating the easy and repeatable separation and remaining of electronic components at thermal interfaces thereof, and a method for implementing the foregoing repeatable separation and remating at the thermal interfaces of components through the use of such adhesives.