摘要:
The present invention relates generally to apparatus and methods for making simultaneous electrical connections, and more particularly to making these electrical connections simultaneously using a new bond tip configuration. Various methods and processes are being disclosed to simultaneously make electrical connections between electrical conductor lines or pads. The electrical connection is made by placing an electrically conductive wire across a pair of electrical lines or pads that have to be electrically connected and then by using a special tip, both ends of the electrically conductive wire are simultaneously secured to the two electrically conductive lines or pads.
摘要:
The present invention relates generally to apparatus and methods for making simultaneous electrical connections, and more particularly to making these electrical connections simultaneously using a new bond tip configuration. Various methods and processes are being disclosed to simultaneously make electrical connections between electrical conductor lines or pads. The electrical connection is made by placing an electrically conductive wire across a pair of electrical lines or pads that have to be electrically connected and then by using a special tip, both ends of the electrically conductive wire are simultaneously secured to the two electrically conductive lines or pads.
摘要:
The present invention relates generally to a new method of repairing electrical lines, and more particularly to repairing electrical lines having an opening at the module level with devices in place. Various methods and processes are used to repair this open or defective portion in an electrical conductor line. It could be repaired by securing a jumper wire or nugget across the open or the repair could be made by a deposition process, which includes but is not limited to filling the opening with a solder type material or inserting a solder coated electrical wire and heating the solder and allowing the solder to melt and repair the open. One of the attributes of this invention is the ability to repair on a substrate or module on which active components such as chips, and passive components such as pins, capacitors, etc. have been attached. The invention also allows repair of fine line patterns which are normally not repairable by conventional techniques.
摘要:
The present invention relates generally to a new method of repairing electrical lines, and more praticularly to repairing electrical lines having an open at the module level with devices in place. Various methods and processes are used to repair this open or defective portion in an electrical conductor line. It could be repaired by securing a jumper wire or nugget across the open or the repair could be made by a deposition process, which includes but is not limited to filling the open with a solder type material or inserting a solder coated electrical wire and heating the solder and allowing the solder to melt and repair the open. One of the attributes of this invention is the ability to repair on a substrate or module on which active components such as chips, and passive components such as pins, capacitors, etc. have been attached. The invention also allows repair of fine line patterns which are normally not repairable by conventional techniques.
摘要:
An electrical connector arrangement for connecting electronic devices to one another. The connector arrangement uses tensile members and compression members, at least the tensile members of which act to provide both an electrical connection between electronic devices and force over a range of distances to hold the devices together. The tensile members provides tensile force acting to hold the electronic devices together while the compression members provide an opposing compressive force over a range of distances which balances the tensile force to thereby form a cellforce connector used to connect an array of electrical contact points on one electronic device to a corresponding array of electrical contact points on another electronic device.
摘要:
A method for removing a thinned silicon structure from a substrate, the method includes selecting the silicon structure with soldered connections for removal; applying a silicon structure removal device to the silicon structure and the substrate, wherein the silicon structure removal device comprises a pre-determined temperature setpoint for actuation within a range from about eighty percent of a melting point of the soldered connections to about the melting point; heating the silicon structure removal device and the soldered connections of the silicon structure to within the range to actuate the silicon structure removal device; and removing the thinned silicon structure. Also disclosed is a structure including a plurality of layers, at least one layer including a thinned silicon structure and solder coupling the layer to another layer of the plurality; wherein the solder for each layer has a predetermined melting point.
摘要:
An interconnection structure and methods for making and detaching the same are presented for column and ball grid array (CGA and BGA) structures by using a transient solder paste on the electronic module side of the interconnection that includes fine metal powder additives to increase the melting point of the solder bond. The metal powder additives change the composition of the solder bond such that the transient melting solder composition does not completely melt at temperatures below +230° C. and detach from the electronic module during subsequent ref lows. A Pb—Sn eutectic with a lower melting point is used on the opposite end of the interconnection structure. In the first method a transient melting solder paste is applied to the I/O pad of an electronic module by means of a screening mask. Interconnect structures are then bonded to the I/O pad. In a second method, solder preforms in a composition of the transient melting solder paste are wetted onto electronic module I/O pads and interconnect columns or balls are then bonded. Detachment of an electronic module from a circuit card can then be performed by heating the circuit card assembly to a temperature above the eutectic solder melting point, but below the transient solder joint melting point.
摘要:
A temporary attach article of a first component to a second component which includes a first component having a first volume of a fusible material; a second component having a second volume of fusible material; and the first and second components being joined together through the first and second volumes of fusible material, wherein the first volume of fusible material has a melting point higher than a melting point of the second volume of fusible material so that the first and second components may be joined together without melting of the first volume of fusible material and wherein the second volume of fusible material is 5 to 20% of the first volume of fusible material. Also disclosed is a method for temporary attach of devices to an electronic substrate.
摘要:
The present invention relates generally to a new process for hermetically sealing of a high thermally conductive substrate, such as, an aluminum nitride substrate, using a low thermally conductive interposer and structure thereof. More particularly, the invention encompasses a hermetic cap which is secured to an aluminum nitride substrate using the novel thermal interposer. The novel thermal interposer basically comprises of layers of relatively high thermal conductive metallic materials sandwiching a core layer of low thermal conductive metallic material.
摘要:
A solder ball removal tool uses ultrasonic vibrations to remove specific solder balls from high density chips, substrate solder ball terminal connections, card or board solder ball connections, or other solder ball array for the purpose of customizing the electrical functionality of a module. The tool also allows for the removal of damaged or defective solder balls for the purpose of replacement with defect free solder balls.