Patent classifications
H01L2924/2075
PROCESS FOR ELECTRICALLY CONNECTING CONTACT SURFACES OF ELECTRONIC COMPONENTS
A process for electrically connecting contact surfaces of electronic components by capillary wedge bonding a round wire of 8 to 80 μm to the contact surface of a first electronic component, forming a wire loop, and stitch bonding the wire to the contact surface of a second electronic component, wherein the wire comprises a wire core having a silver or silver-based wire core with a double-layered coating comprised of a 1 to 50 nm thick inner layer of nickel or palladium and an adjacent 5 to 200 nm thick outer layer of gold.
PROCESS FOR ELECTRICALLY CONNECTING CONTACT SURFACES OF ELECTRONIC COMPONENTS
A process for electrically connecting contact surfaces of electronic components by capillary wedge bonding a round wire of 8 to 80 μm to the contact surface of a first electronic component, forming a wire loop, and stitch bonding the wire to the contact surface of a second electronic component, wherein the wire comprises a wire core having a silver or silver-based wire core with a double-layered coating comprised of a 1 to 50 nm thick inner layer of nickel or palladium and an adjacent 5 to 200 nm thick outer layer of gold.
Coated wire
A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.-% and (c3) further components in a total amount of from 0 to 100 wt.-ppm, or (d) a doped silver alloy consisting of (d1) silver in an amount in the range of from >89.49 to 99.497 wt.-%, (d2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm, (d3) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.-% and (d4) further components in a total amount of from 0 to 100 wt.-ppm, wherein the at least one doping element (d2) is other than the at least one alloying element (d3), wherein the individual amount of any further component is less than 30 wt.-ppm, wherein the individual amount of any doping element is at least 30 wt.-ppm, wherein all amounts in wt.-% and wt.-ppm are based on the total weight of the core, and wherein the coating layer is a double-layer comprised of a 1 to 1000 nm inner layer of gold and an adjacent 0.5 to 100 nm thick outer layer of palladium or a double-layer comprised of a 0.5 to 100 nm thick inner layer of palladium and an adjacent >200 to 1000 nm thick outer layer of gold.
Coated wire
A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.-% and (c3) further components in a total amount of from 0 to 100 wt.-ppm, or (d) a doped silver alloy consisting of (d1) silver in an amount in the range of from >89.49 to 99.497 wt.-%, (d2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm, (d3) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.-% and (d4) further components in a total amount of from 0 to 100 wt.-ppm, wherein the at least one doping element (d2) is other than the at least one alloying element (d3), wherein the individual amount of any further component is less than 30 wt.-ppm, wherein the individual amount of any doping element is at least 30 wt.-ppm, wherein all amounts in wt.-% and wt.-ppm are based on the total weight of the core, and wherein the coating layer is a double-layer comprised of a 1 to 1000 nm inner layer of gold and an adjacent 0.5 to 100 nm thick outer layer of palladium or a double-layer comprised of a 0.5 to 100 nm thick inner layer of palladium and an adjacent >200 to 1000 nm thick outer layer of gold.
SILVER BONDING WIRE AND METHOD OF MANUFACTURING THE SAME
A bonding wire and a method of manufacturing the bonding wire are provided. The bonding wire contains 90.0 to 99.0 wt % of silver (Ag); 0.2 to 2.0 wt % of gold (Au); 0.2 to 4.0 wt % of palladium (Pd), platinum (Pt), rhodium (Rh), or a combination thereof; 10 to 1000 ppm of dopants; and inevitable impurities. In the wire, the ratio of (a)/(b) is 3 to 5, in which (a) represents the amount of crystal grains having <100> orientation in crystalline orientations <hkl> in a wire lengthwise direction and (b) represents the amount of crystal grains having <111> orientation in crystalline orientations <hkl> in the wire lengthwise direction.
SILVER BONDING WIRE AND METHOD OF MANUFACTURING THE SAME
A bonding wire and a method of manufacturing the bonding wire are provided. The bonding wire contains 90.0 to 99.0 wt % of silver (Ag); 0.2 to 2.0 wt % of gold (Au); 0.2 to 4.0 wt % of palladium (Pd), platinum (Pt), rhodium (Rh), or a combination thereof; 10 to 1000 ppm of dopants; and inevitable impurities. In the wire, the ratio of (a)/(b) is 3 to 5, in which (a) represents the amount of crystal grains having <100> orientation in crystalline orientations <hkl> in a wire lengthwise direction and (b) represents the amount of crystal grains having <111> orientation in crystalline orientations <hkl> in the wire lengthwise direction.
Wire bond wires for interference shielding
Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.
Wire bond wires for interference shielding
Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.
Wire bond wires for interference shielding
Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.
Wire bond wires for interference shielding
Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.