摘要:
The formation of sintered glass-ceramic substrates containing multi-level, interconnected thick-film circuit patterns of copper-based conductors obtained by firing in a controlled ambient of hydrogen and H.sub.2 O at temperatures below the melting point of copper.
摘要:
A method for fabricating a molecular matrix print head for use in nonimpact electrolytic printers. Green ceramic sheets are stacked and laminated, then embossed with insulators and screened with ruthenium dioxide. The assembly is then co-sintered at less than 1000.degree. C. and the resulting structure smoothed by lapping and finished in a convention fashion.
摘要:
The various embodiments of the present invention provide a stress-relieving, second-level interconnect structure that is low-cost and accommodates TCE mismatch between low-TCE packages and PCBs. The various embodiments of the interconnect structure are reworkable and can be scaled to pitches from about 1 millimeter (mm) to about 150 micrometers (μm). The interconnect structure comprises at least a first pad, a supporting pillar, and a solder bump, wherein the first pad and supporting pillar are operative to absorb substantially all plastic strain, therefore enhancing compliance between the two electronic components. The versatility, scalability, and stress-relieving properties of the interconnect structure of the present invention make it a desirable structure to utilize in current two-dimensional and ever-evolving three-dimensional IC structures.
摘要:
A seal glass for unitizing an array of glass nozzles of an ink jet printer. The seal glasses are corrosion resistant to alkaline and acidic inks, and have low softening points, medium high expansivities and anneal points and are compatible with the nozzle glasses.
摘要:
A copper oxide containing seal glass is formed by a controlled low temperature process which reduces the formation of seeds in the glass. In one embodiment the glass is prepared in two portions with the first portion containing the high melting oxides and the second portion containing the low melting oxides. The copper oxide is added to the second portion and the two portions are combined to form the seal glass at temperatures below about 800.degree.C which reduces the formation of Cu.sub.2 O crystals in the glass.
摘要:
The various embodiments of the present invention provide a novel chip-last embedded structure, wherein an IC is embedded within a one to two metal layer substrate. The various embodiments of the present invention are comparable to other two-dimensional and three-dimensional WLFO packages of the prior art as the embodiments have similar package thicknesses and X-Y form factors, short interconnect lengths, fine-pitch interconnects to chip I/Os, a reduced layer count for re-distribution of chip I/O pads to ball grid arrays (BGA) or land grid arrays (LGA), and improved thermal management options.
摘要:
A sintering process is described using a glass-ceramic slurry containing an alloy powder or flakes selected from a group of alloys consisting of:______________________________________ Fe--Cr Cu--Ti Fe--Cr--Ni Ag--Ti Cr--Al Nb--Al Ni--Cr Cu--Al Ni--Al Cu--Al--Cr Fe--Al ______________________________________ The slurry is molded and later is sintered in a steam atmosphere at a temperature of about 1000.degree. C. to yield a glass-ceramic substrate toughened against crack propagation and useful in the packaging of semi-conductor device chips.
摘要:
The lifetime of multiple capillary nozzle assemblies embedded in a glass mass, of a multiple nozzle ink-jet printer, can be increased and the thermal and mechanical compatibility of the resulting package enhanced by fabrication of the nozzles from glass compositions comprised of SiO.sub.2, ZrO.sub.2, Na.sub.2 O, K.sub.2 O and MgO. Inclusion of ZrO.sub.2 as well as minor amounts of BaO, MgO, CaO, and Al.sub.2 O.sub.3 enhances the alkali resistance of the glass nozzles. Also, the high SiO.sub.2 content of the glasses combined with the presence of ZrO.sub.2, MgO, CaO, and Al.sub.2 O.sub.3 imparts an acid resistance to the nozzles.
摘要翻译:可以增加嵌入在多喷嘴喷墨打印机的玻璃块中的多个毛细管喷嘴组件的寿命,并且通过从由SiO 2,ZrO 2,ZrO 2等组成的玻璃组合物制造喷嘴来增强所得包装的热和机械相容性, Na2O,K2O和MgO。 包含ZrO 2以及少量的BaO,MgO,CaO和Al 2 O 3可提高玻璃喷嘴的耐碱性。 此外,玻璃的高SiO 2含量与ZrO 2,MgO,CaO和Al 2 O 3的存在相结合,赋予喷嘴耐酸性。
摘要:
The various embodiments of the present invention provide fine pitch, chip-to-substrate interconnect assemblies, as well as methods of making and using the assemblies. The assemblies generally include a semiconductor having a die pad and a bump disposed thereon and a substrate having a substrate pad disposed thereon. The bump is configured to electrically interconnect at least a portion of the semiconductor with at least a portion of the substrate when the bump is contacted with the substrate pad. In addition, when the bump is contacted to the substrate pad, at least a portion of the bump and at least a portion of the substrate pad are deformed so as to create a non-metallurgical bond therebetween.
摘要:
Nano-structured interconnect formation and a reworkable bonding process using solder films. Large area fabrication of nano-structured interconnects is demonstrated at a very fine pitch. This technology can be used for pushing the limits of current flip chip bonding in terms of pitch, number of I/Os, superior combination of electrical and mechanical properties as well as reworkability. Sol-gel and electroless processes were developed to demonstrate film bonding interfaces between metallic pads and nano interconnects. Solution-derived nano-solder technology is an attractive low-cost method for several applications such as MEMS hermetic packaging, compliant interconnect bonding and bump-less nano-interconnects.