摘要:
Disclosed are structures comprising a composite of fluorinated particulate carbon dispersed in a polymer, the fluorinated carbon being present in an amount sufficient to reduce the dielectric constant of the composition, the structure also including electrical conductor patterns.The composite can be made conductive by irradiating it with an UV excimer laser.
摘要:
A method and apparatus for producing fine line patterns on insulating surfaces utilizing a conductive spring-like cantilever having a pointed tip which is in proximity to the surface to be affected. Electrons emitted from the tip travel toward the insulator surface and cause changes therein or affect molecules located in the proximity of the insulator surface. Tunneling current is not required, and a highly conducting return current path for electrons through the insulator is not necessary. The incident electrons can be used to provide patterned, narrow-width features either by deposition of a material onto the insulator surface, or by producing etching in localized regions of the insulator surface, or by changing the insulator surface so that it can be etched.
摘要:
Automated bonding of chips to tape and formation of bonding structures on Tape Automated Bonding (TAB) packaging structures are provided with bonding balls on the ends of beams leads of the TAB tape. Also balltape bonding balls are aligned on stacked TAB sheets and bonded together to form via interconnections through stacked balltape balls in multilayer, electronic packaging structures. Interconnection structures are provided for a universal chip connection laminate which can be applied between a chip and an MLC package. Area TAB tape, which comprises a modification of TAB tape provides balltape TAB connections by means of balltape bonds to areas within the interior of a chip whose leads are bonded in a TAB tape arrangement to the Inner Lead Bonds of the area tape.
摘要:
Ion implanted impurity activation in a multi-element compound semiconductor crystal such as gallium arsenide, GaAs, over a broad integrated circuit device area, is accomplished using a short time anneal, in the proximity of a uniform concentration of the most volatile element of said crystal, in solid form, over the broad integrated circuit device area surface. A GaAs integrated circuit wafer having ion implanted impurities in the surface for an integrated circuit is annealed in the vicinity of 800.degree.-900.degree. C. for a time of the order of 1-20 seconds in the proximity of a uniform layer of solid arsenic.
摘要:
The disclosure provides for the use of a group II-VI compound semiconductor as a surface passivator to control recombination of charge carriers at the surface of a group III-V compound semiconductor by a localized heating step. It is theorized for practice of the invention that the control of the recombination of the charge carriers is achieved by chemical reaction of the II-VI compound with excess group V element. In particular the disclosure provides for the use of a capping layer of laser annealed ZnS as a passivating layer on a GaAs device.
摘要:
Enhanced efficiency can be achieved in the construction of semiconductor optical energy conversion devices such as solar cells by providing a translucent frequency shifting supporting member with appropriate doping such as Al.sub.2 O.sub.3 :Cr.sup.+3 (Ruby) that is capable of shifting the wavelength of incident light energy in the direction of greatest efficiency of the semiconductor device. The efficiency can be further enhanced by providing a crystal perfection accommodation region between the active region of the device and the light frequency shifting substrate.
摘要翻译:通过提供具有适当掺杂的半透明变频支撑构件,例如能够移动入射光能量的波长的Al 2 O 3 :Cr + 3(红宝石),可以在诸如太阳能电池的半导体光能转换装置的构造中实现增强的效率 在半导体器件效率最高的方向。 通过在器件的有源区域和光变换衬底之间提供晶体完整的容纳区域可以进一步提高效率。
摘要:
Disclosed is a process of effecting a change in the dielectric constant and coefficient of thermal expansion of a polyimide material, by forming a composite based on a dispersion of 2-60 wt. % of fluorinated particulate carbon material and a polyimide or polyimide precursor, and heating the dispersion to about 400.degree. C. at 65.degree.-200.degree. C./second.
摘要:
The formation of lines of the order of 8 Angstroms wide is achieved using a tunneling current through a gas that changes to provide a residue that is the basis of the line. The tunneling current energy is tuned to the energy required to dissociate the gas.
摘要:
Disclosed are structures comprising a composite of fluorinated particulate carbon dispersed in a polymer, the fluorinated carbon being present in an amount sufficient to reduce the dielectric constant of the composition, the structure also including electrical conductor patterns.The composite can be made conductive by irradiating it with an UV excimer laser.
摘要:
A doped or undoped photoresponsive material having metallic precipitates, and a PiN photodiode utilizing the material for detecting light having a wavelength of 1.3 micrometers. The PiN photodiode includes a substrate having a first compound semiconductor layer disposed thereon. The PiN photodiode further includes an optically responsive compound semiconductor layer disposed above the first compound semiconductor layer. The optically responsive layer includes a plurality of buried Schottky barriers, each of which is associated with an inclusion within a crystal lattice of a Group III-V material. The PiN device also includes a further compound semiconductor layer disposed above the optically responsive layer. For a transversely illuminated embodiment, waveguiding layers may also be disposed above and below the PiN structure. In one example the optically responsive layer is comprised of GaAs:As. The GaAs:As exhibits a very low room temperature dark current, even under forward bias conditions, and a responsivity to 1.3 micrometer radiation modulated at frequencies greater than 1 GHz.