摘要:
A wafer having an asymmetric edge profile is provided. The wafer has a disk-like body. The disc-like body has a first main surface, a second main surface parallel to the first main surface, and an edge region. The disk-like body has a central line defined between the first main surface and the second main surface, the edge region has an edge profile, and the edge profile is asymmetric with respect to the central line of the first main surface and the second main surface.
摘要:
First, a wafer having a first surface and a second surface is provided. Then, a first heat sensitive tape is utilized to bond the second surface of the wafer to a first carrier, and at least a first semiconductor process is performed upon the first surface of the wafer. Subsequently, a second heat sensitive tape is utilized to bond the first surface of the wafer to a second carrier, and the first heat sensitive tape is separated from the second surface of the wafer by heating. Following that, at least a second semiconductor process is performed upon the second surface of the wafer, and the second heat sensitive tape is separated from the first surface of the wafer by heating.
摘要:
A wafer having an asymmetric edge profile is provided. The wafer has a disk-like body. The disc-like body has a first main surface, a second main surface parallel to the first main surface, and an edge region. The disk-like body has a central line defined between the first main surface and the second main surface, the edge region has an edge profile, and the edge profile is asymmetric with respect to the central line of the first main surface and the second main surface.
摘要:
A high band-gap opto-electronic device is formed by epitaxially growing the device section in a lattice-matched (Al.sub.x Ga.sub.1-x).sub.y In.sub.1-y P-GaAs system. The band-gap of the epitaxial layer increases with x. Instead of growing the device section directly on the GaAs substrate, a layer of (Al.sub.x Ga.sub.1-x).sub.y In.sub.1-y P, graded in x and in temperature while maintaining substantially y=0.5, is grown as a transitional layer. The high band-gap device structures include homojunctions, heterojunctions and particularly a separate confinement quantum well heterostructures. Various embodiments of the invention include devices on absorbing substrates and on transparent substrates, and devices incorporating strained-layer superlattices.
摘要翻译:通过在晶格匹配(Al x Ga 1-x)y In 1-y -P-GaAs系统中外延生长器件部分来形成高带隙光电器件。 外延层的带隙随x增加。 不是直接在GaAs衬底上生长器件部分,而是在保持基本上为y = 0.5的同时以x和温度分级的(Al x Ga 1-x)y In 1-y P层被生长为过渡层。 高带隙器件结构包括同功能,异质结,特别是单独的约束量子阱异质结构。 本发明的各种实施例包括吸收衬底和透明衬底上的器件以及包含应变层超晶格的器件。
摘要:
A high band-gap opto-electronic device is formed by epitaxially growing the device section in a lattice-matched (Al.sub.x Ga.sub.1-x).sub.y In.sub.1-y P-GaAs system. The band-gap of the epitaxial layer increases with x. Instead of growing the device section directly on the GaAs substrate, a layer of (Al.sub.x Ga.sub.1-x).sub.y In.sub.1-7 P, graded in x and in temperature while maintaining substantially y=0.5, is grown as a transitional layer. The high band-gap device structures include homojunctions, heterojunctions and particularly a separate confinement quantum well heterostructures. Various embodiments of the invention include devices on absorbing substrates and on transparent substrates, and devices incorporating strained-layer superlattices.
摘要:
A method of thinning a wafer. A wafer is provided, and the front surface of the wafer is bonded to a carrier wafer with a bonding layer. The bonding layer is a thermal release tape or a UV tape. Subsequently, a wafer thinning process is performed to thin the wafer from the back surface.
摘要:
A recurring natural water cooling device is provided. The recurring natural water cooling device includes a flow channel through which a natural water flow from a natural water source is circulated, a thermal exchanging device through which a thermal fluid flows and being placed in the flow channel so as to transfer a heat of the thermal fluid to the natural water flow, a power device speeding up the circulated natural water, and a plurality of diversion devices communicatively connecting the natural water source and the flow channel.