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    • 81. 发明公开
    • A method for producing a semiconductor laser device
    • Herstellungsverfahrenfüreinen Halbleiterlaser。
    • EP0558856A2
    • 1993-09-08
    • EP92311823.6
    • 1992-12-24
    • SHARP KABUSHIKI KAISHA
    • Watanabe, MasanoriOhbayashi, KenSasaki, KazuakiYamamoto, OsamuMatsumoto, Mitsuhiro
    • H01S3/025
    • H01S5/0425H01S5/0201H01S5/0281H01S5/164Y10S148/026Y10S148/095Y10S148/104Y10S148/106Y10S148/143Y10S438/945
    • A method for producing a semiconductor laser device includes the steps of: forming semiconductor window layers on either one of a top surface of an internal structure or a reverse surface of a substrate (10) and on light-emitting end facets (30A,30B) of the internal structure; forming a reflection film (34) on the light-emitting end facets; removing the window layer formed on either one of the top surface or the reverse surface by using an etchant which hardly etches the reflection film; and forming electrodes on the surface from which the window layer is removed by etching and on the other surface. Another method for producing a semiconductor laser device includes the steps of: forming semiconductor window layers on light-emitting end facets of the bars (2); inserting the bars (2) into an apparatus having openings for forming electrodes and a supporting portion for preventing a positional shift between the bars (2) and the openings, and forming the electrodes on the top surfaces and the reverse surfaces of the bars (2); and cutting the bars (2) into the chips.
    • 一种制造半导体激光器件的方法包括以下步骤:在内部结构的顶表面或衬底(10)的背面和发光端面(30A,30B)上的任一个上形成半导体窗口层, 的内部结构; 在发光端面上形成反射膜(34); 通过使用几乎不蚀刻反射膜的蚀刻剂去除形成在顶表面或反面中的任一个上的窗口层; 以及在通过蚀刻除去窗口层的表面上形成电极,并在另一个表面上形成电极。 制造半导体激光器件的另一种方法包括以下步骤:在条(2)的发光端面上形成半导体窗口层; 将杆(2)插入具有用于形成电极的开口的装置和用于防止杆(2)和开口之间的位置偏移的支撑部分,并且在杆(2)的顶表面和反面上形成电极 ); 并将条(2)切割成芯片。
    • 85. 发明公开
    • Multilevel resist plated transfer layer process for fine line lithography
    • Feinstruktur-Litographieverfahren unter Verwendung von Fotolackschichten und einer plattierten Transferschicht。
    • EP0384145A1
    • 1990-08-29
    • EP90101421.7
    • 1990-01-24
    • Hewlett-Packard Company
    • Studebaker, Lawrence G.Wong, Edward H.
    • H01L21/027H01L29/812H01L21/28H01L21/328
    • H01L29/66863H01L21/0272H01L21/31144Y10S148/10Y10S148/105Y10S148/143Y10S438/945Y10S438/947Y10S438/949
    • A multilevel resist process for fine line e-beam lithography, or, alternatively, deep ultraviolet (DUV) optical lithography with a clear field mask involving the use of a plated transfer layer for image reversal. The process preferably uses a high brightness, quarter-micron diameter electron beam and a high speed negative resist to fabricate microwave MESFETs, MODFETS, and integrated circuits with gate lengths of 0.25 micron and below. This is achieved by producing a line of negative resist which can be developed to 0.25 micron or below. A plated transfer layer is then applied which provides image reversal, converting the line of resist into an opening suitable for conventional gate recess etching, gate metal deposition, and lift-off. A positive resist can be substituted for the negative e-­beam resist and exposed with DUV through a clear field mask instead of an electron beam for the fabrication of MESFETs.
    • 用于细线电子束光刻的多层抗蚀剂工艺,或者具有涉及使用电镀转移层进行图像反转的清晰场屏蔽的深紫外(DUV)光刻。 该工艺优选使用高亮度,四分之一微米直径的电子束和高速负抗蚀剂来制造微米MESFET,MODFET和栅极长度为0.25微米及以下的集成电路。 这是通过生产可以显影至0.25微米或更低的负性抗蚀剂线来实现的。 然后施加电镀转印层,其提供图像反转,将抗蚀剂线转换成适合于常规栅极凹槽蚀刻,栅极金属沉积和剥离的开口。 正抗蚀剂可以代替负电子束抗蚀剂,并通过清除场掩膜而不是用于制造MESFET的电子束用DUV曝光。