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1. 发明授权

US4771325A Integrated photodetector-amplifier device 失效
标题翻译：集成光电检测放大器装置
公开(公告)号：US4771325A
公开(公告)日：1988-09-13
申请号：US700441
申请日：1985-02-11
申请人： Julian Cheng , Bernard C. DeLoach, Jr. , Stephen R. Forrest
发明人： Julian Cheng , Bernard C. DeLoach, Jr. , Stephen R. Forrest
IPC分类号： H01L27/14 , H01L27/144 , H01L27/146 , H01L31/10 , H01L31/105 , H01L33/00
CPC分类号： H01L31/105 , H01L27/1443
摘要： An integrated photodetector-amplifier is described which is planar and exhibits excellent circuit characteristics including low input capacitance, high speed, and high sensitivity. Also, certain self-alignment features and a planar technology made fabrication of the circuits simpler and easier than most such circuits.
摘要翻译：描述了一种平面的集成光电检测器 - 放大器，并且具有包括低输入电容，高速度和高灵敏度的优异的电路特性。此外，某些自对准特征和平面技术使得电路的制造比大多数这样的电路更简单和容易。

2. 发明授权

US4767429A Glass body formed from a vapor-derived gel and process for producing same 失效
标题翻译：由蒸气衍生的凝胶形成的玻璃体及其制造方法
公开(公告)号：US4767429A
公开(公告)日：1988-08-30
申请号：US940393
申请日：1986-12-11
申请人： James W. Fleming , Sandra A. Pardenek
发明人： James W. Fleming , Sandra A. Pardenek
IPC分类号： G02B6/00 , C03B8/02 , C03B19/01 , C03B19/12 , C03B37/014 , C03B37/016 , C03C1/00 , C03C3/06 , C03B37/00 , C03C25/02
CPC分类号： C03B37/014 , C03B19/01 , C03B19/12 , C03B37/016 , C03C1/006 , Y10S65/06 , Y10S65/90 , Y10S65/901
摘要： The disclosed simple, economical and rapid sol-gel process for forming a silica-based glass body, termed the "vapogel" process, comprises introduction of a silicon halide-containing gas (e.g., SiCl.sub.4 +O.sub.2) into an aqueous medium. The thus formed sol can gel within minutes, resulting in a monolithic gel from which particles having a narrow size distribution can easily be formed. The thus formed particles can be used to produce a glass body such as an optical fiber. Various techniques for forming the glass body from the gel are disclosed. Among the many advantages of the vapogel method are its ability to produce very homogeneous mixed oxide glasses of composition not obtainable by prior art sol-gel processes, and the advantageous mechanical properties of the gel produced by the method. The latter makes possible, inter alia, formation of particles having a relatively narrow size distribution.
摘要翻译：公开的用于形成二氧化硅基玻璃体的简单，经济和快速的溶胶 - 凝胶方法，称为“蒸发器”方法，包括将含卤化硅的气体（例如SiCl 4 + O 2）引入水性介质中。这样形成的溶胶可以在数分钟内凝胶化，从而可以容易地形成具有窄尺寸分布的颗粒的整体凝胶。这样形成的颗粒可以用于制造诸如光纤的玻璃体。公开了从凝胶形成玻璃体的各种技术。蒸发蒸汽法的许多优点之一是其能够生产通过现有技术的溶胶 - 凝胶方法得不到的组合物的非常均匀的混合氧化物玻璃以及通过该方法制备的凝胶的有利的机械性能。后者尤其是形成具有相对较窄尺寸分布的颗粒。

3. 发明授权

US4904087A Method for aligning photomasks 失效
标题翻译：光掩模对齐方法
公开(公告)号：US4904087A
公开(公告)日：1990-02-27
申请号：US274215
申请日：1988-11-21
申请人： George T. Harvey , Laurence S. Watkins
发明人： George T. Harvey , Laurence S. Watkins
IPC分类号： G03F9/00 , H01L21/68
CPC分类号： G03F9/7076 , H01L21/682
摘要： Photomasks (11, 12) are aligned on opposite sides of a wafer by directing light beams through zone plates (13 A-C) in one photomask and through aligned transparent slits (14 A-C) on the other photomask. Simulantaneous detection of the beams by photodetectors (18 A-C) indicates alignment. A method for obtaining precise centering by scanning the slits with the beams, sampling light transmitted through the slits, and fitting the samples to a parabola by the use of a computer (27) is also described.
摘要翻译：通过将光束通过一个光掩模中的区域板（13A-C）并通过另一光掩模上的对准的透明狭缝（14A-C）而将光掩模（11,12）对准在晶片的相对侧上。通过光电检测器（18A-C）对光束的模拟检测表示对准。还描述了通过用光束扫描狭缝来获得精确对中的方法，通过狭缝透射透光的采样光，以及通过使用计算机（27）将样品装配到抛物线上。

4. 发明授权

US4677323A Field-effect transistor current switching circuit 失效
标题翻译：场效应晶体管电流开关电路
公开(公告)号：US4677323A
公开(公告)日：1987-06-30
申请号：US757335
申请日：1985-07-22
申请人： Douglas G. Marsh
发明人： Douglas G. Marsh
IPC分类号： H03K17/693 , H03K17/041 , H03K17/16 , H03M1/00 , H03M1/80 , H03K17/687 , G05F3/16 , H03F3/45
CPC分类号： H03K17/04106 , H03K17/162
摘要： An MOS current steering circuit (10) includes a current mirror arrangement with an input branch (12) and an output branch (16). In the input branch, the conduction channels of a current-limiting transistor (M1) and a current mirror input transistor (M3) are connected in series with each other between a first power supply voltage node V+ and one side of a current source (14). The other side of the current source and the gate of the current-limiting transistor are connected to another supply voltage node (V-). In the output branch, a current mirror output transistor (M4) has one side of its conduction channel connected as a current output node (D). The gates of the input and output transistors are connected together and to the common node (A) of the input transistor and the current source. A control transistor (M2) has its conduction channel connected between the other side of the output transistor and the first voltage supply node. The control transistor switches the output transistor by controlling the output transistor's gate-to-source voltage. Also disclosed are modified versions which include a circuit (20) designed for greater accuracy in the output and a circuit (22) designed for digital-to-analog conversion functions.
摘要翻译： MOS电流转向电路（10）包括具有输入分支（12）和输出分支（16）的电流镜装置。在输入支路中，限流晶体管（M1）和电流镜输入晶体管（M3）的导通通道在第一电源电压节点V +和电流源14的一侧彼此串联连接）。电流源的另一侧和限流晶体管的栅极连接到另一个电源电压节点（V-）。在输出分支中，电流镜输出晶体管（M4）的导通通道的一侧作为电流输出节点（D）连接。输入和输出晶体管的栅极连接在一起并连接到输入晶体管和电流源的公共节点（A）。控制晶体管（M2）的导通通道连接在输出晶体管的另一侧和第一电压供应节点之间。控制晶体管通过控制输出晶体管的栅极 - 源极电压来切换输出晶体管。还公开了修改版本，其包括被设计用于在输出中更高精度的电路（20）和被设计用于数模转换功能的电路（22）。

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