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Optical proximity correction (OPC) is a photolithography enhancement technique commonly used to compensate for image errors due to diffraction or process effects. The need for OPC is seen mainly in the making of semiconductor devices and is due to the limitations of light to maintain the edge placement integrity of the original design, after ...
In conventional approaches known as the optical proximity correction (OPC) a "target" shape is augmented with carefully tuned rectangles to produce a "Manhattan shape" for the "source", as shown in the illustration. The ILT approach generates curvilinear shapes for the "source", which deliver better approximations for the "target".
The OPC specification was based on the OLE, COM, and DCOM technologies developed by Microsoft Corporation for the Microsoft Windows operating system family. The specification defined a standard set of objects, interfaces e.g. IDL and methods for use in process control and manufacturing automation applications to facilitate interoperability.
OPC Unified Architecture (OPC UA) is a cross-platform, open-source, IEC62541 standard for data exchange from sensors to cloud applications developed by the OPC Foundation. Distinguishing characteristics are: [ 1 ]
OPC Foundation, a related consortium Operations Planning and Control, from Tivoli Software , known as IBM Tivoli Workload Scheduler Optimized Power Control , a method to adjust laser power when writing optical media.
OPC was preceded by the Special Procedures Group (SPG), whose creation in March 1948 [1] had been authorized in December 1947 with President Harry Truman's approval of the top-secret policy paper NSC 4-A. [2] SPG was located within the CIA's Office of Special Operations (OSO), the CIA department responsible for intelligence collection, and was first used to influence the Italian election of ...
10G-PON (also known as XG-PON or G.987) is a 2010 computer networking standard for data links, capable of delivering shared Internet access rates up to 10 Gbit/s (gigabits per second) over dark fiber.
LonTalk is a networking protocol. Originally developed by Echelon Corporation for networking devices over media such as twisted pair, powerlines, fiber optics, and RF.It is popular for the automation of various functions in industrial control, home automation, transportation, and buildings systems such as lighting and HVAC (such as in intelligent buildings), the protocol has now been adopted ...