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2. Optical proximity correction - Wikipedia

   en.wikipedia.org/wiki/Optical_proximity_correction

   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 ...

3. Inverse lithography - Wikipedia

   en.wikipedia.org/wiki/Inverse_lithography

   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".

4. Open Packaging Conventions - Wikipedia

   en.wikipedia.org/wiki/Open_Packaging_Conventions

   The OPC is specified in Part 2 of the Office Open XML standards ISO/IEC 29500:2008 and ECMA-376. [1] [2]The ISO/IEC 29500-2:2008 specification and the second edition of ECMA-376 makes a normative reference to PKWARE, Inc.'s .ZIP File Format Specification version 6.2.0 (2004), and supplements it with a normative set of clarifications.

5. OPC Unified Architecture - Wikipedia

   en.wikipedia.org/wiki/OPC_Unified_Architecture

   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 ]

6. Two-tone testing - Wikipedia

   en.wikipedia.org/wiki/Two-tone_testing

   A test setup suitable for testing receivers at microwave frequencies is shown in the figure. The two signal generators, F1 and F2, are combined using a directional coupler in reverse. That is, the two generators are connected to what would normally be the coupled and transmitted output ports respectively.

7. March Madness bracket predictions: No. 1 seeds to first four ...

   www.aol.com/march-madness-bracket-predictions-no...

   Auburn (22-2, 10-1 SEC) Alabama (21-3, 10-1 SEC) Duke (21-3, 11-1 ACC) ... Memphis will be an interesting test case for the tournament’s selection committee when it comes to seeding. Penny ...