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TAP TIMES      -28-                                  DECEMBER 2022


                 Silicon wafer shipments may set record this year — SEMI


        MILPITAS, Calif.  —Global silicon wa-                   The growth is expected to temper in 2023
        fer shipments are projected to in-                      due to challenging macroeconomic con-
        crease 4.8% year-over-year in 2022                      ditions but is forecast to rebound in the
        to a record high of nearly 14,700 mil-                  years that follow on strong demand for
        lions of square inches (MSI), SEMI                      semiconductors used in data center, auto-
        reported in its annual silicon shipment                 motive and industrial applications.
        forecast for the semiconductor indus-                                                           semi.org
        try.
























                   Math problem (from 27)                       where they would jot down their math-
                                                                ematical proofs on sheets of paper.
        That meant Kummer was right—something
        funny was going on with his sums for 45                 Based on Health-Brown’s work
        primes. But proving why this is the case                Their solution was based on work by Roger
        would have to wait until last year when                 Heath-Brown of the University of Oxford,
        Dunn and Radziwill fi nally fi gured it out.            who had seen a talk by Patterson at the
                                                                University of Cambridge in the late 1970s.
        “The bias seen with a few numbers is like
        having a physically impossible coin that is             Heath-Brown and Patterson teamed up to
        slightly weighted toward heads, but be-                 work on the problem, and then, in 2000,
        comes less and less so the more often you               Heath-Brown developed a tool known as a
        fl ip it,” Radziwill explains.                          cubic large sieve to help prove Patterson’s
                                                                conjecture. He got close but the complete
        Working together                                        solution remained out of reach.
        The two Caltech researchers decided to
        work together to try to crack the problem of  Dunn and Radziwill cracked the problem
        Patterson’s conjecture about two years ago.  when they realized that the sieve wasn’t
                                                                working properly, or had a “barrier” that
        They had not spent much time together                   they were able to remove. caltech.edu
        on campus due to the pandemic, but they
        bumped into each other in a parking lot in
        Pasadena and got to talking. They decided                     Need greater name recognition?
        to meet in parks to work on the problem,                           Advertise in TAP TIMES!
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