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Electronics

            Excimer Laser Gas Mixtures




            Gas Mixtures for Integrated
            Circuit Laser Annealing             HCI/Neon (308)                    0.5% Hydrogen in Neon
            HCI, Hydrogen, Neon, and Xenon      Major Components                  Major Components
            Praxair has combined its leading    HCI           0.50%               H 2           0.50%
                                                                                  Ne
                                                              Balance
                                                                                                Balance
                                                Ne
            edge precision mixture manufacturing
            technology with its captive rare gas   Impurities (ppm)   < 1         Impurities (ppm)   < 0.15
                                                                                  CO + CO 2
                                                CO
            production to offer a secure and cost   Fe        < 1                 H 2 O         < 5
            competitive supply of excimer laser    H 2 O      < 2                               < 5
            gas mixtures.                                                         N 2
                                                N 2           < 15                O 2           < 1
            Praxair’s excimer laser products are   O 2        < 2                 THC           < 0.1
            available to support annealing for
     Electronics
            integrated circuit processing at the
            308 nm wavelength. These gas
            mixtures have been OEM and          Neon 99.999%                      10% Xenon in Neon
            customer tested in high volume      Impurities (ppm)                  Major Components
            manufacturing operations.           CH 4          < 0.5               Xe            10%
                                                CO            < 0.5               Ne            Balance
            Key Benefits                        CO 2          < 0.5               Impurities (ppm)
            n   OEM and customer tested         H 2 O         < 0.5               Ar            < 5
            n   Secure raw material supply      He            < 8                 CF 4          < 0.1
            n   Local production and warehousing  N 2         < 1                 H 2 O         < 1
            n   High precision analytical and    O 2          < 0.5               Kr            < 8
              production control                                                                < 5
                                                                                  N 2
                                                                                  O 2           < 0.5
                                                                                  THC           < 0.1




                                                Cylinder     Valve        Contents     Pressure
                                                Per customer   CGA or DISS   Per customer   Per customer
                                                specifications            specifications   specifications






                                              i

                                              Contact your local Praxair representative
                                              or call 1.877.PRAXAIR to learn more about
                                              other Excimer Laser Gas applications.






















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