Page 19 - Electric&Electronics - Total Solution for Analyzing Electronic Devices
P. 19

Environmental Measurement



 Measurement of Emission Gases  Analysis and Management of Water


 ● Analysis of Gases Emitted from Components  ● Management of Ultrapure Water, Recovered Water, Ef uents, and Plating Solutions



 Trap Headspace GCMS System  Combustion-Type Laboratory TOC Analyzer
 HS-20 NX Trap  TOC-L CPH / CSH


 Headspace GCMS systems heat samples sealed in a vial and then inject   These analyzers are useful for a wide range of applications, from managing
 the evolved gas phase into a GCMS system. Due to their ability to heat   ultra-pure rinse water for semiconductor manufacturing processes to managing
 samples to temperatures up to 300 °C, they can be used to measure   recovered water that contains acids, alkalines, and salts.
 gases emitted from electronic components. High heat-resistance septa
 with minimal cyclosiloxane leaching are also available.
            Online TOC Analyzer for Puri ed Water
 Cyclosiloxanes (m/z 73) Outgassed
 n=5   6   7   8   9  10  11  12 13 14  15  16  TOC-1000e
 from Plastic
 High Recovery Rates Achieved Even
 for High-Boiling Components  Sample heated to 300 ℃  This mercury-free model features the world’s smallest and lightest body and uses
            an excimer lamp.
            The ultra-high sensitivity with a detection limit of 0.1 µg/L achieved by the
 Sample heated to 220 ℃
 7.5   10.0  12.5  15.0  17.5  20.0  22.5  25.0  conductivity measurement method makes this model ideal for continuous
            monitoring of ultrapure water. In addition to functionality for viewing data via
 Measurement of Gases Emitted   nBuOH  Hexanal  a web browser by outputting results to a USB port or tablet, it includes extensive
 from Electronic Components  security functionality, such as an operation log function.
 2,3-Dimethylpentane  3-Methoxy-3-methylbutanol
 (×1,000)2-n-Pentylfuran
 Pentanal   2.50
 2-n-Pentylfuran  Nonanal  2.25
 Heptanal  Octanal  2.00  Trap mode
 peak area
 1.75  value                                                         8.0
 53596
 1.50                                                                7.0
 1.25                                                                6.0
 1.00  Loop mode                                                     5.0
 0.75  peak area                                                    (µg/L)
 Trap mode  value
 0.50  1167                                                         TOC 4.0
 Loop mode  0.25                                                     3.0
 (1 m  L )                                                           2.0
 0.00
 3.0  4.0  5.0  6.0  7.0  8.0  9.0  10.0  11.0  9.05  9.10  9.15  9.20  9.25  1.0
                                                  Download
                                                                     0.0
                  Daily Reports (PDF Files)  √ Use a web browser to view instrument   0:09:00  0:39:00  1:09:00  1:39:00  2:09:00  2:39:00  3:09:00  3:39:00  4:09:00  4:39:00  5:09:00  5:39:00  6:09:00  6:39:00  7:09:00  7:39:00  8:09:00  8:39:00  9:09:00  9:39:00  10:09:00  10:39:00  11:09:00  11:39:00  12:09:00  12:39:00  13:09:00  13:39:00  14:09:00  14:39:00  15:09:00  15:39:00  16:09:00  16:39:00  17:09:00  17:39:00  18:09:00  18:39:00  19:09:00  19:39:00  20:09:00  20:39:00
                  These reports summarize daily    data loaded via a company LAN.       Time
 Measurement of Trace Impurities  measurement results as numeric   √ CSV  les can also be obtained.  Ultrapure water with TOC levels of about 5  g/L can be
                  values and trend graphs to
                  improve visibility.                                 measured reliably.
 ● Measurement of Trace Metals in Rinse Water
            Online TOC Analyzer
 Atomic Absorption Spectrophotometer  TOC-4200
 AA-7000 Series
            This analyzer is useful for a wide range of applications within plant operations,
 During semiconductor manufacturing, trace metals attached on   from continuous water monitoring to management of overall plant ef uents.
 wafer surfaces are typically rinsed with ultrapure water or a reagent.  Measurement of Trace Metals in Rinse Water  Abnormalities can be detected quickly using the advantage of a minimum
 The method best suited to measuring such ultra-trace metals in   4-minute measurement frequency.
 ultrapure water is furnace (electrically heated) atomic absorption
 spectrometry.
 The method enables highly sensitive measurements by increasing
 the injection volume.
 An example of measuring Fe with an AA-7000G (furnace model)
 system is shown to the right.
 About 0.02 ppb of Fe can be measured from a 100 µL sample
 injection volume.


 18                                                                                                                  19
   14   15   16   17   18   19   20   21   22   23   24