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MICRO:Extreme Silicon Part 1, by Larry W. Shive (Feb 99)
with purity levels of <1 ppb without significantly contaminating the sample, and high-frequency manual sampling of baths is very labor intensive. A key assumption behind all of. MICRO:Extreme Silicon Part 1, by Larry W. Shive (Feb 99
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Product Technology News
manual or motorized stages, and the system complies with SEMI S2-93. TOC Analyzer Anatel Boulder, CO The A-2000 wide-range TOC analyzer is designed for on-line monitoring of semiconductor feedwater and reclaim/ reuse applications. The instrument measures TOC from 4 ppb to 1000 ppm and can
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MICRO:July/August 98:Product Technology News
continuously monitors TOC on-line in pure and ultrapure water. The instrument requires no acids, gases, or other reagents for maintenance. The system measures TOC based on the differential resistivity/conductivity method. Measurement range is 0 500 ppb at resistivity >1 M -cm and 0 2000 ppb at resistivity
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MICRO: Critical Materials
hours until their initial moisture level dropped below 1 ppb. To prevent compromising their sensitive electronic circuitry, the MFCs were not baked to remove hydrocarbon contaminants. The units were challenged with 200 ppb of moisture and equilibrated for 20 minutes. Drydown was monitored
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MICRO: Green Manufacturing
ppb, 32 ppb, and 0.6 ppm for AsH3, PH3, and hydrogen fluoride (HF), respectively. The monitor's output signal was logged into a computer to enable continuous monitoring of each scrubber's effluent stream. In some instances, the FTIR spectrometer was also used to analyze the scrubber exhaust
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MICRO:Extreme Silicon by Peng Sun, p.41 (April '99)
wafer can be performed to check the removal efficiency of the first extraction, and single-side extractions are possible by replacing the double-side extraction box shown in the figure with a single-side extraction box. Figure 2: Electropherograms for anion analysis of a 10-ppb standard solution (top
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MICRO: Semicon West Technical Program (June 2002)
the information benefits semiconductor production. Detection of Trace Impurities in Bulk Inert Gases Workshop. Marriott Hotel. Chair: Suhas Ketkar, Air Products and Chemicals. This workshop focuses on new advances in detection of trace (<1 ppb) impurities in bulk inert gases. Recent advances in analytical
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MICRO: Green and Clean - Brown (March 2000)
were determined using an inductively coupled plasma atomic emission spectrometer (ICP-AES) with a periodic-table scan of 32 trace-metal contaminants. The limit of detection for the ICP-AES is 0.01 ppb for all 32 trace-metals. One phenomenon revealed by the sampling was that there was an extended