Specialized Applications in Qualitative and Quantitative Low Molecular Weight Gas Mass Spectrometry of Hermetic Packages
Oneida Research Services, Inc. (ORS) specializes in Internal Vapor Analysis (IVA®) services to quantitatively measure the primary and trace gases inside hermetic components. The gas content inside sealed components, particularly moisture concentration, can cause long term reliability problems such as corrosion, fogging, leakage, current bit errors and lubrication issues. Known to some as Residual Gas Analysis (RGA) testing or “Mil-Std 1018”, the test measures the primary sealing gases and trace gases. It is ideally suited for process development, sealing quality control, studying long term out-gassing of the enclosed materials inside the components, and for product qualification.
Applications include a wide range of industries such as Microelectronics, Large Hermetic Modules, Metals, Ceramics, Telecommunications, Food, Medical Devices, Pharmaceutical, Packaging and Illumination.
IVA® has been a core technology of ORS for almost 40 years. We have Suitability status from the DLA Land and Maritime (DLA) for qualifying military devices according to Mil-Std-883 TM-1018 and Mil-Std-750 TM 1018. For commercial applications, we conduct the test per our Commercial Practice Test Method MEL-1053. Our DLA Suitability status is intended for the qualification of military devices and we are prohibited from changing any test parameters described within the method. However, there are many instances where the test parameters used for military applications is inappropriate for commercial product or process development studies (e.g. sample test temperature and sample pre-bake requirements).
Our Commercial Practice Test Method MEL-1053 exceeds the instrument and calibration requirements of the Military Standards. The ORS commercial practice test method represents best practices for R&D and process monitoring applications.
Both systems were designed and manufactured by ORS. Please view our IVA® & Leak Test Equipment web page for more information on acquiring this technology for use in your facility.
In parallel with Internal Vapor Analysis, ORS offers additional analytical techniques for the Qualification and process development of polymers, epoxies, coatings, and adhesives used in passive or active components. Outgassing of solvents, extenders, or reaction by-products and their deposition on critical surfaces can be a reliability concern. Residual outgassing products can be monitored and quantified by the following methods: Internal Vapor Analysis, Static headspace analysis by GC/MS, and ampoule analysis.
MEL-1018: Internal Water Vapor Content – DLA Suitability for Military Devices
This test procedure is used exclusively for testing hermetic devices in accordance with Mil-Std-883 or 750, method 1018, procedure 1 per the conditions of “Suitability” status granted by DLA Land and Maritime (DLA). No variations are permitted to this procedure or to the device test conditions. Furthermore, all tests performed per this procedure are subject to inclusion in the annual retention report to DLA and all records regarding these tests are subject to audit and inspection by the U.S. Government.
MEL-1053: Internal Vapor Analysis – Commercial Practice
This test procedure is used for testing hermetic devices in accordance with ORS’ Commercial Practice for Internal Vapor Analysis. This test method extends the scope and capabilities of traditional Mil-Std-883 or 750, method 1018 analysis. It permits variations to the procedure and/or device test conditions to achieve the best test conditions for specific client applications. Client specific protocols may be established for maximum accuracy and sensitivity for product monitoring applications, process development, R&D, materials evaluations and failure analysis projects. The data is not subject to inclusion in the annual retention report to DLA and all records regarding these tests are confidential.
MEL-1070: Gas Cylinder Analysis of Sealing Chamber Atmospheres
This test method quantitatively measures the process sealing gases sampled from sealing chambers and/or gas supply lines using a specially prepared sampling cylinder. Sampling procedures are described in the instructions provided with the sampling cylinders. Contact ORS for availability and rental of sampling cylinders.
MEL-1080: Identification of UNKNOWN volatile and semi-volatile organic compounds by IVA®/GC/MS
This test method is used to identify unknown organic compounds that may be detected by IVA® test methods but may not be conclusively identified due to the complexity or trace quantity of the mass spectra. Standard hermetic devices, gas cylinders or individual materials sealed in glass ampules may be analyzed. The technique is useful to understand the trace contaminants, chemical processes of material outgassing and chemical reactions from environmental stress for:
Vials Containing Bulk Material in a Dry Nitrogen Atmosphere
Voids and Blisters in Processed Metals,
Ceramics and Plastics
Syringes Containing Extracted Gases
Mylar Bags and Other Hermetic Packaging
Epoxies, polymers, coatings, and adhesives
The Test Conditions
Variable Test Temperature
Adjustable AMU Scan Range and Speed
Variable Data Acquisition Time
Flexibility in Sample Puncture Location
IVA® and HR-IVA®Test Capabilities
A versatile set of test capabilities allows us to accommodate a wide variety of samples. This versatility alone makes Gas Analysis a unique problem-solving tool in any environment. ORS test capabilities include :
The ability to test samples with an internal volume of 1nl (1X10-6cc) and up
An accuracy of less than ±5%
A sensitivity of 10 ppmv or better
An applied Atomic Mass Unit (AMU) range of 1 to 512
Access to a Mass Spectrometer Data Base with over 140,000 spectra available to assist in the identification of unknown compounds
Flexibility in sample holding temperature during analysis
Flexibility in test protocol
The Format of IVA®Results
Spectra Report (AMU vs. Intensity)
ID of Unknowns through the NIST Mass Spectrometry Database
Tentatively Identified Compounds (TIC) Summary page using NIST’11 Mass Spectral Database (>243,000 spectra)
Estimated Concentrations and Chemical Abstract Services (CAS) #’s
Chromatograms and overlays of Chromatograms and Control samples highlighting areas of interest
Individual peak mass spectra available
Customized report formats available. Call to discuss options.
Gas Analysis Services Customized to Fit Your Needs
Our experienced technical and sales staff will be happy to discuss your specific application in detail with you and recommend a test plan that will fit your individual needs. To submit samples for gas analysis, simply print out our IVA® Sample Submission Form, enter in the appropriate information and mail the samples and submission form to ORS.