The ceramic surface-mount packages are seam-sealed for hermeticity
and mechanical integrity.
In the oil and gas industry, it is common to use the corrosion rate average to predict the vessel's remaining life; however, the greater corrosion rates are the real threat to the pipes' and vessels' hermeticity
. For that reason, using the percentiles 80 or 90 sounds more reasonable for the estimation of real exchangers than the average, which is close in value to the percentile 50.
Following from the SET-plan priorities, it is proposed to improve the VVER safety-efficiency balance by means of ensuring the hermeticity
of fuel element (FE) claddings based on the creep energy theory method (CET-method) [5, 6], in order to minimize the radioactive leakage through fuel claddings into the VVER circuit, for normal operation conditions including variable loading modes.
To ensure sufficient hermeticity
for the purpose of the initial experiments with the device, the printed circuit board was coated with a conformal coating.
Whether producing primary packaging for food, non-food or liquids, or secondary/tertiary packaging to collate and protect goods during transportation, the industry in the Middle East region and globally demands excellent pack hermeticity
, abuse resistance, and aesthetics to ensure maximum protection for the contents, enhanced shelf-life and appeal and a positive consumer experience.
RCFA-1 frequently includes nondestructive evaluation: X-ray radiography; ultrasound, infrared (IR), ultraviolet (UV), hermeticity
; simple software variations; and sometimes additional samples, etc.
In aerospace applications, adhesives are a non-starter because they lose hermeticity
bonding capacity over time, especially when subjected to high heat and cold and rapid pressure changes.
TESTING OF MEMS AND MICROELECTRONIC PACKAGES (9781608075270, $139.00) considers the step change in package requirements that came with the new MEMS system, and provides engineers with a solid reference on test methods for hermetic packaging for the MEMS and microelectronics as a whole.
Scottish electrical engineer Costello and Desmulliez (sensors, signals, and systems; Heriot-Watt U., Scotland) explain hermeticity
test methods and their application to electronic components that have packages with low-volume cavities.
Particularly, the water resistance and hermeticity
of polyisoprene with high 3,4-unit content can compare with butyl rubber [8-11].