How do I design a hermetic seal test procedure for an RF module package?

Designing a hermetic seal test procedure for an RF module package verifies that the package maintains an airtight seal to protect the internal components (MMIC die, wire bonds, passive components) from moisture, contaminants, and atmospheric gases that would degrade performance and reliability over the product's lifetime. The hermetic seal tests per MIL-STD-883 Test Method 1014: fine leak test (detects small leaks with rates of 10^-8 to 10^-5 atm-cc/sec of helium; procedure: the package is placed in a helium pressurization chamber (bombing chamber) at 2-5 atm of helium for 2-24 hours (the helium permeates into the package through any minute leaks); the package is then placed in a helium leak detector (mass spectrometer); the detector measures the helium escaping from the package; acceptance: the measured leak rate must be below the specified maximum for the package volume; for packages less than 0.05 cc: max leak rate = 5 × 10^-8 atm-cc/sec; for packages 0.05-0.5 cc: max = 1 × 10^-7; for packages greater than 0.5 cc: max = 1 × 10^-6), and gross leak test (detects large leaks that the fine leak test cannot catch because the helium escapes too quickly to be detected; procedure: fluorocarbon (FC-72 or FC-43) immersion: the package is immersed in a low-boiling-point fluorocarbon liquid at 125°C; if the package has a gross leak: the fluorocarbon enters the package; the package is then transferred to a high-boiling-point fluorocarbon at 125°C; the trapped low-boiling-point liquid inside the package vaporizes and visible bubbles escape; dye penetrant method (alternative): the package is immersed in a fluorescent dye. After removal and cleaning: the package is inspected under UV light for dye penetration through leaks; weight gain method (alternative): weigh the package, pressurize in fluorocarbon, reweigh; weight gain indicates a leak).