JEDEC JESD22-A109B-2011 PDF

Full title and description

St JEDEC JESD22-A109B-2011 — JEDEC Standard JESD22‑A109B:2011, "Hermeticity". This revision (A109B, Nov 2011) establishes standardized procedures for determining the effectiveness of seals on hermetically sealed solid‑state devices (typically ceramic and metal packages) and clarifies applicability versus non‑hermetic molded devices.

Abstract

This test method defines methods and acceptance criteria used to assess hermetic seals of solid‑state device packages. It describes required test apparatus, specimen preparation, test procedures and reporting needed to detect gross and fine leaks and to document seal integrity for hermetic packages used in commercial and military applications.

General information

• Status: Current / Active (A109B:2011; referenced as current in JEDEC catalogues and standards distributors).
• Publication date: November 1, 2011 (JESD22‑A109B).
• Publisher: JEDEC Solid State Technology Association.
• ICS / categories: Electronics — Semiconductors / JEDEC JESD22 test methods (ICS: 31.x — electronics / semiconductor device test methods).
• Edition / version: Revision A109B (revision of JESD22‑A109A).
• Number of pages: 8 pages (typical published PDF length reported by standards distributors).

Scope

The standard applies to hermetic package constructions (for example, ceramic and metal packages) and provides standardized procedures to determine seal integrity. It is not intended for non‑hermetic molded packages. The methods are intended for use in qualification, procurement, and failure analysis where hermetic seal performance is required.

Key topics and requirements

• Definitions of hermeticity and when hermeticity testing is applicable.
• Specified test methods for detecting gross leaks and fine leaks (procedural steps, sample handling, and required apparatus).
• Requirements for specimen preparation, conditioning and test environment.
• Acceptance criteria and reporting requirements for hermetic seal integrity.
• Guidance on selecting appropriate test methods for package types and intended end use (including references to military test methods where applicable).

Typical use and users

Used by semiconductor package designers, device manufacturers, reliability and quality engineers, test laboratories, and procurement teams to qualify and verify hermetic sealing of packaged devices for commercial, industrial and military applications.

Related standards

Commonly used alongside other JESD22 test methods (for environmental, humidity and bias testing such as JESD22‑A101 / A110 / A113 / A118) and, for some applications, with military hermeticity tests (for example MIL‑STD‑750 and MIL‑STD‑883 test methods for seal/leak). It is also referenced by device qualification documents such as JESD47.

Keywords

Hermeticity; hermetic seal; leak test; fine leak; gross leak; helium mass spectrometer leak detection; package qualification; JESD22; JEDEC A109B.

FAQ

Q: What is this standard?

A: JEDEC JESD22‑A109B:2011 is a JEDEC test method titled "Hermeticity" that specifies procedures to evaluate the seal integrity of hermetically sealed solid‑state device packages.

Q: What does it cover?

A: It covers test procedures, apparatus, specimen preparation, and reporting/acceptance criteria used to detect gross and fine leaks in hermetic packages and to document seal effectiveness for qualification and procurement purposes.

Q: Who typically uses it?

A: Semiconductor and package manufacturers, reliability and quality engineers, independent test labs, and procurement/qualification teams use this standard when hermetic sealing is a product requirement.

Q: Is it current or superseded?

A: The A109B revision (2011) is the recognized revision; the document is listed as current/active in standards catalogues and has been reaffirmed in subsequent distributor listings (references show A109B:2011 and a JEDEC catalog entry indicating current status). Users should check JEDEC or authorized distributors for any later revisions or reaffirmations.

Q: Is it part of a series?

A: Yes — it is part of the JESD22 series of JEDEC environmental and reliability test methods for solid‑state devices and is often used together with other JESD22 procedures and JESD47 qualification guidance.

Q: What are the key keywords?

A: Hermeticity; leak detection; fine leak; gross leak; helium mass spectrometer; package qualification; JESD22; JEDEC.