Aluminized Moisture Barrier Bag (ANMBB)

ANMBB is the new technology for barrier materials, which reduces material cost. Aluminum is vapor-deposited onto polyester film or nylon film.

This cost effective bag comparing to AMBB is suitable for medium to short term dry-packaging users.

Moisture Barrier Bag (MBB)

It is essential to keep Surface-Mount Devices (SMDs) dry from manufacturing point to the time of reflow soldering. Moisture Barrier Bag, also known as Vapor Barrier Bag, is made by multiple layers of plastic and aluminum that control moisture vapor leakage.

Basically, there are 3 kinds of Moisture Barrier Bags (MBBs), Tyvek MBB, AMBB and ANMBB, in the market. The key factor of moisture barrier function of the bag is a metal layer, like thickness of the foil layer, foil or metalized, etc., but thickness or material of other layers will partially affect the quality of MBB as well.