Ceramic Lids are used primarily with Cerquad packages
that require a glass or B-staged epoxy coated seal.
These lids are used on various multilayer packages where
temperature constraints after die attach require a low
temperature lid seal.
Technology Lids feature:
in a wide variety of shapes, sizes and thickness
temperature epoxy or glass seal
or window options
Combo Lids ™
Combo Lids ™ are a metal alloy combination lid / preform
assembly that offers a true hermetic seal for semiconductor
Technology Combo Lids ™ feature:
quality Kovar or Alloy 42 plated to exceed Mil-G 45204
type III grade A
alignment of lid and preform
and corrosion resistance
Epoxy lids are available with partially cured B staged
polymers on the sealing surface to give a one step sealing
temperature sealing and curing
for automated handling equipment
TO Cans are available in a wide assortment of sizes
designed to work with the transistor outline headers.
Available with weld projections as well as solder seal.
Window Lids (Bulls-Eye Lids)
Bulls-eye lids are glass Kovar lids with a hermetic
glass to metal sealed window designed for E-PROM applications.
enables quick erasure and reprogramming of the semiconductor
to metal seal is hermetic and passes leak test MIL
STD 883, Method 1014
Combo Lid is a Registered Trademark of Williams Advanced
Chelsea Technology, Inc. 300 Willow Street, North
Andover, MA 01845 USA
tel: 978 682-3000 fax: 978 682-2223