Metallic cover of miniaturization module
View Patent ↗A metallic cover of a miniaturization module includes a substrate, a SMD chip unit and a metallic cover, the metallic cover embracing the SMD chip unit and having at least one sizing hole and a plurality of venting holes, the venting holes being disposed around the sizing hole, and the sizing hole and the venting holes being positioned above the SMD chip unit so that glue portions fill up slits between the metallic cover and the SMD chip unit. The venting holes stop the glue portion from running over the second chip unit. The glue-filled slits between the top lid and the SMD chip unit provides a strong support to prevent any deformation of the metallic cover when the metallic cover is tested and processed.
1. A miniaturization chip module, comprising:
a substrate;
at least one surface-mount device (SMD chip unit having a peripheral edge and mounted on said substrate;
a metallic cover having a top lid and a plurality of side sheets extending at a periphery of said top lid towards said substrate, said metallic cover being positioned with said top lid thereof above said at least one SMD chip unit and with lower edges of said plurality of side sheets secured to said substrate in surrounding relationship with said at least one SMD chip unit, wherein said top lid has at least one sizing hole and a plurality of venting holes formed thereat, the venting holes being disposed around the sizing hole, wherein the sizing hole and the venting holes are positioned above the SMD chip unit, and wherein a glue receiving gap is formed between a portion of said top lid having said sizing hole and said plurality of venting holes and a top surface of said at least one SMD chip unit; and
a glue, said glue filling said glue receiving gap between said top lid of said metallic cover and said top surface of said at least one SMD chip unit, said plurality of venting holes preventing said glue from escaping beyond said peripheral edge of said at least one SMD chip unit.
2. The miniaturization chip module of claim 1 , wherein the metallic cover further has an opening defined between two of the side sheets, and wherein the sizing hole and the venting holes are formed through the top lid.
3. The miniaturization chip module of claim 1 , wherein said lower edges of said side sheets of the metallic cover are welded to the substrate.
4. The miniaturization chip module of claim 1 , wherein the metallic cover above the SMD chip unit has a recess, the sizing hole being located at a center of the recess and the venting holes being positioned along an inner edge of the recess.
5. The miniaturization chip module of claim 4 , wherein the recess has an area smaller than the SMD chip unit.
6. The miniaturization chip module of claim 1 , wherein the sizing hole aligns with a center of the SMD chip unit and the venting holes are located within an area corresponding to the SMD chip unit.
7. The miniaturization chip module of claim 1 , wherein the glue includes epoxy.