Cover for an optical device and method for making same
AssigneeAmerasia International Technology, Inc.
InventorKevin Kwong-Tai Chung
Life of this patent
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Abstract
An optical device is enclosed within a package or module having an optically transmissive or transparent cover that is sealed with an adhesive preform that has been pre-applied onto the bonding areas of the cover. The adhesive preforms are formed of a wet adhesive deposited on a sheet of optically transmissive or transparent material as a preform in predetermined locations and are B-staged or dried to form dry solid adhesive preforms. The preforms may be continuous or have one or more small gaps therein. The sheet of optical material is diced or singulated to produce individual optical covers having an adhesive preform thereon.
Claims34
A method for making optical covers having an adhesive preform thereon comprising:
- providing an optical substrate;
- depositing a pattern of adhesive including a plurality of cover bonding patterns on the optical substrate;
- and
- singulating the optical substrate into a plurality of optical covers each of which has one of the cover bonding patterns of adhesive attached thereto.
A method for making an optical cover having an adhesive preform thereon comprising:
- providing sheet of an optical substrate material that is one of optically transmissive and optically transparent;
- depositing a pattern of adhesive including a plurality of cover bonding patterns on the sheet of optical substrate material;
- drying or B-staging the deposited pattern of adhesive;
- and
- singulating from the sheet of optical substrate material at least one optical cover which has one of the cover bonding patterns of adhesive attached thereto.
Dependencies are inferred from the claim text.