Special receptacle or package – Holder for a removable electrical component – Bar or tapelike carrier for plural components
Patent
1998-11-02
2000-05-30
Patterson, M. D.
Special receptacle or package
Holder for a removable electrical component
Bar or tapelike carrier for plural components
2064591, B65D 8500
Patent
active
060681292
ABSTRACT:
An indicator based on the present invention for indicating the adhesion status between a substrate and the encapsulation layer of a packaged electronic device is characterized in that at least one indicating pattern and one indicating region surrounding the indicating pattern are formed on the substrate, the adhesion between the indicating pattern and the encapsulant is very good while that between the indicating region and the encapsulant is relatively poor, both the indicating pattern and the indicating region are covered by molding encapsulant which is stripped off when having become hardening, thereby the status of the indicating pattern appearing after stripping off the encapsulant can indicate the adhesion quality (integration quality) between the encapsulation layer and the substrate. The indicator realizes a non-destructive quality checking process in which each electronic device can be checked to achieve one hundred percent of quality control.
REFERENCES:
patent: 5287962 (1994-02-01), Nomi et al.
patent: 5727684 (1998-03-01), Webb et al.
patent: 5896990 (1999-04-01), Barzana
Bui Luan K.
Caesar Technology Inc.
Patterson M. D.
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