Weba. For a typical lead frame package, testing applies to the die attach and mold compound. b. For a typical ball grid array (BGA) package testing applies to the die attach, mold compound and substrate when used. c. Testing by suppliers providing TI defined “Green” materials must pass the 1000ppm maximum threshold requirements. 3. WebThe mold is designed so that the metal leads or a BGA bottom circuit is not encapsulated. But everything else, including the IC, is covered with the liquefied mix. Heat causes the encapsulant to polymerize, the mold is then opened, and the part removed. A post bake may be required to achieve full properties and some post processing may be used.
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Molded Interconnect Substrate (MIS) - Semiconductor Engineering
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