Method of making electronic package assembly with protective encapsulant material
AssigneeInternational Business Machines Corporation
InventorsJames Vernon Ellerson, Richard Joseph Noreika, Jack Arthur Varcoe
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AssigneeInternational Business Machines Corporation
InventorsJames Vernon Ellerson, Richard Joseph Noreika, Jack Arthur Varcoe
Estimating the term…
An electronic package assembly wherein a low profile package is soldered to an organic (e.g., epoxy resin) substrate (e.g., printed circuit board). The assembly's projecting conductive leads are soldered. An encapsulant material (e.g., polymer resin) is used to provide reinforcement for the solder-lead connections, the encapsulant material being dispensed only along opposing sides of the package's housing which do not include projecting leads (and which are oriented substantially normal to the stresses imposed on the package during operation wherein high temperatures are attained). This dispensing may follow solder reflow and solidification. The invention is particularly useful with thin, small outline package (TSOP) structures which occupy a minimum of height on the substrate surface.
A method of making an electronic package assembly, said method comprising:
Dependencies are inferred from the claim text.