초록 ▼

A fragile device, such as an integrated circuit chip or a multichip assembly, is packaged by first dispensing a sol surrounding the sides of the device. The sol is laterally confined by means of a rim member typically made of a pre-molded plastic material. The amount of the sol dispensed is not suff

A fragile device, such as an integrated circuit chip or a multichip assembly, is packaged by first dispensing a sol surrounding the sides of the device. The sol is laterally confined by means of a rim member typically made of a pre-molded plastic material. The amount of the sol dispensed is not sufficient to run over the top of the rim member. The sol is then heated to form a gel. If desired, a cover member can be put into place onto the top surface of the rim member, for the purpose of additional mechanical protection of the fragile device, for example.

대표청구항 ▼

[ What is claimed is:] [1.] A method of packaging a fragile semiconductor device on a circuit board, including the steps of:(a) providing said circuit board with a plurality of support islands for supporting said device at a predetermined vertical stand-off distance from said circuit board;(b) dispo

[ What is claimed is:] [1.] A method of packaging a fragile semiconductor device on a circuit board, including the steps of:(a) providing said circuit board with a plurality of support islands for supporting said device at a predetermined vertical stand-off distance from said circuit board;(b) disposing said device on a plurality of said islands and adhering said device to only one of said islands;(c) providing a mask layer of insulating polymer on said circuit board peripherally around said device;(d) placing a rim member into position on said plating mask layer surrounding the fragile device, the fragile device having an external side surface, the rim member having an internal side surface and a top surface, and the rim member comprising pre-molded plastic material; said rim member compliantly bonded to said plating mask layer;(e) dispensing an amount of sol medium within the internal side surface of the rim member, the amount of sol being sufficient to coat at least a portion of the external side surface but not sufficient to run over the top surface of the rim member;heating the sol to a temperature sufficient to convert the sol into a gel medium; andplacing a cover member overlying the rim member.