Chip-like electronic components, a method of manufacturing the same, a pseudo wafer therefor and a method of manufacturing thereof
First Claim
1. A chip-like electronic component having at least its electrodes formed exclusively on one surface thereof, and surfaces other than said one surface are continuously covered with a protective material.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of manufacturing the semiconductor chips comprises the steps of: pasting on a substrate an adhesive sheet having a property to retain its adhesive strength prior to a processing, then lose its adhesive strength after the processing; fixing a plurality of non-defective bare chips on this adhesive sheet, with their Al electrode pad surfaces facing down; coating a resin on a whole area other than the Al electrode pad surfaces of the plurality of non-defective bare chips including interspaces therebetween; applying a predetermined process to the adhesive sheet to weaken its adhesive strength of the adhesive sheet; peeling off a pseudo wafer bonding non-defective bare chips; and dicing the plurality of non-defective bare chips into a discrete non-defective electronic part by cutting the pseudo wafer at a position of the resin between respective non-defective bare chips.
67 Citations
20 Claims
- 1. A chip-like electronic component having at least its electrodes formed exclusively on one surface thereof, and surfaces other than said one surface are continuously covered with a protective material.
- 6. A pseudo wafer comprising a plurality and/or a plurality of different types of chip-like electronic components having at least their electrodes formed solely on one surface thereof, wherein interspaces between said plurality and/or said plurality of different types of chip-like electronic components and bottom surfaces thereof are continuously covered with said protective material, and bonded with each other.
-
10. A method of manufacturing a chip-like electronic component, comprising the steps of:
-
pasting an adhesive material on a substrate, said adhesive material having a property to retain an adhesive strength prior to a processing and to lose said adhesive strength after said processing;
fixing a plurality and/or a plurality of different types of semiconductor chips on said adhesive material with an electrode surface thereof facing down;
coating a whole area including said plurality and/or said plurality of different types of semiconductor chips and interspaces therebetween with a protective material;
applying a predetermined process to said adhesive material to weaken said adhesive strength of said adhesive material so as to peel off a pseudo wafer which bonds said plurality and/or said plurality of different types of semiconductor chips as covered with said protective material; and
dicing said plurality and/or said plurality of different types of semiconductor chips by cutting said protective material in said interspaces therebetween thereby obtaining a discrete semiconductor chip or a chip-like electronic component. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A method of manufacturing a pseudo wafer comprising the steps of:
-
pasting an adhesive material on a substrate, said material having a property to retain an adhesive strength prior to a processing and lose said adhesive strength after said processing;
fixing on said adhesive material a plurality and/or a plurality of different types of semiconductor chips with their electrode surfaces facing down;
coating with a protective material a whole area of said plurality and/or said plurality of different types of semiconductor chips including interspaces therebetween;
applying a predetermined process to said adhesive material so as to lose its adhesive strength; and
peeling off a pseudo wafer having said plurality and/or said plurality of different types of semiconductor chips fixed thereon. - View Dependent Claims (17, 18, 19, 20)
-
Specification