CHIP PACKAGE HAVING A PROTECTION PIECE COMPLIANTLY ATTACHED ON A CHIP SENSING SURFACE
First Claim
1. A chip package comprising:
- a substrate;
a main chip disposed on the substrate, wherein the main chip has a chip sensing surface and a connecting terminal electrically connected to the substrate;
an adhesive protective piece compliantly attached to the chip sensing surface of the main chip with a constant adhesive gap, the adhesive protective piece having a pick-and-place sheet and a first die-bonding layer, the pick-and-place sheet having an internal surface and an external surface, the first die-bonding layer being disposed between the main chip and the pick-and-place sheet, wherein the external surface of the pick-and-place sheet being parallel to the chip sensing surface is independent from a leveling of the substrate; and
an encapsulant formed on the substrate to encapsulate the main chip, wherein the encapsulant has an encapsulated height corresponding to the substrate greater than the thickness of the main chip but less than a cover height of the external surface of the pick-and-place sheet corresponding to the substrate, wherein the encapsulant encapsulates at least one side of the first die-bonding layer and the external surface of the pick-and-place sheet is exposed from the encapsulant.
1 Assignment
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Accused Products
Abstract
Disclose is a chip package having an adhesive protection piece compliantly attached on the chip sensing surface, comprising a substrate, a main chip disposed on the substrate, an adhesive protection piece covering the main chip and an encapsulant encapsulating the main chip. The main chip has a chip sensing surface facing to a direction away from the substrate and a connection terminal electrically connected to the substrate. The adhesive protection piece essentially consists of a pick-and-place sheet and a die-bonding layer. The encapsulant completely encapsulates the die-bonding layer without covering the external surface of the pick-and-place sheet. The adhesive protection piece is compliantly attached to the chip sensing surface by pick-and-place processes so that the die-bonding layer is attached to the chip sensing surface with a constant adhesive gap. Moreover, the external surface of the pick-and-place sheet is parallel to the chip sensing surface which is not affected by the horizontal deviation of the substrate to resolve the sensing distortion issue when a sensing chip is covered by an adhesive protection piece.
20 Citations
20 Claims
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1. A chip package comprising:
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a substrate; a main chip disposed on the substrate, wherein the main chip has a chip sensing surface and a connecting terminal electrically connected to the substrate; an adhesive protective piece compliantly attached to the chip sensing surface of the main chip with a constant adhesive gap, the adhesive protective piece having a pick-and-place sheet and a first die-bonding layer, the pick-and-place sheet having an internal surface and an external surface, the first die-bonding layer being disposed between the main chip and the pick-and-place sheet, wherein the external surface of the pick-and-place sheet being parallel to the chip sensing surface is independent from a leveling of the substrate; and an encapsulant formed on the substrate to encapsulate the main chip, wherein the encapsulant has an encapsulated height corresponding to the substrate greater than the thickness of the main chip but less than a cover height of the external surface of the pick-and-place sheet corresponding to the substrate, wherein the encapsulant encapsulates at least one side of the first die-bonding layer and the external surface of the pick-and-place sheet is exposed from the encapsulant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A chip package comprising:
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a substrate; a main chip disposed on the substrate, the main chip having a chip sensing surface and a connecting terminal electrically connected to the substrate; an adhesive protective piece disposed on the chip sensing surface of the main chip, the adhesive protective piece having a pick-and-place sheet and a first die-bonding layer disposed between the main chip and the pick-and-place sheet, the pick-and-place sheet having an internal surface and an external surface, wherein the external surface of the pick-and-place sheet being parallel to the chip sensing surface is independent from a leveling of the substrate; and an encapsulant formed on the substrate configured to encapsulate the main chip and at least one side of the first die-bonding layer, wherein the encapsulant has an encapsulated height corresponding to the substrate greater than a height of the main chip corresponding to the substrate but less than a height of the external surface of the pick-and-place sheet corresponding to the substrate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification