A method of separating a support substrate and a wafer adhered to the support substrate includes inserting a trigger member into a space between the support substrate and the wafer. The space opens on a gap region of the support substrate. The gap region is within an outer periphery of a base member of the support substrate. The base member has an adhesive layer contacting the wafer. The adhesive layer does not extend to an edge of the base member facing the gap region at the space. The wafer and the base member are contacted by the trigger member which promotes separation of the wafer and the support substrate from each other.

A semiconductor device includes a semiconductor substrate, a circuit structure and a ring-shaped protrusion. The semiconductor substrate has a front surface and a rear surface opposed to each other. The circuit structure is located on the front surface. The ring-shaped protrusion is protruded on the rear surface.

Implementations of image sensor packages may include an image sensor chip, a first layer including an opening therethrough coupled to a first side of the image sensor chip, and a optically transmissive cover coupled to the first layer. The optically transmissive cover, the first layer, and the image sensor chip may form a cavity within the image sensor. The image sensor package may also include at least one electrical contact coupled to a second side of the image sensor chip opposing the first side and an encapsulant coating an entirety of the sidewalls of the image sensor package.

Implementations of image sensor packages may include an image sensor chip, a first layer including an opening therethrough coupled to a first side of the image sensor chip, and a optically transmissive cover coupled to the first layer. The optically transmissive cover, the first layer, and the image sensor chip may form a cavity within the image sensor. The image sensor package may also include at least one electrical contact coupled to a second side of the image sensor chip opposing the first side and an encapsulant coating an entirety of the sidewalls of the image sensor package.

Disclosed is a method for producing an electronic component, the method including: disposing a plurality of electronic components on an adhesive layer of a composite substrate including a support, a temporary fixing material layer, and the adhesive layer with a connection part in contact with the adhesive layer interposed between the adhesive layer and the electronic components; fixing the plurality of electronic components to the composite substrate by curing the adhesive layer; forming a sealing layer sealing the electronic components; obtaining a sealed structure by peeling off the temporary fixing material layer from the adhesive layer; and a forming a circuit surface by grinding the sealed structure from the adhesive layer side. The plurality of electronic components include an IC chip and a chip-type passive component. The passive component is disposed on the adhesive layer by a method including in the following order: disposing a conductor precursor for pattern formation as the connection part on the adhesive layer; placing the passive component on the conductor precursor; and forming a conductive pattern as the connection part by heating the conductor precursor.

A chip packaging method includes: providing plural chip units; providing a base material, and placing the chip units on the base material; providing an adhesive layer to adhere a metal foil to the chip unit, wherein the metal foil is a part of the base material or additional to the base material; and cutting the chip units on the base material to form plural separated chip package units, wherein each of the chip package units includes a cut metal foil part.

The present disclosure provides an adhesive composition for a dicing film, a dicing film, and a dicing die-bonding film, which have excellent pickup performance.

A wafer transfer method for forming a second work unit by transferring a wafer of a first work unit including a first ring frame, a first adhesive tape, and the wafer to a second adhesive tape includes sandwiching a claw body between the first ring frame and a second ring frame, affixing the second adhesive tape to a surface of the wafer which surface is not affixed to the first adhesive tape, holding the wafer by the second ring frame via the second adhesive tape, and peeling off the first adhesive tape from the wafer.

The disclosure provides a mass transfer method and device for micro light emitting diode chips. The method includes the following steps: performing magnetic pole electroplating on the micro light emitting diode chips obtained by peeling off the sapphire substrate to enable corresponding magnetic poles to be generated at corresponding positions of the micro light emitting diode chips; peeling off the transfer substrate, and placing the micro light emitting diode chips obtained by peeling off the transfer substrate in a dispersion liquid to form a solution in which micro light emitting diode chips are dispersed; and the display substrate picks up the micro light emitting diode chips dispersed under the action of the magnetic field force.

A barrier film is formed on a resin layer so as to include a missing part where a portion of the barrier film is missing in a central end region of the resin layer.