H01L2224/75611

LID ATTACH PROCESS AND DISPENSER HEAD

A lid attach process includes dipping a periphery of a lid in a dipping tank of adhesive material such that the adhesive material attaches to the periphery of the lid. The lid attach process further includes positioning the lid over a die attached to a substrate using a lid carrier, wherein the periphery of the lid is aligned with a periphery of the lid carrier. The lid attach process further includes attaching the lid to the substrate with the adhesive material forming an interface with the substrate. The lid attach process further includes contacting a thermal interface material (TIM) on the die with the lid.

Systems and methods for improved delamination characteristics in a semiconductor package

Systems and methods are provided for producing an integrated circuit package, e.g., an SOIC package, having reduced or eliminated lead delamination caused by epoxy outgassing resulting from the die attach process in which an integrated circuit die is attached to a lead frame by an epoxy. The epoxy outgassing may be reduced by heating the epoxy during or otherwise in association with the die attach process, e.g. using a heating device provided at the die attach unit. Heating the epoxy may achieve additional cross-linking in the epoxy reaction, which may thereby reduce outgassing from the epoxy, which may in turn reduce or eliminate subsequent lead delamination. A heating device located at or near the die attach site may be used to heat the epoxy to a temperature of 55 C.5 C. during or otherwise in association with the die attach process.

Laser bonding apparatus for three-dimensional molded sculptures
10748773 · 2020-08-18 · ·

Disclosed are a laser bonding apparatus and a laser bonding method capable of bonding an electronic component to a three-dimensional structure having a regular or irregular shape in a curved portion such as an automobile tail lamp or a headlamp. The laser bonding apparatus and method for a three-dimensional structure may prevent misalignment and poor bonding of the electronic component with respect to the three-dimensional structure.

HEATING OF A SUBSTRATE FOR EPOXY DEPOSITION
20200227281 · 2020-07-16 ·

A semiconductor die is bonded using epoxy onto a substrate supported on a heating platform. After preheating the substrate with the heating platform to a temperature of between 25 C. and 60 C., an epoxy dispenser deposits an epoxy dot onto the substrate before the semiconductor die is placed onto the epoxy dot with a pick head to thereby bond the semiconductor die onto the substrate.

METHODS AND APPARATUS FOR MANUFACTURING A PLURALITY OF ELECTRONIC CIRCUITS
20200214143 · 2020-07-02 ·

The present invention relates to a method and apparatus for manufacturing a plurality of electronic circuits, each electronic circuit comprising a respective flexible first portion, comprising a respective group of contact pads (contacts), and a respective flexible integrated circuit, IC, comprising a respective group of terminals and mounted on the respective group of contact pads with each terminal in electrical contact with a respective contact pad, the method comprising:

providing (e.g. manufacturing) a flexible first structure comprising the plurality of first portions;

providing (e.g. manufacturing) a second structure comprising the plurality of flexible ICs and a common support arranged to support the plurality of flexible ICs;

dispensing an adhesive onto the first structure and/or onto the flexible ICs;

transferring said flexible ICs from the common support onto the flexible first structure such that each group of terminals is mounted on (brought into electrical contact with) a respective group of contact pads to form an electronic circuit,

providing a heated surface and an opposing surface together having a gap therebetween,

transferring the flexible first structure, comprising the electronic circuits, between the heated surface and the opposing surface such that the adhesive is cured by application of heat and pressure from the heated surface and the opposing surface thereby adhering the IC onto the respective first portion.

DIE BONDER INCORPORATING ROTATABLE ADHESIVE DISPENSER HEAD
20200203305 · 2020-06-25 ·

An adhesive dispenser for a die bonding apparatus has an adhesive dispenser head configured to dispense adhesive onto bonding pads of a substrate, and a head conveyer configured to convey the adhesive dispenser head along orthogonal first and second axes for dispensing the adhesive onto target dispensing positions on the bonding pads. The head conveyor includes a first linear positioning motor operative to convey the adhesive dispenser head along the first axis and a rotary positioning motor coupled to the first linear positioning motor which is operative to rotate the adhesive dispenser head. The rotary positioning motor is configured to cooperate with the first linear positioning motor to convey the adhesive dispenser head along the second axis to the target dispensing positions.

Lid attach processes for semiconductor packages

A lid attach process includes providing a substrate and a die attached to the substrate, providing a lid and dipping a periphery of the lid in a dipping tank of adhesive material such that the adhesive material attaches to the periphery of the lid, and positioning the lid over the die and placing the lid on a top of the substrate with the adhesive material being adapted to interface with a periphery of the substrate.

METHOD OF MOUNTING CONDUCTIVE BALL
20200144220 · 2020-05-07 · ·

Provided is a method of mounting a conductive ball, and more particularly, a method of mounting a conductive ball, whereby defects during a process of mounting a conductive ball on a substrate by using a mounting hole formed in a mask may be prevented, and a conductive ball having a small size may also be effectively mounted on the substrate. According to the method of mounting a conductive ball, a process of mounting a conductive ball may be performed by preventing deformation of a mask, thus achieving a high quality of the process without omitting any conductive balls.

Electronic-component mounting apparatus
10568245 · 2020-02-18 · ·

Provided is a flip chip mounting apparatus for mounting chips (400) to a substrate (200), and the apparatus includes at least one sectionalized mounting stage (45) divided into a heating section (452) and a non-heating section (456), the heating section being for heating a substrate (200) fixed to a front surface of the heating section, the non-heating section not heating the substrate (200) suctioned to a front surface of the non-heating section. With this, it is possible to provide an electronic-component mounting apparatus that is simple and capable of efficiently mounting a large number of electronic components.

SYSTEM AND METHOD FOR DEPOSITING UNDERFILL MATERIAL

A method of dispensing an underfill material on a semiconductor device package. A substrate having a semiconductor chip electrically connected thereto and offset from the substrate by solder joints is provided. The semiconductor chip has a footprint defined by a length and width of the semiconductor chip. Standoff heights between the substrate and the semiconductor chip are calculated and used to determine a volume of underfill material needed to substantially fill a space between the substrate and the semiconductor chip. The determined volume of underfill material is dispensed on the substrate such that the space between the substrate and the semiconductor chip is substantially filled by the underfill material. The method may allow for improved dispensing an underfill material to substantially fill the space between the substrate and semiconductor chip when variations in standoff height are present.