H01L2224/846

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
20210225789 · 2021-07-22 ·

To improve reliability of a semiconductor device. There are provided the semiconductor device and a method of manufacturing the same, the semiconductor including a pad electrode that is formed over a semiconductor substrate and includes a first conductive film and a second conductive film formed over the first conductive film, and a plating film that is formed over the second conductive film and used to be coupled to an external connection terminal (TR). The first conductive film and the second conductive film contains mainly aluminum. The crystal surface on the surface of the first conductive film is different from the crystal surface on the surface of the second conductive film.

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
20210225789 · 2021-07-22 ·

To improve reliability of a semiconductor device. There are provided the semiconductor device and a method of manufacturing the same, the semiconductor including a pad electrode that is formed over a semiconductor substrate and includes a first conductive film and a second conductive film formed over the first conductive film, and a plating film that is formed over the second conductive film and used to be coupled to an external connection terminal (TR). The first conductive film and the second conductive film contains mainly aluminum. The crystal surface on the surface of the first conductive film is different from the crystal surface on the surface of the second conductive film.

Multilayer clip structure attached to a chip

Disclosed is technology in that a clip structure formed of an inexpensive and light metallic material to easily performing soldering on a corresponding metal and to reduce costs of a semiconductor package and to reduce the weight of the semiconductor package. The composite clip structure bent at a predetermined angle and being in charge of electrical connection between components in a semiconductor package includes a main metal layer formed of a conductive material with a predetermined thickness, and a lower functional layer formed below the main metal layer and formed of a different type of metal from a metallic component of the main metal layer, wherein the lower functional layer is attached to the main metal layer to be integrated thereinto, and wherein the main metal layer is formed of a single metal containing a largest amount of aluminum (Al) or a metal mixture containing a largest amount of Al.

Multilayer clip structure attached to a chip

Disclosed is technology in that a clip structure formed of an inexpensive and light metallic material to easily performing soldering on a corresponding metal and to reduce costs of a semiconductor package and to reduce the weight of the semiconductor package. The composite clip structure bent at a predetermined angle and being in charge of electrical connection between components in a semiconductor package includes a main metal layer formed of a conductive material with a predetermined thickness, and a lower functional layer formed below the main metal layer and formed of a different type of metal from a metallic component of the main metal layer, wherein the lower functional layer is attached to the main metal layer to be integrated thereinto, and wherein the main metal layer is formed of a single metal containing a largest amount of aluminum (Al) or a metal mixture containing a largest amount of Al.

COMPOSITE CLIP STRUCTURE AND SEMICONDUCTOR PACKAGE USING THE SAME

Disclosed is technology in that a clip structure formed of an inexpensive and light metallic material to easily performing soldering on a corresponding metal and to reduce costs of a semiconductor package and to reduce the weight of the semiconductor package. The composite clip structure bent at a predetermined angle and being in charge of electrical connection between components in a semiconductor package includes a main metal layer formed of a conductive material with a predetermined thickness, and a lower functional layer formed below the main metal layer and formed of a different type of metal from a metallic component of the main metal layer, wherein the lower functional layer is attached to the main metal layer to be integrated thereinto, and wherein the main metal layer is formed of a single metal containing a largest amount of aluminum (Al) or a metal mixture containing a largest amount of Al.

COMPOSITE CLIP STRUCTURE AND SEMICONDUCTOR PACKAGE USING THE SAME

Disclosed is technology in that a clip structure formed of an inexpensive and light metallic material to easily performing soldering on a corresponding metal and to reduce costs of a semiconductor package and to reduce the weight of the semiconductor package. The composite clip structure bent at a predetermined angle and being in charge of electrical connection between components in a semiconductor package includes a main metal layer formed of a conductive material with a predetermined thickness, and a lower functional layer formed below the main metal layer and formed of a different type of metal from a metallic component of the main metal layer, wherein the lower functional layer is attached to the main metal layer to be integrated thereinto, and wherein the main metal layer is formed of a single metal containing a largest amount of aluminum (Al) or a metal mixture containing a largest amount of Al.

SEMICONDUCTOR PACKAGES AND METHODS OF PACKAGING SEMICONDUCTOR DEVICES

An embodiment related to a method for forming a device is disclosed. The method includes providing a package substrate having a first die attach pad (DAP) and a first bond pad, forming a first conductive die-substrate bonding layer on the first DAP, and attaching a first major surface of a first die to the first DAP. The first die includes a first die contact pad on a second major surface of the first die. A first conductive clip-die bonding layer with spacers is formed on the first die contact pad of the first die. A first conductive clip-substrate bonding layer is formed on the first bond pad of the package substrate. The method also includes attaching a first clip bond to the first die and the first bond pad. The first clip bond includes a first horizontal planar portion attached to the first die over the first die contact pad and a second vertical portion attached to the first bond pad.

SEMICONDUCTOR PACKAGES AND METHODS OF PACKAGING SEMICONDUCTOR DEVICES

An embodiment related to a method for forming a device is disclosed. The method includes providing a package substrate having a first die attach pad (DAP) and a first bond pad, forming a first conductive die-substrate bonding layer on the first DAP, and attaching a first major surface of a first die to the first DAP. The first die includes a first die contact pad on a second major surface of the first die. A first conductive clip-die bonding layer with spacers is formed on the first die contact pad of the first die. A first conductive clip-substrate bonding layer is formed on the first bond pad of the package substrate. The method also includes attaching a first clip bond to the first die and the first bond pad. The first clip bond includes a first horizontal planar portion attached to the first die over the first die contact pad and a second vertical portion attached to the first bond pad.

Semiconductor device fabricated by flux-free soldering

A method of fabricating a semiconductor device is disclosed. In one aspect, the method includes placing a first semiconductor chip on a carrier with the first main surface of the first semiconductor chip facing the carrier. A first layer of soft solder material is provided between the first main surface and the carrier. Heat is applied during placing so that a temperature at the first layer of soft solder material is equal to or higher than a melting temperature of the first layer of soft solder material. A second layer of soft solder material is provided between the first contact area and the second main surface. Heat is applied during placing so that a temperature at the second layer of soft solder material is equal to or higher than a melting temperature of the second layer of soft solder material. The first and second layers of soft solder material are cooled to solidify the soft solder materials.

Semiconductor device fabricated by flux-free soldering

A method of fabricating a semiconductor device is disclosed. In one aspect, the method includes placing a first semiconductor chip on a carrier with the first main surface of the first semiconductor chip facing the carrier. A first layer of soft solder material is provided between the first main surface and the carrier. Heat is applied during placing so that a temperature at the first layer of soft solder material is equal to or higher than a melting temperature of the first layer of soft solder material. A second layer of soft solder material is provided between the first contact area and the second main surface. Heat is applied during placing so that a temperature at the second layer of soft solder material is equal to or higher than a melting temperature of the second layer of soft solder material. The first and second layers of soft solder material are cooled to solidify the soft solder materials.