A semiconductor package including a first semiconductor chip having a first thickness, a second semiconductor chip on the first semiconductor chip and having a second thickness, the second thickness being smaller than the first thickness, a third semiconductor chip on the second semiconductor chip and having a third thickness, the third thickness being smaller than the second thickness, a fourth semiconductor chip on the third semiconductor chip and having a fourth thickness, the fourth thickness being greater than the third thickness, and a fifth semiconductor chip disposed on the fourth semiconductor chip and having a fifth thickness, the fifth thickness being greater than the fourth thickness may be provided.

A semiconductor package including a first semiconductor chip having a first thickness, a second semiconductor chip on the first semiconductor chip and having a second thickness, the second thickness being smaller than the first thickness, a third semiconductor chip on the second semiconductor chip and having a third thickness, the third thickness being smaller than the second thickness, a fourth semiconductor chip on the third semiconductor chip and having a fourth thickness, the fourth thickness being greater than the third thickness, and a fifth semiconductor chip disposed on the fourth semiconductor chip and having a fifth thickness, the fifth thickness being greater than the fourth thickness may be provided.

A semiconductor package including a semiconductor chip having a chip pad thereon; a first insulating layer; a redistribution line pattern on the first insulating layer; a redistribution via pattern through the first insulating layer to connect the chip pad to the redistribution line pattern; a second insulating layer covering the redistribution line pattern and including a first part having a first thickness and a second part having a second thickness. the second part being inward relative to the first part; a first conductive pillar through the first part and connected to the redistribution line pattern; a second conductive pillar through the second part and connected to the redistribution line pattern; a first connection pad on the first conductive pillar; a second connection pad on the second conductive pillar; a first connection terminal contacting the first connection pad; and a second connection terminal contacting the second connection pad.

A semiconductor package including a semiconductor chip having a chip pad thereon; a first insulating layer; a redistribution line pattern on the first insulating layer; a redistribution via pattern through the first insulating layer to connect the chip pad to the redistribution line pattern; a second insulating layer covering the redistribution line pattern and including a first part having a first thickness and a second part having a second thickness. the second part being inward relative to the first part; a first conductive pillar through the first part and connected to the redistribution line pattern; a second conductive pillar through the second part and connected to the redistribution line pattern; a first connection pad on the first conductive pillar; a second connection pad on the second conductive pillar; a first connection terminal contacting the first connection pad; and a second connection terminal contacting the second connection pad.

A semiconductor package including a first semiconductor chip having a first thickness, a second semiconductor chip on the first semiconductor chip and having a second thickness, the second thickness being smaller than the first thickness, a third semiconductor chip on the second semiconductor chip and having a third thickness, the third thickness being smaller than the second thickness, a fourth semiconductor chip on the third semiconductor chip and having a fourth thickness, the fourth thickness being greater than the third thickness, and a fifth semiconductor chip disposed on the fourth semiconductor chip and having a fifth thickness, the fifth thickness being greater than the fourth thickness may be provided.

A semiconductor package including a first semiconductor chip having a first thickness, a second semiconductor chip on the first semiconductor chip and having a second thickness, the second thickness being smaller than the first thickness, a third semiconductor chip on the second semiconductor chip and having a third thickness, the third thickness being smaller than the second thickness, a fourth semiconductor chip on the third semiconductor chip and having a fourth thickness, the fourth thickness being greater than the third thickness, and a fifth semiconductor chip disposed on the fourth semiconductor chip and having a fifth thickness, the fifth thickness being greater than the fourth thickness may be provided.

First and second contacts are formed on first and second wafers from disparate first and second conductive materials, at least one of which is subject to surface oxidation when exposed to air. A layer of oxide-inhibiting material is disposed over a bonding surface of the first contact and the first and second wafers are positioned relative to one another such that a bonding surface of the second contact is in physical contact with the layer of oxide-inhibiting material. Thereafter, the first and second contacts and the layer of oxide-inhibiting material are heated to a temperature that renders the first and second contacts and the layer of oxide-inhibiting material to liquid phases such that at least the first and second contacts alloy into a eutectic bond.

First and second contacts are formed on first and second wafers from disparate first and second conductive materials, at least one of which is subject to surface oxidation when exposed to air. A layer of oxide-inhibiting material is disposed over a bonding surface of the first contact and the first and second wafers are positioned relative to one another such that a bonding surface of the second contact is in physical contact with the layer of oxide-inhibiting material. Thereafter, the first and second contacts and the layer of oxide-inhibiting material are heated to a temperature that renders the first and second contacts and the layer of oxide-inhibiting material to liquid phases such that at least the first and second contacts alloy into a eutectic bond.

Semiconductor devices and electronics packaging methods include integrated circuit chips having redundant signal bond pads along with signal bond pads connected to the same signal port for non-destructive testing of the integrated circuit chips prior to packaging. Electrical testing is made via the redundant signal bond after which qualified integrated circuit chips can be attached to a pristine and bumped final interposer or printed circuit board to provide increased reliability to the assembled electronic package.

Semiconductor devices and electronics packaging methods include integrated circuit chips having redundant signal bond pads along with signal bond pads connected to the same signal port for non-destructive testing of the integrated circuit chips prior to packaging. Electrical testing is made via the redundant signal bond after which qualified integrated circuit chips can be attached to a pristine and bumped final interposer or printed circuit board to provide increased reliability to the assembled electronic package.