Semiconductor package and rework process for the same
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsChen-Hua Yu, An-Jhih Su, Shing-Chao Chen, Ching-Hua Hsieh, Chung-Shi Liu, Der-Chyang Yeh, Ming-Da Cheng
Life of this patent
Estimating the term…
Abstract
An embodiment is a method including bonding a first package to a first set of conductive pads of a second package with a first set of solder joints, testing the first package for defects, heating the first set of solder joints by directing a laser beam at a surface of the first package based on testing the first package for defects, after the first set of solder joints are heated, removing the first package, and bonding a third package to the first set of conductive pads of the second package.
Claims21
A method comprising:
- bonding a first package to a first set of conductive pads of a second package with a first set of solder joints;
- testing the first package for defects;
- heating the first set of solder joints by directing a laser beam at a surface of the first package based on testing the first package for defects;
- after the first set of solder joints are heated, removing the first package;
- and
- bonding a third package to the first set of conductive pads of the second package.
A method comprising:
- directing a laser beam at a first semiconductor package to melt solder joints, the solder joints bonding first contact pads of the first semiconductor package to second contact pads of a second semiconductor package;
- removing the first semiconductor package using a first bond head;
- and
- bonding a replacement semiconductor package to the second contact pads.
-20. (canceled)
A method comprising:
- forming a first package comprising:
- forming an electrical connector over a carrier substrate;
- attaching a first die to the carrier substrate, the electrical connector extending from a second side of the first die to a first side of the first die, the second side being opposite the first side, the electrical connector being adjacent the first die;
- encapsulating the first die and the electrical connector with a molding compound;
- forming an interconnect structure proximate the first side of the first die and the molding compound;
- forming a first set of conductive connectors on the interconnect structure;
- bonding a second package to the interconnect structure with a first set of solder joints;
- testing the second package for defects;
- heating the first set of solder joints and the second package by directing a laser beam at a surface of the second package based on testing the second package for defects;
- removing the heated second package based on testing the second package for defects;
- if the second package is removed, bonding a third package to interconnect structure;
- and
- removing the first package from the carrier substrate.
Dependencies are inferred from the claim text.