PCB adapter for IC chip failure analysis
First Claim
1. A chip failure analysis assembly for mounting and performing failure analysis of an integrated circuit die having a plurality of leads, said failure analysis assembly comprising:
- a printed circuit board;
a location or position on top of said printed circuit board for mounting said semiconductor die that is to be analyzed, a die that is to be analyzed being mounted on the surface of a printed circuit board with a backside of the die in a plane of the surface of the printed circuit board, the die that is to be analyzed being mounted on a glass surface where the glass surface is inserted in a cut out provided in the printed circuit board;
a clamping arrangement for said printed circuit board;
an electrical interface of said clamping arrangement with electrical power supplies or electrical stimulus or electrical response analysis apparatus;
a means for distributing electrical signals from said clamping arrangement to said location of said die to be examined;
contact points between said clamping arrangement and said means for distributing electrical signals; and
a means for establishing electrical connections between said means for distributing electrical signals and said die to be analyzed, said means comprising jumper wires.
1 Assignment
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Accused Products
Abstract
An arrangement that allows convenient and cost effective mounting of semiconductor die during the process of semiconductor failure analysis. The die that is analyzed can be biased and electrical stimuli and stimuli response signals can be provided to and extracted form the die. The arrangement of the present invention imposes no restriction on the type and size of die that can be analyzed and does not require equipment modification costs other than the cost of the subject mounting arrangement. The die to be analyzed is to be mounted with the die backside facing the die-mounting platform, an optional opening in the die-mounting platform allows backside analysis of the die. A method for complete, reliable and quick analysis of integrated circuit chips.
20 Citations
39 Claims
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1. A chip failure analysis assembly for mounting and performing failure analysis of an integrated circuit die having a plurality of leads, said failure analysis assembly comprising:
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a printed circuit board;
a location or position on top of said printed circuit board for mounting said semiconductor die that is to be analyzed, a die that is to be analyzed being mounted on the surface of a printed circuit board with a backside of the die in a plane of the surface of the printed circuit board, the die that is to be analyzed being mounted on a glass surface where the glass surface is inserted in a cut out provided in the printed circuit board;
a clamping arrangement for said printed circuit board;
an electrical interface of said clamping arrangement with electrical power supplies or electrical stimulus or electrical response analysis apparatus;
a means for distributing electrical signals from said clamping arrangement to said location of said die to be examined;
contact points between said clamping arrangement and said means for distributing electrical signals; and
a means for establishing electrical connections between said means for distributing electrical signals and said die to be analyzed, said means comprising jumper wires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A chip failure analysis assembly for mounting and performing failure analysis of an integrated circuit die having a plurality of leads, said failure analysis assembly comprising:
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a printed circuit board;
a location or position on top of said printed circuit board for mounting the semiconductor die that is to be analyzed;
an opening within said circuit board which is aligned with and directly below said location or position on top of said printed circuit board for mounting the semiconductor die to be analyzed for back side analysis of said die, a die that is to be analyzed being mounted on a surface of the printed circuit board with a backside of the die in a plane of the surface of the printed circuit board, the die that is to be analyzed being mounted on a glass surface where the glass surface is inserted in the opening provided in the printed circuit board;
a clamping arrangement for said printed circuit board;
an electrical interface of said clamping arrangement with electrical power supplies or electrical stimulus or electrical response analysis apparatus;
a means for distributing electrical signals from said clamping arrangement to the die to be analyzed;
contact points between said clamping arrangement and said means for distributing electrical signals; and
a means for establishing electrical connections between said means for distributing electrical signals and said die to be analyzed, said means comprising jumper wires. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for performing semiconductor chip failure analysis, comprising:
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providing a failure analysis assembly, said failure analysis assembly comprising a printed circuit board, further comprising a location or position on top of said printed circuit board for mounting said semiconductor die that is to be analyzed, further comprising a clamping arrangement for said printed circuit board, further comprising an electrical interface of said clamping arrangement with electrical power supplies or electrical stimulus or electrical response analysis apparatus, further comprising a means for distributing electrical signals from said clamping arrangement to said location of said die to be examined, further comprising contact points between said clamping arrangement and said means for distributing electrical signals and further comprising bond wires for establishing electrical connections between said means for distributing electrical signals and said die to be analyzed;
mounting a die that is to be analyzed on the surface of the printed circuit board with a backside of the die in a plane of the surface of the printed circuit board, the die being mounted on a glass surface, the glass surface being inserted in an opening provided in the printed circuit board;
providing electrical stimulus signals to said semiconductor chip; and
performing said semiconductor chip failure analysis. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification