Microelectronic package and method for a compression-based mid-level interconnect
First Claim
1. A method of comprising:
- providing a first substrate comprising first level interconnects having a first pitch at a first surface thereof and a set of first contact pads having a second pitch at a second surface thereof;
providing a second substrate comprising a first surface comprising a set of second contact pads having the second pitch;
aligning a mid-level interconnect between the first and second substrates;
compressing the first and second substrates to actuate opposing arms of the mid-level interconnect to engage each respective surface of the corresponding first and second contact pads of the first and second substrates to form a substrate assembly; and
attaching a die to the substrate assembly.
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Abstract
A microelectronic package includes first substrate (120) having first surface area (125) and second substrate (130) having second surface area (135). The first substrate includes first set of interconnects (126) having first pitch (127) at first surface (121) and second set of interconnects (128) having second pitch (129) at second surface (222). The second substrate is coupled to the first substrate using the second set of interconnects and includes third set of interconnects (236) having third pitch (237) and internal electrically conductive layers (233, 234) connected to each other with microvia (240). The first pitch is smaller than the second pitch, the second pitch is smaller than the third pitch, and the first surface area is smaller than the second surface area.
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Citations
20 Claims
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1. A method of comprising:
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providing a first substrate comprising first level interconnects having a first pitch at a first surface thereof and a set of first contact pads having a second pitch at a second surface thereof; providing a second substrate comprising a first surface comprising a set of second contact pads having the second pitch; aligning a mid-level interconnect between the first and second substrates; compressing the first and second substrates to actuate opposing arms of the mid-level interconnect to engage each respective surface of the corresponding first and second contact pads of the first and second substrates to form a substrate assembly; and attaching a die to the substrate assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of comprising:
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providing a first substrate comprising first level interconnects having a first pitch at a first surface thereof and a set of first contact pads having a second pitch at a second surface thereof; providing a second substrate comprising a first surface comprising a set of second contact pads having the second pitch; aligning a mid-level interconnect between the first and second substrates; compressing the first and second substrates to actuate opposing arms of the mid-level interconnect to engage each respective surface of the corresponding first and second contact pads of the first and second substrates to form a substrate assembly; and coupling a die to the first substrate using the first level interconnects. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification