Multi-chip module with self-populating positive features
AssigneeOracle International Corporation
InventorsHiren D. Thacker, Ashok V. Krishnamoorthy, John E. Cunningham, Chaoqi Zhang
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Abstract
A multi-chip module (MCM) is described. This MCM includes at least two substrates that are mechanically coupled and aligned by positive and negative features on facing surfaces of the substrates. These positive and negative features may mate and self-lock with each other. The positive features may be self-populated into the negative features on at least one of the substrates using a hydrophilic layer in the negative feature. This hydrophilic layer may be used in conjunction with a hydrophobic layer surrounding the negative features on a top surface of at least one of the substrates.
Claims14
A multi-chip module (MCM), comprising:
- a first substrate having a first surface, wherein the first substrate includes:
- first negative features disposed on the first surface, wherein a given first negative feature is recessed below the first surface and has a first opening, defined by a first edge;
- and
- a first layer disposed in the first negative features, wherein the first layer includes a hydrophilic material;
- positive features disposed on the first layer in the first negative features, wherein the positive features protrude above the first surface;
- and
- a second substrate having a second surface facing the first surface, wherein the second substrate includes second negative features disposed on the second surface, wherein a given second negative feature is recessed below the second surface and has a second opening, defined by a second edge;
- wherein the second negative features are coupled to the positive features so that the first substrate is mechanically coupled to the second substrate;
- and
- wherein the first substrate further comprises a second layer disposed in regions of the first surface surrounding the first negative features, wherein the second layer includes a hydrophobic material.
A system, comprising:
- a processor;
- a memory storing a program module configured to be executed by the processor;
- and
- an MCM, wherein the MCM includes:
- a first substrate having a first surface, wherein the first substrate includes:
- first negative features disposed on the first surface, wherein a given first negative feature is recessed below the first surface and has a first opening, defined by a first edge;
- and
- a first layer disposed in the first negative features, wherein the first layer includes a hydrophilic material;
- positive features disposed on the second layer in the first negative features, wherein the positive features protrude above the first surface;
- and
- a second substrate having a second surface facing the first surface, wherein the second substrate includes second negative features disposed on the second surface, wherein a given second negative feature is recessed below the second surface and has a second opening, defined by a second edge;
- and
- wherein the second negative features are coupled to the positive features so that the first substrate is mechanically coupled to the second substrate;
- and
- wherein the first substrate further comprises a second layer disposed in regions of the first surface surrounding the first negative features, wherein the second layer includes a hydrophobic material.
Dependencies are inferred from the claim text.