Micro-Jet Cooling Array – MJCA is a high-density field of small diameter impinging jets that produce extraordinarily high single-phase heat transfer coefficients. MJCA has a small form factor, with a total thickness of a few millimeters necessary for many electrical devices and easy integration into board and device designs. It is also compatible with a wide range of fluids and gases including water, air, helium, and PAO. Finally MJCA can impinge on any target material surface (BeO, ceramic and other non-machinable materials are easy to integrate) or directly on the device needed to be cooled.
Benefits:
Uniform heat transfer.
Small form factor.
Compatible with a range of coolants.
Can impingement directly on chip eliminating thermal interface material.
MJCA uses impingement cooling, which is well-known to provide the highest single-phase heat transfer coefficients. Mezzo’s design is based on an array of micro-jets, fabricated with a micro-processing method (patent pending) that replicates the high heat transfer coefficients of an individual micro-jet over a large area. As the jet diameter is reduced, the heat transfer coefficient increases. This is the primary motivation for using small-diameter impinging jets (200-300 microns). Typically a negative side-effect of using a large density of small-diameter impinging jets is jet-jet interaction. To avoid this problem, Mezzo’s MJCA incorporates localized exhaust ports for each individual jet.
