Patent classifications
H01L21/67092
Method and apparatus of processor wafer bonding for wafer-scale integrated supercomputer
A method and apparatus for bonding a processor wafer with a microchannel wafer/glass manifold to form a bonded wafer structure are provided. A glass fixture is also provided for protecting C4 solder bumps on chips disposed on the processor wafer. When the glass fixture is positioned on the processor wafer, posts extending from the glass fixture contact corresponding regions on the processor wafer devoid of C4 solder bumps, so that the glass fixture protects the C4 solder bumps during wafer bonding. The method involves positioning the processor wafer/glass fixture and the microchannel wafer/glass manifold in a metal fixture having one or more alignment structures adapted to engage corresponding alignment elements formed in the processor wafer, glass fixture and/or glass manifold. The metal fixture secures the wafer components in place and, after melting solder pellets disposed between the processor wafer/glass fixture and microchannel wafer/glass manifold, a bonded wafer structure is formed.
Processing method of device wafer
A processing method of a device wafer includes a mask coating step of coating a front surface of the device wafer with a water-soluble resin, a mask forming step of applying a laser beam along each division line, forming a groove, and removing a protective mask and a functional layer to expose a substrate, a plasma etching step of forming a division groove that divides the substrate along the groove by supplying a gas in a plasma condition, an expanding step of expanding a protective tape in a plane direction to expand a width of the division groove, an adhesive film dividing step of applying a laser beam along the division groove to divide the adhesive film that has been exposed due to the formation of the division groove, and a cleaning step of cleaning and removing the water-soluble resin.
METHOD OF PROCESSING WAFER
A method of processing a wafer having a plurality of devices provided in respective areas demarcated on a face side of the wafer by a plurality of projected dicing lines. The method includes coating the face side with a protective film agent and thereafter drying the protective film agent into a protective film covering the face side, applying a laser beam having a wavelength absorbable by the wafer to the wafer along the projected dicing lines on the face side, thereby producing a plurality of laser-processed slots in the wafer, cleaning away the protective film, applying ultraviolet rays to the face side to remove an organic substance deriving from the protective film and remaining on the face side, and covering coverage areas corresponding to the respective devices on the face side with an encapsulating resin.
Wafer processing method
A processing method for a wafer having a chamfered portion at a peripheral edge includes a holding step of holding the wafer by a holding table, and a chamfer removing step of rotating the holding table while causing a first cutting blade to cut into the peripheral edge of the wafer while supplying a cutting liquid from a first cutting liquid supply nozzle to cut the peripheral edge of the wafer. In the chamfer removing step, a second cutting unit is positioned at a position adjacent to the first cutting unit at such a height that a second cutting blade does not make contact with the wafer and on the side of the center of the wafer as compared to the first cutting unit, and the cutting liquid is supplied from a second cutting liquid supply nozzle.
WAFER DICING USING FEMTOSECOND-BASED LASER AND PLASMA ETCH
Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. A method includes forming a mask above the semiconductor wafer, the mask including a layer covering and protecting the integrated circuits. The mask and a portion of the semiconductor wafer are patterned with a laser scribing process to provide a patterned mask and to form trenches partially into but not through the semiconductor wafer between the integrated circuits. Each of the trenches has a width. The semiconductor wafer is plasma etched through the trenches to form corresponding trench extensions and to singulate the integrated circuits. Each of the corresponding trench extensions has the width.
DEVICE AND METHOD FOR THE ALIGNMENT OF SUBSTRATES
The invention relates to a device and a method for the alignment of substrates.
BONDING SYSTEM
A first transfer device and a second transfer device are configured to transfer a first substrate and a second substrate in a normal pressure atmosphere. A third transfer device is configured to transfer the first substrate and the second substrate in a decompressed atmosphere. A load lock chamber has accommodation sections allowed to accommodate therein the first substrate and the second substrate, and is allowed to switch an inside of the accommodation sections between the normal pressure atmosphere and the decompressed atmosphere. Multiple gates are respectively disposed on three different sides of the load lock chamber, and allowed to open or close the load lock chamber. The first transfer device, the second transfer device, and the third transfer device carry the first substrate and the second substrate into/out of the load lock chamber through different gates among the multiple gates.
SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD
A substrate processing apparatus configured to process a combined substrate in which a first substrate and a second substrate are bonded to each other includes a holding member configured to hold the combined substrate; a removing member configured to separate at least a peripheral portion of the first substrate from the second substrate by being inserted between the first substrate and the second substrate; an elevating mechanism configured to adjust a relative height position of the removing member with respect to the holding member; and a controller configured to control an operation of the elevating mechanism. The controller controls the operation of the elevating mechanism such that the relative height position of the removing member with respect to a target insertion position of the removing member is adjusted in an entire circumference of the combined substrate.
CUTTING METHOD FOR CUTTING PROCESSING-TARGET OBJECT AND CUTTING APPARATUS THAT CUTS PROCESSING-TARGET OBJECT
There is provided a cutting method for cutting a processing-target object by a cutting blade. The cutting method includes a holding step of holding the processing-target object by a holding table and a cutting step of cutting the processing-target object by the cutting blade by causing the cutting blade that rotates to cut into the processing-target object held by the holding table and causing the holding table and the cutting blade to relatively move after the holding step is carried out. In the cutting step, cutting is carried out with detection of whether or not a crack in the processing-target object exists by a crack detecting unit disposed on the rear side relative to the cutting blade in a cutting progression direction in which cutting processing of the processing-target object by the cutting blade progresses.
BONDING APPARATUS AND BONDING METHOD
A bonding apparatus for bonding a second object to a first object, includes a first holder configured to hold the first object, a second holder configured to hold the second object, a positioning mechanism configured to change a relative position between the first holder and the second holder concerning a first direction and a second direction, a first camera configured to capture the first object, a second camera configured to capture the second object, a support configured to support the second holder and the first camera, and a controller configured to control the positioning mechanism concerning the first direction and the second direction based on an output of the first camera and an output of the second camera such that the second object is positioned to a bonding target portion of the first object.