摘要:
Provided is a method for packaging a low-k chip, comprising: attaching onto a carrier wafer a layer of temporary strippable film; arranging inversely a chip (2-1) onto the carrier wafer via the temporary strippable film; attaching thin film layer I (2-4) onto the carrier wafer for packaging; bonding a support wafer (2-5) onto the thin film layer I (2-4) and solidifying; forming a reconstructed wafer consisting of the chip (2-1), thin film layer I (2-4), and the support wafer; detaching the reconstructed wafer from the carrier wafer; completing a rewired metal wiring (2-6) on thin film layer I (2-4); forming a metal column (2-7) at an end of the rewired metal wiring (2-6); attaching thin film layer II (2-8) onto a surface of the metal column (2-7), packaging, and solidifying; coating a metal layer (2-9) on the top of the metal column (2-7), forming BGA solder balls (2-10) on the metal layer (2-9) by means of printing or ball planting; and finally slicing into individual BGA packages the reconstructed wafer having formed the BGA solder balls (2-10).
摘要:
Provided is a method for packaging a low-k chip, comprising: attaching onto a carrier wafer a layer of temporary strippable film; arranging inversely a chip (2-1) onto the carrier wafer via the temporary strippable film; attaching thin film layer I (2-4) onto the carrier wafer for packaging; bonding a support wafer (2-5) onto the thin film layer I (2-4) and solidifying; forming a reconstructed wafer consisting of the chip (2-1), thin film layer I (2-4), and the support wafer; detaching the reconstructed wafer from the carrier wafer; completing a rewired metal wiring (2-6) on thin film layer I (2-4); forming a metal column (2-7) at an end of the rewired metal wiring (2-6); attaching thin film layer II (2-8) onto a surface of the metal column (2-7), packaging, and solidifying; coating a metal layer (2-9) on the top of the metal column (2-7), forming BGA solder balls (2-10) on the metal layer (2-9) by means of printing or ball planting; and finally slicing into individual BGA packages the reconstructed wafer having formed the BGA solder balls (2-10).
摘要:
A low-k chip packaging structure comprising chip body I (2-1), a chip electrode (2-2), and a chip surface passivation layer (2-3). Chip body I (2-1) has coated thereon thin film layer I (2-3). Thin film layer I (2-3) has arranged on a rear face thereof a support wafer (2-5). A chip electrode (2-2) is transferred to thin film layer I (2-4) around the exterior of the chip via a rewired metal wiring (2-6). The rewired metal wiring (2-6) has arranged at an end thereof a metal column (2-7). The metal column (2-7) has coated thereon thin film layer II (2-8). The top of the metal column protrudes thin film layer II (2-8). The protruding top of the metal column (2-7) has arranged thereon a metal layer (2-9). The metal layer (2-9) has arranged thereon soldering balls (2-10). The low-k chip packaging structure solves the problem of invalid low-k chip due to concentration of stress during chip packaging process and allows for reduced packaging costs and great product reliability.
摘要:
The invention provides drug compositions with synergistic effects, which includes alcohol-soluble and water-insoluble liquorices extracts and at least one kind of anti-tumor or glucose-and-lipid-lowering drug/eatable substance, and can be used to treat tumor or lower blood glucose and lipid. Besides, the invention also provides pharmaceutical preparation, pharmaceutical application, therapeutic and preparation methods, etc. related to this drug compositon.
摘要:
Disclosed are an application management method and device, applied to a first device connected to a second device. The method includes mapping at least one application in the second device, to obtain at least one corresponding application identifier; detecting a first operation; when the first operation satisfies a first preset condition, determining an application identifier of a first application according to the at least one application identifier; detecting a second operation; when the second operation satisfies a second preset condition, obtaining a corresponding application management command according to the second operation; and sending the application management command to the second device, so that the second device manages the first application according to the application management command.
摘要:
Methods for producing biliverdin in a microorganism, methods for producing biliverdin from a non-animal source, cells for producing biliverdin and methods for producing cells for producing biliverdin are disclosed.
摘要:
An embodiment of the present disclosure provides an array substrate, and the array substrate including: at least a data line and at least a gate line; and a plurality of pixel units defined by the data line and the gate line. Each of the plurality of pixel units includes a thin film transistor, a first electrode and a second electrode, and the first electrode and the second electrode overlap each other and are insulated from each other and the second electrode is positioned above the first electrode. An alignment film is formed on a surface of the array substrate, a direction of the second electrode and one side of the array substrate form a predetermined angle and a rubbing direction of the alignment film is parallel to the one side of the array substrate.
摘要:
According to one embodiment of the present invention, a method of constructing network communication for a grid of node groups is provided, the grid including an M dimensional grid, each node group including N nodes, wherein M is greater than or equal to one and N is greater than one, wherein each node includes a router. The method includes directly connecting each node in each node group to every other node in the node group via intra-group links and directly connecting each node in each node group of the M dimensional grid to a node in each neighboring node group in the M dimensional grid via inter-group links.
摘要:
A diode model and conductive-probe measurements taken at the wafer lever are used to predict the characterization parameters of a semiconductor device manufactured from the wafer. A current-voltage curve (I-V) model that expresses a current-voltage relationship as a function of resistance, ideality factor, and reverse saturation current is fitted to a number of conductive-probe measurement data. The current-voltage curve (I-Vd) for the device is then estimated by subtracting from the (I-V) model the product of current times the resistance produced by fitting the (I-V) model.
摘要:
Methods for producing biliverdin in a microorganism, methods for producing biliverdin from a non-animal source, cells for producing biliverdin and methods for producing cells for producing biliverdin are disclosed.