Abstract:
Processing defects arising during processing of a semiconductor wafer prior to back-grinding are reduced with systems and methods of sensor placement. One or more holes are bored into a chuck table for receiving semiconductor wafers, or a support table next to the chuck table. One or more sensors are disposed in the holes for monitoring parameters during a pre-back-grinding (PBG) process. A control box converts a set of signals received from the sensors. A computer-implemented process control tool receives the converted set of signals from the control box and determines whether the PBG process will continue.
Abstract:
A fine pitch package-on-package (PoP), and a method of forming, are provided. The PoP may be formed by placing connections, e.g., solder balls, on a first substrate having a semiconductor die attached thereto. A first reflow process is performed to elongate the solder balls. Thereafter, a second substrate having another semiconductor die attached thereto is connected to the solder balls. A second reflow process is performed to form an hourglass connection.
Abstract:
The present invention provides a safety helmet inner lining adjustable for suitable wearing, consisting of: a covering body, which has an inner side surface that contacts a user's head and an outer side surface relative to the inner side surface; at least one interlayer pocket, which is disposed on the outer side surface of the covering body; and at least one cushiony pad, which is suitable for placement inside the interlayer pocket. A user is able to place the cushiony pads of suitable thickness into the interlayer pockets at preset positions according to the user's to head shape and dimensions. The inner lining is then put onto the head and a safety helmet put on top. The cushiony pads enable correcting the interspace between the user's head and the safety helmet, thereby allowing suitable and perfect fitting of the safety helmet that ensures safety of the wearer.
Abstract:
A method includes vacuum annealing on a substrate having at least one solder bump to reduce voids at an interface of the at least one solder bump. A die is mounted over the substrate.
Abstract:
A system and method for packaging semiconductor dies is provided. An embodiment comprises a first package with a first contact and a second contact. A post-contact material is formed on the first contact in order to adjust the height of a joint between the contact pad a conductive bump. In another embodiment a conductive pillar is utilized to control the height of the joint between the contact pad and external connections.
Abstract:
A method includes placing a first package component over a vacuum boat, wherein the vacuum boat comprises a hole, and wherein the first package component covers the hole. A second package component is placed over the first package component, wherein solder regions are disposed between the first and the second package components. The hole is vacuumed, wherein the first package component is pressed by a pressure against the vacuum boat, and wherein the pressure is generated by a vacuum in the hole. When the vacuum in the hole is maintained, the solder regions are reflowed to bond the second package component to the first package component.
Abstract:
A semiconductor device having a polymer layer and a method of fabricating the same is provided. A two-step plasma treatment for a surface of the polymer layer includes a first plasma process to roughen the surface of the polymer layer and loosen contaminants, and a second plasma process to make the polymer layer smoother or make the polymer layer less rough. An etch process may be used between the first plasma process and the second plasma process to remove the contaminants loosened by the first plasma process. In an embodiment, the polymer layer exhibits a surface roughness between about 1% and about 8% as measured by Atomic Force Microscopy (AFM) with the index of surface area difference percentage (SADP) and/or has surface contaminants of less than about 1% of Ti, less than about 1% of F, less than about 1.5% Sn, and less than about 0.4% of Pb.
Abstract:
A car poster has a display device and a remote controller. The display device has a monitor that displays different contents according to different objectives. The remote controller transmits control signals to remotely control the monitor to change the display contents. A basic circuit of the display device has a controller, a memory, a receiver, a monitor, a connection port and a first power source. The controller is a control and operation center. The memory is used to previously stores multiple display contents and also is coupled to the controller. The receiver is coupled to the controller for receiving control signals from the remote controller.