Pads With Extended Contours, E.g., Grid Structure, Branch Structure, Finger Structure (epo) Patents (Class 257/E23.015)
  • Patent number: 7186592
    Abstract: An LDMOS device includes elementary MOS cells. The gate structure of the elementary cell includes a first conductor material finger. The LDMOS device includes first metal stripes for contacting source regions, second metal stripes for contacting drain regions, and third metal stripes placed on inactive zones for contacting a material finger by forming a contact point. The contact point is formed by a first prolongation of the material finger for connecting with one of the third stripes. The third metal stripe includes at least one fourth metal stripe placed on a separation zone. The material finger has a second prolongation and the fourth metal stripe has a first prolongation to form an additional contact point.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: March 6, 2007
    Assignee: STMicroelectronics S.r.l.
    Inventors: Antonino Schillaci, Paola Ponzio
  • Patent number: 7173336
    Abstract: A semiconductor device is provided wherein conductive paths 40, formed of crystal that grows better along the X-Y axis than along the Z axis, are embedded in an insulating resin 44, and the back surface of the conductive path 40 is exposed through the insulating resin 44 and sealed. With this arrangement, fractures of the conductive paths 40 embedded in the insulating resin 44 are suppressed.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: February 6, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Noriaki Sakamoto, Yoshiyuki Kobayashi, Junji Sakamoto, Shigeaki Mashimo, Katsumi Okawa, Eiju Maehara, Kouji Takahashi
  • Patent number: 7166898
    Abstract: In accordance with one embodiment of the invention, a semiconductor device includes conductive pad areas, and each conductive pad area is electrically connected to a plurality of metal traces which are in turn each connected to diffusions. A conductive contact element such as a solder bump or via can be attached to each conductive pad area such that the contact elements are arranged in a repeating pattern having a first pitch. The semiconductor device can also include translation traces, and each translation trace can be electrically connected to two or more of the conductive contact elements. Each translation trace can have a interconnect element attached thereto. The interconnect elements can be arranged in a repeating pattern having a second pitch substantially greater than the first pitch.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: January 23, 2007
    Assignee: Picor Corporation
    Inventor: Michael Briere
  • Patent number: 7164208
    Abstract: There is provided a semiconductor device in which the junction strength of land portions and external terminals is increased, the disconnection of the external terminal is surely prevented, and the connection reliability is ensured over an extended period of time. An insulating resin layer which insulates metal wires from one another is formed on a semiconductor element, an end portion of the metal wire is connected to an electrode on the semiconductor element, the other end portion of the metal wire is connected to an external terminal to form a land, the entire surface of the semiconductor element except the connecting portions of the lands is covered with a surface-layer resin layer, and a projection is provided on the top surface of a land portion of at least one of the lands. Because of this, after their soldering, the external terminal holds the perimeter of the projection on the land portion, so that the external terminal can be surely connected to the land portion.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: January 16, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuyuki Kainou, Masatoshi Yagoh, Kimihito Kuwabara, Katsumi Ohtani
  • Patent number: 7161250
    Abstract: A bumped semiconductor device contact structure is disclosed including at least one non-planar contact pad having a plurality of projections extending therefrom for contacting at least one solder ball of a bumped integrated circuit (IC) device, such as a bumped die and a bumped packaged IC device. The projections are arranged to make electrical contact with the solder balls of a bumped IC device without substantially deforming the solder ball. Accordingly, reflow of solder balls to reform the solder balls is not necessary with the contact pad of the present invention. Such a contact pad may be provided on various testing equipment such as probes and the like and may be used for both temporary and permanent connections. Also disclosed is an improved method of forming the contact pads by etching and deposition.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: January 9, 2007
    Assignee: Micron Technology, Inc.
    Inventors: James M. Wark, Salman Akram
  • Patent number: 7161251
    Abstract: Methods and structures to reduce in semiconductor packages the length of critical electrical connections between bond pads on one or multiple semiconductor chips and wire landing pads on a substrate have been achieved. An electrical connection becomes critical if high current, high speed or radio frequency signals have to be transported. Moving the wire landing pads of critical connections on the substrate closer to the semiconductor chip utilizing unpopulated spaces of an array grid design reduces the length of said wires. This could be a ball grid array (BGA) or any other kind of grid array. Said methods and structures invented are applicable to single-chip modules and to multi-chip modules. The design of the grid array has to be modified to provide free spaces for the wire landing pads of critical electrical connections within the grid array close to the semiconductor chip as required by the design rules. The design change can be done without increasing the number of solder balls or solder pins, etc.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: January 9, 2007
    Assignee: Dialog Semiconductor GmbH
    Inventor: Hans Martin Vonstaudt
  • Publication number: 20060231934
    Abstract: Decrease in parasitic resistance caused by paste for adhering a semiconductor device to a lead frame or by a semiconductor substrate is disclosed. In a semiconductor device having a semiconductor substrate with an electrode formed on a rear surface thereof, an uneven structure is formed on the rear surface of the semiconductor substrate, and the rear surface electrode is formed and is adhered to a lead frame, thereby decreasing parasitic resistance and improving driving capability.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 19, 2006
    Inventor: Tomomitsu Risaki