Semiconductor substrate die sawing singulation systems and methods

    公开(公告)号:US10957597B2

    公开(公告)日:2021-03-23

    申请号:US16867836

    申请日:2020-05-06

    发明人: Michael J. Seddon

    IPC分类号: H01L21/78 H01L21/04

    摘要: Implementations of methods of cutting a semiconductor substrate may include aligning a first saw blade substantially perpendicularly with a crystal plane of a non-cubic crystalline lattice of a semiconductor substrate coupled with a backmetal layer and cutting through at least a majority of the semiconductor substrate at an angle substantially perpendicular with the crystal plane of the non-cubic crystalline lattice of the semiconductor substrate. The method may also include aligning a second saw blade substantially perpendicularly with the semiconductor substrate and cutting entirely through the semiconductor substrate and the backmetal layer using the second saw blade.

    Methods of aligning a semiconductor wafer for singulation

    公开(公告)号:US10825731B2

    公开(公告)日:2020-11-03

    申请号:US16506004

    申请日:2019-07-09

    摘要: Implementations of a method for aligning a semiconductor wafer for singulation may include: providing a semiconductor wafer having a first side and a second side. The first side of the wafer may include a plurality of die and the plurality of die may be separated by streets. The semiconductor wafer may include an edge ring around a perimeter of the wafer on the second side of the wafer. The wafer may also include a metal layer on the second side of the wafer. The metal layer may substantially cover the edge ring. The method may include grinding the edge ring to create an edge exclusion area and aligning the semiconductor wafer with a saw using a camera positioned in the edge exclusion area on the second side of the wafer. Aligning the wafer may include using three or more alignment features included in the edge exclusion area.

    Wafer thinning systems and related methods

    公开(公告)号:US10685863B2

    公开(公告)日:2020-06-16

    申请号:US15964464

    申请日:2018-04-27

    发明人: Michael J. Seddon

    IPC分类号: H01L21/683 B24B7/22 H01L25/00

    摘要: Implementations of systems for thinning a semiconductor substrate may include: a substrate chuck configured to receive a semiconductor substrate for thinning, a spindle, a grinding wheel coupled to the spindle, and a water medium configured to be in contact with the semiconductor substrate during thinning. An ultrasonic energy source may be directly coupled to the substrate chuck, the spindle, the grinding wheel, the water medium, or any combination thereof.

    Semiconductor substrate die sawing singulation systems and methods

    公开(公告)号:US10679898B2

    公开(公告)日:2020-06-09

    申请号:US16674780

    申请日:2019-11-05

    发明人: Michael J. Seddon

    IPC分类号: H01L21/78 H01L21/04

    摘要: Implementations of methods of cutting a semiconductor substrate may include aligning a first saw blade substantially perpendicularly with a crystal plane of a non-cubic crystalline lattice of a semiconductor substrate coupled with a backmetal layer and cutting through at least a majority of the semiconductor substrate at an angle substantially perpendicular with the crystal plane of the non-cubic crystalline lattice of the semiconductor substrate. The method may also include aligning a second saw blade substantially perpendicularly with the semiconductor substrate and cutting entirely through the semiconductor substrate and the backmetal layer using the second saw blade.

    Absolute and differential pressure sensors and related methods

    公开(公告)号:US10589989B2

    公开(公告)日:2020-03-17

    申请号:US15782758

    申请日:2017-10-12

    发明人: Michael J. Seddon

    摘要: Implementations of absolute pressure sensor devices may include a microelectromechanical system (MEMS) absolute pressure sensor coupled over a controller die. The MEMS absolute pressure sensor may be mechanically coupled to the controller die and may also be configured to electrically couple with the controller die. A perimeter of the controller die may be one of the same size and larger than a perimeter of the MEMS absolute pressure sensor. The controller die may be configured to electrically couple with a module through an electrical connector.