COMPACT OPTO-ELECTRONIC MODULES AND FABRICATION METHODS FOR SUCH MODULES

    公开(公告)号:US20220028908A1

    公开(公告)日:2022-01-27

    申请号:US17498105

    申请日:2021-10-11

    Abstract: Various optoelectronic modules are described and include one or more optoelectronic devices. Each optoelectronic module includes one or more optoelectronic devices. Sidewalls laterally surround each optoelectronic device and can be in direct contact with sides of the optoelectronic device or, in some cases, with an overmold surrounding the optoelectronic device. The sidewalls can be composed, for example, of a vacuum injected material that is non-transparent to light emitted by or detectable by the optoelectronic device. The module also includes a passive optical element. Depending on the implementation, the passive optical element can be on a cover for the module, directly on a top surface of the optoelectronic device, or on an overmold surrounding the optoelectronic device. Methods of fabricating such modules are described as well, and can facilitate manufacturing the modules using wafer-level processes.

    Assembly of wafer stacks
    4.
    发明授权

    公开(公告)号:US10903197B2

    公开(公告)日:2021-01-26

    申请号:US15973714

    申请日:2018-05-08

    Inventor: Hartmut Rudmann

    Abstract: A method of forming a wafer stack includes providing a sub-stack comprising a first wafer and a second wafer. The sub-stack includes a first thermally-curable adhesive at an interface between the upper surface of the first wafer and the lower surface of the second wafer. A third wafer is placed on the upper surface of the second wafer. A second thermally-curable adhesive is present at an interface between the upper surface of the second wafer and the lower surface of the third wafer. Ultra-violet (UV) radiation is provided in a direction of the upper surface of the third wafer to cure a UV-curable adhesive in openings in the second wafer and in contact with portions of the third wafer so as to bond the third wafer to the sub-stack at discrete locations. Subsequently, the third wafer and the sub-stack are heated so to cure the first and second thermally-curable adhesives.

    WAFER-LEVEL MANUFACTURE OF MICRO-DEVICES AND RELATED TWO-PIECE DEVICES, IN PARTICULAR MICRO-OPTICAL SYSTEMS

    公开(公告)号:US20200271886A1

    公开(公告)日:2020-08-27

    申请号:US16646707

    申请日:2018-08-16

    Abstract: The device (10) comprises a first member (1) and a second member (2) which are stacked upon each other in a direction vertical direction. The first and second members comprise a central portion (C1; C2) each, and the first member (1) comprises at least a first distancing element (4) abutting the second member (2). The device (10) comprises a gap zone (G) and a bonding material (3), wherein the gap zone is peripheral to the central portions (C1; C2), and in the gap zone (G), a gap (5) is present between the first and second members. A portion of the gap (5) is filled by the bonding material (3) bonding the first and second members to each other in a bonding zone (B) comprised in the gap zone. A height (h) of the gap (5) is defined by the first distancing element (4).

    Optical devices and opto-electronic modules and methods for manufacturing the same

    公开(公告)号:US10236314B2

    公开(公告)日:2019-03-19

    申请号:US15341210

    申请日:2016-11-02

    Abstract: The optical device comprises a first substrate comprising at least one optical structure comprising a main portion and a surrounding portion at least partially surrounding said main portion. The device furthermore comprises non-transparent material applied onto said surrounding portion. The opto-electronic module comprises a plurality of these optical devices comprised in said first substrate.The method for manufacturing an optical device comprises the steps of a) providing a first substrate comprising at least one optical structure comprising a main portion and a surrounding portion at least partially surrounding said main portion; and b) applying a non-transparent material onto at least said surrounding portion. Said non-transparent material is present on at least said surrounding portion still in the finished optical device.

Patent Agency Ranking