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    • 26. 发明专利
    • METHOD OF MANUFACTURING AN ELECTRONIC DEVICE, AND ELECTRONIC DEVICE
    • AU2003214578A1
    • 2003-10-20
    • AU2003214578
    • 2003-04-08
    • KONINKL PHILIPS ELECTRONICS NV
    • WEEKAMP JOHANNUS WVEEN NICOLAAS J A VAN
    • H01L23/12H01L21/56H01L21/68H01L23/31H01L23/538
    • The invention relates to a method of manufacturing a semiconductor device ( 10 ), whereby an electric element ( 11 ) is attached on or above a carrier plate ( 4 ) which comprises a first layer ( 5 ) of a first material and a second layer ( 2 ) of a second material which differs from the first, which is electrically conducting, which has a smaller thickness than the first layer ( 5 ), and in which a cavity ( 6 ) is formed that extends at least to the first layer ( 5 ). The element ( 11 ) is electrically connected to parts ( 2 ) of the carrier plate ( 4 ) at first connection regions ( 1 ), and an encapsulation is deposited around the element ( 11 ) and in the cavity ( 6 ). Then so much of the first layer ( 5 ) of the carrier plate ( 4 ) is removed that the cavity ( 6 ) is reached, whereby second connection conductors ( 2 ) are formed from the remaining portion of the carrier plate ( 4 ). According to the invention, at least one further cavity ( 7 ) is formed in a portion of the carrier plate ( 4 ) surrounded by the cavity ( 6 ) before the encapsulation ( 3 ) is deposited, which further cavity ( 7 ) becomes at least substantially filled with a portion of the encapsulation ( 3 ) during the deposition thereof and, within the second connection regions ( 2 ), separates a portion ( 2 A) thereof from the remaining portion ( 2 B) thereof, the smallest dimension of the portion ( 2 A) being chosen to be smaller than the smallest dimension of the remaining portion ( 2 B) of each second connection region ( 2 ). The portion ( 2 A) may thus be readily provided with solder ( 8 A) having a smaller thickness than the solder ( 8 B) in the remaining portion of the second connection region ( 2 ). This is an advantage, for example in the case of surface mounting of the device ( 10 ). Preferably, the first connection regions ( 1 ) are connected to the portion ( 2 A) of the connection region ( 2 ).
    • 27. 发明专利
    • DE602005007599D1
    • 2008-07-31
    • DE602005007599
    • 2005-05-04
    • KONINKL PHILIPS ELECTRONICS NV
    • KUIPER STEINHENDRIKS BERNARDUS HWEEKAMP JOHANNUS W
    • G02B26/02G02B3/14
    • The electrowetting cel ( 15 ) that is primarily to be used as a variable focus lens, comprises a liquid chamber ( 50 ) containing a first and a second immiscible fluid ( 51, 52 ), which are in contact across a meniscus ( 14 ) and of which the first fluid ( 51 ) is a polar and the second ( 52 ) is electrically conductive. The liquid chamber ( 50 ) is provided with an inner face ( 18 ), at which a fluid contact layer ( 10 ) is present, which has an inherent attraction to the first liquid. An electrode is separated from the liquid chamber ( 50 ) through this fluid contact layer ( 10 ). The fluid chamber ( 50 ) is constructed such that it has a small diameter at an operating point ( 101 ) at the inner face ( 18 ) than at a point of tangency ( 102 ), while a tangent (R 1 ) to the operating point ( 101 ) encloses a smaller angle with the optical axis (OA) of the cell ( 15 ) than a tangent (R 2 ) to the second point ( 102 ). This results in the fact that the meniscus ( 14 ) that touches the inner wall ( 18 ) at the second point ( 102 ) is oriented towards the optical axis and that the cell ( 15 ) can have a low construction height.