Device and method for measuring thickness of dielectric layer in circuit board

    公开(公告)号:US11408720B2

    公开(公告)日:2022-08-09

    申请号:US17209738

    申请日:2021-03-23

    IPC分类号: G01B7/06 G01R1/067 G01B7/00

    摘要: A method for measuring thickness of dielectric layer in circuit board includes the following steps: First, circuit board including dielectric layer and circuit layers is provided. The dielectric layer is between the circuit layers, and the circuit board further includes test area including test pattern and through hole. The test pattern includes first conductor and second conductors. The distance between the side of the through hole and the second conductor is less than the distance between the side of the through hole and the first conductor. Next, measuring device including conductive pin and sensing element is provided. Next, the conductive pin is powered, and one end of the conductive pin is electrically connected to the second conductor. Next, the sensing element is moved along the through hole to obtain sensing curve, and the thickness of the dielectric layer is calculated via variations of the sensing curve.

    CARRIER BOARD STRUCTURE WITH AN INCREASED CORE-LAYER TRACE AREA AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:US20210378092A1

    公开(公告)日:2021-12-02

    申请号:US16944178

    申请日:2020-07-31

    摘要: Carrier board structure with an increased core-layer trace area and method for manufacturing the same are introduced. The carrier board structure comprises a core layer structure, a first circuit build-up structure, and a second circuit build-up structure. The core layer structure comprises a core layer, a signal transmission portion, and an embedded circuit layer, wherein the signal transmission portion and the embedded circuit layer are disposed inside the core layer and electrically connected. The first circuit build-up structure is disposed on the core layer on a same side as the embedded circuit layer and is electrically connected to the embedded circuit layer. The second circuit build-up structure is disposed on the core layer on a same side as the signal transmission portion, and is electrically connected to the first circuit build-up structure through the signal transmission portion and the embedded circuit layer.

    Manufacturing method for circuit board and circuit board thereof

    公开(公告)号:US10820411B1

    公开(公告)日:2020-10-27

    申请号:US16879951

    申请日:2020-05-21

    摘要: A manufacturing method for a circuit board and a circuit board are provided. The method includes steps: providing a substrate having a first metal layer; forming a patterned first opening on the first metal layer to expose the substrate; forming a patterned first dielectric layer on the substrate, the first dielectric layer is made of a photosensitive dielectric material and covers the first opening; photosensitizing the first dielectric layer to cure the first dielectric layer; forming a patterned second metal layer on the first metal layer; forming a patterned third metal layer on the second metal layer, and the third metal layer being adjacent to the first dielectric layer; removing a portion of the first metal layer not covered by the second metal layer; and forming a second dielectric layer on the substrate. A thickness of the third metal layer is greater than a thickness of the second metal layer.

    Packaging substrate having embedded interposer and fabrication method thereof
    4.
    发明授权
    Packaging substrate having embedded interposer and fabrication method thereof 有权
    具有嵌入式插入器的封装基板及其制造方法

    公开(公告)号:US09385056B2

    公开(公告)日:2016-07-05

    申请号:US13566323

    申请日:2012-08-03

    摘要: A packaging substrate includes a carrier and an interposer. The carrier has opposite top and bottom surfaces. A recess is formed on the top surface and a plurality of first conductive terminals are formed on the recess. Further, a plurality of second conductive terminals are formed on the bottom surface of the carrier. The interposer is disposed in the recess and has opposite first and second surfaces and a plurality of conductive through vias penetrating the first and second surfaces. A first conductive pad is formed on an end of each of the conductive through vias exposed from the first surface, and a second conductive pad is formed on the other end of each of the conductive through vias exposed from the second surface and electrically connected to a corresponding one of the first conductive terminals. Compared with the prior art, the invention improves the product reliability.

    摘要翻译: 封装基板包括载体和插入件。 载体具有相对的顶部和底部表面。 在顶面形成有凹部,在凹部上形成有多个第一导电端子。 此外,在载体的底表面上形成多个第二导电端子。 插入器设置在凹部中并且具有相对的第一和第二表面以及穿过第一表面和第二表面的多个导电通孔。 第一导电焊盘形成在从第一表面暴露的每个导电通孔的端部上,并且第二导电焊盘形成在从第二表面暴露的每个导电通孔的另一端上并且电连接到 对应的第一导电端子之一。 与现有技术相比,本发明提高了产品的可靠性。

    Method of fabricating packaging substrate
    7.
    发明授权
    Method of fabricating packaging substrate 有权
    制造包装基材的方法

    公开(公告)号:US09070616B2

    公开(公告)日:2015-06-30

    申请号:US14097656

    申请日:2013-12-05

    摘要: A packaging substrate includes a first dielectric layer; a plurality of first conductive pads embedded in and exposed from a first surface of the first dielectric layer; a first circuit layer embedded in and exposed from a second surface of the first dielectric layer; a plurality of first metal bumps disposed in the first dielectric layer, each of the first metal bumps having a first end embedded in the first circuit layer and a second end opposing the first end and disposed on one of the first conductive pads, a conductive seedlayer being disposed between the first circuit layer and the first dielectric layer and between the first circuit layer and the first metal bump; a built-up structure disposed on the first circuit layer and the first dielectric layer; and a plurality of second conductive pads disposed on the built-up structure. The packaging substrate has an over-warpage problem improved.

    摘要翻译: 封装基板包括第一介电层; 多个第一导电焊盘,其嵌入并暴露于所述第一介电层的第一表面; 第一电路层,其被嵌入并暴露于所述第一介电层的第二表面; 设置在第一电介质层中的多个第一金属凸块,每个第一金属凸块具有嵌入在第一电路层中的第一端和与第一端相对的第二端并且设置在第一导电焊盘之一上,导电种子层 设置在第一电路层和第一电介质层之间以及第一电路层和第一金属凸块之间; 布置在第一电路层和第一介电层上的叠层结构; 以及设置在所述积层结构上的多个第二导电焊盘。 包装衬底具有改善的超翘曲问题。

    PACKAGE SUBSTRATE AND METHOD FOR TESTING THE SAME
    9.
    发明申请
    PACKAGE SUBSTRATE AND METHOD FOR TESTING THE SAME 审中-公开
    封装基板及其测试方法

    公开(公告)号:US20140264335A1

    公开(公告)日:2014-09-18

    申请号:US13845800

    申请日:2013-03-18

    IPC分类号: H01L21/66

    摘要: A package substrate is provided, including a board body having a wiring region and a testing region defined thereon, conductive pads embedded in the wiring region, and a plurality of testing pads disposed in the testing region and electrically connected to the conductive pads, wherein the top surface area of each of the testing pads is greater than the top surface area of each of the conductive pads in order to facilitate a precise alignment of a probe with a corresponding one of the testing pads and prevent the probe from being blocked by the board body when in electrically testing an embedded circuit.

    摘要翻译: 提供一种封装基板,包括具有布线区域和限定在其上的测试区域的板体,嵌入布线区域中的导电焊盘以及设置在测试区域中并电连接到导电焊盘的多个测试焊盘,其中, 每个测试焊盘的顶表面积大于每个导电焊盘的顶表面积,以便于探针与对应的一个测试焊盘的精确对准,并防止探针被板阻挡 身体在电测试嵌入式电路时。

    METHOD FOR MANUFACTURING PACKAGE SUBSTRATE
    10.
    发明申请
    METHOD FOR MANUFACTURING PACKAGE SUBSTRATE 审中-公开
    制造包装衬底的方法

    公开(公告)号:US20140263168A1

    公开(公告)日:2014-09-18

    申请号:US14088782

    申请日:2013-11-25

    IPC分类号: H05K3/00 H05K3/10

    摘要: A method for manufacturing a package substrate is provided, including etching a substrate to form trenches each having a buffer portion, and forming a circuit in each of the trenches. The trenches are formed by etching instead of excimer laser to increase the aspect ratio of the trench, thereby solving the problem that the metallic layer is not thick enough and achieving a high yield of the circuit and a good process capability index.

    摘要翻译: 提供了一种制造封装衬底的方法,包括蚀刻衬底以形成各自具有缓冲部分的沟槽,并且在每个沟槽中形成电路。 通过蚀刻而不是准分子激光形成沟槽,以增加沟槽的纵横比,从而解决了金属层不够厚并且实现电路的高产率和良好的工艺能力指数的问题。