Substrate having internal capacitor and method of making same
    40.
    发明授权
    Substrate having internal capacitor and method of making same 有权
    具有内部电容器的基板及其制造方法

    公开(公告)号:US08607445B1

    公开(公告)日:2013-12-17

    申请号:US13517776

    申请日:2012-06-14

    IPC分类号: H05K3/30

    摘要: A method of making a circuitized substrate which includes at least one and possibly several capacitors as part thereof. In one embodiment, the substrate is produced by forming a layer of capacitive dielectric material on a dielectric layer and thereafter forming channels with the capacitive material, e.g., using a laser. The channels are then filled with conductive material, e.g., copper, using selected deposition techniques, e.g., sputtering, electro-less plating and electroplating. A second dielectric layer is then formed atop the capacitor and a capacitor “core” results. This “core” may then be combined with other dielectric and conductive layers to form a larger, multilayered PCB or chip carrier. In an alternative approach, the capacitive dielectric material may be photo-imageable, with the channels being formed using conventional exposure and development processing known in the art.

    摘要翻译: 一种制造电路化衬底的方法,其包括至少一个可能的几个电容器作为其一部分。 在一个实施例中,通过在电介质层上形成电容电介质材料层,然后用电容材料形成通道,例如使用激光来制造衬底。 然后使用所选择的沉积技术,例如溅射,无电镀和电镀,用导电材料(例如铜)填充通道。 然后在电容器顶部形成第二电介质层,并产生电容器“芯”。 然后,该“芯”可以与其它电介质层和导电层组合以形成较大的多层PCB或芯片载体。 在替代方法中,电容介电材料可以是可光成像的,其中通道是使用本领域已知的常规曝光和显影处理形成的。