Removal of metal skin from a copper-Invar-copper laminate
    1.
    发明授权
    Removal of metal skin from a copper-Invar-copper laminate 失效
    从铜Inv铜层压板去除金属表皮

    公开(公告)号:US06228246B1

    公开(公告)日:2001-05-08

    申请号:US09347581

    申请日:1999-07-01

    IPC分类号: C25F300

    摘要: A method of removing a metal skin from a through-hole surface of a copper-Invar-copper (CIC) laminate without causing differential etchback of the laminate. The metal skin includes debris deposited on the through-hole surface as the through hole is being formed by laser or mechanical drilling of a substrate that includes the laminate as an inner plane. Removing the metal skin combines electrochemical polishing (ECP) with ultrasonics. ECP dissolves the metal skin in an acid solution, while ultrasonics agitates and circulates the acid solution to sweep the metal skin out of the through hole. ECP is activated when a pulse power supply is turned on and generates a periodic voltage pulse from a pulse power supply whose positive terminal is coupled to the laminate and whose negative terminal is coupled to a conductive cathode. After the metal skin is removed, the laminate is differentially etched such that the copper is etched at a faster rate than the Invar. To prevent the differential etching, a copper layer is formed on a surface of the substrate with an electrical resistance R1 between the copper layer and the positive terminal of the pulse power supply. Additionally, an electrical resistance R2 is formed between the laminate and the positive terminal of the pulse power supply. Adjustment of R1 and R2 controls the relative etch rates of the copper and the Invar.

    摘要翻译: 从铜 - 堇青铜(CIC)层压板的通孔表面去除金属表皮而不会引起层压板的不均匀回蚀的方法。 金属皮肤包括沉积在通孔表面上的碎屑,因为通孔是通过激光或机械钻孔形成的,所述基底包括层压体作为内平面。 去除金属皮肤结合电化学抛光(ECP)与超声波。 ECP将金属皮肤溶解在酸性溶液中,同时超声波搅拌并循环酸溶液以将金属皮肤从通孔中扫出。 当脉冲电源接通时,ECP被激活,并从脉冲电源产生周期性的电压脉冲,该脉冲电源的正极端子耦合到层压板并且其负极端子连接到导电阴极。 在去除金属表皮之后,层压体被差异蚀刻,使得以比Invar更快的速度蚀刻铜。 为了防止差分蚀刻,在衬底的表面上在铜层和脉冲电源的正端之间具有电阻R1形成铜层。 此外,在层压体和脉冲电源的正极端之间形成电阻R2。 R1和R2的调整控制铜和殷钢的相对蚀刻速率。

    Method of making circuitized substrate with internal optical pathway using photolithography
    3.
    发明授权
    Method of making circuitized substrate with internal optical pathway using photolithography 失效
    使用光刻法制造具有内部光学路径的电路化衬底的方法

    公开(公告)号:US07713767B2

    公开(公告)日:2010-05-11

    申请号:US11907004

    申请日:2007-10-09

    摘要: A method of making a circuitized substrate (e.g., PCB) including at least one and possibly several internal optical pathways as part thereof such that the resulting substrate will be capable of transmitting and/or receiving both electrical and optical signals. The method involves forming at least one opening between a side of the optical core and an adjacent upstanding member such that the opening is defined by at least one angular sidewall. Light passing through the optical core material (or into the core from above) is reflected off this angular sidewall. The medium (e.g., air) within the opening thus also serves as a reflecting medium due to its own reflective index in comparison to that of the adjacent optical core material. The method utilizes many processes used in conventional PCB manufacturing, thereby keeping costs to a minimum. The formed substrate is capable of being both optically and electrically coupled to one or more other substrates possessing similar capabilities, thereby forming an electro-optical assembly of such substrates.

    摘要翻译: 一种制造电路化衬底(例如PCB)的方法,其包括至少一个可能的几个内部光学路径作为其一部分,使得所得到的衬底将能够传输和/或接收电信号和光信号。 该方法包括在光学核心的一侧和相邻的直立构件之间形成至少一个开口,使得开口由至少一个角形侧壁限定。 通过光学芯材料(或从上方进入芯体)的光从该角形侧壁反射。 因此,开口内的介质(例如空气)由于其相对于相邻的光学芯材料的反射率而与反射介质一样起作用。 该方法利用了常规PCB制造中使用的许多工艺,从而将成本降至最低。 所形成的基底能够光学和电耦合到具有相似能力的一个或多个其它基底,从而形成这种基底的电光学组件。

    Dielectric structure and method of formation
    6.
    发明授权
    Dielectric structure and method of formation 失效
    介电结构和形成方法

    公开(公告)号:US06699350B2

    公开(公告)日:2004-03-02

    申请号:US10217616

    申请日:2002-08-12

    IPC分类号: B32B3100

    摘要: A method for forming a dielectric structure. A first layer is formed, wherein the first layer includes a first fully cured photoimageable dielectric (PID) material. A sticker lays is nonadhesively formed on the first layer, wherein the sticker layer includes a partially cured PID material. A second layer is nonadhesively formed on the sticker layer, wherein the second layer includes a second fully cured PID material, wherein the sticker layer is nonadhesively sandwiched between the first layer and the second layer such that the sticker layer is in non-adhesive contact with the first layer and in non-adhesive contact with the second layer, and wherein the sticker layer is capable of remaining in non-adhesive contact with the first layer and the second layer until the sticker layer is subsequently subjected to additional curing.

    摘要翻译: 一种形成电介质结构的方法。 形成第一层,其中第一层包括第一完全固化的可光成像的电介质(PID)材料。 在第一层上非粘性地形成贴纸,其中贴纸层包括部分固化的PID材料。 第二层非粘性地形成在粘合剂层上,其中第二层包括第二完全固化的PID材料,其中粘合层非粘性地夹在第一层和第二层之间,使得粘合剂层与 所述第一层与所述第二层非粘合接触,并且其中所述粘合剂层能够保持与所述第一层和所述第二层的非粘合性接触,直到所述粘合剂层随后进行另外的固化。

    Dielectric structure and method of formation
    9.
    发明授权
    Dielectric structure and method of formation 失效
    介电结构和形成方法

    公开(公告)号:US06495239B1

    公开(公告)日:2002-12-17

    申请号:US09458291

    申请日:1999-12-10

    IPC分类号: B32B310

    摘要: A dielectric structure, wherein two fully cured photoimageable dielectric (PID) layers of the structure are nonadhesively interfaced by a partially cured PID layer. The partially cured PID layer includes a power plane sandwiched between a first partially cured PID sheet and a second partially cured PID sheet. The fully cured PID layers each include an internal power plane, a plated via having a blind end conductively coupled to the internal power plane, and a plated via passing through the fully cured PID layer. The dielectric structure may further include a first PID film partially cured and nonadhesively coupled to one of the fully cured PID layers. The dialectric structure may further include a second PID film partially cured and nonadhesively coupled to the other fully cured PID layer.

    摘要翻译: 一种电介质结构,其中该结构的两个完全固化的可光成像电介质(PID)层通过部分固化的PID层非粘性地接合。 部分固化的PID层包括夹在第一部分固化的PID片和第二部分固化的PID片之间的动力平面。 完全固化的PID层各自包括内部电源平面,具有导电耦合到内部电源平面的盲端的电镀通孔以及穿过完全固化的PID层的电镀通孔。 电介质结构还可以包括部分固化并非粘性地耦合到完全固化的PID层之一的第一PID膜。 所述方程式结构还可以包括部分固化并非粘性地耦合到另一完全固化的PID层的第二PID膜。

    Semi-subtractive circuitization
    10.
    发明授权
    Semi-subtractive circuitization 失效
    半减法电路

    公开(公告)号:US5427895A

    公开(公告)日:1995-06-27

    申请号:US172409

    申请日:1993-12-23

    摘要: A process for selective plating of a metal onto a substrate surface is provided. The process includes laminating a layer of conductive metal onto a dielectric substrate; and providing thru holes extending through said layer of conductive metal and said dielectric substrate.A thin layer of conductive metal is plated on the walls of the thru holes; and a photoresist layer is applied to the surface of the conductive metal and selectively exposed and developed to provide a mask corresponding to the negative of the desired circuit pattern.The exposed metal that is not covered by the photoresist is removed and then the remaining photoresist is removed to thereby provide the desired circuit pattern. A conductive metal is plated on the pattern up to the desired thickness.

    摘要翻译: 提供了将金属选择性镀覆到基板表面上的工艺。 该方法包括将导电金属层层压到电介质基底上; 并且提供穿过所述导电金属层和所述电介质基板的通孔。 导电金属薄层镀在通孔的壁上; 并且将光致抗蚀剂层施加到导电金属的表面并选择性地暴露和显影以提供对应于期望电路图案的负值的掩模。 去除未被光致抗蚀剂覆盖的暴露的金属,然后除去剩余的光致抗蚀剂,从而提供所需的电路图案。 将导电金属镀在图案上达到所需厚度。