Fine pitch electronic component placement method and apparatus
    181.
    发明授权
    Fine pitch electronic component placement method and apparatus 失效
    细间距电子元件放置方法和装置

    公开(公告)号:US5526974A

    公开(公告)日:1996-06-18

    申请号:US370631

    申请日:1995-01-10

    Abstract: A method and kit for precisely placing fine pitch surface-mount electronic components onto printed circuit boards. An alignment substrate having a pattern of solder pads and holes or transverse edges corresponding to the pattern of solder pads and holes or edges on a printed circuit board is secured to a base by registration pins fastened to the base and inserted into contact with said holes or edges. Generally, the alignment substrate is preferably another circuit board identical with the board to be bonded to the electrical component. A template having a pattern of recesses corresponding to the component lead pattern is secured over the alignment substrate. A component is placed on the template with leads in the recesses. The component is lifted away, a printed circuit board is placed over the template and the component is lower onto the board. The board with component in place can then be removed for soldering.

    Abstract translation: 一种用于将细间距表面贴装电子元件精确放置到印刷电路板上的方法和套件。 具有对应于焊盘和印刷电路板上的焊盘和孔的图形的焊盘和孔或横向边缘的对准衬底通过固定到基座并插入与所述孔接触的对准销固定到基座上, 边缘。 通常,取向基板优选为与要与电气部件接合的基板相同的另一电路基板。 具有对应于部件引线图案的凹部图案的模板被固定在对准基板上。 将部件放置在模板上,并在凹槽中引线。 将组件提起,将印刷电路板放置在模板上,并将组件放在板上。 然后可以将具有组件的板放置在适当位置以进行焊接。

    Methods of and devices for determining the soldering capability of a
solder wave
    182.
    发明授权
    Methods of and devices for determining the soldering capability of a solder wave 失效
    用于确定焊波的焊接能力的方法和装置

    公开(公告)号:US4529116A

    公开(公告)日:1985-07-16

    申请号:US489677

    申请日:1983-04-28

    Inventor: Ernst A. Gutbier

    Abstract: First and second transparent metallized gauge plates (52 and 52') of solder-nonwettable, heat-resistant material, such as glass or quartz, each have a solder wave test pattern in the form of spaced parallel metal strips (56 and 56') formed thereon. The metal strips (56) on the first gauge plate (52) are of progressively increasing widths, with a narrowest strip located adjacent one edge of the plate and a widest strip located adjacent an opposite edge of the plate. The metal strips 56' on the second gauge plate (52') are of uniform widths. The first gauge plate (52) is engaged with a solder wave (34) to measure the activation level of a soldering flux (44) being introduced into the solder wave, and thereby to determine the capability of the solder wave to produce properly soldered printed circuit board assemblies (10). The second gauge plate is engaged with the solder wave (34) to measure and/or adjust other flow characteristics of the solder wave, such as a width of solder wave impingement (80 ) on the printed circuit board assemblies (10).

    Abstract translation: 焊料不可润湿的耐热材料(例如玻璃或石英)的第一和第二透明金属化计量板(52和52')各自具有间隔开的平行金属条(56和56')形式的焊波测试图案, 形成在其上。 第一计量板(52)上的金属条(56)具有逐渐增加的宽度,最窄的带位于板的一个边缘附近,并且最宽的带位于板的相对边缘附近。 第二计量板(52')上的金属条56'具有均匀的宽度。 第一测量板(52)与焊波(34)接合,以测量引入到焊波中的焊剂(44)的激活电平,从而确定焊波产生适当焊接的印刷 电路板组件(10)。 第二测量板与焊波(34)接合以测量和/或调整焊波的其它流动特性,例如印刷电路板组件(10)上的焊波冲击(80)的宽度。

    Wiring board
    184.
    发明授权

    公开(公告)号:US12082346B2

    公开(公告)日:2024-09-03

    申请号:US18175898

    申请日:2023-02-28

    Inventor: Masahiro Kyozuka

    Abstract: A wiring board includes a first insulating layer, a pad formed on one surface of the first insulating layer, a second insulating layer, formed on the one surface of the first insulating layer, and including an opening exposing the pad, and a reinforcing metal layer formed in contact with the first insulating layer, and provided around the pad so as to be separated from the pad in a plan view. The pad is disposed inside the opening without making contact with the second insulating layer. An end, on a side of the first insulating layer, in a portion of an inner side surface of the opening of the second insulating layer makes contact with the reinforcing metal layer, and an end in another portion of the inner side surface of the opening of the second insulating layer makes contact with the one surface of the first insulating layer.

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