发明名称 |
Method of making an electronic package having spacer elements |
摘要 |
A method of precisely positioning a quantity of conductive spacers (e.g., spherically shaped solder balls) on respective conductive pads (e.g., copper pads) of an underlying substrate (e.g., an FR4 printed circuit board or flexible circuit member) wherein the spacers are forcibly retained within a suitable holder and, when engaged with the respective pads, reflowed to effect a plurality of positive electrical connections between the spacers and pads. Such forcible retention allows for partial extension of the spacers from the invention's carrier, which is also disclosed.
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申请公布号 |
US5762258(A) |
申请公布日期 |
1998.06.09 |
申请号 |
US19960686241 |
申请日期 |
1996.07.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LE COZ, CHRISTIAN ROBERT;MEAD, DONALD IVAN;STOCKHOLM, ROGER JAMES |
分类号 |
B23K3/06;H05K3/34;(IPC1-7):H05K3/34;B23K3/00 |
主分类号 |
B23K3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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