基本信息:
- 专利标题: STABILIZED WIRE BONDED ELECTRICAL CONNECTIONS AND METHOD OF MAKING SAME
- 专利标题(中):稳定电线连接电气连接及其制造方法
- 申请号:PCT/US2003/019295 申请日:2003-06-19
- 公开(公告)号:WO2004001904A2 公开(公告)日:2003-12-31
- 发明人: RAZON, Eli
- 申请人: RAZON, Eli
- 申请人地址: 1478 Dillon Road, Maple Glen, PA 19002 US
- 专利权人: RAZON, Eli
- 当前专利权人: RAZON, Eli
- 当前专利权人地址: 1478 Dillon Road, Maple Glen, PA 19002 US
- 代理机构: SOWELL, John, B.
- 优先权: US10/179,560 20020625
- 主分类号: H01R
- IPC分类号: H01R
摘要:
A new and improved electrical connector is provided for Ball Grid Array (BGA) devices and Direct Chip Attach (DCA) devices that solves the prior art problems of mismatch in the coefficient of thermal between a semiconductor die and its substrate, PC board or carrier. The electrical connector consists of a resilient loop of wire that is permanently wire bonded at a first and a second bond position to an electrode or contact pad of a die or an interposer. The closed loop of wire is stable in the X and Y direction and resilient in the Z direction which enables the wire bonded die or interposer to be temporarily attached to a carrier or test board for all forms of tests as well as being removable and reworkable even after being permanently soldered in place on a substrate or PC board. Since the loop shaped connectors are resilient in X, Y and Z directions, the die or interposer may be clamped onto a PC board or substrate to provide a lead free electrical connection that does not require any underfill. The loop size may be made with highly conductive and/or plated (coated) wire in sizes from about 2.5 mils diameter up to about 30 mils using wire having a diameter of about 1.0 mils up to 5.0 mils to replace prior art balls used on pads of about 3 mils size or greater.
摘要(中):
为球栅阵列(BGA)器件和直接芯片连接(DCA)器件提供了一种新的改进的电连接器,其解决了半导体管芯及其衬底,PC板或载体之间的热系数不匹配的现有技术问题。 电连接器由电线的弹性回路组成,其在第一和第二接合位置处永久地引线接合到模具或插入件的电极或接触焊盘。 线的闭环在X和Y方向上是稳定的,并且在Z方向上具有弹性,这使得线接合模具或插入件能够临时连接到载体或测试板以进行所有形式的测试,并且甚至可移除和再加工 在基板或PC板上永久焊接到位之后。 由于环形连接器在X,Y和Z方向上具有弹性,所以芯片或插入件可夹在PC板或基板上,以提供不需要任何底部填充的无铅电连接。 可以使用具有约1.0密耳至高达5.0密耳直径的线的直径大约2.5密耳直径至约30密耳的高导电性和/或电镀(涂覆)线制成环尺寸,以代替在垫上使用的现有技术球 约3密耳尺寸或更大。