公开(公告)号：US5816482A

公开(公告)日：1998-10-06

申请号：US638031

申请日：1996-04-26

Applicant: Dimitry Grabbe

Inventor： Dimitry Grabbe

IPC: H01L21/48 ,  H01L21/68 ,  H05K3/34 ,  B23K3/047 ,  H01L21/60

CPC classification number: H01L21/6835 ,  H01L21/4853 ,  H05K3/3478 ,  H01L2224/11003 ,  H01L2224/11334 ,  H01L2224/742 ,  H05K2203/0195 ,  H05K2203/041 ,  H05K2203/101 ,  H05K2203/104 ,  H05K3/3494 ,  Y10T29/49213

Abstract: The present invention is directed to an apparatus and method for attaching balls to a substrate for forming a ball grid array. The apparatus consists of two pole pieces, a magnetizing coil, and an excitation coil. The first pole piece has an alignment plate having a plurality of openings, and a plurality of tips which can be magnetized by the magnetizing coil to attract a ball into each opening. Once the balls are attracted into the openings, excess balls are removed and the substrate is aligned with the balls such that each ball is in contact with a respective pad on the substrate. The first pole piece having the balls and substrate position thereon is then placed into a receiving area of the second piece. An excitation coil is excited with a high frequency signal to heat the balls and reflow solder that has been previously applied thereto. The assembly is then cooled and removed from the device and the ball grid array is complete.

Abstract translation: 本发明涉及一种用于将球附接到用于形成球栅阵列的基底的装置和方法。 该装置由两个极片，一个磁化线圈和一个励磁线圈组成。 第一极片具有多个开口的对准板，以及能够被磁化线圈磁化以吸引每个开口的球的多个尖端。 一旦球被吸引到开口中，去除多余的球，并且将基底与球对准，使得每个球与基底上的相应的垫接触。 然后将具有球和其上的基底位置的第一极片放置在第二片的接收区域中。 励磁线圈用高频信号激发，以加热球并且回流已经施加到其上的焊料。 然后将组件冷却并从装置中移除并且球栅阵列完整。

公开(公告)号：US5718145A

公开(公告)日：1998-02-17

申请号：US496376

申请日：1995-06-29

Applicant: Dimitry Grabbe

Inventor： Dimitry Grabbe

IPC: B21D22/00 ,  B21J7/42 ,  B21J9/18 ,  B21J13/08 ,  B21D37/18

CPC classification number: B21J13/08 ,  B21D22/00 ,  B21J7/42 ,  B21J9/18

Abstract: A high speed stamping and forming machine (10) is provided having a ram (34) capable of sustained high speed operation. The ram (34) is pivotally attached to a connecting rod (36) which is eccentrically coupled to a drive shaft by means of an eccentric (40) and hydrostatic bearing (50). The drive shaft (30) is journaled in hydrostatic bearings (84, 86) in the frame (12) of the machine. The ram reciprocates toward and away from a bolster plate (20) within a ram bearing (138) having hydrostatic bearings therein. A source of high pressure hydraulic fluid is interconnected to the hydrostatic bearing (50) of the eccentric coupling by means of a fluid coupling (350, 352) consisting of telescoping tubes, one end of which engages a spherically shaped seat (356, 358) in the frame (12) that is in communication with the high pressure fluid source and the other end of which engages a spherical shaped seat (354) in the moving connecting rod (36), which is in communication via a passageway (60) with the hydrostatic bearing (50). A main counterweight (142) is provided on the drive shaft (30) to counterbalance the effects of the reciprocating ram and a two shaft (166), counter-rotating weight system counterbalances lateral loads imposed on the machine (10) by the main counterweight. The bolster plate (20) of the machine is provided with a deep support structure (24) and surrounding concrete (26) to form a stable base (28) to reduce vibrations caused by the impact of the tooling with the strip of material being formed or blanked.

Abstract translation: 提供了具有能够持续高速运转的冲头（34）的高速冲压成形机（10）。 冲头（34）枢转地连接到连杆（36），该连杆通过偏心（40）和静压轴承（50）偏心联接到驱动轴。 驱动轴（30）位于机器的框架（12）中的静压轴承（84,86）中。 柱塞在其内具有静压轴承的活塞轴承（138）内朝向和远离垫板（20）往复运动。 高压液压流体源通过由伸缩管组成的流体联轴器（350,352）与偏心联轴器的静压轴承（50）相互连接，其一端接合球形座（356,358） 在与所述高压流体源连通的框架（12）中，并且所述框架（12）的另一端与所述移动连接杆（36）中的球形座（354）接合，所述移动连杆通过通道（60）与 静压轴承（50）。 主平衡配重（142）设置在驱动轴（30）上，以平衡往复式压头的作用和两轴（166），反向旋转重量系统通过主配重抵消施加在机器（10）上的横向载荷 。 机器的垫板（20）设置有深的支撑结构（24）和周围的混凝土（26），以形成稳定的基部（28），以减少由于所形成的材料条带的工具的冲击而引起的振动 或空白。

公开(公告)号：US5295841A

公开(公告)日：1994-03-22

申请号：US969597

申请日：1992-10-30

Applicant: Dimitry Grabbe ,  Iosif Korsunsky ,  Michael F. Laub

Inventor： Dimitry Grabbe ,  Iosif Korsunsky ,  Michael F. Laub

IPC: G01R1/04 ,  H05K7/10 ,  H01R9/09

CPC classification number: G01R1/0433 ,  H05K7/1038

Abstract: An improved contact for use in a high density chip carrier socket mounted on a circuit member which utilizes a cover which to wedge the leads of the chip carrier into electrical engagement with a respective contact. A tool receiving recess is incorporated into the contact so that the forces exerted on the socket while pressing the cover into place can be opposed, minimizing the forces exerted on the connection between the socket and the circuit member, typically a solder joint. Providing a tool, that operates from one side of the circuit member, in order to press the cover into place while engaging the contact recess to oppose the insertion related forces, which can also pull the cover from the contacts, without exerting significant forces on the connection, by engaging a lip in the cover while pressing on the carrier.

Abstract translation: 一种改进的接触件，用于安装在电路部件上的高密度芯片载体插座，该插座利用将芯片载体的引线与相应接触件电接合的盖板。 工具接收凹部被结合到触点中，使得施加在插座上的力同时将盖子按压就位可以相对，使得施加在插座和电路构件之间的连接（通常为焊接接头）上的力最小化。 提供从电路构件的一侧操作的工具，以便在接合接触凹部的同时将盖按压到位，以抵抗插入相关的力，这也可以从接触件拉动盖子，而不会在其上施加显着的力 通过在按压载体上的同时将盖子接合在盖子中而进行连接。

公开(公告)号：US4469389A

公开(公告)日：1984-09-04

申请号：US395563

申请日：1982-07-06

Applicant: Dimitry Grabbe ,  Johannes C. W. Bakermans ,  Nicola Cosmo ,  Iosif Korsunsky

Inventor： Dimitry Grabbe ,  Johannes C. W. Bakermans ,  Nicola Cosmo ,  Iosif Korsunsky

IPC: H01R12/88 ,  H01R9/09

CPC classification number: H01R12/88

Abstract: A miniature circuit board edge connector assembly includes an insulative housing 2, electrical spring blades 12A in the housing, conductor portions 12B pivotally interlocked with the spring blades 12A and pivotally impinged against corresponding conductive post portions 11, a cam 30 resiliently flexes the spring blades 12A, causing the conductor portions to pivot and engage circuit conductors 37 of a circuit board 38, and to provide circuit paths, from this circuit conductors 37 to the post portions 11, that are shorter than the lengths of the spring blades 12A.

Abstract translation: 微型电路板边缘连接器组件包括绝缘壳体2，壳体中的电弹簧叶片12A，与弹簧片12A枢转地互锁并枢转地撞击相应的导电柱部分11的导体部分12B，凸轮30弹性地弯曲弹簧片12A 导致导体部分枢转并接合电路板38的电路导体37，并且从该电路导体37提供短于弹簧片12A的长度的电路路径。