Patent · US Active

Chip attach frame

US8535956B2 · kind B2 · utility

4Cited by

5References

6Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Martin Eckert · Metzingen, DE
Otto A. Torreiter · Echterdingen, DE
Quintino L. Trianni · Balingen, DE

Key dates

Filing date	Feb 14, 2012
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Feb 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53178
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A chip attach frame is used to align pins of an integrated circuit chip with pads on a chip carrier. A frame block has a socket defining two alignment edges that form a reference corner. The chip is lowered into the socket, and the chip carrier is inclined while it supports the frame block and chip until the chip moves under force of gravity to the reference corner. Once located at the reference corner, the chip position is carefully adjusted by moving the frame block in the x- and y-directions until the pins are aligned with the pads. The frame block is spring biased against movement in the x- and y-directions, and the position of the frame block is adjusted using thumbscrews. A plunger mechanism can be used to secure the integrated circuit chip in forcible engagement with the chip carrier once the pins are aligned with the pads.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.