The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2001
Filed:
Jan. 06, 2000
Karen E. Yokoyama, Rancho Palos Verdes, CA (US);
Gershon Akerling, Culver City, CA (US);
Moshe Sergant, Culver City, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A method for forming high frequency connections between a fragile chip and a substrate is described, wherein metal is selectively deposited on a surface of a chip and a surface of a substrate, and corresponding patterns of electrically conductive bumps are selectively evaporated on the surface of the chip and the surface of the substrate over the metal layers, to form a pattern of electrically conductive bumps having spongy and dendritic properties, placing the chip in aligned contact with the substrate where each electrically conductive chip bump mates with each corresponding electrically conductive substrate bump, and selectively applying heat and pressure to the chip and substrate causing each chip bump to fuse together with each corresponding substrate bump to form an electromechanical bond.