Microelectronics and Computer Technology Corporation

Other

Ernest R Nolan

Thomas Alan Bishop

Charles W Lin

Richard D Nelson

David H Carey

Robert W Froehlich

Chung J Lee

Mark R Breen

Randy L German

Diana C Duane

Kimcuc T Tran

Kathryn V Keswick

Todd H Herder

TAB tape is used to contact integrated circuit chip electrodes (without actual metallurgical bonding) at approximately 10 grams per lead contact force. The chip is clamped to the TAB leads, and held in place so that the tape site can be transported, tested, and burned-in like a TAB chip on tape. A TAB tape frame is utilized with the inner lead bond fingers angled upwards so that the ends of the fingers perform a scrubbing action on the chip contacts when the IC chip is engaged with the TAB tape slide carrier socket. A silicone bead provides a spring-like action underneath the fingers.

Tab tape-based bare chip test and burn-in carrier

Compliant electrically connection bumps for an adhesive flip chip integrated circuit device and various methods for forming the bumps include the steps of forming polymer bumps on a substrate or an integrated circuit die and coating the polymer bumps with a metallization layer. The polymer bump forming step includes the steps of coating a polymer material on a substrate, curing the polymer and the etching the bump pattern from the polymer material. The overcoating step includes electrolessly plating a ductile metal such as gold on the polymer bump.

Compliant electrically connective bumps for an adhesive flip chip

A method for selectively electroplating a metallic coating, such as solder, onto a plurality of small and closely spaced electrical contacts. The method includes sealingly enclosing the contacts in an electroplating cell having an anode, a cathode and a chamber, forming an electrical connection between the cathode and the contacts and electroplating the contacts.

Methods and apparatus for electroplating electrical contacts

A method and apparatus for selectively electroplating a metallic coating, such as solder, onto a plurality of small and closely spaced electrical contacts. The method includes sealingly enclosing the contacts in an electroplating cell having an anode, a cathode and a chamber, forming an electrical connection between the cathode and the contacts and electroplating the contacts.

Apparatus for electroplating electrical contacts

Removing welded outer lead bonds of TAB tape leads to contacts on a substrate. The method includes separating the electrical leads adjacent the weld bonds leaving a remnant, engaging the remnant with a shear tool, and moving the tool and bond relative to each other shearing the remnant. In some cases the tool is ultrasonically vibrated in a direction transversely to the relative movement of the tool and bond.

Method and apparatus for removing bonded connections

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Round Rock, TX, United States of America

Ernest R Nolan