Lead solder indicator and method

Semiconductor device manufacturing: process – With measuring or testing

Reexamination Certificate

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Details

C438S015000, C438S016000, C438S612000, C438S613000, C438S614000, C257S772000, C257S779000

Reexamination Certificate

active

07074627

ABSTRACT:
A solder system includes a lead (Pb) indicator and a solder flux. A method for forming a semiconductor device includes providing a carrier, applying the solder system to the carrier, coupling the terminal to the carrier via the solder system, melting the solder system to attach the terminal to the carrier and form a completed semiconductor device, and determining if the completed semiconductor device has a different predetermined property from the solder system.

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“Lead Check Swabs,” from http://www.professionalequipment.com email signup, Jun. 14, 2004, pp. 1-2.
“Lead Check,” Sargent-Welch Environment, from http://sargentwelch.com, Jun. 14, 2004, p. 1.
Tippy Wicker, New Technologies Product Feature LF Green Solder Paste, Qualitek, www.qualitek.com/technology.html.

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