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:
Nov. 20, 2007
Filed:
Oct. 19, 2005
Nicholas Biunno, Santa Clara, CA (US);
Atul Patel, Fremont, CA (US);
Ken Ogle, Los Gatos, CA (US);
George Dudnikov, San Jose, CA (US);
Nicholas Biunno, Santa Clara, CA (US);
Atul Patel, Fremont, CA (US);
Ken Ogle, Los Gatos, CA (US);
George Dudnikov, San Jose, CA (US);
HADCO Santa Clara, Inc., San Jose, CA (US);
Abstract
Improved systems and methods for laser trimming resistors are provided. An exemplary embodiment measures a resistance value for each resistor and sorts the resistors into one or more bins based on the measured resistance values and target resistance values associated with each resistor. A laser trim file may then be assigned to each bin based on a predictive trim formulation, where each laser trim file defines a set of configuration parameters for a laser drill to conform each resistor with their respective target value. The laser drill uses the laser trim files to trim the resistors within each bin in accordance with the laser trim file assigned to that bin.