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:
May. 06, 2003
Filed:
Dec. 19, 2001
Steven J. Fry, Carlisle, PA (US);
CTS Corporation, Elkhart, IN (US);
Abstract
A miniature ovenized crystal oscillator has a ceramic case that has a cavity, a bottom and a ledge that extends into the cavity. The case has several circuit lines. A substrate is located in the cavity and is supported by the ledge. The substrate has a top and bottom surface and several circuit lines. A crystal is mounted to the bottom surface of the substrate and is connected to the substrate circuit lines. A signal conditioning circuit is mounted to the top surface of the substrate and is connected to the substrate circuit lines. The case circuit lines are connected to the substrate circuit lines by a conductive epoxy. A heater is mounted to the bottom of the ceramic case. A thermal adhesive is located between the heater and the crystal. The thermal adhesive thermally links the crystal and the heater.