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:
Jun. 23, 1992
Filed:
Sep. 13, 1990
Diwakar Garg, Macungie, PA (US);
Sui-Yuan Lynn, Macungie, PA (US);
Robert L Iampietro, Emmaus, PA (US);
Ernest L Wrecsics, Bethlehem, PA (US);
Paul N Dyer, Allentown, PA (US);
Diamonex, Incorporated, Allentown, PA (US);
Abstract
The method for depositing multilayers of PCD film onto the substrate comprises chemically depositing a polycrystalline diamond layers onto the substrate at deposition temperatures in the range of 650.degree. to 825.degree. C., interrupting the deposition process with a cool-down step and then depositing at least one other layer under the same deposition conditions. The method enables one to deposit PCD films having a thickness of at least 12 microns for applications on flat as well as curved substrates having wide use in the electronics industry. Thick PCD films of this invention have been found to be ideal for dissipating heat from radio frequency (RF) and microwave (MW) devices.