Patent ID: 6182342
Filing Date: 2001-02-06
Classification: H03H,Y10T

Abstract:
Process of manufacturing packaged acoustic wave devices comprising(a) patterning a first wafer with a plurality of active acoustic wave devices at spaced locations on an upper surface of the first wafer;(b) laminating said first wafer onto a ceramic wafer with bonding material therebetween such that the bonding material contacts the lower surface of the first wafer at the respective locations of said devices;(c) removing from said first wafer streets and alleys between said acoustic wave devices leaving said ceramic wafer intact, such that said devices are in the form of dies adhered to said ceramic wafer with regions of the ceramic wafer exposed between said devices;(d) forming conductive areas on said exposed areas of said ceramic substrate, and electrically connecting the active areas of said devices to respective ones of said conductive areas;(e) encapsulating said devices while on said intact ceramic substrate; and(f) after said encapsulating, cutting said ceramic wafer and singulating said devices as packaged devices.