US PATENT SUBCLASS 257 / 660
.~ With means to shield device contained in housing or package from charged particles (e.g., alpha particles) or highly ionizing radiation (i.e., hard X-rays or shorter wavelength)

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

659  DF  WITH SHIELDING (E.G., ELECTRICAL OR MAGNETIC SHIELDING, OR FROM ELECTROMAGNETIC RADIATION OR CHARGE PARTICLES) {1}
660.~ With means to shield device contained in housing or package from charged particles (e.g., alpha particles) or highly ionizing radiation (i.e., hard X-rays or shorter wavelength)

DEFINITION

Classification: 257/660

With means to shield device contained in housing or package

from charged particles (e.g., alpha particles) or highly ionizing radiation (i.e., hard X-rays or shorter wavelength):

(under subclass 659) Subject matter wherein the device is provided with means to shield it from charged particles or highly ionizing radiation contained in a housing or package separate and apart from the shielding means.