PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2815&OB=ASC.html
: - Via Keepout: prevents a via being placed on that layer. - Via Hole Keepout: allows a via to be stop on that layer, but prevents it passing through the dielectric layer below that layer
ORION Industries | http://orionindustries.com/pdfs/nomex410.pdf
Nomex Type 410 risk of partial discharges (corona). The Full Wave Impulse dielectric strength data of Table I were generated on flat sheets, such as in layer and barrier applications
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/thermal-compound-glossary
) has the minimum thermal resistance. Thermal resistance will not change at thickness less than this value. C D Dielectric Constant A measure of a substance's ability to insulate charges from each other
ORION Industries | http://orionindustries.com/pdfs/mylarel21.pdf
. The excellent dielectric strength, moisture resistance, and physical toughness make Mylar® a very versatile and functional insulating material
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resources/thermal-compound-dictionary
) has the minimum thermal resistance. Thermal resistance will not change at thickness less than this value. C D Dielectric Constant A measure of a substance's ability to insulate charges from each other
ORION Industries | http://orionindustries.com/pdfs/SILPADA2000.pdf
. SPA-2000 is for applications where optimal heat transfer is a requirement. This thermally conductive silicone elastomer is formulated to maximize the thermal and dielectric performance of the filler/binder matrix. The result is a “grease-free
Imagineering, Inc. | https://www.pcbnet.com/blog/pcb-substrate/
. Coating the core is prepreg , a dielectric material binding agent that covers the core. An outer layer of foil is attached to the surface, forming the surface area which component parts will be attached and traces will be etched
Imagineering, Inc. | https://www.pcbnet.com/blog/what-are-aluminum-printed-circuit-boards-used-for/
– The circuit layer in an aluminum PCB is made using copper foil. Typically, this layer is slightly thicker than a standard circuit board, allowing the board to carry a larger current. Dielectric Layer
ORION Industries | http://orionindustries.com/pdfs/formex.pdf
˚F MECHANICAL WITHOUT IMPACT 95˚C/203˚F 105˚C/221˚F 115˚C/239˚F 115˚C/239˚F 115˚C/239˚F ELECTRICAL PROPERTIES DIELECTRIC BREAKDOWN-VO LTS ASTM D-149 18,000 22,000 24,820 32,400 37,800 DIELECTRIC STRENGTH-VOLTS/MIL ASTM D-149 1800 2200 1460 1080 945 VOLUME RESISTIVITY-OHM-CM ASTM D-257 146 x 1015 3.97 x 1015 3.97 x 1015 3.97 x 1015
Imagineering, Inc. | https://www.pcbnet.com/blog/fr-4-vs-rogers-material-for-manufacturing-rf-pcbs/
. Dielectric Constant (Dk) The dielectric constant is a material’s ability to store electrical energy in electric fields, depending on its direction with the axis
