BTI GBBTI503643277
Description des marchandises
PHOTOMASK BLANK. A PLATE, COVERED WITH A FILM OF CHROMIUM AND COATED WITH A PHOTOSENSITIVE OR ELECTRON-SENSITIVE RESIN.THE PLATE/BLANK IS IMAGED USING LASER WRITING TOOLS WITH BESPOKE CIRCUIT DIAGRAM PATTERNS, THEN PROCESSED USING DEVELOP AND ETCHANT TYPE CHEMICALS TO MAKE A PHOTOMASK.PACKAGING OF THE BLANKS INVOLVES LIGHT SENSITIVE MULTICARRIERS WHICH SIT INSIDE CUSHIONED CARDBOARD CONTAINERS OFTEN SHIPPED ON PALLETS TO PROTECT FROM EXCESS VIBRATION. THESE BLANKS ARE AVAILABLE IN SIZES FROM 3 INCHES TO 14 INCHES. THEY CAN BE MADE FROM QUARTZ OR SODA LIME GLASS.