Cyclic polyisoprene photoresist compositions

    公开(公告)号:US3669669A

    公开(公告)日:1972-06-13

    申请号:US3669669D

    申请日:1970-10-28

    Applicant: IBM

    CPC classification number: H01L21/312 C08K5/28 G03F7/0125 C08L15/00

    Abstract: A CYCLIZED POLYISOPRENE/ARYL BIS-AZIDE SENSITIZED NEGATIVE PHOTORESIST FOR SEMICONDUCTOR DEVICE MANUFACTURE CONTAINING A MAXIMUM OF 1.3% SENSITIZER, AND CHARACTERIZED BY THE THREE PARAMETERS

    (A) THE PERCENTAGE OF UNCYCLIZED ISOPRENE (FOR MONOMER) UNITS AS A FUNCTION OF SENSITIZER CONTENT, REPRESENTED BY THE SYMBOL R, WHERE R=PERCENT UNCYCLIZED POLYISOPRENE/PERCENT SENSITIZER. (B) THE RATIO OF INTERNAL TO TERMINAL DOUBLE BONDS IN A CYCLIZED MATERIAL AS A FUNCTION OF SENSITIZER REPRESENTED BY THE SYMBOL Q, WHERE Q=IR ABSORBANCE OF INTERNAL C=C/IR ABSORBANCE TERMINAL C=C-PERCENT SENSISITIZER, AND (C) A COMBINED SENSITIZER DEPENDENT FIGURE OF MERIT FUNCTION K WHERE K=QRS WITH THE FOLLOWING MAXIMUM LIMITS SET TO THE PARAMETERS:

    QMAX=0.47, RMAX=13.0, AND KMAX=7.94

Patent Agency Ranking