Photoresist composition and method of forming a photoresist...

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C430S322000, C430S396000, C430S005000, C430S270100

Reexamination Certificate

active

06841338

ABSTRACT:
A photoresist composition may include formulas 1 and 2: where R is an acetal group or a ter-butyloxy carbonyl (t-BOC) group, n and m are integers, n/(m+n) is 0.01−0.8, and m/(m+n) is 1−[n/(m+n)], where r is an integer between 8-40.A method for forming photoresist patterns may include forming a photoresist layer on a semiconductor substrate and exposing and developing the photoresist layer using a mask pattern that includes first areas having a light transmissivity of about 100% and second areas having a light transmissivity of between about 10% and about 30%.

REFERENCES:
patent: 5741613 (1998-04-01), Moon et al.
patent: 5789116 (1998-08-01), Kim
patent: 5814424 (1998-09-01), Shin
patent: 5851706 (1998-12-01), Lim et al.
patent: 5853921 (1998-12-01), Moon et al.
patent: 5895735 (1999-04-01), Yoon
patent: 6432588 (2002-08-01), Tzu et al.
patent: 6593056 (2003-07-01), Takeda et al.
patent: 20010055726 (2001-12-01), Kanna et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Photoresist composition and method of forming a photoresist... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoresist composition and method of forming a photoresist..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoresist composition and method of forming a photoresist... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3408898

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.