PAMELA TURCI
Massage Therapy in Harvard, MA
License number
Massachusetts 4763
Issued Date
May 13, 2008
Expiration Date
May 28, 2017
Type
Massage Therapist Practitioner
Address
Address
Harvard, MA 01451
Professional information
Photoresist With Photoactive Compound Mixtures
US Patent:
5723254, Mar 3, 1998
Filed:
Sep 4, 1996
Appl. No.:
8/706096
Inventors:
Anthony Zampini - Westborough MA
Peter Trefonas - Medway MA
Pamela Turci - Harvard MA
Catherine C. Meister - Medway MA
Gerald C. Vizvary - Lowell MA
Peter Trefonas - Medway MA
Pamela Turci - Harvard MA
Catherine C. Meister - Medway MA
Gerald C. Vizvary - Lowell MA
Assignee:
Shipley Company, L.L.C. - Marlboro MA
International Classification:
G03F 7023
US Classification:
430190
Abstract:
The invention relates to a positive-acting photoresist composition containing a mixture of photoactive compounds. One component of the mixture is the esterification product of an o-quinonediazide sulfonyl compound with a phenolic resin. Another component of the mixture is the esterification product of an o-quinonediazide sulfonyl compound with a low molecular weight phenol having from one to three aryl groups and from one to three hydroxyl groups. A third photoactive component which may be present in the formulation is the esterification product of an o-quinonediazide sulfonyl compound with a relative high molecular weight, polyhydric, polynuclear phenol.