Ifilimu eqoshiwe yesithombe, eyaziwa nangokuthi i-photochemical etching noma i-photo etching, iyinqubo yokukhiqiza esetshenziselwa ukukhiqiza izingxenye zensimbi ezinembayo ezinamaphethini noma imiklamo eyinkimbinkimbi, evame ukusetshenziswa enqubweni yokuphotha kwekhwalithi ephezulu, ukuze kugwenywe ukuvinjelwa kwe-spinneret. ama-capillaries.
Ifilimu eqoshiwe inikezela ngezinzuzo ezimbalwa ekukhiqizeni uma kuqhathaniswa nezindlela zendabuko ezifana nokugxiviza noma ukusika i-laser.Ivumela ukunemba okuphezulu, amaphethini ayinkimbinkimbi, nemiklamo eyinkimbinkimbi enokubekezelelana okuqinile.Futhi kuyindlela engabizi kakhulu yokukhiqiza amarun okukhiqiza amancane kuya kwaphakathi nendawo.Ngaphezu kwalokho, iqeda isidingo sokusebenzisa amathuluzi abizayo futhi inciphisa isikhathi sokuhola sokwenza i-prototyping nokukhiqiza.