TRESKY soldering tiyo ku formic acid vapor ku nitrogen (HCOOH + N2), ma mio bero i optoelectronics man photonics assembly man interconnect technologies. Formic acid dwoko piny oxides man jwigo flux. Tic ku formic acid de ketho piny bedo maleng, ma weko bedo maber pi tic mi welding ma tek. Module eni jutiyo kudu pi eutectic soldering man thermocompression welding, calu ku indium. Lembe mi mako piny zo tiyo ku nitrogen-enriched formic acid (HCOOH) ma tiyo ku piny ma julwongo ni bubbler. Rubu pa nitrogen vapor ku formic acid ju ketho i ot mi yath i yore ma jugwoko man juwodho.