TY - JOUR AB - This paper describes a newly developed Copper PTF (Polymer Thick Film) which is characterised by direct solderability and high electrical conductivity. This Copper PTF claims to solve various problems existing in the conventional subtractive or firing process. It also realises new circuit production processes which are difficult to attain if conventional methods are applied. VL - 5 IS - 2 SN - 1356-5362 DO - 10.1108/eb044322 UR - https://doi.org/10.1108/eb044322 AU - Tsunaga M. AU - Kato S. PY - 1988 Y1 - 1988/01/01 TI - Present State of Directly Solderable Copper PTF T2 - Microelectronics International PB - MCB UP Ltd SP - 32 EP - 35 Y2 - 2024/04/16 ER -