etched circuit การใช้

• The 113 electronic tubes were mounted on 34 etched circuit pluggable cards which also contain associated components.
• The etched circuit board was almost miraculous : unchanging, unmoving, yet capable of unimagined deeds and unexplored powers.
• It is usually not possible to use soldering techniques to directly connect the panel to a separate copper-etched circuit board.
• Wong and Chang's new plants are expected to operate as foundries, producing made-to-order semiconductors with etched circuits 0.25 microns wide ( a micron is one thousandth of a millimeter ), and quickly move to state-of-the-art 0.18 microns or below.
• Point-to-point wiring is not suitable for automation and is carried out manually, making it both more expensive and more susceptible to wiring errors than PCBs, as connections are determined by the person doing assembly rather than by an etched circuit board.
• Wong and Chang's new plants are expected to operate as foundries, producing made-to-order semiconductors with etched circuits 0 . 25 microns wide ( a micron is one thousandth of a millimeter ), and quickly move to state-of-the-art 0 . 18 microns or below.