Abstract: This invention relates to a flash EEPROM(Electrically Erasable Programmable Read-Only Memory) cell, more particularly to the cell having an inverter structure with an n-channel part and a p-channel part which hold a floating gate in common, in which the floating gate is charged with hot electrons produced in the n-channel part in programming and the floating gate is neutralized or inverted with hot holes produced in the p-channel part in erasing.

Abstract: A washing machine is disclosed which is suitable for use in the home and is capable of washing laundry consisting of fabrics which are thin and shrinkable such as silks, wools, etc., without damaging the delicate fabrics. The washing machine has a washing tank into which is introduced water, detergent and the laundry to be washed. A rotary blade is positioned within the washing tank. The tank is provided with a sensor which senses a first amount of water within the tank suitable to dilute the detergent, a second sensor for sensing the amount of water in the tank suitable for washing and rinsing the laundry and a third sensor for sensing when the water has been drained from the tank.

Abstract: A washing method capable of washing the laundry made of a fabric which is thin and shrinkable such as silks, wools, etc., simply at home without damaging the delicate fabrics and washing machine which is suitable for carrying out the above washing method. A detergent is introduced into a washing tank equipped with a rotary blade for generating a water stream and then a first amount of water suitable for diluting the detergent is introduced into the washing tank. Then, while rotating the rotary blade to generate a first water stream in the first amount of water, water is continuously introduced into the washing tank, so that the detergent is diluted in the first amount of water and that the washing tank is filled with a second amount of water suitable for washing the washing object.