Abstract: Various embodiments of the present application are directed towards a control gate layout to improve an etch process window for word lines. In some embodiments, an integrated chip comprises a memory array, an erase gate, a word line, and a control gate. The memory array comprises a plurality of cells in a plurality of rows and a plurality of columns. The erase gate and the word line are elongated in parallel along a row of the memory array. The control gate is elongated along the row and is between and borders the erase gate and the word line. Further, the control gate has a pad region protruding towards the erase gate and the word line. Because the pad region protrudes towards the erase gate and the word line, a width of the pad region is spread between word-line and erase-gate sides of the control gate.

Abstract: A vacuum suction apparatus includes a cup body, an adjust member, and a seal assembly. Therein, the cup body is hollowed with two penetrable ends, having a neck portion disposed with penetrable first and second openings at both ends thereof, while the first opening is combined with a joining member. The adjust member is screwed to the joining member. The seal assembly has an upper partition, a lower partition, and a membrane, cooperating with the adjust member to allow the air to pass through the upper partition, the lower partition, and the adjust member. A negative pressure is produced due to the seal function of the membrane, such that a male genital organ reciprocates to feel the force of withdrawing and pushing. The forces are adjustable with the adjust member, and the user is able to control the speed of the apparatus reciprocation.

Abstract: A chalk-dust collecting apparatus for blackboard erasers has a housing that contains a dust-collecting bag, a filter and a vacuum suction device. The housing is affixed with an upper lid on the top thereof. The dust-collecting bag is with its top end attached by a lid. The lid is received by the outer shoulder portion of the intermediate cover and comprises a plurality of lower air inlet slits. Further, the upper lid has a plurality of upper air inlet slits arranged correspondingly to the lower air inlet slits in the manner that each said upper air inlet slit is intercommunicated with a respective said lower air inlet slit. Thereby, chalk dust at the upper air inlet slits can be directly sucked into the bag through the lower air inlet slits and prevented from diffusing between the dust-collecting bag and upper lid. Thereby cleanness of the apparatus can be achieved.

Abstract: A chalk-dust collecting apparatus for blackboard erasers has a housing that contains a dust-collecting bag, a filter and a vacuum suction device. The housing is affixed with an upper lid on the top thereof. The dust-collecting bag is with its top end attached by a lid. The lid is received by the outer shoulder portion of the intermediate cover and comprises a plurality of lower air inlet slits. Further, the upper lid has a plurality of upper air inlet slits arranged correspondingly to the lower air inlet slits in the manner that each said upper air inlet slit is intercommunicated with a respective said lower air inlet slit. Thereby, chalk dust at the upper air inlet slits can be directly sucked into the bag through the lower air inlet slits and prevented from diffusing between the dust-collecting bag and upper lid. Thereby cleanness of the apparatus can be achieved.