Abstract: A method of making a ROM structure includes the operations of forming an active area having a channel, a source region, and a drain region; depositing a gate electrode over the channel; depositing a conductive line over at least one of the source region and the drain region; adding dopants to the source region and the drain region of the active area; forming contacts to the gate electrode, the source region, and the drain; depositing a power rail, a bit line, and at least one word line of the integrated circuit against the contacts; and dividing the active area with a trench isolation structure to electrically isolate the gate electrode from the source region and the drain region.

Abstract: A wheelchair has two sides each provided with a side support frame, an armrest, and an armrest adjusting device. The side support frame has a front portion provided with a support rack, and a rear portion provided with a positioning bar pivotally connected with a rotation shaft, so that the side support frame may be pivoted about the rotation shaft. The rotation shaft is rotatably mounted in the support shaft of the wheelchair, so that the side support frame and the rotation shaft may be rotated about the support shaft. Thus, the side support frame may be rotated about the support shaft through a fixed angle, so that the side support frame may be rotated and moved to a rear portion of the backrest of the wheelchair, thereby facilitating the user entering and leaving the wheelchair.

Abstract: A wheel chair assembly includes two identical side assemblies each of which has a front part and a rear part and a top link and a low link are respectively inserted in the horizontal fittings on the front part and the rear part. A pivotable device is pivotally connected between the top links and the low links of the two side assemblies. A hanger bracket and a caster are respectively connected to each of the front part. The rear parts each have a plurality of holes so that the shaft of the rear wheel is inserted in one of the holes.