摘要:
So as to confirm bonding precision for assuring accurate bonding, a precision confirmation substrate composed of a transparent sheet member and a precision confirmation chip composed of a transparent sheet member are used; and a precision confirmation substrate positioning component for positioning and fixing the precision confirmation substrate is provided on a bonding station, the precision confirmation chip is held by suction to a tool and disposed above the precision confirmation substrate, images of the precision confirmation substrate and precision confirmation chip are detected by an optical probe, the precision confirmation substrate and precision confirmation chip are moved and positioned relative to each other, the precision confirmation chip is then placed on the precision confirmation substrate, and the superimposed precision confirmation substrate and precision confirmation chip are again detected by the optical probe.
摘要:
With the object of providing an imaging method that eliminates the occurrence of transfer ghosts, saves space and lowers costs, and by which image density irregularities do not arise, an imaging method utilized in a reverse-transfer system is disclosed. The reverse-transfer system is provided with, in order going round a photosensitive conductor 1, at least a main-charging stage 2, an exposure stage 3, a reverse-developing stage 4, a transfer stage 5, a separation stage 6 and a charge-stripping stage 7. The separation stage 6 applies a separation shift-bias voltage to the photosensitive conductor 1 surface. The separation shift-bias voltage is 1 kV or more, and is of the same polarity as that of the main-charging voltage that the main-charging stage 2 applies to the photosensitive conductor 1 surface. Making the separation shift-bias voltage 1 kV or more prevents transfer ghosts, and obtains images with a satisfactory absence of image density irregularities.
摘要:
In a bulk feeder, chips, stored randomly in a storage chamber, are fed one by one into a pipe extending vertically downwardly from the bottom of the storage chamber, and are further sequentially fed to a pickup position. In order to prevent the incomplete feeding of the chips into the pipe, an outer tube is provided in a manner to insert the pipe into the outer tube, and two projections are formed around an outer peripheral surface of the outer tube, and a pin is received between the two projections. The pin is rotated by a motor in eccentric relation to a horizontal axis of rotation of this motor, and the outer tube, while rotating, moves upward and downward, so that an upper end portion of the outer tube projects upwardly beyond an upper end of the pipe. As a result, the outer tube breaks into and disperses the group of chips residing above the pipe, so that the chips can be fed one by one into the pipe, and then the chips are fed sequentially to the pickup position.
摘要:
A RAM mounted so as to mix with logic circuits has a plurality of memory mats and one control circuit provided for the plurality of memory mats. Arithmetic circuits for respectively performing +1 or -1 arithmetic operations are respectively provided so as to correspond to the respective memory mats and are electrically connected in cascade form. An input terminal of the initial-stage arithmetic circuit is supplied with address-setting fixed address signals. Input signals supplied to the next and subsequent arithmetic circuits or signals outputted therefrom are defined as own-assigned address signals (those assigned to the corresponding memory mats). A comparator provided in association with each arithmetic circuit referred to above makes comparisons for coincidence between the address signals and address signals input upon memory access. The corresponding memory mat is selected based on the resultant coincidence signal.
摘要:
A lead frame separating and conveying device used with, for instance, a wire bonding apparatus, including a frame separating assembly that includes frame guides which support lead frames that are lined up with the flat surfaces in a vertical direction, frame suspension guides which are installed above the front ends of the frame guides in the feeding direction of the lead frames, and a frame pusher which pushes the rear end of the lead frames lined up on the frame guides so as to convey the lead frames onto the frame suspension guides. The frame suspension guides supports the lead frames in a suspended fashion and have frame separating sections which are inclined upward.
摘要:
This invention relates to an image forming apparatus in which a cleaning device is arranged above a photosensitive drum close thereto. The image forming apparatus has an image processing unit provided with the photosensitive drum. The photosensitive drum is constructed such that a gear portion formed in a flange member at one axial end of the photosensitive drum has a diameter not greater than an outer diameter of the photosensitive drum. The image processing unit is constructed such that a driving force from the image forming apparatus is transmitted to the photosensitive drum via the gear portion formed in the one flange member to rotate the photosensitive drum and is transmitted to at least one of image processor means via a gear portion formed in a flange member at the opposite axial end of the photosensitive drum. With this arrangement, a poor image formation due to a blocking phenomenon resulting from long stay of toner residues can be prevented and downsizing of the image forming apparatus is realized.
摘要:
A glass-run channel comprises a sectionally U-shaped body which is installed on a window frame of a door of a vehicle and a glass sealing lip which slidably contacts a windowpane 81 which is opened and closed. The rear surface of the glass sealing lip and/or the inner surface of the body are covered with a sliding-contact material formed of a material different from that of the body and having a high degree of sliding-contact performance.
摘要:
An image forming apparatus includes a rotatable photosensitive member including a conductive base and a photosensitive layer located on a surface of the base; a charging device located in the vicinity of the photosensitive member for charging the photosensitive layer; a charge removing device located upstream with respect to the charging device in a rotation direction of the photosensitive member for radiating light toward the photosensitive layer prior to charging performed by the charging device to uniformize a surface potential of the photosensitive layer; a light radiation device for radiating light to a charging area of the photosensitive layer in the state of being charged by the charging device and for adjusting the amount of the light to be radiated; an exposing device for radiating light corresponding to an image toward the photosensitive layer in the state of being charged; a developing device located downstream with respect to the exposing device in the rotation direction of the photosensitive member; a change detection device for detecting a change in at least one of a charging potential of the photosensitive layer and a sensitivity of the photosensitive layer; and a compensation device for compensating for the change by adjusting the amount of the light radiated toward the charging area by the light radiation device based on results obtained by the change detection device.
摘要:
A binary image processing apparatus is provided which is capable of clearly and stably performing binary encoding of an image signal having a level corresponding to the density of each inputted pixel even when the difference in density between characters and background is small. Such apparatus includes a first level discriminating device which has a first input terminal for receiving an image signal having a level corresponding to the density of a pixel of the image signal and a second input terminal for receiving a signal indicative of a discrimination level so as to discriminate the level of the image signal by the discrimination level into binary data. A differential device obtains a differential value of the image signal at the pixel and a second level discriminating device discriminates the level of the differential value by a predetermined discrimination level. In response to image signals in the vicinity of the pixel, a calculating device determines an average value of density levels in the vicinity of the pixel and a discrimination level changing device supplies the average value to the second input terminal of the first level discriminating device but retains the discrimination level inputted to the second input terminal of the first level discriminating device when the differential value exceeds and is not more than the predetermined discrimination level.
摘要:
A capillary-retaining structure for an ultrasonic horn used in a wire bonding apparatus including a stress relief hole formed inside of a capillary attachment hole that is opened at an end portion of the ultrasonic horn. Thus, the capillary retention by the ultrasonic horn is stabilized, and the vibrational characteristics of the ultrasonic horn are also stabilized, thus improving overall bondability in wire bonding. The same effect can be obtained by setting the thickness of a portion between the end surface of the horn and the capillary attachment hole to be thin or by utilizing a bold and nut combination to hold the capillary.