摘要:
A micro-bump forming apparatus includes: a film attachment mechanism that attaches a film on a surface of a substrate; exposure and developing mechanisms that provide openings in the film on electrodes formed on the substrate; a solder ball loading mechanism that loads solder balls into the openings, a flux printing mechanism that prints flux through the openings loaded with the solder balls; a reflow part that heats the solder balls to form solder bumps; and a film detachment mechanism that detaches the film from the surface of the substrate. After a loading head loads the solder balls into the openings of the film, a controller of the solder ball loading mechanism allows a line sensor to operate to check a loading state of the solder balls, and determines, based on the check result, whether to reload the solder balls.
摘要:
A multimode input circuit comprises a input terminal, first outputting circuit including a buffer circuit, for receiving a first signal having a first amplitude variation via the input terminal and outputting the first signal of a preset potential; second outputting circuit for receiving a second signal having a second amplitude variation different from the first amplitude variation via the input terminal and outputting a third signal of a preset potential, the second outputting circuit including a power source supplying terminal for supplying the same potential as the maximum potential of the second signal, a first FET having a source connected to said power source supplying terminal, a gate supplied with a selection signal for specifying one of the input signals to be selected by the multimode input circuit and a drain, and a second FET formed to make a complementary structure together with the first FET and having a drain connected to the drain of the first FET, a gate connected to the input terminal and a source connected to a circuit ground, and selecting circuit for receiving the first and third signals from the first and second outputting circuit and a selection signal from the exterior and selecting and outputting one of the first and third signals according to the state of the selection signal.
摘要:
A P-well region is provided in a semiconductor substrate of N-type. A P-channel MOSFET is arranged in the N-type substrate while an N-channel MOSFET is arranged in the P-well region. The drain regions of the respective MOSFETs consist of high concentration impurity diffused regions and low concentration impurity diffused regions arranged about the respective high concentration impurity diffused regions. Also, a drain electrode is provided to cover the entire of the high and low concentration impurity diffused regions.
摘要:
A non-volatile semiconductor device includes word lines, and a non-volatile memory cell array having a plurality of non-volatile memory cells respectively connected to the word lines. The non-volatile semiconductor memory device further includes a level shifter for receiving, in a programmming mode, an address signal supplied from outside, and shifting the potential level of the address signal to a higher programming potential level, and a row decoder, provided between the word lines and the level shifter, for receiving and decoding the address signal which has been shifted by the level shifter, and selecting one of the word lines in accordance with the result of the decoding of the address signal, and setting the potential of the selected word line to the programming potential level.