摘要:
To attain an object of providing an insert for holding wide-ranging kinds of area array type electronic components and realizing certain connection between external terminals of an area array type electronic component and connection terminals of a socket, and an electronic component testing apparatus and an electronic component testing method using the same, a thin plate 163 for supporting an IC device 2 is positioned between an external terminal face 23 of the IC device 2 and a connection terminal face 42 of a socket 40, and a thickness of the thin plate 163 is made to be approximately equal to or less than a distance between a tip portion of the external terminals 22 and the external terminal face 23.
摘要:
An electronic device testing apparatus for conducting a test by pressing input/output terminals of electronic devices to be tested against contact portions of a test head portion (100) while loading the electronic devices to be tested on electronic device conveying media (11, 12, 13, 14) by a moving means: wherein two electronic device conveying media (11, 12) loaded with electronic devices to be tested are gripped by one moving means and two electronic device conveying media (13, 14) loaded with electronic devices to be tested are gripped by the other moving means at a time, and the respective moving means independently conveys to and from the contact groups.
摘要:
To attain an object of providing an insert for holding wide-ranging kinds of area array type electronic components and realizing certain connection between external terminals of an area array type electronic component and connection terminals of a socket, and an electronic component testing apparatus and an electronic component testing method using the same, a thin plate 163 for supporting an IC device 2 is positioned between an external terminal face 23 of the IC device 2 and a connection terminal face 42 of a socket 40, and a thickness of the thin plate 163 is made to be approximately equal to or less than a distance between a tip portion of the external terminals 22 and the external terminal face 23.
摘要:
A semiconductor device testing apparatus having a reduced transverse width and compact in size is provided. Adjacent to a constant temperature chamber 101 containing therein a vertical transport means is located a test chamber 102 which is in turn adjoined by a temperature-stress removing chamber 103 likewise containing therein a vertical transport means, so that the constant temperature chamber 101, the test chamber 102 and the temperature-stress removing chamber 103 are arranged transversely in a line. Further, a loader section 300 is located in front of the constant temperature chamber, and an unloader section 400 is located in front of the test chamber and the temperature-stress removing chamber. With this arrangement, the transverse width of the testing apparatus may be reduced to about three test tray lengths.
摘要:
A semiconductor device testing apparatus having a reduced transverse width and compact in size is provided. Adjacent to a constant temperature chamber containing therein a vertical transport means is located a test chamber which is in turn adjoined by a temperature-stress removing chamber likewise containing therein a vertical transport means, so that the constant temperature chamber and the test chamber are arranged transversely in a line, while the temperature-stress removing chamber is located in front of the test chamber when viewed in front view of the apparatus. Further, a loader section is located in front of the constant temperature chamber, and an unloader section is located above the temperature-stress removing chamber. With this arrangement, the transverse width of the testing apparatus may be reduced to about two test tray lengths.
摘要:
Both side walls of a channel groove for guiding integrated circuits with J-shaped leads are formed at an angle greater than 90 degrees to the bottom of the channel groove.
摘要:
A right unit period corresponding to a right-eye image and a left unit period corresponding to a left-eye image are set alternately. The scanning line driving circuit selects the plurality of scanning lines in several units at each right unit period, the glasses control circuit controls both of the shutter for the right eye and the shutter for the left eye to be in the closed state at least a portion of an image update period at which the data line driving circuit supplies a gradation potential corresponding to the right-eye image to each data line and the glasses control circuit controls the shutter for the right eye to be in the opened state and controls the shutter for the left eye to be in the closed state at the display period after the lapse of the image update period.
摘要:
In one unit period of a display period, each first pair of scanning lines is selected and a gray scale potential corresponding to pixels of one scanning line of the first pair of scanning lines is supplied to each signal line. In another unit period, each second pair of scanning lines is selected and a gray scale potential corresponding to pixels of one scanning line of the second pair of scanning lines is supplied to each signal line.
摘要:
The television (1) includes: an infrared radiation receiver (119) which receives from a user an instruction to select a program cell; and a CPU (118) which generates a user interface screen of an electronic program table to be displayed on an LCD (110). The CPU (118) generates the user interface screen of the electronic program table such that a time zone item column located in a left direction of a selected program cell and a time zone item column located in a right direction of the selected program cell are indicated with deep blue, and other time zone item columns are indicated with light blue.
摘要:
An electro-optical device includes pixel electrodes corresponding to intersections of a plurality of scanning lines and a plurality of data lines and specific to the pixels, a common electrode facing the pixel electrode, and a switching element that establishes conduction between the data line and the pixel electrode when a selection voltage is applied to the scanning line, a control circuit that supplies a high voltage having a predetermined value and a low voltage lower than the high voltage alternately at predetermined intervals to the common electrode; a scanning line driving circuit that selects the plurality of scanning lines in a predetermined order and that applies the selection voltage to each of the selected scanning lines; and a data line driving circuit that supplies a data signal defining the grayscale levels of the pixels to the data lines in a period during which one of the scanning lines is selected and during which the voltage applied to the common electrode is maintained at the high voltage or the low voltage and that performs a precharge operation for precharging the plurality of data lines to a predetermined potential in a period of time including a period during which the voltage applied to the common electrode changes from one of the high voltage and the low voltage to the other.