Holding member for inspection, inspection device and inspecting method
First Claim
1. An inspection device for inspecting electrical characteristics of a power device having terminals on its top surface and bottom surface, the inspection device comprising:
- a support plate for mounting thereon a chip in which the power device is formed;
a positioning member for positioning the chip mounted on the support plate;
a metal film formed on a surface of the support plate in a range from an area on which the chip is mounted to an area on which the chip is not mounted;
a probe pin configured to be brought into contact with the metal film in the area on which the chip is not mounted; and
a fritting probe pin making a pair with the probe pin, which is in contact with the metal film together with the probe pin and electrically conducts the probe pin to the metal film by utilizing a fitting phenomenon,wherein the metal film in the area on which the chip is not mounted makes it possible to electrically conduct the probe pin with the terminal on the bottom surface of the power device when the probe pin is brought into contact with the metal film in the area on which the chip is not mounted.
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Accused Products
Abstract
Installed in a probe device is a holding member for inspection which can be mounted on a chuck. The holding member for inspection includes a support plate capable of mounting thereon a chip in which the power device is formed; pins for positioning the chip mounted on the support plate; and a metal film formed on a surface of the support plate in a range from a mounting area on which the chip is mounted to an exposed area on which the chip is not mounted. When inspecting the power device, the chip is fixed onto the mounting area in the holding member for inspection, one probe pin is brought into contact with a terminal on a top surface of the chip; and another probe pin is brought into contact with the metal film in the exposed area.
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Citations
10 Claims
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1. An inspection device for inspecting electrical characteristics of a power device having terminals on its top surface and bottom surface, the inspection device comprising:
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a support plate for mounting thereon a chip in which the power device is formed; a positioning member for positioning the chip mounted on the support plate; a metal film formed on a surface of the support plate in a range from an area on which the chip is mounted to an area on which the chip is not mounted; a probe pin configured to be brought into contact with the metal film in the area on which the chip is not mounted; and a fritting probe pin making a pair with the probe pin, which is in contact with the metal film together with the probe pin and electrically conducts the probe pin to the metal film by utilizing a fitting phenomenon, wherein the metal film in the area on which the chip is not mounted makes it possible to electrically conduct the probe pin with the terminal on the bottom surface of the power device when the probe pin is brought into contact with the metal film in the area on which the chip is not mounted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An inspection device for inspecting electrical characteristics of a power device, including a holding member for inspection for holding the power device when inspecting the electrical characteristics of the power device having terminals on its top surface and bottom surface, the inspection device comprising:
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a top surface terminal probe pin which is in contact with a top surface of a chip held onto the holding member for inspection, and is electrically conducted with the terminal on the top surface of the power device; a bottom surface terminal probe pin which is in contact with a metal film in an area on which the chip on the holding member for inspection is not mounted, and is electrically conducted with the terminal on the bottom surface of the power device; a top surface terminal fritting probe pin making a pair with the top surface terminal probe pin, which is in contact with the terminal on the top surface of the power device together with the top surface terminal probe pin and electrically conducts the top surface terminal probe pin to the terminal on the top surface by utilizing a fritting phenomenon; and a bottom surface terminal fritting probe pin making a pair with the bottom surface terminal probe pin, which is in contact with the metal film together with the bottom surface terminal probe pin and electrically conducts the bottom surface terminal probe pin to the metal film by utilizing a fritting phenomenon, wherein the holding member for inspection includes; a support plate for mounting thereon the chip in which the power device is formed; a positioning member for positioning the chip mounted on the support plate; and the metal film formed on a surface of the support plate in a range from an area on which the chip is mounted to the area on which the chip is not mounted.
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10. An inspecting method for inspecting electrical characteristics of a power device by using an inspection device, wherein the inspection device inspects the electrical characteristics of the power device and includes a holding member for inspection for holding the power device when inspecting the electrical characteristics of the power device having terminals on its top surface and bottom surface, the inspection device comprising:
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a top surface terminal probe pin which is in contact with a top surface of a chip held onto the holding member for inspection, and is electrically conducted with the terminal on the top surface of the power device; and a bottom surface terminal probe pin which is in contact with a metal film in an area on which the chip on the holding member for inspection is not mounted, and is electrically conducted with the terminal on the bottom surface of the power device, wherein the holding member for inspection includes; a support plate for mounting thereon the chip in which the power device is formed; a positioning member for positioning the chip mounted on the support plate; and the metal film formed on a surface of the support plate in a range from an area on which the chip is mounted to the area on which the chip is not mounted, wherein the inspecting method brings, from a top surface side of the holding member for inspection, the top surface terminal probe pin into contact with the top surface of the chip on the holding member for inspection;
brings the bottom surface terminal probe pin into contact with the metal film;
applies a voltage to the terminals on the top surface and the bottom surface of the power device; and
inspects the electrical characteristics,a top surface terminal fritting probe pin is brought into contact with the terminal on the top surface of the power device together with the top surface terminal probe pin and the top surface terminal probe pin is electrically conducted with the terminal on the top surface by utilizing a fritting phenomenon, and a bottom surface terminal fritting probe pin is brought into contact with the metal film together with the bottom surface terminal probe pin and the bottom surface terminal probe pin is electrically conducted with the metal film by utilizing a fritting phenomenon.
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Specification