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Title:
EVALUATION EQUIPMENT FOR SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JPH08227922
Kind Code:
A
Abstract:

PURPOSE: To evaluate the cross-sectional profile of an element affecting the performance or reliability of a semiconductor device easily and nondestructively in a short time.

CONSTITUTION: The evaluation equipment for semiconductor device comprises a laser light source 1 for irradiating a wafer 9 with a laser beam B obliquely from above, a two-dimensional CCD sensor 2 secured mechanically to the laser light source 1 and receiving the light R reflected on the surface of the wafer 9, a laser scanning section 3 for scanning on the surface of the wafer 9 with the laser beam B, a signal processing section 4 for extracting the image signal D of the two-dimensional CCD sensor 2 which received the first order reflection light R, a memory section 5 for storing the image signal D, and an image output section 6 for converting the image signal E into an image 12 based on the image signal E read out from the memory section 5 and the scanning data of laser beam.


Inventors:
NAGAYA KAZUHISA
Application Number:
JP3223095A
Publication Date:
September 03, 1996
Filing Date:
February 21, 1995
Export Citation:
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Assignee:
KYUSHU NIPPON ELECTRIC
International Classes:
G01B11/24; H01L21/66; H01S3/00; (IPC1-7): H01L21/66; G01B11/24; H01S3/00
Domestic Patent References:
JPH05187841A1993-07-27
JPH0212002A1990-01-17
JPH05187831A1993-07-27
JPH04268404A1992-09-24
JPS6244610A1987-02-26
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)