Title:
METHOD FOR MANUFACTURING CERAMIC CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO/2021/235721
Kind Code:
A1
Abstract:
The present invention relates to a ceramic circuit board and, more specifically, to a ceramic circuit board used as a board for a power semiconductor. The present invention relates to a method for manufacturing a ceramic circuit board in which a copper pattern is formed by printing a copper paste layer on a ceramic board, and provides the method for manufacturing a ceramic circuit board comprising the steps of: preparing a ceramic board having a first surface and a second surface parallel to the first surface; and forming a plurality of copper layers on the first surface of the ceramic board, wherein the step of forming a plurality of copper layers comprises the steps of: printing a bonding paste on the first surface of the ceramic board and then drying the printed bonding paste to form a bonding paste layer, and compressing the dried bonding paste layer and then sintering the compressed bonding paste layer to form a first copper layer; printing a laminating paste on the first copper layer and then drying the printed laminating paste to form a laminating paste layer, and compressing the dried laminating paste layer and then sintering the compressed laminating paste layer to form a second copper layer. The method for manufacturing a ceramic circuit board, according to the present invention, has an advantage in that a three-dimensional pattern can be formed on the ceramic board so as to enable correspondence to various types of semiconductor elements mounted on the board.
Inventors:
KIM MIN SOO (KR)
BAE IL SEOK (KR)
PARK JIN SU (KR)
BAE IL SEOK (KR)
PARK JIN SU (KR)
Application Number:
PCT/KR2021/005346
Publication Date:
November 25, 2021
Filing Date:
April 28, 2021
Export Citation:
Assignee:
COMET NETWORK CO LTD (KR)
International Classes:
H05K3/12; H05K1/02; H05K1/03; H05K1/09
Foreign References:
| KR102029901B1 | 2019-10-08 | |||
| JPH1075025A | 1998-03-17 | |||
| KR20100056356A | 2010-05-27 | |||
| KR101089959B1 | 2011-12-05 | |||
| KR101025520B1 | 2011-04-04 | |||
| KR102212836B1 | 2021-02-05 |
Attorney, Agent or Firm:
DYNE PATENT & LAW FIRM (KR)
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