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Device and method for stacking green ceramic sheets

A lamination device and technology of green ceramic sheets, applied in lamination devices, chemical instruments and methods, lamination auxiliary operations, etc., can solve the problems of stretching green ceramic sheets, reducing the flatness of green ceramic sheet circuits, and pollution of green ceramic sheets and other problems, to achieve the effect of convenient and precise positioning operation

Active Publication Date: 2018-06-26
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the prior art are: after lamination, due to the existence of coarse positioning pins, the coarse positioning pins in the subsequent lamination process will break the vacuum packaging bag, and the isostatic pressure liquid will flow into the vacuum packaging bag to cause pollution of the green ceramic sheet; The presence of the rear coarse positioning pins makes the green ceramic sheet pulled by the coarse positioning pins during the isostatic pressing process, and is not completely in a free state, which affects the lamination effect; the existing method either uses the existing bottom plate with holes for lamination after the lamination is completed. Pressure, so that the green ceramic sheet is pressed into the hole of the bottom plate, causing the green ceramic sheet to be stretched, or even broken, and affect the integrity of the circuit pattern, or transfer the laminated green ceramic sheet to another non-porous bottom plate, The transfer process will inevitably cause distortion and deformation of the green ceramic sheet, which will reduce the flatness of the green ceramic circuit and cause the problem of misalignment between the green ceramic sheets

Method used

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  • Device and method for stacking green ceramic sheets
  • Device and method for stacking green ceramic sheets
  • Device and method for stacking green ceramic sheets

Examples

Experimental program
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Effect test

Embodiment 1

[0049] 1. Designed a base plate for LTCC green ceramic laminates, such as Figure 1a and 1b shown.

[0050] There are four coarse positioning pin holes on the bottom plate, which are used to install coarse positioning pins and complete the rough positioning of LTCC green ceramic sheets; there are four positioning through holes, which are used for precise positioning between green ceramic sheets. The backside of the coarse positioning pin hole and the positioning through hole are respectively designed as the reverse countersunk hole 1 and the reverse countersunk hole 2 with sinking grooves. The depth of the sinking groove is not less than 2mm, so as to ensure that the coarse positioning pins do not expose the lower surface of the bottom plate during the lamination process. Make the lower surface of the bottom plate closely adhere to the parallel light platform during the stacking process.

[0051] 2. Coarse positioning pins are designed for rough positioning when stacking gree...

Embodiment 2

[0060] On the basis of the above embodiments, the present invention also mentions a method for laminating green ceramic sheets, which is carried out according to the following steps:

[0061] Step 1: Screw the coarse positioning pin into the coarse positioning pin hole of the bottom plate, and make sure that the countersunk nut part does not expose the lower surface of the bottom plate, and the smooth part protrudes from the upper surface of the bottom plate, such as Figure 5 shown.

[0062] Step 2: Put the bottom plate on the parallel light platform, let the parallel light shine on the bottom plate through the transparent glass on the platform, and output the parallel light through the alignment through hole, such as Figure 6 shown.

[0063] Step 3: Put the first green ceramic sheet, that is, green ceramic sheet 1, on the bottom plate, make the corresponding coarse positioning pin holes on the green ceramic sheet 1 pass through the corresponding coarse positioning pins on ...

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Abstract

The invention discloses a device and method for laminating green ceramic sheets, belonging to the technical field of microwave integrated circuits, comprising a base plate, rough positioning pins, first leveling screws and second leveling screws; the back side of the rough positioning pin holes on the base plate It has a countersunk hole, which ensures the tight fit between the bottom surface of the bottom plate and the transparent glass on the parallel light platform during lamination; the nut of the coarse positioning pin is designed as a "counter-sunk head", which facilitates the bottom plate during lamination. It fits closely with the parallel optical platform; the lower half of the coarse positioning pin has a thread, which is convenient for the coarse positioning pin to be screwed into and fixed in the bottom plate. The invention can not only ensure that the green ceramic sheet can enter the lamination process smoothly without stretching, breaking, twisting, deformation or even layer misalignment, but also can ensure that there is no damage to the vacuum packaging bag and no pulling of the rough positioning pin during the lamination process. And other effects, so that the green ceramic sheet can be laminated in a relatively free state.

Description

technical field [0001] The invention belongs to the technical field of microwave integrated circuits, and in particular relates to a device and method for laminating green ceramic sheets. Background technique [0002] LTCC is the English abbreviation of low temperature co-fired ceramics. LTCC multilayer circuit is to stack and sinter multilayer LTCC green ceramic sheets with circuits and metallized vias to form circuits. The performance of the circuit has a great relationship with the lamination accuracy and the deformation, fracture and interlayer misalignment of the green ceramic sheet during the lamination process. [0003] For the lamination of LTCC green ceramic sheets, in addition to using expensive automatic equipment, the more economical lamination method is to first complete the rough positioning on the bottom plate with coarse positioning pins, and then observe under a microscope to see the position on the green ceramic sheet. The alignment holes are alignment mar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B38/18B32B37/10
CPCB32B37/10B32B38/1841
Inventor 王斌宋振国胡莹璐赵秉玉付延新桑锦正
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP