Unlock instant, AI-driven research and patent intelligence for your innovation.

Integration method and integration structure of control circuit and surface acoustic wave filter

An integration method and control circuit technology, applied in the direction of electrical components, impedance networks, etc., can solve problems such as large insertion loss and complicated SIP wiring, and achieve the effects of reducing process costs, avoiding complicated electrical connection processes, and high integration

Pending Publication Date: 2020-07-03
NINGBO SEMICON INT CORP
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an integration method and corresponding integration structure of a control circuit and a surface acoustic wave (SAW) filter, to overcome the problems of complicated SIP wiring and large insertion loss in the existing SAW filter packaging and integration process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integration method and integration structure of control circuit and surface acoustic wave filter
  • Integration method and integration structure of control circuit and surface acoustic wave filter
  • Integration method and integration structure of control circuit and surface acoustic wave filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0058] In order to solve the problems of complex wiring and large insertion loss in the package integration of the existing SAW filter, the embodiment of the present invention proposes an integration method and an integration structure of the control circuit and the surface acoustic wave (SAW) filter.

[0059]The method for integrating a control circuit and a surface acoustic wave (SAW) filter according to an embodiment of the present invention includes: providing a substrate, the subs...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An integration method and an integration structure of a control circuit and a surface acoustic wave (SAW) filter. The integration method comprises the steps that a substrate being provided, and a control circuit being formed on the substrate; forming a cavity on the substrate; providing an SAW resonance sheet, wherein an input electrode and an output electrode are arranged on the surface of the SAW resonance sheet; enabling the surface of the SAW resonance sheet to face the substrate, enabling the SAW resonance piece to be bonded to the substrate, and sealing the cavity; and enabling the control circuit to be electrically connected with the input electrode and the output electrode. The SAW filter can be controlled through the control circuit arranged on the substrate, and the problems thatan existing SAW filter serving as a discrete device is integrated on a PCB, so that the electric connection process is complex, and insertion loss is large can be solved.

Description

technical field [0001] The invention relates to the technical field of acoustic wave filters, in particular to an integration method and an integration structure of a control circuit and a surface acoustic wave (SAW) filter. Background technique [0002] SAW is an elastic wave that is generated and propagated on the surface of the piezoelectric substrate material, and its amplitude decreases rapidly as the depth of the substrate increases. The basic structure of the SAW filter is to make two acoustic-electric transducers-comb electrode interdigital transducers (Interdigital Transducer, IDT) on a substrate material with piezoelectric properties, which are used as transmitting transducers and receiving transducers respectively. transducer. The working frequency band of the SAW filter is generally 800MHz-2GHz, and the bandwidth is 17MHz-30MHz. Because of its good selection, wide frequency range, stable performance and high reliability, it has become the most widely used radio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H03H9/64H03H9/54H03H9/02
CPCH03H9/02535H03H9/54H03H9/64H03H3/08H03H9/0557H03H9/1064
Inventor 秦晓珊
Owner NINGBO SEMICON INT CORP