CN201430604Y

CN201430604Y - Mobile communication terminal circuit board module

Info

Publication number: CN201430604Y
Application number: CN2009200394972U
Authority: CN
Inventors: 庞庆锋; 袁杰
Original assignee: CHANGZHOU SHOUXIN TIANFA ELECTRONICS Co Ltd
Current assignee: CHANGZHOU SHOUXIN TIANFA ELECTRONICS Co Ltd
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-03-24
Anticipated expiration: 2019-04-15

Abstract

The utility model relates to a mobile communication terminal circuit board module, which comprises a printed circuit board PCB, a screening cover, an electronic component circuit and a tinned ball, wherein the electronic component circuit is arranged in a seal cavity between the front surface of the printed circuit board PCB and the screening cover, and the tinned ball is welded on the back surface of the printed circuit board PCB. The mobile communication terminal circuit board module has the function of a conventional mobile communication terminal, has low cost and high universality, is suitable for almost all mobile telephone platforms, and simultaneously has the advantages of high expansibility, easy scheme realization, lower research and development cost investment and the like.

Description

The communication terminal circuit board module

Technical field

The utility model relates to a kind of communication terminal circuit structure, especially a kind of communication terminal circuit board module that is used to have the PCB structure of cell-phone function.

Background technology

Along with growth in the living standard, the electrical equipment kind in the general family also becomes increasingly abundant.Mobile phone is as the up-to-date invention foremost in this century, and function, outward appearance are also day by day novel, and mobile phone is once called as mobile phone, portable, mobile telephone, is telephone terminal portable, that can move in a big way.

Using the widest mobile phone in the world at present is GSM mobile handset and CDMA mobile phone.In the China's Mainland and Taiwan the most general with GSM, CDMA and Personal Handyphone System PHS mobile phone are also very popular, these all are so-called second generation mobile phone 2G, and they all are digital standards, except can carrying out voice communication, can also receive and dispatch note, multimedia message, WAP (wireless application protocol) etc.The part mobile phone has also comprised more function such as PDA, game machine, MP3, photograph, recording, shooting, GPS except typical telephony feature, the oriented trend that has the PDA development of cell-phone function.In appearance, design style also becomes more diverse, and the change of mobile phones design style mainly is that the change by mobile phone consumer groups causes.Mobile phone consumer in the past mainly concentrates on the middle and high end client, and this part crowd more pays attention to the utility function of mobile phone, a little less than the concern relatively to outward appearance.But along with the raising of mobile phone popularity rate, customer group has expanded population of adolescent to, and this part client is higher to the attention rate of cell phone appearance.Generally all should comprise at least one LCDs and a cover button on the cell phone appearance, part adopts the mobile phone of touch-screen to reduce button.But the diversity of outward appearance has also caused the frequent change of embedded in mobile phone PCB printed circuit board arrangement needs, and the PCB circuit R﹠D cycle is long, the technological deficiency that the producing cost cost is high.Design a kind of universal PC B plated circuit of practicality, allow when cell phone appearance changes, do not need additionally, reduce whole production cost, reduce the R﹠D cycle, make product more competitive on market.

The utility model content

The purpose of this utility model provides a kind of general communication terminal circuit board module, solves embedded in mobile phone PCB printed circuit board arrangement and requires according to cell phone appearance that needs frequently change, the PCB circuit R﹠D cycle is long, the technical problem that the producing cost cost is high.

The utility model solves above technical problem by the following technical solutions, a kind of communication terminal circuit board module, comprise PCB printed circuit board, screening cover, electronic component circuit and tin ball, the electronic component circuit is arranged in the front and the annular seal space between the screening cover of PCB printed circuit board (PCB), and the back side of PCB printed circuit board (PCB) is the tin ball of welding; Described electronic component circuit comprises CPU governor circuit, power supply and power source charges management circuit, oscillating circuit, radio circuit, touch screen control circuit, voicefrequency circuit, memory circuitry, external common interface circuit, the CPU governor circuit links to each other with power supply and power source charges management circuit, radio circuit, touch screen circuitry, voicefrequency circuit, memory circuitry, external common interface circuit respectively, radio circuit links to each other with oscillating circuit, and power supply and power source charges management circuit link to each other with memory circuitry, external common interface circuit respectively.

Utilize the manufacturing technology of chip, electronic component circuit on the PCB is encapsulated, and employing module shape PCB adds the method for screening cover, with traditional PCB printed circuit board (PCB) and chip fabrication techniques combination, and, carry out the encapsulation of chip-scale and plant ball at the back side of this PCB printed circuit board (PCB).

The utility model possesses conventional functions of mobile communication terminal, and is with low cost, and the versatility height is applicable to nearly all cell phone platform, also possesses the autgmentability height simultaneously, and scheme realizes simple, the low beneficial effect that waits of R﹠D costs input.

Description of drawings

Fig. 1 is the theory structure perspective view of the utility model communication terminal circuit board module.

Fig. 2 is the front schematic view of the utility model communication terminal circuit board module.

Fig. 3 is the schematic rear view of the utility model communication terminal circuit board module.

Fig. 4 is the signal catenation principle block diagram of the utility model communication terminal circuit board module and external equipment.

Among the figure: 1-PCB printed circuit board (PCB), 2-electronic component circuit, 3-screening cover, 4-tin ball.

Embodiment

Further specify the technical solution of the utility model below in conjunction with the Fig. 1 in the accompanying drawing, Fig. 2, Fig. 3, Fig. 4.

As shown in Figure 1, a kind of communication terminal circuit board module of the utility model comprises PCB printed circuit board (PCB) 1, screening cover 3, electronic component circuit 2 and tin ball 4, electronic component circuit 2 is arranged in the front and the annular seal space between the screening cover 3 of PCB printed circuit board (PCB) 1, and the back side of PCB printed circuit board (PCB) 1 is the tin ball 4 of welding.On PCB printed circuit board (PCB) 1 and dependency structure, drawn the manufacturing mode of IC chip, adopted BGA module shape PCB to add the method for screening cover, produce the communication terminal circuit board module that can be used for the secondary research and development and produce, i.e. module shape PCB.

As Fig. 1, Fig. 2 and shown in Figure 3, module size reaches 32mm * 26mm, and at the back side of this PCB printed circuit board (PCB) 1, carries out the encapsulation of chip-scale and plant ball, and planting the ball height is 0.7mm.Describe the structure of communication terminal circuit board module below in detail, modular structure is of a size of long 32mm * wide 26mm * high 2.5mm, and is similar to the common chip class component, uses surface mount process, can mount by the chip class component fully; PCB printed circuit board (PCB) 1 adopts the printed circuit board of craft of gilding, thickness is 0.8mm, PCB printed circuit board (PCB) 1 front is 2 in an electronic component circuit, be mainly used in mounting of modular circuit element, the back side is used to implant tin ball 4 usefulness for the tin ball bonding pad, in the tin ball bonding pad, peripheral pads is structural ground pad overleaf, be beneficial to module body heat radiation and and and other products between electromagnetic compatibility; The height of screening cover 3 is 31mm * 25mm * 1.2mm, because module itself has radio circuit, considers the stability and the Electro Magnetic Compatibility of product, and electronic component circuit 2 peripheries in module are equipped with whole metallic shield lid 3.Prevent of the influence of the electromagnetic wave of radio circuit generation to other product circuits; Tin ball 4 corresponding PCB printed circuit board (PCB) 1 back side tin ball bonding pads, the corresponding tin ball 4 of implantation position makes the communication terminal circuit board module can be used for the batch process that the back side mounts.

As shown in Figure 4, electronic component circuit 2 of the present utility model comprises CPU governor circuit, power supply and power source charges management circuit, oscillating circuit, radio circuit, touch screen control circuit, voicefrequency circuit, memory circuitry, external common interface circuit, the CPU governor circuit links to each other with power supply and power source charges management circuit, radio circuit, touch screen circuitry, voicefrequency circuit, memory circuitry, external common interface circuit respectively, radio circuit links to each other with oscillating circuit, and power supply and power source charges management circuit link to each other with memory circuitry, external common interface circuit respectively; The CPU governor circuit adopts the MT6226B baseband chip, radio circuit adopts the MT6129 chip, oscillating circuit adopts the Sky77318 chip, power supply and power source charges management circuit, voicefrequency circuit, memory circuitry, external common interface circuit adopt the general electronic component in market respectively, signal with the utility model communication terminal circuit board module connects other external equipment in addition, external equipment has duplexer, transducer, LCD module, finger-board, SIM card 1, SIM card 2, battery respectively, according to actual needs, external equipment is not limited to above kind.

Claims

1, a kind of communication terminal circuit board module, it is characterized in that: comprise PCB printed circuit board (PCB) (1), screening cover (3), electronic component circuit (2) and tin ball (4), electronic component circuit (2) is arranged in the front and the annular seal space between the screening cover (3) of PCB printed circuit board (PCB) (1), and the back side of PCB printed circuit board (PCB) (1) is the tin ball (4) of welding.

2, communication terminal circuit board module according to claim 1, it is characterized in that: described electronic component circuit (2) comprises the CPU governor circuit, power supply and power source charges management circuit, oscillating circuit, radio circuit, touch screen control circuit, voicefrequency circuit, memory circuitry, external common interface circuit, the CPU governor circuit respectively with power supply and power source charges management circuit, radio circuit, touch screen circuitry, voicefrequency circuit, memory circuitry, external common interface circuit links to each other, radio circuit links to each other with oscillating circuit, and power supply and power source charges management circuit are respectively and memory circuitry, external common interface circuit links to each other.