The commission of cell phone jammer should be finished ASAP

The commission of cell phone jammer  should be finished ASAP. 
HW will also require the ID should not be placed near the antenna metal parts. One can imagine a built-in antenna design mobile phone, its manufacturing cost than the design of an external antenna on the phone to your 20-25%, the main factors is the antenna design, material requirements and circuit design and The manufacturing costs are higher on average some. Usually the architect (MD) and the Industrial Designers (ID) will be controversial, MD said ID is a painter, painting some of the things we usually do not, the ID would say MD is stupid, do not do according to their design, the mobile phone not sell well. Therefore, a new mobile phone in hands-on design, each department will design creativity of the ID department review. In short, the common goal in order to maximize the occupation of the market. Foreign brands in the product strategy, remains-to-bottom product line of attack, and trend-setting strategies in high-end market, domestic brands started R & D on low-end products, because relative to high-end mobile phones, middle and low phone greater market capacity, it is estimated that at least a 25% share of the total market. Channel strategy, foreign brands have begun to learn from the experience of domestic brands, the use of the underwriting system.
Tell each other to use the PC + ABS material, if strong enough will be replaced by the pure PC material, and allow them to advance consideration of the abrasive size (basically it will not matter). Clamshell and slider machines, BC shell must use the PC material or more fiberglass material. The side buttons, headphone jack, the USB hole as far as possible to distance, otherwise the card hooks, screws, etc. can not be placed, and shell poor rigidity. In extrusion or injection molding for the blind hole, the hole depth shall not be greater than 4 times the aperture. Surface of the phone deco with double sided tape fixed to increase the hot melt column or buckle to prevent the doing of the temperature impact, and environmental testing, deco local tilt, especially IML parts. Button battery, battery cover, shaft, etc..
But please keep the minimum wall thickness 0.7mmb after the shell put a large hole diameter of the conch: conch diameter +0.2 mmc, conch diameter: 2 * M +0.2 mmd. The Backshell wear screw hole diameter: M +0.2 mme surface of the shell and conch match. BOSS z to flesh> = 0.8mm. M is self-tapping screw diameter stud: the former shell stud OD = 2x screw diameter (b) stud diameter (ABS, ABS + PC) = screw diameter of 0.40mm; stud inside diameter (PCs) = screw diameter -0.30mm/0.35mm. (You can press the 0.30mm to design, test pass but the repair mode and glue).