Insulation is undesirable it is us all the time relatively hard pilot blemish, the do poorly done work over again that its undesirable consequence is small lot not just and cause a product to procrastinate period, its most serious consequence is cause a client complain, test of flying needle of electric test ATG uses commonly use low-pressure test (voltage: 10V insulation resistance: 10M? ) , sometimes after report measures test OK, reoccupy high pressure checks (voltage: 250V insulation resistance: 100M? ) . Insulation produces his undesirably to basically have two respects generation: 1. Because control of corrode of corrode reticle side etchs corrode of side of circuitry of the generation when engine production, next by brush board line board, brushing board make in the process line edge dash forward the cupreous silk of the edge ruptures come down, the bridge is caused to receive between lead, imprint again on the green oil of insulation makes its bridge receives the bridge that was being formed is not dead short. 2. Brush trigger board the cupreous silk take out that reachs bath control to want to know to brush trigger to be able to form corrode of line side side, if the cupreous pink that causes is clean without bath, remain is in board face, make form insulation undesirable. Undesirable to be isolated from blemish is not to cannot be put an end to, want to be improved further from equipment and craft however, its control a point besides prevent this to etch besides side corrode, its are main reference point is brushing board line. With us current equipment capacity is OK from improved at 2 o'clock below: 1. In bath and high-pressured bath paragraph increase filter device, prevent to be able to cause the eyewinker with undesirable insulation and remain of petty copper silk board face; 2. Brushing board line to receive board place to install machine of cleanness of one bedplate face (Tong Guangcheng resembles sticking dirt machine) the function that because stick dirt machine,has purify eyewinker and cupreous white. Above can reduce insulation greatly at 2 o'clock bad problem arises, but want to be solved thoroughly, besides above two outside that must undertake transforming to grinding trigger, use eruption to grind brush.

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