Electronics Forum: assemblers (Page 512 of 598)

Re: Attenna assembly for RF board

Electronics Forum | Tue Feb 02 10:18:56 EST 1999 | Justin Medernach

| I have a recent design (1 component side only) that calls for 2 surface mounted antenna's (brass plated) to be mounted on a PCB. The problem arises when the PCB is 18x11.25 and has 15 to 20 PCB's in the pallet (IE weight, fixturing to hold the ant

Re: Attenna assembly for RF board

Electronics Forum | Tue Feb 16 13:57:50 EST 1999 | Ron Beasley

| | I have a recent design (1 component side only) that calls for 2 surface mounted antenna's (brass plated) to be mounted on a PCB. The problem arises when the PCB is 18x11.25 and has 15 to 20 PCB's in the pallet (IE weight, fixturing to hold the a

Re: white residue

Electronics Forum | Wed Jan 27 21:02:53 EST 1999 | Dave F

| i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperatu

Re: white residue

Electronics Forum | Thu Jan 28 08:58:10 EST 1999 | Peet

| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Re: Moisture Sensitivity and Package Cracking

Electronics Forum | Mon Feb 01 10:06:51 EST 1999 | Chris Fontaine

All of our moisture sensitive components are shipped to us in vacuum sealed, desiccated bags with a moisture indicator. When the parts are removed from the bag (this is done at either SMT setup, or in the stockroom) the indicator is checked. If it

Re: no-clean mask for gold fingers

Electronics Forum | Sun Jan 31 23:03:57 EST 1999 | Dennis O.

| | hi, | | i am working towards developing a no-clean process for a customer at contract manufacturing facility. the assemblies have gold fingers on them. these are masked to prevent from any damage to them during reflow soldering. the earlier pr

Re: Dry Storage Options

Electronics Forum | Fri Jan 22 17:38:07 EST 1999 | Michael Larsen

| | I was just wondering what solutions are out there for dry storage. Our basic need is to be able to store boards that have been baked and need to remain moisture free for up to a week. | | | Michael: Let's take a different angle on this. Why

Re: SMT line

Electronics Forum | Thu Jan 21 10:08:07 EST 1999 | Dave F

| Need to know from your experience a set of smt equipment for low volume manufacturing (approx. 800K parts/yr). Types to handle are standards i.e., 0404-7343, soic's, plcc's, pqfp, tsop, soj, BGA, chip res. smt conn. | I would like to know a recomm

Re: Glob Top Questions

Electronics Forum | Thu Jan 14 16:14:18 EST 1999 | Earl Moon

| Does anyone have any data or experience with voids in Glob Top applications? We are working with a RF application and I'm trying to find information on RF performance characteristics and moisture absorption on a glob toped devices. We have determin

Re: Water quality for rinse water

Electronics Forum | Wed Dec 30 10:27:04 EST 1998 | Scott McKee

| We use a inline water wash system to clean our PWA's. How | low should i be able to let my DI water resistivity get before replacing the DI tanks. Is there a standard i can get on this subject. | | Thanks | JL | You'll want to look at IPC-AC-62A


assemblers searches for Companies, Equipment, Machines, Suppliers & Information